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Accepting request 563834 from network

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- Replace forgotten references to /var/adm/fillup-templates
  with new %_fillupdir macro (boo#1069468)
- tighten configuration access rights (forwarded request 563833 from pcerny)

OBS-URL: https://build.opensuse.org/request/show/563834
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/openssh?expand=0&rev=112
This commit is contained in:
Dominique Leuenberger 2018-01-16 08:41:33 +00:00 committed by Git OBS Bridge
commit 97dc338ae5
56 changed files with 695 additions and 18831 deletions
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72
openssh-7.2p2-IPv6_X_forwarding.patch
View File

@ -1,72 +0,0 @@
# HG changeset patch
# Parent 9130c9e19c8a076a7f6f214070283cd3e0326894
Correctly parse DISPLAY variable for cases where it contains an IPv6 address
(which should - but not always is - in (square) brackets).
bnc#847710 - https://bugzilla.novell.com/show_bug.cgi?id=847710
diff --git a/openssh-7.2p2/channels.c b/openssh-7.2p2/channels.c
--- a/openssh-7.2p2/channels.c
+++ b/openssh-7.2p2/channels.c
@@ -4049,18 +4049,19 @@ x11_connect_display(void)
/* OK, we now have a connection to the display. */
return sock;
}
#endif
/*
* Check if it is a unix domain socket. Unix domain displays are in
* one of the following formats: unix:d[.s], :d[.s], ::d[.s]
*/
+ cp = strrchr(display, ':');
if (strncmp(display, "unix:", 5) == 0 ||
- display[0] == ':') {
+ (display[0] == ':' && ((cp - display) < 2)) ) {
/* Connect to the unix domain socket. */
if (sscanf(strrchr(display, ':') + 1, "%u", &display_number) != 1) {
error("Could not parse display number from DISPLAY: %.100s",
display);
return -1;
}
/* Create a socket. */
sock = connect_local_xsocket(display_number);
@@ -4068,30 +4069,39 @@ x11_connect_display(void)
return -1;
/* OK, we now have a connection to the display. */
return sock;
}
/*
* Connect to an inet socket. The DISPLAY value is supposedly
* hostname:d[.s], where hostname may also be numeric IP address.
+ * Note that IPv6 numberic addresses contain colons (e.g. ::1:0)
*/
strlcpy(buf, display, sizeof(buf));
- cp = strchr(buf, ':');
+ cp = strrchr(buf, ':');
if (!cp) {
error("Could not find ':' in DISPLAY: %.100s", display);
return -1;
}
*cp = 0;
/* buf now contains the host name. But first we parse the display number. */
if (sscanf(cp + 1, "%u", &display_number) != 1) {
error("Could not parse display number from DISPLAY: %.100s",
display);
return -1;
}
+
+ /* Remove brackets surrounding IPv6 addresses if there are any. */
+ if (buf[0] == '[' && (cp = strchr(buf, ']'))) {
+ *cp = 0;
+ cp = buf + 1;
+ } else {
+ cp = buf;
+ }
/* Look up the host address */
memset(&hints, 0, sizeof(hints));
hints.ai_family = IPv4or6;
hints.ai_socktype = SOCK_STREAM;
snprintf(strport, sizeof strport, "%u", 6000 + display_number);
if ((gaierr = getaddrinfo(buf, strport, &hints, &aitop)) != 0) {
error("%.100s: unknown host. (%s)", buf,

65
openssh-7.2p2-X11_trusted_forwarding.patch
View File

@ -1,65 +0,0 @@
# HG changeset patch
# Parent 7197d7a6b7c90566c68e980b5f8b937c183e79d0
# enable trusted X11 forwarding by default in both sshd and sshsystem-wide
# configuration
# bnc#50836 (was suse #35836)
Enable Trusted X11 forwarding by default, since the security benefits of
having it disabled are negligible these days with XI2 being widely used.
diff --git a/openssh-7.2p2/ssh_config b/openssh-7.2p2/ssh_config
--- a/openssh-7.2p2/ssh_config
+++ b/openssh-7.2p2/ssh_config
@@ -12,19 +12,30 @@
# Any configuration value is only changed the first time it is set.
# Thus, host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.
# Site-wide defaults for some commonly used options. For a comprehensive
# list of available options, their meanings and defaults, please see the
# ssh_config(5) man page.
-# Host *
+Host *
# ForwardAgent no
# ForwardX11 no
+
+# If you do not trust your remote host (or its administrator), you
+# should not forward X11 connections to your local X11-display for
+# security reasons: Someone stealing the authentification data on the
+# remote side (the "spoofed" X-server by the remote sshd) can read your
+# keystrokes as you type, just like any other X11 client could do.
+# Set this to "no" here for global effect or in your own ~/.ssh/config
+# file if you want to have the remote X11 authentification data to
+# expire after twenty minutes after remote login.
+ ForwardX11Trusted yes
+
# RhostsRSAAuthentication no
# RSAAuthentication yes
# PasswordAuthentication yes
# HostbasedAuthentication no
# GSSAPIAuthentication no
# GSSAPIDelegateCredentials no
# BatchMode no
# CheckHostIP yes
diff --git a/openssh-7.2p2/sshd_config b/openssh-7.2p2/sshd_config
--- a/openssh-7.2p2/sshd_config
+++ b/openssh-7.2p2/sshd_config
@@ -94,17 +94,17 @@ AuthorizedKeysFile .ssh/authorized_keys
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
#UsePAM no
#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
-#X11Forwarding no
+X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PermitTTY yes
#PrintMotd yes
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
#UsePrivilegeSeparation sandbox

34
openssh-7.2p2-X_forward_with_disabled_ipv6.patch
View File

@ -1,34 +0,0 @@
# HG changeset patch
# Parent 2afee80335d5ef7efcf64f3a797e9b10ce0de4ae
Do not throw away already open sockets for X11 forwarding if another socket
family is not available for bind()
diff --git a/openssh-7.2p2/channels.c b/openssh-7.2p2/channels.c
--- a/openssh-7.2p2/channels.c
+++ b/openssh-7.2p2/channels.c
@@ -3937,22 +3937,24 @@ x11_create_display_inet(int x11_display_
}
if (ai->ai_family == AF_INET6)
sock_set_v6only(sock);
if (x11_use_localhost)
channel_set_reuseaddr(sock);
if (bind(sock, ai->ai_addr, ai->ai_addrlen) < 0) {
debug2("bind port %d: %.100s", port, strerror(errno));
close(sock);
-
+ continue;
+ /* do not remove successfully opened sockets
for (n = 0; n < num_socks; n++) {
close(socks[n]);
}
num_socks = 0;
break;
+ */
}
socks[num_socks++] = sock;
if (num_socks == NUM_SOCKS)
break;
}
freeaddrinfo(aitop);
if (num_socks > 0)
break;

56
openssh-7.2p2-additional_seccomp_archs.patch
View File

@ -1,56 +0,0 @@
# HG changeset patch
# Parent e7bdbc5ea8971599466becf01bff12b9fcb5df3e
Enable the seccomp-bpf sandbox on more architectures
upstream commit: b9c50614eba9d90939b2b119b6e1b7e03b462278 (7.3p1)
Author: Damien Miller <djm@mindrot.org>
Date: Fri Jul 8 13:59:13 2016 +1000
whitelist more architectures for seccomp-bpf
bz#2590 - testing and patch from Jakub Jelen
diff --git a/openssh-7.2p2/configure.ac b/openssh-7.2p2/configure.ac
--- a/openssh-7.2p2/configure.ac
+++ b/openssh-7.2p2/configure.ac
@@ -818,16 +818,40 @@ main() { if (NSVersionOfRunTimeLibrary("
seccomp_audit_arch=AUDIT_ARCH_I386
;;
arm*-*)
seccomp_audit_arch=AUDIT_ARCH_ARM
;;
aarch64*-*)
seccomp_audit_arch=AUDIT_ARCH_AARCH64
;;
+ s390x-*)
+ seccomp_audit_arch=AUDIT_ARCH_S390X
+ ;;
+ s390-*)
+ seccomp_audit_arch=AUDIT_ARCH_S390
+ ;;
+ powerpc64-*)
+ seccomp_audit_arch=AUDIT_ARCH_PPC64
+ ;;
+ powerpc64le-*)
+ seccomp_audit_arch=AUDIT_ARCH_PPC64LE
+ ;;
+ mips-*)
+ seccomp_audit_arch=AUDIT_ARCH_MIPS
+ ;;
+ mipsel-*)
+ seccomp_audit_arch=AUDIT_ARCH_MIPSEL
+ ;;
+ mips64-*)
+ seccomp_audit_arch=AUDIT_ARCH_MIPS64
+ ;;
+ mips64el-*)
+ seccomp_audit_arch=AUDIT_ARCH_MIPSEL64
+ ;;
esac
if test "x$seccomp_audit_arch" != "x" ; then
AC_MSG_RESULT(["$seccomp_audit_arch"])
AC_DEFINE_UNQUOTED([SECCOMP_AUDIT_ARCH], [$seccomp_audit_arch],
[Specify the system call convention in use])
else
AC_MSG_RESULT([architecture not supported])
fi

129
openssh-7.2p2-allow_DSS_by_default.patch
View File

@ -1,129 +0,0 @@
# HG changeset patch
# Parent d33bce122aa351a56ce457be35feda52171f9088
Enable DSS authentication by default to maintain compatibility with older
versions.
bsc#983784
diff --git a/openssh-7.2p2/myproposal.h b/openssh-7.2p2/myproposal.h
--- a/openssh-7.2p2/myproposal.h
+++ b/openssh-7.2p2/myproposal.h
@@ -94,21 +94,23 @@
#define KEX_CLIENT_KEX KEX_COMMON_KEX \
"diffie-hellman-group-exchange-sha1," \
"diffie-hellman-group14-sha1"
#define KEX_DEFAULT_PK_ALG \
HOSTKEY_ECDSA_CERT_METHODS \
"ssh-ed25519-cert-v01@openssh.com," \
"ssh-rsa-cert-v01@openssh.com," \
+ "ssh-dss-cert-v01@openssh.com," \
HOSTKEY_ECDSA_METHODS \
"ssh-ed25519," \
"rsa-sha2-512," \
"rsa-sha2-256," \
- "ssh-rsa"
+ "ssh-rsa," \
+ "ssh-dss"
/* the actual algorithms */
#define KEX_SERVER_ENCRYPT \
"chacha20-poly1305@openssh.com," \
"aes128-ctr,aes192-ctr,aes256-ctr" \
AESGCM_CIPHER_MODES
diff --git a/openssh-7.2p2/ssh_config.5 b/openssh-7.2p2/ssh_config.5
--- a/openssh-7.2p2/ssh_config.5
+++ b/openssh-7.2p2/ssh_config.5
@@ -887,19 +887,19 @@ Alternately if the specified value begin
character, then the specified key types will be appended to the default set
instead of replacing them.
The default for this option is:
.Bd -literal -offset 3n
ecdsa-sha2-nistp256-cert-v01@openssh.com,
ecdsa-sha2-nistp384-cert-v01@openssh.com,
ecdsa-sha2-nistp521-cert-v01@openssh.com,
ssh-ed25519-cert-v01@openssh.com,
-ssh-rsa-cert-v01@openssh.com,
+ssh-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,
ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
-ssh-ed25519,ssh-rsa
+ssh-ed25519,ssh-rsa,ssh-dss
.Ed
.Pp
If hostkeys are known for the destination host then this default is modified
to prefer their algorithms.
.Pp
The list of available key types may also be obtained using the
.Fl Q
option of
@@ -1325,19 +1325,19 @@ Alternately if the specified value begin
character, then the key types after it will be appended to the default
instead of replacing it.
The default for this option is:
.Bd -literal -offset 3n
ecdsa-sha2-nistp256-cert-v01@openssh.com,
ecdsa-sha2-nistp384-cert-v01@openssh.com,
ecdsa-sha2-nistp521-cert-v01@openssh.com,
ssh-ed25519-cert-v01@openssh.com,
-ssh-rsa-cert-v01@openssh.com,
+ssh-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,
ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
-ssh-ed25519,ssh-rsa
+ssh-ed25519,ssh-rsa,ssh-dss
.Ed
.Pp
The
.Fl Q
option of
.Xr ssh 1
may be used to list supported key types.
.It Cm PubkeyAuthentication
diff --git a/openssh-7.2p2/sshd_config.5 b/openssh-7.2p2/sshd_config.5
--- a/openssh-7.2p2/sshd_config.5
+++ b/openssh-7.2p2/sshd_config.5
@@ -651,19 +651,19 @@ Alternately if the specified value begin
character, then the specified key types will be appended to the default set
instead of replacing them.
The default for this option is:
.Bd -literal -offset 3n
ecdsa-sha2-nistp256-cert-v01@openssh.com,
ecdsa-sha2-nistp384-cert-v01@openssh.com,
ecdsa-sha2-nistp521-cert-v01@openssh.com,
ssh-ed25519-cert-v01@openssh.com,
-ssh-rsa-cert-v01@openssh.com,
+ssh-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,
ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
-ssh-ed25519,ssh-rsa
+ssh-ed25519,ssh-rsa,ssh-dss
.Ed
.Pp
The
.Fl Q
option of
.Xr ssh 1
may be used to list supported key types.
.It Cm HostbasedAuthentication
@@ -743,19 +743,19 @@ environment variable.
Specifies the host key algorithms
that the server offers.
The default for this option is:
.Bd -literal -offset 3n
ecdsa-sha2-nistp256-cert-v01@openssh.com,
ecdsa-sha2-nistp384-cert-v01@openssh.com,
ecdsa-sha2-nistp521-cert-v01@openssh.com,
ssh-ed25519-cert-v01@openssh.com,
-ssh-rsa-cert-v01@openssh.com,
+ssh-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,
ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
-ssh-ed25519,ssh-rsa
+ssh-ed25519,ssh-rsa,ssh-dss
.Ed
.Pp
The list of available key types may also be obtained using the
.Fl Q
option of
.Xr ssh 1
with an argument of
.Dq key .

95
openssh-7.2p2-allow_root_password_login.patch
View File

@ -1,95 +0,0 @@
# HG changeset patch
# Parent c43ae523939377778762e81743b77b3c75eb4bd1
Allow root login with password by default. While less secure than upstream
default of forbidding access to the root account with a password, we are
temporarily introducing this change to keep the default used in older OpenSSH
versions shipped with SLE.
diff --git a/openssh-7.2p2/servconf.c b/openssh-7.2p2/servconf.c
--- a/openssh-7.2p2/servconf.c
+++ b/openssh-7.2p2/servconf.c
@@ -233,17 +233,17 @@ fill_default_server_options(ServerOption
options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
if (options->server_key_bits == -1)
options->server_key_bits = 1024;
if (options->login_grace_time == -1)
options->login_grace_time = 120;
if (options->key_regeneration_time == -1)
options->key_regeneration_time = 3600;
if (options->permit_root_login == PERMIT_NOT_SET)
- options->permit_root_login = PERMIT_NO_PASSWD;
+ options->permit_root_login = PERMIT_YES;
if (options->ignore_rhosts == -1)
options->ignore_rhosts = 1;
if (options->ignore_user_known_hosts == -1)
options->ignore_user_known_hosts = 0;
if (options->print_motd == -1)
options->print_motd = 1;
if (options->print_lastlog == -1)
options->print_lastlog = 1;
diff --git a/openssh-7.2p2/sshd_config b/openssh-7.2p2/sshd_config
--- a/openssh-7.2p2/sshd_config
+++ b/openssh-7.2p2/sshd_config
@@ -36,17 +36,17 @@
# Logging
# obsoletes QuietMode and FascistLogging
#SyslogFacility AUTH
#LogLevel INFO
# Authentication:
#LoginGraceTime 2m
-#PermitRootLogin prohibit-password
+#PermitRootLogin yes
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10
#RSAAuthentication yes
#PubkeyAuthentication yes
# The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
diff --git a/openssh-7.2p2/sshd_config.0 b/openssh-7.2p2/sshd_config.0
--- a/openssh-7.2p2/sshd_config.0
+++ b/openssh-7.2p2/sshd_config.0
@@ -710,17 +710,17 @@ DESCRIPTION
restrictions and permit any forwarding requests. An argument of
M-bM-^@M-^\noneM-bM-^@M-^] can be used to prohibit all forwarding requests. By
default all port forwarding requests are permitted.
PermitRootLogin
Specifies whether root can log in using ssh(1). The argument
must be M-bM-^@M-^\yesM-bM-^@M-^], M-bM-^@M-^\prohibit-passwordM-bM-^@M-^], M-bM-^@M-^\without-passwordM-bM-^@M-^],
M-bM-^@M-^\forced-commands-onlyM-bM-^@M-^], or M-bM-^@M-^\noM-bM-^@M-^]. The default is
- M-bM-^@M-^\prohibit-passwordM-bM-^@M-^].
+ M-bM-^@M-^\yesM-bM-^@M-^].
If this option is set to M-bM-^@M-^\prohibit-passwordM-bM-^@M-^] or
M-bM-^@M-^\without-passwordM-bM-^@M-^], password and keyboard-interactive
authentication are disabled for root.
If this option is set to M-bM-^@M-^\forced-commands-onlyM-bM-^@M-^], root login with
public key authentication will be allowed, but only if the
command option has been specified (which may be useful for taking
diff --git a/openssh-7.2p2/sshd_config.5 b/openssh-7.2p2/sshd_config.5
--- a/openssh-7.2p2/sshd_config.5
+++ b/openssh-7.2p2/sshd_config.5
@@ -1213,17 +1213,17 @@ Specifies whether root can log in using
The argument must be
.Dq yes ,
.Dq prohibit-password ,
.Dq without-password ,
.Dq forced-commands-only ,
or
.Dq no .
The default is
-.Dq prohibit-password .
+.Dq yes .
.Pp
If this option is set to
.Dq prohibit-password
or
.Dq without-password ,
password and keyboard-interactive authentication are disabled for root.
.Pp
If this option is set to

3239
openssh-7.2p2-audit.patch
View File

File diff suppressed because it is too large Load Diff

28
openssh-7.2p2-audit_fixes.patch
View File

@ -1,28 +0,0 @@
# HG changeset patch
# Parent 51a3a8eab1493a799c5a9df95e8e757f872886d0
Various auditing fixes to be merged into the RH-originated patch.
diff --git a/openssh-7.2p2/packet.c b/openssh-7.2p2/packet.c
--- a/openssh-7.2p2/packet.c
+++ b/openssh-7.2p2/packet.c
@@ -375,16 +375,20 @@ ssh_packet_start_discard(struct ssh *ssh
int
ssh_packet_connection_is_on_socket(struct ssh *ssh)
{
struct session_state *state = ssh->state;
struct sockaddr_storage from, to;
socklen_t fromlen, tolen;
+ /* auditing might get here without valid connection structure when
+ * destroying sensitive data on exit and thus aborting disgracefully */
+ if (!ssh)
+ return 0;
/* filedescriptors in and out are the same, so it's a socket */
if (state->connection_in == state->connection_out)
return 1;
fromlen = sizeof(from);
memset(&from, 0, sizeof(from));
if (getpeername(state->connection_in, (struct sockaddr *)&from,
&fromlen) < 0)
return 0;

116
openssh-7.2p2-audit_seed_prng.patch
View File

@ -1,116 +0,0 @@
# HG changeset patch
# Parent e6ff441d171012183f7bd37cb7399473e8376acd
Audit PRNG re-seeding
diff --git a/openssh-7.2p2/audit-bsm.c b/openssh-7.2p2/audit-bsm.c
--- a/openssh-7.2p2/audit-bsm.c
+++ b/openssh-7.2p2/audit-bsm.c
@@ -504,9 +504,15 @@ audit_destroy_sensitive_data(const char
/* not implemented */
}
void
audit_generate_ephemeral_server_key(const char *fp)
{
/* not implemented */
}
+
+void
+audit_linux_prng_seed(long bytes, const char *rf)
+{
+ /* not implemented */
+}
#endif /* BSM */
diff --git a/openssh-7.2p2/audit-linux.c b/openssh-7.2p2/audit-linux.c
--- a/openssh-7.2p2/audit-linux.c
+++ b/openssh-7.2p2/audit-linux.c
@@ -402,9 +402,31 @@ audit_generate_ephemeral_server_key(cons
}
audit_ok = audit_log_user_message(audit_fd, AUDIT_CRYPTO_KEY_USER,
buf, NULL, 0, NULL, 1);
audit_close(audit_fd);
/* do not abort if the error is EPERM and sshd is run as non root user */
if ((audit_ok < 0) && ((audit_ok != -1) || (getuid() == 0)))
error("cannot write into audit");
}
+
+void
+audit_linux_prng_seed(long bytes, const char *rf)
+{
+ char buf[AUDIT_LOG_SIZE];
+ int audit_fd, audit_ok;
+
+ snprintf(buf, sizeof(buf), "op=prng_seed kind=server bytes=%li source=%s ", bytes, rf);
+ audit_fd = audit_open();
+ if (audit_fd < 0) {
+ if (errno != EINVAL && errno != EPROTONOSUPPORT &&
+ errno != EAFNOSUPPORT)
+ error("cannot open audit");
+ return;
+ }
+ audit_ok = audit_log_user_message(audit_fd, AUDIT_CRYPTO_PARAM_CHANGE_USER,
+ buf, NULL, 0, NULL, 1);
+ audit_close(audit_fd);
+ /* do not abort if the error is EPERM and sshd is run as non root user */
+ if ((audit_ok < 0) && ((audit_ok != -1) || (getuid() == 0)))
+ error("cannot write into audit");
+}
#endif /* USE_LINUX_AUDIT */
diff --git a/openssh-7.2p2/audit.c b/openssh-7.2p2/audit.c
--- a/openssh-7.2p2/audit.c
+++ b/openssh-7.2p2/audit.c
@@ -304,10 +304,16 @@ audit_destroy_sensitive_data(const char
/*
* This will be called on generation of the ephemeral server key
*/
void
audit_generate_ephemeral_server_key(const char *)
{
debug("audit create ephemeral server key euid %d fingerprint %s", geteuid(), fp);
}
+
+void
+audit_linux_prng_seed(long bytes, const char *rf)
+{
+ debug("audit PRNG seed euid %d bytes %li source %s", geteuid(), bytes, rf);
+}
# endif /* !defined CUSTOM_SSH_AUDIT_EVENTS */
#endif /* SSH_AUDIT_EVENTS */
diff --git a/openssh-7.2p2/audit.h b/openssh-7.2p2/audit.h
--- a/openssh-7.2p2/audit.h
+++ b/openssh-7.2p2/audit.h
@@ -69,10 +69,11 @@ void audit_key(int, int *, const Key *);
void audit_unsupported(int);
void audit_kex(int, char *, char *, char *, char *);
void audit_unsupported_body(int);
void audit_kex_body(int, char *, char *, char *, char *, pid_t, uid_t);
void audit_session_key_free(int ctos);
void audit_session_key_free_body(int ctos, pid_t, uid_t);
void audit_destroy_sensitive_data(const char *, pid_t, uid_t);
void audit_generate_ephemeral_server_key(const char *);
+void audit_linux_prng_seed(long, const char *);
#endif /* _SSH_AUDIT_H */
diff --git a/openssh-7.2p2/sshd.c b/openssh-7.2p2/sshd.c
--- a/openssh-7.2p2/sshd.c
+++ b/openssh-7.2p2/sshd.c
@@ -1421,16 +1421,19 @@ server_accept_loop(int *sock_in, int *so
if (maxfd < startup_p[0])
maxfd = startup_p[0];
startups++;
break;
}
if(!(--re_seeding_counter)) {
re_seeding_counter = RESEED_AFTER;
linux_seed();
+#ifdef SSH_AUDIT_EVENTS
+ audit_linux_prng_seed(rand_bytes, rand_file);
+#endif
}
/*
* Got connection. Fork a child to handle it, unless
* we are in debugging mode.
*/
if (debug_flag) {
/*

76
openssh-7.2p2-blocksigalrm.patch
View File

@ -1,76 +0,0 @@
# HG changeset patch
# Parent 0bfb5dd4b190b546a3e40a59483b2b2884a47c39
block SIGALRM while logging through syslog to prevent deadlocks
(through grace_alarm_handler())
bnc#57354
diff --git a/openssh-7.2p2/log.c b/openssh-7.2p2/log.c
--- a/openssh-7.2p2/log.c
+++ b/openssh-7.2p2/log.c
@@ -46,16 +46,17 @@
#include <syslog.h>
#include <unistd.h>
#include <errno.h>
#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) && !defined(BROKEN_STRNVIS)
# include <vis.h>
#endif
#include "log.h"
+#include <signal.h>
static LogLevel log_level = SYSLOG_LEVEL_INFO;
static int log_on_stderr = 1;
static int log_stderr_fd = STDERR_FILENO;
static int log_facility = LOG_AUTH;
static char *argv0;
static log_handler_fn *log_handler;
static void *log_handler_ctx;
@@ -383,16 +384,17 @@ do_log(LogLevel level, const char *fmt,
{
#if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT)
struct syslog_data sdata = SYSLOG_DATA_INIT;
#endif
char msgbuf[MSGBUFSIZ];
char fmtbuf[MSGBUFSIZ];
char *txt = NULL;
int pri = LOG_INFO;
+ sigset_t nset, oset;
int saved_errno = errno;
log_handler_fn *tmp_handler;
if (level > log_level)
return;
switch (level) {
case SYSLOG_LEVEL_FATAL:
@@ -441,20 +443,29 @@ do_log(LogLevel level, const char *fmt,
tmp_handler = log_handler;
log_handler = NULL;
tmp_handler(level, fmtbuf, log_handler_ctx);
log_handler = tmp_handler;
} else if (log_on_stderr) {
snprintf(msgbuf, sizeof msgbuf, "%s\r\n", fmtbuf);
(void)write(log_stderr_fd, msgbuf, strlen(msgbuf));
} else {
+ /* Prevent a race between the grace_alarm
+ * which writes a log message and terminates
+ * and main sshd code that leads to deadlock
+ * as syslog is not async safe.
+ */
+ sigemptyset(&nset);
+ sigaddset(&nset, SIGALRM);
+ sigprocmask(SIG_BLOCK, &nset, &oset);
#if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT)
openlog_r(argv0 ? argv0 : __progname, LOG_PID, log_facility, &sdata);
syslog_r(pri, &sdata, "%.500s", fmtbuf);
closelog_r(&sdata);
#else
openlog(argv0 ? argv0 : __progname, LOG_PID, log_facility);
syslog(pri, "%.500s", fmtbuf);
closelog();
#endif
+ sigprocmask(SIG_SETMASK, &oset, NULL);
}
errno = saved_errno;
}

300
openssh-7.2p2-cavstest-ctr.patch
View File

@ -1,300 +0,0 @@
# HG changeset patch
# Parent cb502e7e796ac9289a571167a97ad9ec91562efb
CAVS test for OpenSSH's own CTR encryption mode implementation
diff --git a/openssh-7.2p2/Makefile.in b/openssh-7.2p2/Makefile.in
--- a/openssh-7.2p2/Makefile.in
+++ b/openssh-7.2p2/Makefile.in
@@ -21,16 +21,17 @@ top_srcdir=@top_srcdir@
DESTDIR=
VPATH=@srcdir@
SSH_PROGRAM=@bindir@/ssh
ASKPASS_PROGRAM=$(libexecdir)/ssh-askpass
SFTP_SERVER=$(libexecdir)/sftp-server
SSH_KEYSIGN=$(libexecdir)/ssh-keysign
SSH_PKCS11_HELPER=$(libexecdir)/ssh-pkcs11-helper
+CAVSTEST_CTR=$(libexecdir)/cavstest-ctr
PRIVSEP_PATH=@PRIVSEP_PATH@
SSH_PRIVSEP_USER=@SSH_PRIVSEP_USER@
STRIP_OPT=@STRIP_OPT@
TEST_SHELL=@TEST_SHELL@
PATHS= -DSSHDIR=\"$(sysconfdir)\" \
-D_PATH_SSH_PROGRAM=\"$(SSH_PROGRAM)\" \
-D_PATH_SSH_ASKPASS_DEFAULT=\"$(ASKPASS_PROGRAM)\" \
@@ -59,16 +60,18 @@ SED=@SED@
ENT=@ENT@
XAUTH_PATH=@XAUTH_PATH@
LDFLAGS=-L. -Lopenbsd-compat/ @LDFLAGS@
EXEEXT=@EXEEXT@
MANFMT=@MANFMT@
TARGETS=ssh$(EXEEXT) sshd$(EXEEXT) ssh-add$(EXEEXT) ssh-keygen$(EXEEXT) ssh-keyscan${EXEEXT} ssh-keysign${EXEEXT} ssh-pkcs11-helper$(EXEEXT) ssh-agent$(EXEEXT) scp$(EXEEXT) sftp-server$(EXEEXT) sftp$(EXEEXT)
+TARGETS += cavstest-ctr$(EXEEXT)
+
LIBOPENSSH_OBJS=\
ssh_api.o \
ssherr.o \
sshbuf.o \
sshkey.o \
sshbuf-getput-basic.o \
sshbuf-misc.o \
sshbuf-getput-crypto.o \
@@ -190,16 +193,20 @@ ssh-keyscan$(EXEEXT): $(LIBCOMPAT) libss
$(LD) -o $@ ssh-keyscan.o $(LDFLAGS) -lssh -lopenbsd-compat -lssh $(LIBS)
sftp-server$(EXEEXT): $(LIBCOMPAT) libssh.a sftp.o sftp-common.o sftp-server.o sftp-server-main.o
$(LD) -o $@ sftp-server.o sftp-common.o sftp-server-main.o $(LDFLAGS) -lssh -lopenbsd-compat $(LIBS)
sftp$(EXEEXT): $(LIBCOMPAT) libssh.a sftp.o sftp-client.o sftp-common.o sftp-glob.o progressmeter.o
$(LD) -o $@ progressmeter.o sftp.o sftp-client.o sftp-common.o sftp-glob.o $(LDFLAGS) -lssh -lopenbsd-compat $(LIBS) $(LIBEDIT)
+# FIPS tests
+cavstest-ctr$(EXEEXT): $(LIBCOMPAT) libssh.a cavstest-ctr.o
+ $(LD) -o $@ cavstest-ctr.o $(LDFLAGS) -lssh -lopenbsd-compat -lssh $(LIBS)
+
# test driver for the loginrec code - not built by default
logintest: logintest.o $(LIBCOMPAT) libssh.a loginrec.o
$(LD) -o $@ logintest.o $(LDFLAGS) loginrec.o -lopenbsd-compat -lssh $(LIBS)
$(MANPAGES): $(MANPAGES_IN)
if test "$(MANTYPE)" = "cat"; then \
manpage=$(srcdir)/`echo $@ | sed 's/\.[1-9]\.out$$/\.0/'`; \
else \
@@ -310,16 +317,17 @@ install-files:
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-agent$(EXEEXT) $(DESTDIR)$(bindir)/ssh-agent$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-keygen$(EXEEXT) $(DESTDIR)$(bindir)/ssh-keygen$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-keyscan$(EXEEXT) $(DESTDIR)$(bindir)/ssh-keyscan$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) sshd$(EXEEXT) $(DESTDIR)$(sbindir)/sshd$(EXEEXT)
$(INSTALL) -m 4711 $(STRIP_OPT) ssh-keysign$(EXEEXT) $(DESTDIR)$(SSH_KEYSIGN)$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-pkcs11-helper$(EXEEXT) $(DESTDIR)$(SSH_PKCS11_HELPER)$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) sftp$(EXEEXT) $(DESTDIR)$(bindir)/sftp$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) sftp-server$(EXEEXT) $(DESTDIR)$(SFTP_SERVER)$(EXEEXT)
+ $(INSTALL) -m 0755 $(STRIP_OPT) cavstest-ctr$(EXEEXT) $(DESTDIR)$(libexecdir)/cavstest-ctr$(EXEEXT)
$(INSTALL) -m 644 ssh.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh.1
$(INSTALL) -m 644 scp.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/scp.1
$(INSTALL) -m 644 ssh-add.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh-add.1
$(INSTALL) -m 644 ssh-agent.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh-agent.1
$(INSTALL) -m 644 ssh-keygen.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh-keygen.1
$(INSTALL) -m 644 ssh-keyscan.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh-keyscan.1
$(INSTALL) -m 644 moduli.5.out $(DESTDIR)$(mandir)/$(mansubdir)5/moduli.5
$(INSTALL) -m 644 sshd_config.5.out $(DESTDIR)$(mandir)/$(mansubdir)5/sshd_config.5
diff --git a/openssh-7.2p2/cavstest-ctr.c b/openssh-7.2p2/cavstest-ctr.c
new file mode 100644
--- /dev/null
+++ b/openssh-7.2p2/cavstest-ctr.c
@@ -0,0 +1,212 @@
+/*
+ *
+ * invocation (all of the following are equal):
+ * ./ctr-cavstest --algo aes128-ctr --key 987212980144b6a632e864031f52dacc --mode encrypt --data a6deca405eef2e8e4609abf3c3ccf4a6
+ * ./ctr-cavstest --algo aes128-ctr --key 987212980144b6a632e864031f52dacc --mode encrypt --data a6deca405eef2e8e4609abf3c3ccf4a6 --iv 00000000000000000000000000000000
+ * echo -n a6deca405eef2e8e4609abf3c3ccf4a6 | ./ctr-cavstest --algo aes128-ctr --key 987212980144b6a632e864031f52dacc --mode encrypt
+ */
+
+#include "includes.h"
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "xmalloc.h"
+#include "log.h"
+#include "cipher.h"
+
+/* compatibility with old or broken OpenSSL versions */
+#include "openbsd-compat/openssl-compat.h"
+
+void
+usage(void)
+{
+ fprintf(stderr, "Usage: ctr-cavstest --algo <ssh-crypto-algorithm>\n"
+ " --key <hexadecimal-key> --mode <encrypt|decrypt>\n"
+ " [--iv <hexadecimal-iv>] --data <hexadecimal-data>\n\n"
+ "Hexadecimal output is printed to stdout.\n"
+ "Hexadecimal input data can be alternatively read from stdin.\n");
+ exit(1);
+}
+
+void *
+fromhex(char *hex, size_t * len)
+{
+ unsigned char *bin;
+ char *p;
+ size_t n = 0;
+ int shift = 4;
+ unsigned char out = 0;
+ unsigned char *optr;
+
+ bin = xmalloc(strlen(hex) / 2);
+ optr = bin;
+
+ for (p = hex; *p != '\0'; ++p) {
+ unsigned char c;
+
+ c = *p;
+ if (isspace(c))
+ continue;
+
+ if (c >= '0' && c <= '9') {
+ c = c - '0';
+ } else if (c >= 'A' && c <= 'F') {
+ c = c - 'A' + 10;
+ } else if (c >= 'a' && c <= 'f') {
+ c = c - 'a' + 10;
+ } else {
+ /* truncate on nonhex cipher */
+ break;
+ }
+
+ out |= c << shift;
+ shift = (shift + 4) % 8;
+
+ if (shift) {
+ *(optr++) = out;
+ out = 0;
+ ++n;
+ }
+ }
+
+ *len = n;
+ return bin;
+}
+
+#define READ_CHUNK 4096
+#define MAX_READ_SIZE 1024*1024*100
+char *
+read_stdin(void)
+{
+ char *buf;
+ size_t n, total = 0;
+
+ buf = xmalloc(READ_CHUNK);
+
+ do {
+ n = fread(buf + total, 1, READ_CHUNK, stdin);
+ if (n < READ_CHUNK) /* terminate on short read */
+ break;
+
+ total += n;
+ buf = xreallocarray(buf, total + READ_CHUNK, 1);
+ } while (total < MAX_READ_SIZE);
+ return buf;
+}
+
+int
+main(int argc, char *argv[])
+{
+
+ struct sshcipher *c;
+ struct sshcipher_ctx cc;
+ char *algo = "aes128-ctr";
+ char *hexkey = NULL;
+ char *hexiv = "00000000000000000000000000000000";
+ char *hexdata = NULL;
+ char *p;
+ int i;
+ int encrypt = 1;
+ void *key;
+ size_t keylen;
+ void *iv;
+ size_t ivlen;
+ void *data;
+ size_t datalen;
+ void *outdata;
+
+ for (i = 1; i < argc; ++i) {
+ if (strcmp(argv[i], "--algo") == 0) {
+ algo = argv[++i];
+ } else if (strcmp(argv[i], "--key") == 0) {
+ hexkey = argv[++i];
+ } else if (strcmp(argv[i], "--mode") == 0) {
+ ++i;
+ if (argv[i] == NULL) {
+ usage();
+ }
+ if (strncmp(argv[i], "enc", 3) == 0) {
+ encrypt = 1;
+ } else if (strncmp(argv[i], "dec", 3) == 0) {
+ encrypt = 0;
+ } else {
+ usage();
+ }
+ } else if (strcmp(argv[i], "--iv") == 0) {
+ hexiv = argv[++i];
+ } else if (strcmp(argv[i], "--data") == 0) {
+ hexdata = argv[++i];
+ }
+ }
+
+ if (hexkey == NULL || algo == NULL) {
+ usage();
+ }
+
+ SSLeay_add_all_algorithms();
+
+ c = cipher_by_name(algo);
+ if (c == NULL) {
+ fprintf(stderr, "Error: unknown algorithm\n");
+ return 2;
+ }
+
+ if (hexdata == NULL) {
+ hexdata = read_stdin();
+ } else {
+ hexdata = xstrdup(hexdata);
+ }
+
+ key = fromhex(hexkey, &keylen);
+
+ if (keylen != 16 && keylen != 24 && keylen == 32) {
+ fprintf(stderr, "Error: unsupported key length\n");
+ return 2;
+ }
+
+ iv = fromhex(hexiv, &ivlen);
+
+ if (ivlen != 16) {
+ fprintf(stderr, "Error: unsupported iv length\n");
+ return 2;
+ }
+
+ data = fromhex(hexdata, &datalen);
+
+ if (data == NULL || datalen == 0) {
+ fprintf(stderr, "Error: no data to encrypt/decrypt\n");
+ return 2;
+ }
+
+ cipher_init(&cc, c, key, keylen, iv, ivlen, encrypt);
+
+ free(key);
+ free(iv);
+
+ outdata = malloc(datalen);
+ if (outdata == NULL) {
+ fprintf(stderr, "Error: memory allocation failure\n");
+ return 2;
+ }
+
+ cipher_crypt(&cc, 0, outdata, data, datalen, 0, 0);
+
+ free(data);
+
+ cipher_cleanup(&cc);
+
+ for (p = outdata; datalen > 0; ++p, --datalen) {
+ printf("%02X", (unsigned char) *p);
+ }
+
+ free(outdata);
+
+ printf("\n");
+ return 0;
+}

469
openssh-7.2p2-cavstest-kdf.patch
View File

@ -1,469 +0,0 @@
# HG changeset patch
# Parent f9ffcfb88e5a9d611a61aee3571050dea67e363e
CAVS test for KDF implementation in OpenSSH
diff --git a/openssh-7.2p2/Makefile.in b/openssh-7.2p2/Makefile.in
--- a/openssh-7.2p2/Makefile.in
+++ b/openssh-7.2p2/Makefile.in
@@ -22,16 +22,17 @@ top_srcdir=@top_srcdir@
DESTDIR=
VPATH=@srcdir@
SSH_PROGRAM=@bindir@/ssh
ASKPASS_PROGRAM=$(libexecdir)/ssh-askpass
SFTP_SERVER=$(libexecdir)/sftp-server
SSH_KEYSIGN=$(libexecdir)/ssh-keysign
SSH_PKCS11_HELPER=$(libexecdir)/ssh-pkcs11-helper
CAVSTEST_CTR=$(libexecdir)/cavstest-ctr
+CAVSTEST_KDF=$(libexecdir)/cavstest-kdf
PRIVSEP_PATH=@PRIVSEP_PATH@
SSH_PRIVSEP_USER=@SSH_PRIVSEP_USER@
STRIP_OPT=@STRIP_OPT@
TEST_SHELL=@TEST_SHELL@
PATHS= -DSSHDIR=\"$(sysconfdir)\" \
-D_PATH_SSH_PROGRAM=\"$(SSH_PROGRAM)\" \
-D_PATH_SSH_ASKPASS_DEFAULT=\"$(ASKPASS_PROGRAM)\" \
@@ -60,17 +61,17 @@ SED=@SED@
ENT=@ENT@
XAUTH_PATH=@XAUTH_PATH@
LDFLAGS=-L. -Lopenbsd-compat/ @LDFLAGS@
EXEEXT=@EXEEXT@
MANFMT=@MANFMT@
TARGETS=ssh$(EXEEXT) sshd$(EXEEXT) ssh-add$(EXEEXT) ssh-keygen$(EXEEXT) ssh-keyscan${EXEEXT} ssh-keysign${EXEEXT} ssh-pkcs11-helper$(EXEEXT) ssh-agent$(EXEEXT) scp$(EXEEXT) sftp-server$(EXEEXT) sftp$(EXEEXT)
-TARGETS += cavstest-ctr$(EXEEXT)
+TARGETS += cavstest-ctr$(EXEEXT) cavstest-kdf$(EXEEXT)
LIBOPENSSH_OBJS=\
ssh_api.o \
ssherr.o \
sshbuf.o \
sshkey.o \
sshbuf-getput-basic.o \
sshbuf-misc.o \
@@ -197,16 +198,19 @@ sftp-server$(EXEEXT): $(LIBCOMPAT) libss
sftp$(EXEEXT): $(LIBCOMPAT) libssh.a sftp.o sftp-client.o sftp-common.o sftp-glob.o progressmeter.o
$(LD) -o $@ progressmeter.o sftp.o sftp-client.o sftp-common.o sftp-glob.o $(LDFLAGS) -lssh -lopenbsd-compat $(LIBS) $(LIBEDIT)
# FIPS tests
cavstest-ctr$(EXEEXT): $(LIBCOMPAT) libssh.a cavstest-ctr.o
$(LD) -o $@ cavstest-ctr.o $(LDFLAGS) -lssh -lopenbsd-compat -lssh $(LIBS)
+cavstest-kdf$(EXEEXT): $(LIBCOMPAT) libssh.a cavstest-kdf.o
+ $(LD) -o $@ cavstest-kdf.o $(LDFLAGS) -lssh -lopenbsd-compat -lssh $(LIBS)
+
# test driver for the loginrec code - not built by default
logintest: logintest.o $(LIBCOMPAT) libssh.a loginrec.o
$(LD) -o $@ logintest.o $(LDFLAGS) loginrec.o -lopenbsd-compat -lssh $(LIBS)
$(MANPAGES): $(MANPAGES_IN)
if test "$(MANTYPE)" = "cat"; then \
manpage=$(srcdir)/`echo $@ | sed 's/\.[1-9]\.out$$/\.0/'`; \
else \
@@ -318,16 +322,17 @@ install-files:
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-keygen$(EXEEXT) $(DESTDIR)$(bindir)/ssh-keygen$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-keyscan$(EXEEXT) $(DESTDIR)$(bindir)/ssh-keyscan$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) sshd$(EXEEXT) $(DESTDIR)$(sbindir)/sshd$(EXEEXT)
$(INSTALL) -m 4711 $(STRIP_OPT) ssh-keysign$(EXEEXT) $(DESTDIR)$(SSH_KEYSIGN)$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-pkcs11-helper$(EXEEXT) $(DESTDIR)$(SSH_PKCS11_HELPER)$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) sftp$(EXEEXT) $(DESTDIR)$(bindir)/sftp$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) sftp-server$(EXEEXT) $(DESTDIR)$(SFTP_SERVER)$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) cavstest-ctr$(EXEEXT) $(DESTDIR)$(libexecdir)/cavstest-ctr$(EXEEXT)
+ $(INSTALL) -m 0755 $(STRIP_OPT) cavstest-kdf$(EXEEXT) $(DESTDIR)$(libexecdir)/cavstest-kdf$(EXEEXT)
$(INSTALL) -m 644 ssh.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh.1
$(INSTALL) -m 644 scp.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/scp.1
$(INSTALL) -m 644 ssh-add.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh-add.1
$(INSTALL) -m 644 ssh-agent.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh-agent.1
$(INSTALL) -m 644 ssh-keygen.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh-keygen.1
$(INSTALL) -m 644 ssh-keyscan.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/ssh-keyscan.1
$(INSTALL) -m 644 moduli.5.out $(DESTDIR)$(mandir)/$(mansubdir)5/moduli.5
$(INSTALL) -m 644 sshd_config.5.out $(DESTDIR)$(mandir)/$(mansubdir)5/sshd_config.5
diff --git a/openssh-7.2p2/cavstest-kdf.c b/openssh-7.2p2/cavstest-kdf.c
new file mode 100644
--- /dev/null
+++ b/openssh-7.2p2/cavstest-kdf.c
@@ -0,0 +1,382 @@
+/*
+ * Copyright (C) 2015, Stephan Mueller <smueller@chronox.de>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, and the entire permission notice in its entirety,
+ * including the disclaimer of warranties.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * ALTERNATIVELY, this product may be distributed under the terms of
+ * the GNU General Public License, in which case the provisions of the GPL2
+ * are required INSTEAD OF the above restrictions. (This clause is
+ * necessary due to a potential bad interaction between the GPL and
+ * the restrictions contained in a BSD-style copyright.)
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
+ * WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ */
+
+#include "includes.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <string.h>
+
+#include <openssl/bn.h>
+
+#include "xmalloc.h"
+#include "buffer.h"
+#include "key.h"
+#include "cipher.h"
+#include "kex.h"
+#include "packet.h"
+
+static int bin_char(unsigned char hex)
+{
+ if (48 <= hex && 57 >= hex)
+ return (hex - 48);
+ if (65 <= hex && 70 >= hex)
+ return (hex - 55);
+ if (97 <= hex && 102 >= hex)
+ return (hex - 87);
+ return 0;
+}
+
+/*
+ * Convert hex representation into binary string
+ * @hex input buffer with hex representation
+ * @hexlen length of hex
+ * @bin output buffer with binary data
+ * @binlen length of already allocated bin buffer (should be at least
+ * half of hexlen -- if not, only a fraction of hexlen is converted)
+ */
+static void hex2bin(const char *hex, size_t hexlen,
+ unsigned char *bin, size_t binlen)
+{
+ size_t i = 0;
+ size_t chars = (binlen > (hexlen / 2)) ? (hexlen / 2) : binlen;
+
+ for (i = 0; i < chars; i++) {
+ bin[i] = bin_char(hex[(i*2)]) << 4;
+ bin[i] |= bin_char(hex[((i*2)+1)]);
+ }
+}
+
+/*
+ * Allocate sufficient space for binary representation of hex
+ * and convert hex into bin
+ *
+ * Caller must free bin
+ * @hex input buffer with hex representation
+ * @hexlen length of hex
+ * @bin return value holding the pointer to the newly allocated buffer
+ * @binlen return value holding the allocated size of bin
+ *
+ * return: 0 on success, !0 otherwise
+ */
+static int hex2bin_alloc(const char *hex, size_t hexlen,
+ unsigned char **bin, size_t *binlen)
+{
+ unsigned char *out = NULL;
+ size_t outlen = 0;
+
+ if (!hexlen)
+ return -EINVAL;
+
+ outlen = (hexlen + 1) / 2;
+
+ out = calloc(1, outlen);
+ if (!out)
+ return -errno;
+
+ hex2bin(hex, hexlen, out, outlen);
+ *bin = out;
+ *binlen = outlen;
+ return 0;
+}
+
+static char hex_char_map_l[] = { '0', '1', '2', '3', '4', '5', '6', '7',
+ '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
+static char hex_char_map_u[] = { '0', '1', '2', '3', '4', '5', '6', '7',
+ '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
+static char hex_char(unsigned int bin, int u)
+{
+ if (bin < sizeof(hex_char_map_l))
+ return (u) ? hex_char_map_u[bin] : hex_char_map_l[bin];
+ return 'X';
+}
+
+/*
+ * Convert binary string into hex representation
+ * @bin input buffer with binary data
+ * @binlen length of bin
+ * @hex output buffer to store hex data
+ * @hexlen length of already allocated hex buffer (should be at least
+ * twice binlen -- if not, only a fraction of binlen is converted)
+ * @u case of hex characters (0=>lower case, 1=>upper case)
+ */
+static void bin2hex(const unsigned char *bin, size_t binlen,
+ char *hex, size_t hexlen, int u)
+{
+ size_t i = 0;
+ size_t chars = (binlen > (hexlen / 2)) ? (hexlen / 2) : binlen;
+
+ for (i = 0; i < chars; i++) {
+ hex[(i*2)] = hex_char((bin[i] >> 4), u);
+ hex[((i*2)+1)] = hex_char((bin[i] & 0x0f), u);
+ }
+}
+
+struct kdf_cavs {
+ unsigned char *K;
+ size_t Klen;
+ unsigned char *H;
+ size_t Hlen;
+ unsigned char *session_id;
+ size_t session_id_len;
+
+ unsigned int iv_len;
+ unsigned int ek_len;
+ unsigned int ik_len;
+};
+
+static int sshkdf_cavs(struct kdf_cavs *test)
+{
+ int ret = 0;
+ struct kex kex;
+ struct ssh ssh;
+ BIGNUM *Kbn = NULL;
+ int mode = 0;
+ struct newkeys *keys_client;
+ struct newkeys *keys_server;
+
+#define HEXOUTLEN 500
+ char hex[HEXOUTLEN];
+
+ memset(&ssh, 0, sizeof(struct ssh));
+ memset(&kex, 0, sizeof(struct kex));
+ ssh.kex = &kex;
+
+ Kbn = BN_new();
+ BN_bin2bn(test->K, test->Klen, Kbn);
+ if (!Kbn) {
+ printf("cannot convert K into BIGNUM\n");
+ ret = 1;
+ goto out;
+ }
+
+ kex.session_id = test->session_id;
+ kex.session_id_len = test->session_id_len;
+
+ /* setup kex */
+
+ /* select the right hash based on struct ssh_digest digests */
+ switch (test->ik_len) {
+ case 20:
+ kex.hash_alg = 2;
+ break;
+ case 32:
+ kex.hash_alg = 3;
+ break;
+ case 48:
+ kex.hash_alg = 4;
+ break;
+ case 64:
+ kex.hash_alg = 5;
+ break;
+ default:
+ printf("Wrong hash type %u\n", test->ik_len);
+ ret = 1;
+ goto out;
+ }
+
+ /* implement choose_enc */
+ for (mode = 0; mode < 2; mode++) {
+ kex.newkeys[mode] = calloc(1, sizeof(struct newkeys));
+ if (!kex.newkeys[mode]) {
+ printf("allocation of newkeys failed\n");
+ ret = 1;
+ goto out;
+ }
+ kex.newkeys[mode]->enc.iv_len = test->iv_len;
+ kex.newkeys[mode]->enc.key_len = test->ek_len;
+ kex.newkeys[mode]->enc.block_size = (test->iv_len == 64) ? 8 : 16;
+ kex.newkeys[mode]->mac.key_len = test->ik_len;
+ }
+
+ /* implement kex_choose_conf */
+ kex.we_need = kex.newkeys[0]->enc.key_len;
+ if (kex.we_need < kex.newkeys[0]->enc.block_size)
+ kex.we_need = kex.newkeys[0]->enc.block_size;
+ if (kex.we_need < kex.newkeys[0]->enc.iv_len)
+ kex.we_need = kex.newkeys[0]->enc.iv_len;
+ if (kex.we_need < kex.newkeys[0]->mac.key_len)
+ kex.we_need = kex.newkeys[0]->mac.key_len;
+
+ /* MODE_OUT (1) -> server to client
+ * MODE_IN (0) -> client to server */
+ kex.server = 1;
+
+ /* do it */
+ kex_derive_keys_bn(&ssh, test->H, test->Hlen, Kbn);
+
+ keys_client = ssh.kex->newkeys[0];
+ keys_server = ssh.kex->newkeys[1];
+
+ /* get data */
+ memset(hex, 0, HEXOUTLEN);
+ bin2hex(keys_client->enc.iv, (size_t)keys_client->enc.iv_len,
+ hex, HEXOUTLEN, 0);
+ printf("Initial IV (client to server) = %s\n", hex);
+
+ memset(hex, 0, HEXOUTLEN);
+ bin2hex(keys_server->enc.iv, (size_t)keys_server->enc.iv_len,
+ hex, HEXOUTLEN, 0);
+ printf("Initial IV (server to client) = %s\n", hex);
+
+ memset(hex, 0, HEXOUTLEN);
+ bin2hex(keys_client->enc.key, (size_t)keys_client->enc.key_len,
+ hex, HEXOUTLEN, 0);
+ printf("Encryption key (client to server) = %s\n", hex);
+
+ memset(hex, 0, HEXOUTLEN);
+ bin2hex(keys_server->enc.key, (size_t)keys_server->enc.key_len,
+ hex, HEXOUTLEN, 0);
+ printf("Encryption key (server to client) = %s\n", hex);
+
+ memset(hex, 0, HEXOUTLEN);
+ bin2hex(keys_client->mac.key, (size_t)keys_client->mac.key_len,
+ hex, HEXOUTLEN, 0);
+ printf("Integrity key (client to server) = %s\n", hex);
+
+ memset(hex, 0, HEXOUTLEN);
+ bin2hex(keys_server->mac.key, (size_t)keys_server->mac.key_len,
+ hex, HEXOUTLEN, 0);
+ printf("Integrity key (server to client) = %s\n", hex);
+
+ free(keys_client);
+ free(keys_server);
+
+out:
+ if (Kbn)
+ BN_free(Kbn);
+ if (kex.newkeys[0])
+ free(kex.newkeys[0]);
+ if (kex.newkeys[1])
+ free(kex.newkeys[1]);
+ return ret;
+}
+
+static void usage(void)
+{
+ fprintf(stderr, "\nOpenSSH KDF CAVS Test\n\n");
+ fprintf(stderr, "Usage:\n");
+ fprintf(stderr, "\t-K\tShared secret string\n");
+ fprintf(stderr, "\t-H\tHash string\n");
+ fprintf(stderr, "\t-s\tSession ID string\n");
+ fprintf(stderr, "\t-i\tIV length to be generated\n");
+ fprintf(stderr, "\t-e\tEncryption key length to be generated\n");
+ fprintf(stderr, "\t-m\tMAC key length to be generated\n");
+}
+
+/*
+ * Test command example:
+ * ./ssh-cavs -K 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 -H d3ab91a850febb417a25d892ec48ed5952c7a5de -s d3ab91a850febb417a25d892ec48ed5952c7a5de -i 8 -e 24 -m 20
+ *
+ * Expected result for example:
+ * Initial IV (client to server) = 4bb320d1679dfd3a
+ * Encryption key (client to server) = 13048cc600b9d3cf9095aa6cf8e2ff9cf1c54ca0520c89ed
+ * Integrity key (client to server) = ecef63a092b0dcc585bdc757e01b2740af57d640
+ * Initial IV (server to client) = 43dea6fdf263a308
+ * Encryption key (server to client) = 1e483c5134e901aa11fc4e0a524e7ec7b75556148a222bb0
+ * Integrity key (server to client) = 7424b05f3c44a72b4ebd281fb71f9cbe7b64d479
+ */
+int main(int argc, char *argv[])
+{
+ struct kdf_cavs test;
+ int ret = 1;
+ int opt = 0;
+
+ memset(&test, 0, sizeof(struct kdf_cavs));
+ while((opt = getopt(argc, argv, "K:H:s:i:e:m:")) != -1)
+ {
+ size_t len = 0;
+ switch(opt)
+ {
+ /*
+ * CAVS K is MPINT
+ * we want a hex (i.e. the caller must ensure the
+ * following transformations already happened):
+ * 1. cut off first four bytes
+ * 2. if most significant bit of value is
+ * 1, prepend 0 byte
+ */
+ case 'K':
+ len = strlen(optarg);
+ ret = hex2bin_alloc(optarg, len,
+ &test.K, &test.Klen);
+ if (ret)
+ goto out;
+ break;
+ case 'H':
+ len = strlen(optarg);
+ ret = hex2bin_alloc(optarg, len,
+ &test.H, &test.Hlen);
+ if (ret)
+ goto out;
+ break;
+ case 's':
+ len = strlen(optarg);
+ ret = hex2bin_alloc(optarg, len,
+ &test.session_id,
+ &test.session_id_len);
+ if (ret)
+ goto out;
+ break;
+ case 'i':
+ test.iv_len = strtoul(optarg, NULL, 10);
+ break;
+ case 'e':
+ test.ek_len = strtoul(optarg, NULL, 10);
+ break;
+ case 'm':
+ test.ik_len = strtoul(optarg, NULL, 10);
+ break;
+ default:
+ usage();
+ goto out;
+ }
+ }
+
+ ret = sshkdf_cavs(&test);
+
+out:
+ if (test.session_id)
+ free(test.session_id);
+ if (test.K)
+ free(test.K);
+ if (test.H)
+ free(test.H);
+ return ret;
+
+}

64
openssh-7.2p2-disable_openssl_abi_check.patch
View File

@ -1,64 +0,0 @@
# HG changeset patch
# Parent 4821397c95e57962905e6d47554bef9e4ea57483
disable run-time check for OpenSSL ABI by version number as that is not a
reliable indicator of ABI changes and doesn't make much sense in a
distribution package
diff --git a/openssh-7.2p2/configure.ac b/openssh-7.2p2/configure.ac
--- a/openssh-7.2p2/configure.ac
+++ b/openssh-7.2p2/configure.ac
@@ -4663,16 +4663,29 @@ AC_ARG_WITH([bsd-auth],
if test "x$withval" != "xno" ; then
AC_DEFINE([BSD_AUTH], [1],
[Define if you have BSD auth support])
BSD_AUTH_MSG=yes
fi
]
)
+# Whether we are using distribution (Open)SSL, so no runtime checks are necessary
+DISTRO_SSL=no
+AC_ARG_WITH([distro-ssl],
+ [ --with-distro-ssl Disable runtime OpenSSL version checks (good for distributions)],
+ [
+ if test "x$withval" != "xno" ; then
+ AC_DEFINE([DISTRO_SSL], [1],
+ [Define if you are using distribution SSL library and don;t expect its API/ABI to change])
+ DISTRO_SSL=yes
+ fi
+ ]
+)
+
# Where to place sshd.pid
piddir=/var/run
# make sure the directory exists
if test ! -d $piddir ; then
piddir=`eval echo ${sysconfdir}`
case $piddir in
NONE/*) piddir=`echo $piddir | sed "s~NONE~$ac_default_prefix~"` ;;
esac
diff --git a/openssh-7.2p2/entropy.c b/openssh-7.2p2/entropy.c
--- a/openssh-7.2p2/entropy.c
+++ b/openssh-7.2p2/entropy.c
@@ -209,19 +209,21 @@ rexec_recv_rng_seed(Buffer *m)
#endif /* OPENSSL_PRNG_ONLY */
void
seed_rng(void)
{
#ifndef OPENSSL_PRNG_ONLY
unsigned char buf[RANDOM_SEED_SIZE];
#endif
+#ifndef DISTRO_SSL
if (!ssh_compatible_openssl(OPENSSL_VERSION_NUMBER, SSLeay()))
fatal("OpenSSL version mismatch. Built against %lx, you "
"have %lx", (u_long)OPENSSL_VERSION_NUMBER, SSLeay());
+#endif
#ifndef OPENSSL_PRNG_ONLY
if (RAND_status() == 1) {
debug3("RNG is ready, skipping seeding");
return;
}
if (seed_from_prngd(buf, sizeof(buf)) == -1)

1317
openssh-7.2p2-disable_preauth_compression.patch
View File

File diff suppressed because it is too large Load Diff

695
openssh-7.2p2-disable_short_DH_parameters.patch
View File

@ -1,695 +0,0 @@
# HG changeset patch
# Parent 7b5f436e0026923299fdd1994f8da8fd9948be7c
Raise minimal size of DH group parameters to 2048 bits like upstream did in
7.2. 1024b values are believed to be in breaking range for state adversaries
and the default moduli shipped with openssh have been around long enough to
make it more likely for them to be broken.
Also provide an option that allows the client to accept shorter (RFC4419
compliant) parameters.
CVE-2015-4000 (LOGJAM)
bsc#932483
diff --git a/openssh-7.2p2/dh.c b/openssh-7.2p2/dh.c
--- a/openssh-7.2p2/dh.c
+++ b/openssh-7.2p2/dh.c
@@ -37,16 +37,18 @@
#include <limits.h>
#include "dh.h"
#include "pathnames.h"
#include "log.h"
#include "misc.h"
#include "ssherr.h"
+int dh_grp_min = DH_GRP_MIN;
+
static int
parse_prime(int linenum, char *line, struct dhgroup *dhg)
{
char *cp, *arg;
char *strsize, *gen, *prime;
const char *errstr = NULL;
long long n;
diff --git a/openssh-7.2p2/dh.h b/openssh-7.2p2/dh.h
--- a/openssh-7.2p2/dh.h
+++ b/openssh-7.2p2/dh.h
@@ -43,16 +43,17 @@ int dh_gen_key(DH *, int);
int dh_pub_is_valid(DH *, BIGNUM *);
u_int dh_estimate(int);
/*
* Max value from RFC4419.
* Miniumum increased in light of DH precomputation attacks.
*/
+#define DH_GRP_MIN_RFC 1024
#define DH_GRP_MIN 2048
#define DH_GRP_MAX 8192
/*
* Values for "type" field of moduli(5)
* Specifies the internal structure of the prime modulus.
*/
#define MODULI_TYPE_UNKNOWN (0)
diff --git a/openssh-7.2p2/kexgexc.c b/openssh-7.2p2/kexgexc.c
--- a/openssh-7.2p2/kexgexc.c
+++ b/openssh-7.2p2/kexgexc.c
@@ -46,29 +46,32 @@
#include "packet.h"
#include "dh.h"
#include "ssh2.h"
#include "compat.h"
#include "dispatch.h"
#include "ssherr.h"
#include "sshbuf.h"
+/* import from dh.c */
+extern int dh_grp_min;
+
static int input_kex_dh_gex_group(int, u_int32_t, void *);
static int input_kex_dh_gex_reply(int, u_int32_t, void *);
int
kexgex_client(struct ssh *ssh)
{
struct kex *kex = ssh->kex;
int r;
u_int nbits;
nbits = dh_estimate(kex->dh_need * 8);
- kex->min = DH_GRP_MIN;
+ kex->min = dh_grp_min;
kex->max = DH_GRP_MAX;
kex->nbits = nbits;
if (datafellows & SSH_BUG_DHGEX_LARGE)
kex->nbits = MIN(kex->nbits, 4096);
/* New GEX request */
if ((r = sshpkt_start(ssh, SSH2_MSG_KEX_DH_GEX_REQUEST)) != 0 ||
(r = sshpkt_put_u32(ssh, kex->min)) != 0 ||
(r = sshpkt_put_u32(ssh, kex->nbits)) != 0 ||
@@ -104,16 +107,22 @@ input_kex_dh_gex_group(int type, u_int32
goto out;
}
if ((r = sshpkt_get_bignum2(ssh, p)) != 0 ||
(r = sshpkt_get_bignum2(ssh, g)) != 0 ||
(r = sshpkt_get_end(ssh)) != 0)
goto out;
if ((bits = BN_num_bits(p)) < 0 ||
(u_int)bits < kex->min || (u_int)bits > kex->max) {
+ if ((u_int)bits < kex->min && (u_int)bits >= DH_GRP_MIN_RFC)
+ logit("DH parameter offered by the server (%d bits) "
+ "is considered insecure. "
+ "You can lower the accepted the minimum "
+ "via the KexDHMin option.",
+ bits);
r = SSH_ERR_DH_GEX_OUT_OF_RANGE;
goto out;
}
if ((kex->dh = dh_new_group(g, p)) == NULL) {
r = SSH_ERR_ALLOC_FAIL;
goto out;
}
p = g = NULL; /* belong to kex->dh now */
diff --git a/openssh-7.2p2/kexgexs.c b/openssh-7.2p2/kexgexs.c
--- a/openssh-7.2p2/kexgexs.c
+++ b/openssh-7.2p2/kexgexs.c
@@ -49,16 +49,19 @@
#ifdef GSSAPI
#include "ssh-gss.h"
#endif
#include "monitor_wrap.h"
#include "dispatch.h"
#include "ssherr.h"
#include "sshbuf.h"
+/* import from dh.c */
+extern int dh_grp_min;
+
static int input_kex_dh_gex_request(int, u_int32_t, void *);
static int input_kex_dh_gex_init(int, u_int32_t, void *);
int
kexgex_server(struct ssh *ssh)
{
ssh_dispatch_set(ssh, SSH2_MSG_KEX_DH_GEX_REQUEST,
&input_kex_dh_gex_request);
@@ -78,23 +81,29 @@ input_kex_dh_gex_request(int type, u_int
if ((r = sshpkt_get_u32(ssh, &min)) != 0 ||
(r = sshpkt_get_u32(ssh, &nbits)) != 0 ||
(r = sshpkt_get_u32(ssh, &max)) != 0 ||
(r = sshpkt_get_end(ssh)) != 0)
goto out;
kex->nbits = nbits;
kex->min = min;
kex->max = max;
- min = MAX(DH_GRP_MIN, min);
+ min = MAX(dh_grp_min, min);
max = MIN(DH_GRP_MAX, max);
- nbits = MAX(DH_GRP_MIN, nbits);
+ nbits = MAX(dh_grp_min, nbits);
nbits = MIN(DH_GRP_MAX, nbits);
if (kex->max < kex->min || kex->nbits < kex->min ||
kex->max < kex->nbits) {
+ if (kex->nbits < kex->min && kex->nbits >= DH_GRP_MIN_RFC)
+ logit("DH parameter requested by the client (%d bits) "
+ "is considered insecure. "
+ "You can lower the accepted minimum "
+ "via the KexDHMin option.",
+ kex->nbits);
r = SSH_ERR_DH_GEX_OUT_OF_RANGE;
goto out;
}
/* Contact privileged parent */
kex->dh = PRIVSEP(choose_dh(min, nbits, max));
if (kex->dh == NULL) {
sshpkt_disconnect(ssh, "no matching DH grp found");
diff --git a/openssh-7.2p2/readconf.c b/openssh-7.2p2/readconf.c
--- a/openssh-7.2p2/readconf.c
+++ b/openssh-7.2p2/readconf.c
@@ -56,16 +56,17 @@
#include "misc.h"
#include "readconf.h"
#include "match.h"
#include "kex.h"
#include "mac.h"
#include "uidswap.h"
#include "myproposal.h"
#include "digest.h"
+#include "dh.h"
/* Format of the configuration file:
# Configuration data is parsed as follows:
# 1. command line options
# 2. user-specific file
# 3. system-wide file
# Any configuration value is only changed the first time it is set.
@@ -148,17 +149,18 @@ typedef enum {
oClearAllForwardings, oNoHostAuthenticationForLocalhost,
oEnableSSHKeysign, oRekeyLimit, oVerifyHostKeyDNS, oConnectTimeout,
oAddressFamily, oGssAuthentication, oGssDelegateCreds,
oServerAliveInterval, oServerAliveCountMax, oIdentitiesOnly,
oSendEnv, oControlPath, oControlMaster, oControlPersist,
oHashKnownHosts,
oTunnel, oTunnelDevice, oLocalCommand, oPermitLocalCommand,
oVisualHostKey,
- oKexAlgorithms, oIPQoS, oRequestTTY, oIgnoreUnknown, oProxyUseFdpass,
+ oKexAlgorithms, oKexDHMin,
+ oIPQoS, oRequestTTY, oIgnoreUnknown, oProxyUseFdpass,
oCanonicalDomains, oCanonicalizeHostname, oCanonicalizeMaxDots,
oCanonicalizeFallbackLocal, oCanonicalizePermittedCNAMEs,
oStreamLocalBindMask, oStreamLocalBindUnlink, oRevokedHostKeys,
oFingerprintHash, oUpdateHostkeys, oHostbasedKeyTypes,
oPubkeyAcceptedKeyTypes,
oIgnoredUnknownOption, oDeprecated, oUnsupported
} OpCodes;
@@ -260,16 +262,17 @@ static struct {
{ "hashknownhosts", oHashKnownHosts },
{ "tunnel", oTunnel },
{ "tunneldevice", oTunnelDevice },
{ "localcommand", oLocalCommand },
{ "permitlocalcommand", oPermitLocalCommand },
{ "visualhostkey", oVisualHostKey },
{ "useroaming", oDeprecated },
{ "kexalgorithms", oKexAlgorithms },
+ { "kexdhmin", oKexDHMin },
{ "ipqos", oIPQoS },
{ "requesttty", oRequestTTY },
{ "proxyusefdpass", oProxyUseFdpass },
{ "canonicaldomains", oCanonicalDomains },
{ "canonicalizefallbacklocal", oCanonicalizeFallbackLocal },
{ "canonicalizehostname", oCanonicalizeHostname },
{ "canonicalizemaxdots", oCanonicalizeMaxDots },
{ "canonicalizepermittedcnames", oCanonicalizePermittedCNAMEs },
@@ -280,16 +283,19 @@ static struct {
{ "updatehostkeys", oUpdateHostkeys },
{ "hostbasedkeytypes", oHostbasedKeyTypes },
{ "pubkeyacceptedkeytypes", oPubkeyAcceptedKeyTypes },
{ "ignoreunknown", oIgnoreUnknown },
{ NULL, oBadOption }
};
+/* import from dh.c */
+extern int dh_grp_min;
+
/*
* Adds a local TCP/IP port forward to options. Never returns if there is an
* error.
*/
void
add_local_forward(Options *options, const struct Forward *newfwd)
{
@@ -1157,16 +1163,20 @@ parse_int:
filename, linenum);
if (!kex_names_valid(*arg == '+' ? arg + 1 : arg))
fatal("%.200s line %d: Bad SSH2 KexAlgorithms '%s'.",
filename, linenum, arg ? arg : "<NONE>");
if (*activep && options->kex_algorithms == NULL)
options->kex_algorithms = xstrdup(arg);
break;
+ case oKexDHMin:
+ intptr = &options->kex_dhmin;
+ goto parse_int;
+
case oHostKeyAlgorithms:
charptr = &options->hostkeyalgorithms;
parse_keytypes:
arg = strdelim(&s);
if (!arg || *arg == '\0')
fatal("%.200s line %d: Missing argument.",
filename, linenum);
if (!sshkey_names_valid2(*arg == '+' ? arg + 1 : arg, 1))
@@ -1664,16 +1674,17 @@ initialize_options(Options * options)
options->address_family = -1;
options->connection_attempts = -1;
options->connection_timeout = -1;
options->number_of_password_prompts = -1;
options->cipher = -1;
options->ciphers = NULL;
options->macs = NULL;
options->kex_algorithms = NULL;
+ options->kex_dhmin = -1;
options->hostkeyalgorithms = NULL;
options->protocol = SSH_PROTO_UNKNOWN;
options->num_identity_files = 0;
options->num_certificate_files = 0;
options->hostname = NULL;
options->host_key_alias = NULL;
options->proxy_command = NULL;
options->user = NULL;
@@ -1805,16 +1816,23 @@ fill_default_options(Options * options)
options->address_family = AF_UNSPEC;
if (options->connection_attempts == -1)
options->connection_attempts = 1;
if (options->number_of_password_prompts == -1)
options->number_of_password_prompts = 3;
/* Selected in ssh_login(). */
if (options->cipher == -1)
options->cipher = SSH_CIPHER_NOT_SET;
+ if (options->kex_dhmin == -1)
+ options->kex_dhmin = DH_GRP_MIN_RFC;
+ else {
+ options->kex_dhmin = MAX(options->kex_dhmin, DH_GRP_MIN_RFC);
+ options->kex_dhmin = MIN(options->kex_dhmin, DH_GRP_MAX);
+ }
+ dh_grp_min = options->kex_dhmin;
/* options->hostkeyalgorithms, default set in myproposals.h */
if (options->protocol == SSH_PROTO_UNKNOWN)
options->protocol = SSH_PROTO_2;
if (options->add_keys_to_agent == -1)
options->add_keys_to_agent = 0;
if (options->num_identity_files == 0) {
if (options->protocol & SSH_PROTO_1) {
add_identity_file(options, "~/",
diff --git a/openssh-7.2p2/readconf.h b/openssh-7.2p2/readconf.h
--- a/openssh-7.2p2/readconf.h
+++ b/openssh-7.2p2/readconf.h
@@ -69,16 +69,17 @@ typedef struct {
* aborting connection attempt */
int number_of_password_prompts; /* Max number of password
* prompts. */
int cipher; /* Cipher to use. */
char *ciphers; /* SSH2 ciphers in order of preference. */
char *macs; /* SSH2 macs in order of preference. */
char *hostkeyalgorithms; /* SSH2 server key types in order of preference. */
char *kex_algorithms; /* SSH2 kex methods in order of preference. */
+ int kex_dhmin; /* minimum bit length of the DH group parameter */
int protocol; /* Protocol in order of preference. */
char *hostname; /* Real host to connect. */
char *host_key_alias; /* hostname alias for .ssh/known_hosts */
char *proxy_command; /* Proxy command for connecting the host. */
char *user; /* User to log in as. */
int escape_char; /* Escape character; -2 = none */
u_int num_system_hostfiles; /* Paths for /etc/ssh/ssh_known_hosts */
diff --git a/openssh-7.2p2/servconf.c b/openssh-7.2p2/servconf.c
--- a/openssh-7.2p2/servconf.c
+++ b/openssh-7.2p2/servconf.c
@@ -52,16 +52,20 @@
#include "channels.h"
#include "groupaccess.h"
#include "canohost.h"
#include "packet.h"
#include "hostfile.h"
#include "auth.h"
#include "myproposal.h"
#include "digest.h"
+#include "dh.h"
+
+/* import from dh.c */
+extern int dh_grp_min;
static void add_listen_addr(ServerOptions *, char *, int);
static void add_one_listen_addr(ServerOptions *, char *, int);
/* Use of privilege separation or not */
extern int use_privsep;
extern Buffer cfg;
@@ -134,16 +138,17 @@ initialize_server_options(ServerOptions
options->allow_agent_forwarding = -1;
options->num_allow_users = 0;
options->num_deny_users = 0;
options->num_allow_groups = 0;
options->num_deny_groups = 0;
options->ciphers = NULL;
options->macs = NULL;
options->kex_algorithms = NULL;
+ options->kex_dhmin = -1;
options->protocol = SSH_PROTO_UNKNOWN;
options->fwd_opts.gateway_ports = -1;
options->fwd_opts.streamlocal_bind_mask = (mode_t)-1;
options->fwd_opts.streamlocal_bind_unlink = -1;
options->num_subsystems = 0;
options->max_startups_begin = -1;
options->max_startups_rate = -1;
options->max_startups = -1;
@@ -199,16 +204,23 @@ fill_default_server_options(ServerOption
int i;
/* Portable-specific options */
if (options->use_pam == -1)
options->use_pam = 0;
if (options->use_pam_check_locks == -1)
options->use_pam_check_locks = 0;
+ if (options->kex_dhmin == -1)
+ options->kex_dhmin = DH_GRP_MIN_RFC;
+ else {
+ options->kex_dhmin = MAX(options->kex_dhmin, DH_GRP_MIN_RFC);
+ options->kex_dhmin = MIN(options->kex_dhmin, DH_GRP_MAX);
+ }
+ dh_grp_min = options->kex_dhmin;
/* Standard Options */
if (options->protocol == SSH_PROTO_UNKNOWN)
options->protocol = SSH_PROTO_2;
if (options->num_host_key_files == 0) {
/* fill default hostkeys for protocols */
if (options->protocol & SSH_PROTO_1)
options->host_key_files[options->num_host_key_files++] =
_PATH_HOST_KEY_FILE;
@@ -423,17 +435,18 @@ typedef enum {
sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
sGssAuthentication, sGssCleanupCreds, sGssStrictAcceptor,
sAcceptEnv, sPermitTunnel,
sMatch, sPermitOpen, sForceCommand, sChrootDirectory,
sUsePrivilegeSeparation, sAllowAgentForwarding,
sHostCertificate,
sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
sAuthorizedPrincipalsCommand, sAuthorizedPrincipalsCommandUser,
- sKexAlgorithms, sIPQoS, sVersionAddendum,
+ sKexAlgorithms, sKexDHMin,
+ sIPQoS, sVersionAddendum,
sAuthorizedKeysCommand, sAuthorizedKeysCommandUser,
sAuthenticationMethods, sHostKeyAgent, sPermitUserRC,
sStreamLocalBindMask, sStreamLocalBindUnlink,
sAllowStreamLocalForwarding, sFingerprintHash,
sDeprecated, sUnsupported
} ServerOpCodes;
#define SSHCFG_GLOBAL 0x01 /* allowed in main section of sshd_config */
@@ -561,16 +574,17 @@ static struct {
{ "permitopen", sPermitOpen, SSHCFG_ALL },
{ "forcecommand", sForceCommand, SSHCFG_ALL },
{ "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
{ "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
{ "revokedkeys", sRevokedKeys, SSHCFG_ALL },
{ "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
{ "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
{ "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
+ { "kexdhmin", sKexDHMin },
{ "ipqos", sIPQoS, SSHCFG_ALL },
{ "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL },
{ "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL },
{ "authorizedprincipalscommand", sAuthorizedPrincipalsCommand, SSHCFG_ALL },
{ "authorizedprincipalscommanduser", sAuthorizedPrincipalsCommandUser, SSHCFG_ALL },
{ "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL },
{ "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL },
{ "streamlocalbindmask", sStreamLocalBindMask, SSHCFG_ALL },
@@ -1481,16 +1495,20 @@ process_server_config_line(ServerOptions
filename, linenum);
if (!kex_names_valid(*arg == '+' ? arg + 1 : arg))
fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
filename, linenum, arg ? arg : "<NONE>");
if (options->kex_algorithms == NULL)
options->kex_algorithms = xstrdup(arg);
break;
+ case sKexDHMin:
+ intptr = &options->kex_dhmin;
+ goto parse_int;
+
case sProtocol:
intptr = &options->protocol;
arg = strdelim(&cp);
if (!arg || *arg == '\0')
fatal("%s line %d: Missing argument.", filename, linenum);
value = proto_spec(arg);
if (value == SSH_PROTO_UNKNOWN)
fatal("%s line %d: Bad protocol spec '%s'.",
@@ -2247,16 +2265,17 @@ dump_config(ServerOptions *o)
dump_cfg_int(sLoginGraceTime, o->login_grace_time);
dump_cfg_int(sKeyRegenerationTime, o->key_regeneration_time);
dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
dump_cfg_int(sMaxAuthTries, o->max_authtries);
dump_cfg_int(sMaxSessions, o->max_sessions);
dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
+ dump_cfg_int(sKexDHMin, o->kex_dhmin);
/* formatted integer arguments */
dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
dump_cfg_fmtint(sRhostsRSAAuthentication, o->rhosts_rsa_authentication);
dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
diff --git a/openssh-7.2p2/servconf.h b/openssh-7.2p2/servconf.h
--- a/openssh-7.2p2/servconf.h
+++ b/openssh-7.2p2/servconf.h
@@ -88,16 +88,17 @@ typedef struct {
int permit_user_rc; /* If false, deny ~/.ssh/rc execution */
int strict_modes; /* If true, require string home dir modes. */
int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */
int ip_qos_interactive; /* IP ToS/DSCP/class for interactive */
int ip_qos_bulk; /* IP ToS/DSCP/class for bulk traffic */
char *ciphers; /* Supported SSH2 ciphers. */
char *macs; /* Supported SSH2 macs. */
char *kex_algorithms; /* SSH2 kex methods in order of preference. */
+ int kex_dhmin; /* minimum bit length of the DH group parameter */
int protocol; /* Supported protocol versions. */
struct ForwardOptions fwd_opts; /* forwarding options */
SyslogFacility log_facility; /* Facility for system logging. */
LogLevel log_level; /* Level for system logging. */
int rhosts_rsa_authentication; /* If true, permit rhosts RSA
* authentication. */
int hostbased_authentication; /* If true, permit ssh2 hostbased auth */
int hostbased_uses_name_from_packet_only; /* experimental */
diff --git a/openssh-7.2p2/ssh_config b/openssh-7.2p2/ssh_config
--- a/openssh-7.2p2/ssh_config
+++ b/openssh-7.2p2/ssh_config
@@ -12,16 +12,21 @@
# Any configuration value is only changed the first time it is set.
# Thus, host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.
# Site-wide defaults for some commonly used options. For a comprehensive
# list of available options, their meanings and defaults, please see the
# ssh_config(5) man page.
+# Minimum accepted size of the DH parameter p. By default this is set to 1024
+# to maintain compatibility with RFC4419, but should be set higher.
+# Upstream default is identical to setting this to 2048.
+#KexDHMin 1024
+
Host *
# ForwardAgent no
# ForwardX11 no
# If you do not trust your remote host (or its administrator), you
# should not forward X11 connections to your local X11-display for
# security reasons: Someone stealing the authentification data on the
# remote side (the "spoofed" X-server by the remote sshd) can read your
diff --git a/openssh-7.2p2/ssh_config.0 b/openssh-7.2p2/ssh_config.0
--- a/openssh-7.2p2/ssh_config.0
+++ b/openssh-7.2p2/ssh_config.0
@@ -606,16 +606,33 @@ DESCRIPTION
ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,
diffie-hellman-group-exchange-sha256,
diffie-hellman-group-exchange-sha1,
diffie-hellman-group14-sha1
The list of available key exchange algorithms may also be
obtained using the -Q option of ssh(1) with an argument of M-bM-^@M-^\kexM-bM-^@M-^].
+ KexDHMin
+ Specifies the minimum accepted bit length of the DH group
+ parameter p.
+
+ As per RFC4419, this is 1024 bits, however this has increasingly
+ been seen as insecure, which prompted the change to 2048 bits.
+ Setting this option allows the client to accept parameters shorter
+ than the current minimum, down to the RFC specified 1024 bits.
+ Using this option may be needed when connecting to servers that
+ only know short DH group parameters.
+
+ Note, that while by default this option is set to 1024 to maintain
+ maximum backward compatibility, using it can severly impact
+ security and thus should be viewed as a temporary fix of last
+ resort and all efforts should be made to fix the (broken)
+ counterparty.
+
LocalCommand
Specifies a command to execute on the local machine after
successfully connecting to the server. The command string
extends to the end of the line, and is executed with the user's
shell. The following escape character substitutions will be
performed: M-bM-^@M-^X%dM-bM-^@M-^Y (local user's home directory), M-bM-^@M-^X%hM-bM-^@M-^Y (remote host
name), M-bM-^@M-^X%lM-bM-^@M-^Y (local host name), M-bM-^@M-^X%nM-bM-^@M-^Y (host name as provided on the
command line), M-bM-^@M-^X%pM-bM-^@M-^Y (remote port), M-bM-^@M-^X%rM-bM-^@M-^Y (remote user name) or
diff --git a/openssh-7.2p2/ssh_config.5 b/openssh-7.2p2/ssh_config.5
--- a/openssh-7.2p2/ssh_config.5
+++ b/openssh-7.2p2/ssh_config.5
@@ -1092,16 +1092,32 @@ diffie-hellman-group14-sha1
.Ed
.Pp
The list of available key exchange algorithms may also be obtained using the
.Fl Q
option of
.Xr ssh 1
with an argument of
.Dq kex .
+.It Cm KexDHMin
+Specifies the minimum accepted bit length of the DH group
+parameter p.
+.Pp
+As per RFC4419, this is 1024 bits, however this has increasingly
+been seen as insecure, which prompted the change to 2048 bits.
+Setting this option allows the client to accept parameters shorter
+than the current minimum, down to the RFC specified 1024 bits.
+Using this option may be needed when connecting to servers that
+only know short DH group parameters.
+.Pp
+Note, that while by default this option is set to 1024 to maintain
+maximum backward compatibility, using it can severly impact
+security and thus should be viewed as a temporary fix of last
+resort and all efforts should be made to fix the (broken)
+counterparty.
.It Cm LocalCommand
Specifies a command to execute on the local machine after successfully
connecting to the server.
The command string extends to the end of the line, and is executed with
the user's shell.
The following escape character substitutions will be performed:
.Ql %d
(local user's home directory),
diff --git a/openssh-7.2p2/sshd_config b/openssh-7.2p2/sshd_config
--- a/openssh-7.2p2/sshd_config
+++ b/openssh-7.2p2/sshd_config
@@ -21,16 +21,21 @@
# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_host_key
# HostKeys for protocol version 2
#HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key
#HostKey /etc/ssh/ssh_host_ecdsa_key
#HostKey /etc/ssh/ssh_host_ed25519_key
+# Minimum accepted size of the DH parameter p. By default this is set to 1024
+# to maintain compatibility with RFC4419, but should be set higher.
+# Upstream default is identical to setting this to 2048.
+#KexDHMin 1024
+
# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 1h
#ServerKeyBits 1024
# Ciphers and keying
#RekeyLimit default none
# Logging
diff --git a/openssh-7.2p2/sshd_config.0 b/openssh-7.2p2/sshd_config.0
--- a/openssh-7.2p2/sshd_config.0
+++ b/openssh-7.2p2/sshd_config.0
@@ -539,16 +539,33 @@ DESCRIPTION
curve25519-sha256@libssh.org,
ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,
diffie-hellman-group-exchange-sha256,
diffie-hellman-group14-sha1
The list of available key exchange algorithms may also be
obtained using the -Q option of ssh(1) with an argument of M-bM-^@M-^\kexM-bM-^@M-^].
+ KexDHMin
+ Specifies the minimum accepted bit length of the DH group
+ parameter p.
+
+ As per RFC4419, this is 1024 bits, however this has increasingly
+ been seen as insecure, which prompted the change to 2048 bits.
+ Setting this option allows the server to accept parameters shorter
+ than the current minimum, down to the RFC specified 1024 bits.
+ Using this option may be needed when some of the connectiong
+ clients only know short DH group parameters.
+
+ Note, that while by default this option is set to 1024 to maintain
+ maximum backward compatibility, using it can severly impact
+ security and thus should be viewed as a temporary fix of last
+ resort and all efforts should be made to fix the (broken)
+ counterparty.
+
KeyRegenerationInterval
In protocol version 1, the ephemeral server key is automatically
regenerated after this many seconds (if it has been used). The
purpose of regeneration is to prevent decrypting captured
sessions by later breaking into the machine and stealing the
keys. The key is never stored anywhere. If the value is 0, the
key is never regenerated. The default is 3600 (seconds).
diff --git a/openssh-7.2p2/sshd_config.5 b/openssh-7.2p2/sshd_config.5
--- a/openssh-7.2p2/sshd_config.5
+++ b/openssh-7.2p2/sshd_config.5
@@ -895,16 +895,32 @@ diffie-hellman-group14-sha1
.Ed
.Pp
The list of available key exchange algorithms may also be obtained using the
.Fl Q
option of
.Xr ssh 1
with an argument of
.Dq kex .
+.It Cm KexDHMin
+Specifies the minimum accepted bit length of the DH group
+parameter p.
+.Pp
+As per RFC4419, this is 1024 bits, however this has increasingly
+been seen as insecure, which prompted the change to 2048 bits.
+Setting this option allows the server to accept parameters shorter
+than the current minimum, down to the RFC specified 1024 bits.
+Using this option may be needed when some of the connectiong
+clients only know short DH group parameters.
+.Pp
+Note, that while by default this option is set to 1024 to maintain
+maximum backward compatibility, using it can severly impact
+security and thus should be viewed as a temporary fix of last
+resort and all efforts should be made to fix the (broken)
+counterparty.
.It Cm KeyRegenerationInterval
In protocol version 1, the ephemeral server key is automatically regenerated
after this many seconds (if it has been used).
The purpose of regeneration is to prevent
decrypting captured sessions by later breaking into the machine and
stealing the keys.
The key is never stored anywhere.
If the value is 0, the key is never regenerated.

29
openssh-7.2p2-dont_use_pthreads_in_PAM.patch
View File

@ -1,29 +0,0 @@
# HG changeset patch
# Parent e4886597a8984ae1594b6866fe1b232370b23529
# posix threads are generally not supported nor safe
# (see upstream log from 2005-05-24)
# --used to be called '-pam-fix3'
diff --git a/openssh-7.2p2/auth-pam.c b/openssh-7.2p2/auth-pam.c
--- a/openssh-7.2p2/auth-pam.c
+++ b/openssh-7.2p2/auth-pam.c
@@ -782,17 +782,19 @@ sshpam_query(void *ctx, char **name, cha
}
if (type == PAM_SUCCESS) {
if (!sshpam_authctxt->valid ||
(sshpam_authctxt->pw->pw_uid == 0 &&
options.permit_root_login != PERMIT_YES))
fatal("Internal error: PAM auth "
"succeeded when it should have "
"failed");
+#ifndef UNSUPPORTED_POSIX_THREADS_HACK
import_environments(&buffer);
+#endif
*num = 0;
**echo_on = 0;
ctxt->pam_done = 1;
free(msg);
return (0);
}
error("PAM: %s for %s%.100s from %.100s", msg,
sshpam_authctxt->valid ? "" : "illegal user ",

87
openssh-7.2p2-eal3.patch
View File

@ -1,87 +0,0 @@
# HG changeset patch
# Parent f19426f2fa9c634474e635bf33b86acea0518f6d
fix paths and references in sshd man pages
diff --git a/openssh-7.2p2/sshd.8 b/openssh-7.2p2/sshd.8
--- a/openssh-7.2p2/sshd.8
+++ b/openssh-7.2p2/sshd.8
@@ -901,17 +901,17 @@ See
If this file exists,
.Nm
refuses to let anyone except root log in.
The contents of the file
are displayed to anyone trying to log in, and non-root connections are
refused.
The file should be world-readable.
.Pp
-.It Pa /etc/shosts.equiv
+.It Pa /etc/ssh/shosts.equiv
This file is used in exactly the same way as
.Pa hosts.equiv ,
but allows host-based authentication without permitting login with
rlogin/rsh.
.Pp
.It Pa /etc/ssh/ssh_host_key
.It Pa /etc/ssh/ssh_host_dsa_key
.It Pa /etc/ssh/ssh_host_ecdsa_key
@@ -981,17 +981,17 @@ The content of this file is not sensitiv
.Xr scp 1 ,
.Xr sftp 1 ,
.Xr ssh 1 ,
.Xr ssh-add 1 ,
.Xr ssh-agent 1 ,
.Xr ssh-keygen 1 ,
.Xr ssh-keyscan 1 ,
.Xr chroot 2 ,
-.Xr login.conf 5 ,
+.Xr login.defs 5 ,
.Xr moduli 5 ,
.Xr sshd_config 5 ,
.Xr inetd 8 ,
.Xr sftp-server 8
.Sh AUTHORS
OpenSSH is a derivative of the original and free
ssh 1.2.12 release by Tatu Ylonen.
Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos,
diff --git a/openssh-7.2p2/sshd_config.5 b/openssh-7.2p2/sshd_config.5
--- a/openssh-7.2p2/sshd_config.5
+++ b/openssh-7.2p2/sshd_config.5
@@ -370,18 +370,17 @@ for details).
The contents of the specified file are sent to the remote user before
authentication is allowed.
If the argument is
.Dq none
then no banner is displayed.
By default, no banner is displayed.
.It Cm ChallengeResponseAuthentication
Specifies whether challenge-response authentication is allowed (e.g. via
-PAM or through authentication styles supported in
-.Xr login.conf 5 )
+PAM)
The default is
.Dq yes .
.It Cm ChrootDirectory
Specifies the pathname of a directory to
.Xr chroot 2
to after authentication.
At session startup
.Xr sshd 8
@@ -766,17 +765,17 @@ and
.Pa .shosts
files will not be used in
.Cm RhostsRSAAuthentication
or
.Cm HostbasedAuthentication .
.Pp
.Pa /etc/hosts.equiv
and
-.Pa /etc/shosts.equiv
+.Pa /etc/ssh/shosts.equiv
are still used.
The default is
.Dq yes .
.It Cm IgnoreUserKnownHosts
Specifies whether
.Xr sshd 8
should ignore the user's
.Pa ~/.ssh/known_hosts

47
openssh-7.2p2-enable_PAM_by_default.patch
View File

@ -1,47 +0,0 @@
# HG changeset patch
# Parent 980f301b2920c09b30577dd722546bca85d25fc1
# force PAM in defaullt install (this was removed from upstream in 3.8p1)
# bnc#46749
# --used to be called '-pam-fix2'
diff --git a/openssh-7.2p2/sshd_config b/openssh-7.2p2/sshd_config
--- a/openssh-7.2p2/sshd_config
+++ b/openssh-7.2p2/sshd_config
@@ -64,17 +64,17 @@ AuthorizedKeysFile .ssh/authorized_keys
#HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and HostbasedAuthentication
#IgnoreUserKnownHosts no
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes
# To disable tunneled clear text passwords, change to no here!
-#PasswordAuthentication yes
+PasswordAuthentication no
#PermitEmptyPasswords no
# Change to no to disable s/key passwords
#ChallengeResponseAuthentication yes
# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
@@ -89,17 +89,17 @@ AuthorizedKeysFile .ssh/authorized_keys
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication. Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
-#UsePAM no
+UsePAM yes
#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PermitTTY yes

1834
openssh-7.2p2-fips.patch
View File

File diff suppressed because it is too large Load Diff

3963
openssh-7.2p2-gssapi_key_exchange.patch
View File

File diff suppressed because it is too large Load Diff

29
openssh-7.2p2-host_ident.patch
View File

@ -1,29 +0,0 @@
# HG changeset patch
# Parent e2f9b3303b4a4ed5d0e5f01009dd1ebea166890d
Suggest command line for removal of offending keys from known_hosts file
diff --git a/openssh-7.2p2/sshconnect.c b/openssh-7.2p2/sshconnect.c
--- a/openssh-7.2p2/sshconnect.c
+++ b/openssh-7.2p2/sshconnect.c
@@ -1086,16 +1086,21 @@ check_host_key(char *hostname, struct so
ip_found->file, ip_found->line);
}
/* The host key has changed. */
warn_changed_key(host_key);
error("Add correct host key in %.100s to get rid of this message.",
user_hostfiles[0]);
error("Offending %s key in %s:%lu", key_type(host_found->key),
host_found->file, host_found->line);
+ error("You can use following command to remove the offending key:");
+ if (host_found->file)
+ error("ssh-keygen -R %s -f %s", host, host_found->file);
+ else
+ error("ssh-keygen -R %s", host);
/*
* If strict host key checking is in use, the user will have
* to edit the key manually and we can only abort.
*/
if (options.strict_host_key_checking) {
error("%s host key for %.200s has changed and you have "
"requested strict checking.", type, host);

145
openssh-7.2p2-hostname_changes_when_forwarding_X.patch
View File

@ -1,145 +0,0 @@
# HG changeset patch
# Parent f7ba2081f120bd1e44dbe68737c898f078725aab
# -- uset do be called '-xauthlocalhostname'
handle hostname changes when forwarding X
bnc#98627
diff --git a/openssh-7.2p2/session.c b/openssh-7.2p2/session.c
--- a/openssh-7.2p2/session.c
+++ b/openssh-7.2p2/session.c
@@ -1154,17 +1154,17 @@ copy_environment(char **source, char ***
debug3("Copy environment: %s=%s", var_name, var_val);
child_set_env(env, envsize, var_name, var_val);
free(var_name);
}
}
static char **
-do_setup_env(Session *s, const char *shell)
+do_setup_env(Session *s, const char *shell, int *env_size)
{
char buf[256];
u_int i, envsize;
char **env, *laddr;
struct passwd *pw = s->pw;
#if !defined (HAVE_LOGIN_CAP) && !defined (HAVE_CYGWIN)
char *path = NULL;
#endif
@@ -1341,25 +1341,27 @@ do_setup_env(Session *s, const char *she
read_environment_file(&env, &envsize, buf);
}
if (debug_flag) {
/* dump the environment */
fprintf(stderr, "Environment:\n");
for (i = 0; env[i]; i++)
fprintf(stderr, " %.200s\n", env[i]);
}
+
+ *env_size = envsize;
return env;
}
/*
* Run $HOME/.ssh/rc, /etc/ssh/sshrc, or xauth (whichever is found
* first in this order).
*/
static void
-do_rc_files(Session *s, const char *shell)
+do_rc_files(Session *s, const char *shell, char **env, int *env_size)
{
FILE *f = NULL;
char cmd[1024];
int do_xauth;
struct stat st;
do_xauth =
s->display != NULL && s->auth_proto != NULL && s->auth_data != NULL;
@@ -1404,22 +1406,30 @@ do_rc_files(Session *s, const char *shel
"%.500s add %.100s %.100s %.100s\n",
options.xauth_location, s->auth_display,
s->auth_proto, s->auth_data);
}
snprintf(cmd, sizeof cmd, "%s -q -",
options.xauth_location);
f = popen(cmd, "w");
if (f) {
+ char hostname[MAXHOSTNAMELEN];
+
fprintf(f, "remove %s\n",
s->auth_display);
fprintf(f, "add %s %s %s\n",
s->auth_display, s->auth_proto,
s->auth_data);
pclose(f);
+ if (gethostname(hostname,sizeof(hostname)) >= 0)
+ child_set_env(&env,env_size,"XAUTHLOCALHOSTNAME",
+ hostname);
+ else
+ debug("Cannot set up XAUTHLOCALHOSTNAME %s\n",
+ strerror(errno));
} else {
fprintf(stderr, "Could not run %s\n",
cmd);
}
}
}
static void
@@ -1681,16 +1691,17 @@ child_close_fds(void)
* ids, and executing the command or shell.
*/
#define ARGV_MAX 10
void
do_child(Session *s, const char *command)
{
extern char **environ;
char **env;
+ int env_size;
char *argv[ARGV_MAX];
const char *shell, *shell0, *hostname = NULL;
struct passwd *pw = s->pw;
int r = 0;
/* remove hostkey from the child's memory */
destroy_sensitive_data();
@@ -1747,17 +1758,17 @@ do_child(Session *s, const char *command
* legal, and means /bin/sh.
*/
shell = (pw->pw_shell[0] == '\0') ? _PATH_BSHELL : pw->pw_shell;
/*
* Make sure $SHELL points to the shell from the password file,
* even if shell is overridden from login.conf
*/
- env = do_setup_env(s, shell);
+ env = do_setup_env(s, shell, &env_size);
#ifdef HAVE_LOGIN_CAP
shell = login_getcapstr(lc, "shell", (char *)shell, (char *)shell);
#endif
/* we have to stash the hostname before we close our socket. */
if (options.use_login)
hostname = get_remote_name_or_ip(utmp_len,
@@ -1816,17 +1827,17 @@ do_child(Session *s, const char *command
}
if (r)
exit(1);
}
closefrom(STDERR_FILENO + 1);
if (!options.use_login)
- do_rc_files(s, shell);
+ do_rc_files(s, shell, env, &env_size);
/* restore SIGPIPE for child */
signal(SIGPIPE, SIG_DFL);
if (s->is_subsystem == SUBSYSTEM_INT_SFTP_ERROR) {
printf("This service allows sftp connections only.\n");
fflush(NULL);
exit(1);

33
openssh-7.2p2-ignore_PAM_with_UseLogin.patch
View File

@ -1,33 +0,0 @@
# HG changeset patch
# Parent 0f00e960e1069c6a6eec975cc184171343701077
Do not import PAM environment variables when using login, since it may have
security implications.
CVE-2015-8325
bsc#975865
Backport of upstream commit 85bdcd7c92fe7ff133bbc4e10a65c91810f88755
diff --git a/openssh-7.2p2/session.c b/openssh-7.2p2/session.c
--- a/openssh-7.2p2/session.c
+++ b/openssh-7.2p2/session.c
@@ -1351,17 +1351,17 @@ do_setup_env(Session *s, const char *she
child_set_env(&env, &envsize, "KRB5CCNAME",
s->authctxt->krb5_ccname);
#endif
#ifdef USE_PAM
/*
* Pull in any environment variables that may have
* been set by PAM.
*/
- if (options.use_pam) {
+ if (options.use_pam && !options.use_login) {
char **p;
p = fetch_pam_child_environment();
copy_environment(p, &env, &envsize);
free_pam_environment(p);
p = fetch_pam_environment();
copy_environment(p, &env, &envsize);

66
openssh-7.2p2-keep_slogin.patch
View File

@ -1,66 +0,0 @@
# HG changeset patch
# Parent 7c29b31d3502bbf5b80e01f8d1db8b2733a3c7f4
Add slogin back to the distribution, since it might be used downstreams
Revert of cupstream commit 69fead5d7cdaa73bdece9fcba80f8e8e70b90346
diff --git a/openssh-7.2p2/Makefile.in b/openssh-7.2p2/Makefile.in
--- a/openssh-7.2p2/Makefile.in
+++ b/openssh-7.2p2/Makefile.in
@@ -354,16 +354,20 @@ install-files:
$(INSTALL) -m 644 sftp.1.out $(DESTDIR)$(mandir)/$(mansubdir)1/sftp.1
$(INSTALL) -m 644 sftp-server.8.out $(DESTDIR)$(mandir)/$(mansubdir)8/sftp-server.8
$(INSTALL) -m 644 ssh-keysign.8.out $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-keysign.8
$(INSTALL) -m 644 ssh-pkcs11-helper.8.out $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-pkcs11-helper.8
if test ! -z "$(INSTALL_SSH_LDAP_HELPER)" ; then \
$(INSTALL) -m 644 ssh-ldap-helper.8.out $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-ldap-helper.8 ; \
$(INSTALL) -m 644 ssh-ldap.conf.5.out $(DESTDIR)$(mandir)/$(mansubdir)5/ssh-ldap.conf.5 ; \
fi
+ -rm -f $(DESTDIR)$(bindir)/slogin
+ ln -s ./ssh$(EXEEXT) $(DESTDIR)$(bindir)/slogin
+ -rm -f $(DESTDIR)$(mandir)/$(mansubdir)1/slogin.1
+ ln -s ./ssh.1 $(DESTDIR)$(mandir)/$(mansubdir)1/slogin.1
install-sysconf:
if [ ! -d $(DESTDIR)$(sysconfdir) ]; then \
$(srcdir)/mkinstalldirs $(DESTDIR)$(sysconfdir); \
fi
@if [ ! -f $(DESTDIR)$(sysconfdir)/ssh_config ]; then \
$(INSTALL) -m 644 ssh_config.out $(DESTDIR)$(sysconfdir)/ssh_config; \
else \
@@ -415,16 +419,17 @@ uninstallall: uninstall
-rmdir $(DESTDIR)$(bindir)
-rmdir $(DESTDIR)$(sbindir)
-rmdir $(DESTDIR)$(mandir)/$(mansubdir)1
-rmdir $(DESTDIR)$(mandir)/$(mansubdir)8
-rmdir $(DESTDIR)$(mandir)
-rmdir $(DESTDIR)$(libexecdir)
uninstall:
+ -rm -f $(DESTDIR)$(bindir)/slogin
-rm -f $(DESTDIR)$(bindir)/ssh$(EXEEXT)
-rm -f $(DESTDIR)$(bindir)/scp$(EXEEXT)
-rm -f $(DESTDIR)$(bindir)/ssh-add$(EXEEXT)
-rm -f $(DESTDIR)$(bindir)/ssh-agent$(EXEEXT)
-rm -f $(DESTDIR)$(bindir)/ssh-keygen$(EXEEXT)
-rm -f $(DESTDIR)$(bindir)/ssh-keyscan$(EXEEXT)
-rm -f $(DESTDIR)$(bindir)/sftp$(EXEEXT)
-rm -f $(DESTDIR)$(sbindir)/sshd$(EXEEXT)
@@ -440,16 +445,17 @@ uninstall:
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)1/ssh-keygen.1
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)1/sftp.1
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)1/ssh-keyscan.1
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)8/sshd.8
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)8/sftp-server.8
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-keysign.8
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-pkcs11-helper.8
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-ldap-helper.8
+ -rm -f $(DESTDIR)$(mandir)/$(mansubdir)1/slogin.1
regress-prep:
[ -d `pwd`/regress ] || mkdir -p `pwd`/regress
[ -d `pwd`/regress/unittests ] || mkdir -p `pwd`/regress/unittests
[ -d `pwd`/regress/unittests/test_helper ] || \
mkdir -p `pwd`/regress/unittests/test_helper
[ -d `pwd`/regress/unittests/sshbuf ] || \
mkdir -p `pwd`/regress/unittests/sshbuf

30
openssh-7.2p2-kex_resource_depletion.patch
View File

@ -1,30 +0,0 @@
# HG changeset patch
# Parent 5d3b620e9c7c42bfb1d8f24eb7e0645a55d967fa
Prevent memory depletion during key exchange
CVE-2016-8858
bsc#1005480
upstream commit ec165c392ca54317dbe3064a8c200de6531e89ad
diff --git a/openssh-7.2p2/kex.c b/openssh-7.2p2/kex.c
--- a/openssh-7.2p2/kex.c
+++ b/openssh-7.2p2/kex.c
@@ -523,16 +523,17 @@ kex_input_kexinit(int type, u_int32_t se
u_int i;
size_t dlen;
int r;
debug("SSH2_MSG_KEXINIT received");
if (kex == NULL)
return SSH_ERR_INVALID_ARGUMENT;
+ ssh_dispatch_set(ssh, SSH2_MSG_KEXINIT, NULL);
ptr = sshpkt_ptr(ssh, &dlen);
if ((r = sshbuf_put(kex->peer, ptr, dlen)) != 0)
return r;
/* discard packet */
for (i = 0; i < KEX_COOKIE_LEN; i++)
if ((r = sshpkt_get_u8(ssh, NULL)) != 0)
return r;

26
openssh-7.2p2-lastlog.patch
View File

@ -1,26 +0,0 @@
# HG changeset patch
# Parent 79c00e0f450c33b3f545ef104112b55186290e2c
# set uid for functions that use it to seek in lastlog and wtmp files
# bnc#18024 (was suse #3024)
diff --git a/openssh-7.2p2/sshlogin.c b/openssh-7.2p2/sshlogin.c
--- a/openssh-7.2p2/sshlogin.c
+++ b/openssh-7.2p2/sshlogin.c
@@ -129,16 +129,17 @@ record_login(pid_t pid, const char *tty,
{
struct logininfo *li;
/* save previous login details before writing new */
store_lastlog_message(user, uid);
li = login_alloc_entry(pid, user, host, tty);
login_set_addr(li, addr, addrlen);
+ li->uid = uid;
login_login(li);
login_free_entry(li);
}
#ifdef LOGIN_NEEDS_UTMPX
void
record_utmp_only(pid_t pid, const char *ttyname, const char *user,
const char *host, struct sockaddr *addr, socklen_t addrlen)

2838
openssh-7.2p2-ldap.patch
View File

File diff suppressed because it is too large Load Diff

52
openssh-7.2p2-limit_password_length.patch
View File

@ -1,52 +0,0 @@
# HG changeset patch
# Parent 9888bc3f536eab9f528d9c96e5e8a2501ed168f5
Limit accepted passwords length to prevent DoS by resource consumption
(via crypt() eating CPU cycles).
CVE-2016-6515
bsc#992533
upstream commit: fcd135c9df440bcd2d5870405ad3311743d78d97
diff --git a/openssh-7.2p2/auth-passwd.c b/openssh-7.2p2/auth-passwd.c
--- a/openssh-7.2p2/auth-passwd.c
+++ b/openssh-7.2p2/auth-passwd.c
@@ -61,16 +61,18 @@ extern ServerOptions options;
#ifdef HAVE_LOGIN_CAP
extern login_cap_t *lc;
#endif
#define DAY (24L * 60 * 60) /* 1 day in seconds */
#define TWO_WEEKS (2L * 7 * DAY) /* 2 weeks in seconds */
+#define MAX_PASSWORD_LEN 1024
+
void
disable_forwarding(void)
{
no_port_forwarding_flag = 1;
no_agent_forwarding_flag = 1;
no_x11_forwarding_flag = 1;
}
@@ -82,16 +84,19 @@ int
auth_password(Authctxt *authctxt, const char *password)
{
struct passwd * pw = authctxt->pw;
int result, ok = authctxt->valid;
#if defined(USE_SHADOW) && defined(HAS_SHADOW_EXPIRE)
static int expire_checked = 0;
#endif
+ if (strlen(password) > MAX_PASSWORD_LEN)
+ return 0;
+
#ifndef HAVE_CYGWIN
if (pw->pw_uid == 0 && options.permit_root_login != PERMIT_YES)
ok = 0;
#endif
if (*password == '\0' && options.permit_empty_passwd == 0)
return 0;
#ifdef KRB5

32
openssh-7.2p2-login_options.patch
View File

@ -1,32 +0,0 @@
# HG changeset patch
# Parent b86c2190c93aeaf958c22fc7b224dcaf87100288
# HG changeset patch
# Parent b262fd34c8ecd55e93d457b3ca5593abce716856
# login-pam cannot handle the option terminator "--" as login from util-linux
# (this is correct behaviour considering its man-page), hence use option which
# selects the compile-time branch in the code which doesn't use the terminator
#
# bnc#833605
diff --git a/openssh-7.2p2/configure.ac b/openssh-7.2p2/configure.ac
--- a/openssh-7.2p2/configure.ac
+++ b/openssh-7.2p2/configure.ac
@@ -770,16 +770,18 @@ main() { if (NSVersionOfRunTimeLibrary("
AC_DEFINE([_PATH_BTMP], ["/var/log/btmp"], [log for bad login attempts])
AC_DEFINE([USE_BTMP], [1], [Use btmp to log bad logins])
;;
*-*-linux*)
no_dev_ptmx=1
use_pie=auto
check_for_libcrypt_later=1
check_for_openpty_ctty_bug=1
+ AC_DEFINE([LOGIN_NO_ENDOPT], [1],
+ [Define if your login program cannot handle end of options ("--")])
AC_DEFINE([PAM_TTY_KLUDGE], [1],
[Work around problematic Linux PAM modules handling of PAM_TTY])
AC_DEFINE([LOCKED_PASSWD_PREFIX], ["!"],
[String used in /etc/passwd to denote locked account])
AC_DEFINE([SPT_TYPE], [SPT_REUSEARGV])
AC_DEFINE([LINK_OPNOTSUPP_ERRNO], [EPERM],
[Define to whatever link() returns for "not supported"
if it doesn't return EOPNOTSUPP.])

26
openssh-7.2p2-no_fork-no_pid_file.patch
View File

@ -1,26 +0,0 @@
# HG changeset patch
# Parent 4011d0f5c00b663976c9940dc4ef79642605cf90
Do not write a PID file when not daemonizing (e.g. when running from systemd)
diff --git a/openssh-7.2p2/sshd.c b/openssh-7.2p2/sshd.c
--- a/openssh-7.2p2/sshd.c
+++ b/openssh-7.2p2/sshd.c
@@ -2107,17 +2107,17 @@ main(int ac, char **av)
signal(SIGCHLD, main_sigchld_handler);
signal(SIGTERM, sigterm_handler);
signal(SIGQUIT, sigterm_handler);
/*
* Write out the pid file after the sigterm handler
* is setup and the listen sockets are bound
*/
- if (options.pid_file != NULL && !debug_flag) {
+ if (!no_daemon_flag && options.pid_file != NULL && !debug_flag) {
FILE *f = fopen(options.pid_file, "w");
if (f == NULL) {
error("Couldn't create pid file \"%s\": %s",
options.pid_file, strerror(errno));
} else {
fprintf(f, "%ld\n", (long) getpid());
fclose(f);

229
openssh-7.2p2-pam_check_locks.patch
View File

@ -1,229 +0,0 @@
# HG changeset patch
# Parent ac7f843cd7ebec413691d51823cdc67b611abdff
new option UsePAMCheckLocks to enforce checking for locked accounts while
UsePAM is used
bnc#708678, FATE#312033
diff --git a/openssh-7.2p2/auth.c b/openssh-7.2p2/auth.c
--- a/openssh-7.2p2/auth.c
+++ b/openssh-7.2p2/auth.c
@@ -104,17 +104,17 @@ allowed_user(struct passwd * pw)
struct spwd *spw = NULL;
#endif
/* Shouldn't be called if pw is NULL, but better safe than sorry... */
if (!pw || !pw->pw_name)
return 0;
#ifdef USE_SHADOW
- if (!options.use_pam)
+ if (!options.use_pam || options.use_pam_check_locks)
spw = getspnam(pw->pw_name);
#ifdef HAS_SHADOW_EXPIRE
if (!options.use_pam && spw != NULL && auth_shadow_acctexpired(spw))
return 0;
#endif /* HAS_SHADOW_EXPIRE */
#endif /* USE_SHADOW */
/* grab passwd field for locked account check */
@@ -124,17 +124,17 @@ allowed_user(struct passwd * pw)
#ifdef USE_LIBIAF
passwd = get_iaf_password(pw);
#else
passwd = spw->sp_pwdp;
#endif /* USE_LIBIAF */
#endif
/* check for locked account */
- if (!options.use_pam && passwd && *passwd) {
+ if ((!options.use_pam || options.use_pam_check_locks) && passwd && *passwd) {
int locked = 0;
#ifdef LOCKED_PASSWD_STRING
if (strcmp(passwd, LOCKED_PASSWD_STRING) == 0)
locked = 1;
#endif
#ifdef LOCKED_PASSWD_PREFIX
if (strncmp(passwd, LOCKED_PASSWD_PREFIX,
diff --git a/openssh-7.2p2/servconf.c b/openssh-7.2p2/servconf.c
--- a/openssh-7.2p2/servconf.c
+++ b/openssh-7.2p2/servconf.c
@@ -69,16 +69,17 @@ extern Buffer cfg;
void
initialize_server_options(ServerOptions *options)
{
memset(options, 0, sizeof(*options));
/* Portable-specific options */
options->use_pam = -1;
+ options->use_pam_check_locks = -1;
/* Standard Options */
options->num_ports = 0;
options->ports_from_cmdline = 0;
options->queued_listen_addrs = NULL;
options->num_queued_listens = 0;
options->listen_addrs = NULL;
options->address_family = -1;
@@ -195,16 +196,18 @@ assemble_algorithms(ServerOptions *o)
void
fill_default_server_options(ServerOptions *options)
{
int i;
/* Portable-specific options */
if (options->use_pam == -1)
options->use_pam = 0;
+ if (options->use_pam_check_locks == -1)
+ options->use_pam_check_locks = 0;
/* Standard Options */
if (options->protocol == SSH_PROTO_UNKNOWN)
options->protocol = SSH_PROTO_2;
if (options->num_host_key_files == 0) {
/* fill default hostkeys for protocols */
if (options->protocol & SSH_PROTO_1)
options->host_key_files[options->num_host_key_files++] =
@@ -391,17 +394,17 @@ fill_default_server_options(ServerOption
#endif
}
/* Keyword tokens. */
typedef enum {
sBadOption, /* == unknown option */
/* Portable-specific options */
- sUsePAM,
+ sUsePAM, sUsePAMChecklocks,
/* Standard Options */
sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime,
sKeyRegenerationTime, sPermitRootLogin, sLogFacility, sLogLevel,
sRhostsRSAAuthentication, sRSAAuthentication,
sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
sKerberosGetAFSToken,
sKerberosTgtPassing, sChallengeResponseAuthentication,
sPasswordAuthentication, sKbdInteractiveAuthentication,
@@ -441,18 +444,20 @@ typedef enum {
static struct {
const char *name;
ServerOpCodes opcode;
u_int flags;
} keywords[] = {
/* Portable-specific options */
#ifdef USE_PAM
{ "usepam", sUsePAM, SSHCFG_GLOBAL },
+ { "usepamchecklocks", sUsePAMChecklocks, SSHCFG_GLOBAL },
#else
{ "usepam", sUnsupported, SSHCFG_GLOBAL },
+ { "usepamchecklocks", sUnsupported, SSHCFG_GLOBAL },
#endif
{ "pamauthenticationviakbdint", sDeprecated, SSHCFG_GLOBAL },
/* Standard Options */
{ "port", sPort, SSHCFG_GLOBAL },
{ "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
{ "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
{ "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL },
{ "pidfile", sPidFile, SSHCFG_GLOBAL },
@@ -1005,16 +1010,19 @@ process_server_config_line(ServerOptions
}
}
switch (opcode) {
/* Portable-specific options */
case sUsePAM:
intptr = &options->use_pam;
goto parse_flag;
+ case sUsePAMChecklocks:
+ intptr = &options->use_pam_check_locks;
+ goto parse_flag;
/* Standard Options */
case sBadOption:
return -1;
case sPort:
/* ignore ports from configfile if cmdline specifies ports */
if (options->ports_from_cmdline)
return 0;
diff --git a/openssh-7.2p2/servconf.h b/openssh-7.2p2/servconf.h
--- a/openssh-7.2p2/servconf.h
+++ b/openssh-7.2p2/servconf.h
@@ -167,16 +167,17 @@ typedef struct {
*/
u_int num_authkeys_files; /* Files containing public keys */
char *authorized_keys_files[MAX_AUTHKEYS_FILES];
char *adm_forced_command;
int use_pam; /* Enable auth via PAM */
+ int use_pam_check_locks; /* internally check for locked accounts even when using PAM */
int permit_tun;
int num_permitted_opens;
char *chroot_directory;
char *revoked_keys_file;
char *trusted_user_ca_keys;
diff --git a/openssh-7.2p2/sshd_config.0 b/openssh-7.2p2/sshd_config.0
--- a/openssh-7.2p2/sshd_config.0
+++ b/openssh-7.2p2/sshd_config.0
@@ -946,16 +946,24 @@ DESCRIPTION
Because PAM challenge-response authentication usually serves an
equivalent role to password authentication, you should disable
either PasswordAuthentication or ChallengeResponseAuthentication.
If UsePAM is enabled, you will not be able to run sshd(8) as a
non-root user. The default is M-bM-^@M-^\noM-bM-^@M-^].
+ UsePAMCheckLocks
+ When set to ``yes'', the checks whether the account has been
+ locked with `passwd -l' are performed even when PAM authentication
+ is enabled via UsePAM. This is to ensure that it is not possible
+ to log in with e.g. a public key (in such a case PAM is used only
+ to set up the session and some PAM modules will not check whether
+ the account is locked in this scenario). The default is ``no''.
+
UsePrivilegeSeparation
Specifies whether sshd(8) separates privileges by creating an
unprivileged child process to deal with incoming network traffic.
After successful authentication, another process will be created
that has the privilege of the authenticated user. The goal of
privilege separation is to prevent privilege escalation by
containing any corruption within the unprivileged processes. The
argument must be M-bM-^@M-^\yesM-bM-^@M-^], M-bM-^@M-^\noM-bM-^@M-^], or M-bM-^@M-^\sandboxM-bM-^@M-^]. If
diff --git a/openssh-7.2p2/sshd_config.5 b/openssh-7.2p2/sshd_config.5
--- a/openssh-7.2p2/sshd_config.5
+++ b/openssh-7.2p2/sshd_config.5
@@ -1578,16 +1578,28 @@ or
.Pp
If
.Cm UsePAM
is enabled, you will not be able to run
.Xr sshd 8
as a non-root user.
The default is
.Dq no .
+.It Cm UsePAMCheckLocks
+When set to
+.Dq yes
+, the checks whether the account has been locked with
+.Pa passwd -l
+are performed even when PAM authentication is enabled via
+.Cm UsePAM .
+This is to ensure that it is not possible to log in with e.g. a
+public key (in such a case PAM is used only to set up the session and some PAM
+modules will not check whether the account is locked in this scenario). The
+default is
+.Dq no .
.It Cm UsePrivilegeSeparation
Specifies whether
.Xr sshd 8
separates privileges by creating an unprivileged child process
to deal with incoming network traffic.
After successful authentication, another process will be created that has
the privilege of the authenticated user.
The goal of privilege separation is to prevent privilege

188
openssh-7.2p2-prevent_private_key_leakage.patch
View File

@ -1,188 +0,0 @@
# HG changeset patch
# Parent e2a8c999f737bca97bbc330ce6683de842ba195e
Pre-allocare buffer for private keys data to prevent leaking of sensitive data
via heap.
CVE-2016-10011
bsc#1016369
backported upstream commit 54d022026aae4f53fa74cc636e4a032d9689b64d
backported upstream commit a9c746088787549bb5b1ae3add7d06a1b6d93d5e
diff --git a/openssh-7.2p2/authfile.c b/openssh-7.2p2/authfile.c
--- a/openssh-7.2p2/authfile.c
+++ b/openssh-7.2p2/authfile.c
@@ -95,23 +95,35 @@ sshkey_save_private(struct sshkey *key,
/* Load a key from a fd into a buffer */
int
sshkey_load_file(int fd, struct sshbuf *blob)
{
u_char buf[1024];
size_t len;
struct stat st;
- int r;
+ int r, dontmax = 0;
if (fstat(fd, &st) < 0)
return SSH_ERR_SYSTEM_ERROR;
if ((st.st_mode & (S_IFSOCK|S_IFCHR|S_IFIFO)) == 0 &&
st.st_size > MAX_KEY_FILE_SIZE)
return SSH_ERR_INVALID_FORMAT;
+ /*
+ * Pre-allocate the buffer used for the key contents and clamp its
+ * maximum size. This ensures that key contents are never leaked via
+ * implicit realloc() in the sshbuf code.
+ */
+ if ((st.st_mode & S_IFREG) == 0 || st.st_size <= 0) {
+ st.st_size = 64*1024; /* 64k should be enough for anyone :) */
+ dontmax = 1;
+ }
+ if ((r = sshbuf_allocate(blob, st.st_size)) != 0 ||
+ (dontmax && (r = sshbuf_set_max_size(blob, st.st_size)) != 0))
+ return r;
for (;;) {
if ((len = atomicio(read, fd, buf, sizeof(buf))) == 0) {
if (errno == EPIPE)
break;
r = SSH_ERR_SYSTEM_ERROR;
goto out;
}
if ((r = sshbuf_put(blob, buf, len)) != 0)
diff --git a/openssh-7.2p2/sshbuf.c b/openssh-7.2p2/sshbuf.c
--- a/openssh-7.2p2/sshbuf.c
+++ b/openssh-7.2p2/sshbuf.c
@@ -311,63 +311,73 @@ sshbuf_check_reserve(const struct sshbuf
SSHBUF_TELL("check");
/* Check that len is reasonable and that max_size + available < len */
if (len > buf->max_size || buf->max_size - len < buf->size - buf->off)
return SSH_ERR_NO_BUFFER_SPACE;
return 0;
}
int
-sshbuf_reserve(struct sshbuf *buf, size_t len, u_char **dpp)
+sshbuf_allocate(struct sshbuf *buf, size_t len)
{
size_t rlen, need;
u_char *dp;
int r;
- if (dpp != NULL)
- *dpp = NULL;
-
- SSHBUF_DBG(("reserve buf = %p len = %zu", buf, len));
+ SSHBUF_DBG(("allocate buf = %p len = %zu", buf, len));
if ((r = sshbuf_check_reserve(buf, len)) != 0)
return r;
/*
* If the requested allocation appended would push us past max_size
* then pack the buffer, zeroing buf->off.
*/
sshbuf_maybe_pack(buf, buf->size + len > buf->max_size);
- SSHBUF_TELL("reserve");
- if (len + buf->size > buf->alloc) {
- /*
- * Prefer to alloc in SSHBUF_SIZE_INC units, but
- * allocate less if doing so would overflow max_size.
- */
- need = len + buf->size - buf->alloc;
- rlen = roundup(buf->alloc + need, SSHBUF_SIZE_INC);
- SSHBUF_DBG(("need %zu initial rlen %zu", need, rlen));
- if (rlen > buf->max_size)
- rlen = buf->alloc + need;
- SSHBUF_DBG(("adjusted rlen %zu", rlen));
- if ((dp = realloc(buf->d, rlen)) == NULL) {
- SSHBUF_DBG(("realloc fail"));
- if (dpp != NULL)
- *dpp = NULL;
- return SSH_ERR_ALLOC_FAIL;
- }
- buf->alloc = rlen;
- buf->cd = buf->d = dp;
- if ((r = sshbuf_check_reserve(buf, len)) < 0) {
- /* shouldn't fail */
- if (dpp != NULL)
- *dpp = NULL;
- return r;
- }
+ SSHBUF_TELL("allocate");
+ if (len + buf->size <= buf->alloc)
+ return 0; /* already have it. */
+
+ /*
+ * Prefer to alloc in SSHBUF_SIZE_INC units, but
+ * allocate less if doing so would overflow max_size.
+ */
+ need = len + buf->size - buf->alloc;
+ rlen = roundup(buf->alloc + need, SSHBUF_SIZE_INC);
+ SSHBUF_DBG(("need %zu initial rlen %zu", need, rlen));
+ if (rlen > buf->max_size)
+ rlen = buf->alloc + need;
+ SSHBUF_DBG(("adjusted rlen %zu", rlen));
+ if ((dp = realloc(buf->d, rlen)) == NULL) {
+ SSHBUF_DBG(("realloc fail"));
+ return SSH_ERR_ALLOC_FAIL;
}
+ buf->alloc = rlen;
+ buf->cd = buf->d = dp;
+ if ((r = sshbuf_check_reserve(buf, len)) < 0) {
+ /* shouldn't fail */
+ return r;
+ }
+ SSHBUF_TELL("done");
+ return 0;
+}
+
+int
+sshbuf_reserve(struct sshbuf *buf, size_t len, u_char **dpp)
+{
+ u_char *dp;
+ int r;
+
+ if (dpp != NULL)
+ *dpp = NULL;
+
+ SSHBUF_DBG(("reserve buf = %p len = %zu", buf, len));
+ if ((r = sshbuf_allocate(buf, len)) != 0)
+ return r;
+
dp = buf->d + buf->size;
buf->size += len;
- SSHBUF_TELL("done");
if (dpp != NULL)
*dpp = dp;
return 0;
}
int
sshbuf_consume(struct sshbuf *buf, size_t len)
{
diff --git a/openssh-7.2p2/sshbuf.h b/openssh-7.2p2/sshbuf.h
--- a/openssh-7.2p2/sshbuf.h
+++ b/openssh-7.2p2/sshbuf.h
@@ -134,16 +134,24 @@ u_char *sshbuf_mutable_ptr(const struct
* Check whether a reservation of size len will succeed in buf
* Safer to use than direct comparisons again sshbuf_avail as it copes
* with unsigned overflows correctly.
* Returns 0 on success, or a negative SSH_ERR_* error code on failure.
*/
int sshbuf_check_reserve(const struct sshbuf *buf, size_t len);
/*
+ * Preallocates len additional bytes in buf.
+ * Useful for cases where the caller knows how many bytes will ultimately be
+ * required to avoid realloc in the buffer code.
+ * Returns 0 on success, or a negative SSH_ERR_* error code on failure.
+ */
+int sshbuf_allocate(struct sshbuf *buf, size_t len);
+
+/*
* Reserve len bytes in buf.
* Returns 0 on success and a pointer to the first reserved byte via the
* optional dpp parameter or a negative * SSH_ERR_* error code on failure.
*/
int sshbuf_reserve(struct sshbuf *buf, size_t len, u_char **dpp);
/*
* Consume len bytes from the start of buf

264
openssh-7.2p2-prevent_timing_user_enumeration.patch
View File

@ -1,264 +0,0 @@
# HG changeset patch
# Parent 4a254abf4ef391358257310ad2fe15c9e12dee34
Prevent user enumeration through password processing timing
CVE-2016-6210
bsc#989363
non-PAM part:
upstream commit: 9286875a73b2de7736b5e50692739d314cd8d9dc
PAM part:
upstream commit: 283b97ff33ea2c641161950849931bd578de6946
diff --git a/openssh-7.2p2/auth-pam.c b/openssh-7.2p2/auth-pam.c
--- a/openssh-7.2p2/auth-pam.c
+++ b/openssh-7.2p2/auth-pam.c
@@ -227,17 +227,16 @@ static pam_handle_t *sshpam_handle = NUL
static int sshpam_err = 0;
static int sshpam_authenticated = 0;
static int sshpam_session_open = 0;
static int sshpam_cred_established = 0;
static int sshpam_account_status = -1;
static char **sshpam_env = NULL;
static Authctxt *sshpam_authctxt = NULL;
static const char *sshpam_password = NULL;
-static char badpw[] = "\b\n\r\177INCORRECT";
/* Some PAM implementations don't implement this */
#ifndef HAVE_PAM_GETENVLIST
static char **
pam_getenvlist(pam_handle_t *pamh)
{
/*
* XXX - If necessary, we can still support envrionment passing
@@ -807,22 +806,45 @@ sshpam_query(void *ctx, char **name, cha
free(msg);
ctxt->pam_done = -1;
return (-1);
}
}
return (-1);
}
+/*
+ * Returns a junk password of identical length to that the user supplied.
+ * Used to mitigate timing attacks against crypt(3)/PAM stacks that
+ * vary processing time in proportion to password length.
+ */
+static char *
+fake_password(const char *wire_password)
+{
+ const char junk[] = "\b\n\r\177INCORRECT";
+ char *ret = NULL;
+ size_t i, l = wire_password != NULL ? strlen(wire_password) : 0;
+
+ if (l >= INT_MAX)
+ fatal("%s: password length too long: %zu", __func__, l);
+
+ ret = xmalloc(l + 1);
+ for (i = 0; i < l; i++)
+ ret[i] = junk[i % (sizeof(junk) - 1)];
+ ret[i] = '\0';
+ return ret;
+}
+
/* XXX - see also comment in auth-chall.c:verify_response */
static int
sshpam_respond(void *ctx, u_int num, char **resp)
{
Buffer buffer;
struct pam_ctxt *ctxt = ctx;
+ char *fake;
debug2("PAM: %s entering, %u responses", __func__, num);
switch (ctxt->pam_done) {
case 1:
sshpam_authenticated = 1;
return (0);
case 0:
break;
@@ -833,18 +855,21 @@ sshpam_respond(void *ctx, u_int num, cha
error("PAM: expected one response, got %u", num);
return (-1);
}
buffer_init(&buffer);
if (sshpam_authctxt->valid &&
(sshpam_authctxt->pw->pw_uid != 0 ||
options.permit_root_login == PERMIT_YES))
buffer_put_cstring(&buffer, *resp);
- else
- buffer_put_cstring(&buffer, badpw);
+ else {
+ fake = fake_password(*resp);
+ buffer_put_cstring(&buffer, fake);
+ free(fake);
+ }
if (ssh_msg_send(ctxt->pam_psock, PAM_AUTHTOK, &buffer) == -1) {
buffer_free(&buffer);
return (-1);
}
buffer_free(&buffer);
return (1);
}
@@ -1178,41 +1203,43 @@ static struct pam_conv passwd_conv = { s
/*
* Attempt password authentication via PAM
*/
int
sshpam_auth_passwd(Authctxt *authctxt, const char *password)
{
int flags = (options.permit_empty_passwd == 0 ?
PAM_DISALLOW_NULL_AUTHTOK : 0);
+ char *fake = NULL;
if (!options.use_pam || sshpam_handle == NULL)
fatal("PAM: %s called when PAM disabled or failed to "
"initialise.", __func__);
sshpam_password = password;
sshpam_authctxt = authctxt;
/*
* If the user logging in is invalid, or is root but is not permitted
* by PermitRootLogin, use an invalid password to prevent leaking
* information via timing (eg if the PAM config has a delay on fail).
*/
if (!authctxt->valid || (authctxt->pw->pw_uid == 0 &&
options.permit_root_login != PERMIT_YES))
- sshpam_password = badpw;
+ sshpam_password = fake = fake_password(password);
sshpam_err = pam_set_item(sshpam_handle, PAM_CONV,
(const void *)&passwd_conv);
if (sshpam_err != PAM_SUCCESS)
fatal("PAM: %s: failed to set PAM_CONV: %s", __func__,
pam_strerror(sshpam_handle, sshpam_err));
sshpam_err = pam_authenticate(sshpam_handle, flags);
sshpam_password = NULL;
+ free(fake);
if (sshpam_err == PAM_SUCCESS && authctxt->valid) {
debug("PAM: password authentication accepted for %.100s",
authctxt->user);
return 1;
} else {
debug("PAM: password authentication failed for %.100s: %s",
authctxt->valid ? authctxt->user : "an illegal user",
pam_strerror(sshpam_handle, sshpam_err));
diff --git a/openssh-7.2p2/auth-passwd.c b/openssh-7.2p2/auth-passwd.c
--- a/openssh-7.2p2/auth-passwd.c
+++ b/openssh-7.2p2/auth-passwd.c
@@ -188,28 +188,32 @@ sys_auth_passwd(Authctxt *authctxt, cons
return (auth_close(as));
}
}
#elif !defined(CUSTOM_SYS_AUTH_PASSWD)
int
sys_auth_passwd(Authctxt *authctxt, const char *password)
{
struct passwd *pw = authctxt->pw;
- char *encrypted_password;
+ char *encrypted_password, *salt = NULL;
/* Just use the supplied fake password if authctxt is invalid */
char *pw_password = authctxt->valid ? shadow_pw(pw) : pw->pw_passwd;
/* Check for users with no password. */
if (strcmp(pw_password, "") == 0 && strcmp(password, "") == 0)
return (1);
- /* Encrypt the candidate password using the proper salt. */
- encrypted_password = xcrypt(password,
- (pw_password[0] && pw_password[1]) ? pw_password : "xx");
+ /*
+ * Encrypt the candidate password using the proper salt, or pass a
+ * NULL and let xcrypt pick one.
+ */
+ if (authctxt->valid && pw_password[0] && pw_password[1])
+ salt = pw_password;
+ encrypted_password = xcrypt(password, salt);
/*
* Authentication is accepted if the encrypted passwords
* are identical.
*/
return encrypted_password != NULL &&
strcmp(encrypted_password, pw_password) == 0;
}
diff --git a/openssh-7.2p2/openbsd-compat/xcrypt.c b/openssh-7.2p2/openbsd-compat/xcrypt.c
--- a/openssh-7.2p2/openbsd-compat/xcrypt.c
+++ b/openssh-7.2p2/openbsd-compat/xcrypt.c
@@ -20,16 +20,17 @@
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "includes.h"
#include <sys/types.h>
+#include <string.h>
#include <unistd.h>
#include <pwd.h>
# if defined(HAVE_CRYPT_H) && !defined(HAVE_SECUREWARE)
# include <crypt.h>
# endif
# ifdef __hpux
@@ -57,21 +58,54 @@
# include "md5crypt.h"
# endif
# if defined(WITH_OPENSSL) && !defined(HAVE_CRYPT) && defined(HAVE_DES_CRYPT)
# include <openssl/des.h>
# define crypt DES_crypt
# endif
+/*
+ * Pick an appropriate password encryption type and salt for the running
+ * system.
+ */
+static const char *
+pick_salt(void)
+{
+ struct passwd *pw;
+ char *passwd, *p;
+ size_t typelen;
+ static char salt[32];
+
+ if (salt[0] != '\0')
+ return salt;
+ strlcpy(salt, "xx", sizeof(salt));
+ if ((pw = getpwuid(0)) == NULL)
+ return salt;
+ passwd = shadow_pw(pw);
+ if (passwd[0] != '$' || (p = strrchr(passwd + 1, '$')) == NULL)
+ return salt; /* no $, DES */
+ typelen = p - passwd + 1;
+ strlcpy(salt, passwd, MIN(typelen, sizeof(salt)));
+ explicit_bzero(passwd, strlen(passwd));
+ return salt;
+}
+
char *
xcrypt(const char *password, const char *salt)
{
char *crypted;
+ /*
+ * If we don't have a salt we are encrypting a fake password for
+ * for timing purposes. Pick an appropriate salt.
+ */
+ if (salt == NULL)
+ salt = pick_salt();
+
# ifdef HAVE_MD5_PASSWORDS
if (is_md5_salt(salt))
crypted = md5_crypt(password, salt);
else
crypted = crypt(password, salt);
# elif defined(__hpux) && !defined(HAVE_SECUREWARE)
if (iscomsec())
crypted = bigcrypt(password, salt);

49
openssh-7.2p2-pts_names_formatting.patch
View File

@ -1,49 +0,0 @@
# HG changeset patch
# Parent 787bc0aab11e5a7b6510c8dbf771958743ca25b0
# use same lines naming as utempter (prevents problems with using different
# formats in ?tmp? files)
# --used to be called '-pts'
diff --git a/openssh-7.2p2/loginrec.c b/openssh-7.2p2/loginrec.c
--- a/openssh-7.2p2/loginrec.c
+++ b/openssh-7.2p2/loginrec.c
@@ -541,17 +541,17 @@ getlast_entry(struct logininfo *li)
/*
* 'line' string utility functions
*
* These functions process the 'line' string into one of three forms:
*
* 1. The full filename (including '/dev')
* 2. The stripped name (excluding '/dev')
* 3. The abbreviated name (e.g. /dev/ttyp00 -> yp00
- * /dev/pts/1 -> ts/1 )
+ * /dev/pts/1 -> /1 )
*
* Form 3 is used on some systems to identify a .tmp.? entry when
* attempting to remove it. Typically both addition and removal is
* performed by one application - say, sshd - so as long as the choice
* uniquely identifies a terminal it's ok.
*/
@@ -602,16 +602,20 @@ line_abbrevname(char *dst, const char *s
/* Always skip prefix if present */
if (strncmp(src, "/dev/", 5) == 0)
src += 5;
#ifdef WITH_ABBREV_NO_TTY
if (strncmp(src, "tty", 3) == 0)
src += 3;
#endif
+ if (strncmp(src, "pts/", 4) == 0) {
+ src += 3;
+ if (strlen(src) > 4) src++;
+ }
len = strlen(src);
if (len > 0) {
if (((int)len - dstsize) > 0)
src += ((int)len - dstsize);
/* note: _don't_ change this to strlcpy */

55
openssh-7.2p2-remove_xauth_cookies_on_exit.patch
View File

@ -1,55 +0,0 @@
# HG changeset patch
# Parent 18c2690afd988b9cb0fd0fa927d02cf5336dce9c
# --used to be called '-xauth'
try to remove xauth cookies on logout
bnc#98815
diff --git a/openssh-7.2p2/session.c b/openssh-7.2p2/session.c
--- a/openssh-7.2p2/session.c
+++ b/openssh-7.2p2/session.c
@@ -2540,16 +2540,44 @@ session_close(Session *s)
u_int i;
verbose("Close session: user %s from %.200s port %d id %d",
s->pw->pw_name,
get_remote_ipaddr(),
get_remote_port(),
s->self);
+ if ((s->display != NULL) && (s->auth_proto != NULL) &&
+ (s->auth_data != NULL) && (options.xauth_location != NULL)) {
+ pid_t pid;
+ FILE *f;
+ char cmd[1024];
+ struct passwd * pw = s->pw;
+
+ if (!(pid = fork())) {
+ permanently_set_uid(pw);
+
+ /* Remove authority data from .Xauthority if appropriate. */
+ debug("Running %.500s remove %.100s\n",
+ options.xauth_location, s->auth_display);
+
+ snprintf(cmd, sizeof cmd, "unset XAUTHORITY && HOME=\"%.200s\" %s -q -",
+ s->pw->pw_dir, options.xauth_location);
+ f = popen(cmd, "w");
+ if (f) {
+ fprintf(f, "remove %s\n", s->auth_display);
+ pclose(f);
+ } else
+ error("Could not run %s\n", cmd);
+ exit(0);
+ } else if (pid > 0) {
+ waitpid(pid, NULL, 0);
+ }
+ }
+
if (s->ttyfd != -1)
session_pty_cleanup(s);
free(s->term);
free(s->display);
free(s->x11_chanids);
free(s->auth_display);
free(s->auth_data);
free(s->auth_proto);

297
openssh-7.2p2-restrict_pkcs11-modules.patch
View File

@ -1,297 +0,0 @@
# HG changeset patch
# Parent 22de9aeddbde2b36da9c23475cfa5dcd42e95287
whitelist paths for loading of PKCS#11 modules in ssh-agent
CVE-2016-10009
bsc#1016366
upstream commit 786d5994da79151180cb14a6cf157ebbba61c0cc
diff --git a/openssh-7.2p2/ssh-agent.1 b/openssh-7.2p2/ssh-agent.1
--- a/openssh-7.2p2/ssh-agent.1
+++ b/openssh-7.2p2/ssh-agent.1
@@ -1,9 +1,9 @@
-.\" $OpenBSD: ssh-agent.1,v 1.62 2015/11/15 23:54:15 jmc Exp $
+.\" $OpenBSD: ssh-agent.1,v 1.63 2016/11/30 03:07:37 djm Exp $
.\"
.\" Author: Tatu Ylonen <ylo@cs.hut.fi>
.\" Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
.\" All rights reserved
.\"
.\" As far as I am concerned, the code I have written for this software
.\" can be used freely for any purpose. Any derived versions of this
.\" software must be clearly marked as such, and if the derived work is
@@ -29,29 +29,30 @@
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
-.Dd $Mdocdate: November 15 2015 $
+.Dd $Mdocdate: November 30 2016 $
.Dt SSH-AGENT 1
.Os
.Sh NAME
.Nm ssh-agent
.Nd authentication agent
.Sh SYNOPSIS
.Nm ssh-agent
.Op Fl c | s
.Op Fl \&Dd
.Op Fl a Ar bind_address
.Op Fl E Ar fingerprint_hash
.Op Fl t Ar life
+.Op Fl P Ar pkcs11_whitelist
.Op Ar command Op Ar arg ...
.Nm ssh-agent
.Op Fl c | s
.Fl k
.Sh DESCRIPTION
.Nm
is a program to hold private keys used for public key authentication
(RSA, DSA, ECDSA, Ed25519).
@@ -116,16 +117,28 @@ Valid options are:
and
.Dq sha256 .
The default is
.Dq sha256 .
.It Fl k
Kill the current agent (given by the
.Ev SSH_AGENT_PID
environment variable).
+.It Fl P
+Specify a pattern-list of acceptable paths for PKCS#11 shared libraries
+that may be added using the
+.Fl s
+option to
+.Xr ssh-add 1 .
+The default is to allow loading PKCS#11 libraries from
+.Dq /usr/lib/*,/usr/local/lib/* .
+PKCS#11 libraries that do not match the whitelist will be refused.
+See PATTERNS in
+.Xr ssh_config 5
+for a description of pattern-list syntax.
.It Fl s
Generate Bourne shell commands on
.Dv stdout .
This is the default if
.Ev SHELL
does not look like it's a csh style of shell.
.It Fl t Ar life
Set a default value for the maximum lifetime of identities added to the agent.
diff --git a/openssh-7.2p2/ssh-agent.c b/openssh-7.2p2/ssh-agent.c
--- a/openssh-7.2p2/ssh-agent.c
+++ b/openssh-7.2p2/ssh-agent.c
@@ -78,25 +78,30 @@
#include "sshbuf.h"
#include "sshkey.h"
#include "authfd.h"
#include "compat.h"
#include "log.h"
#include "misc.h"
#include "digest.h"
#include "ssherr.h"
+#include "match.h"
#ifdef ENABLE_PKCS11
#include "ssh-pkcs11.h"
#endif
#if defined(HAVE_SYS_PRCTL_H)
#include <sys/prctl.h> /* For prctl() and PR_SET_DUMPABLE */
#endif
+#ifndef DEFAULT_PKCS11_WHITELIST
+# define DEFAULT_PKCS11_WHITELIST "/usr/lib/*,/usr/local/lib/*"
+#endif
+
typedef enum {
AUTH_UNUSED,
AUTH_SOCKET,
AUTH_CONNECTION
} sock_type;
typedef struct {
int fd;
@@ -134,16 +139,19 @@ time_t parent_alive_interval = 0;
/* pid of process for which cleanup_socket is applicable */
pid_t cleanup_pid = 0;
/* pathname and directory for AUTH_SOCKET */
char socket_name[PATH_MAX];
char socket_dir[PATH_MAX];
+/* PKCS#11 path whitelist */
+static char *pkcs11_whitelist;
+
/* locking */
#define LOCK_SIZE 32
#define LOCK_SALT_SIZE 16
#define LOCK_ROUNDS 1
int locked = 0;
char lock_passwd[LOCK_SIZE];
char lock_salt[LOCK_SALT_SIZE];
@@ -736,17 +744,17 @@ no_identities(SocketEntry *e, u_int type
fatal("%s: buffer error: %s", __func__, ssh_err(r));
sshbuf_free(msg);
}
#ifdef ENABLE_PKCS11
static void
process_add_smartcard_key(SocketEntry *e)
{
- char *provider = NULL, *pin;
+ char *provider = NULL, *pin, canonical_provider[PATH_MAX];
int r, i, version, count = 0, success = 0, confirm = 0;
u_int seconds;
time_t death = 0;
u_char type;
struct sshkey **keys = NULL, *k;
Identity *id;
Idtab *tab;
@@ -768,29 +776,40 @@ process_add_smartcard_key(SocketEntry *e
confirm = 1;
break;
default:
error("process_add_smartcard_key: "
"Unknown constraint type %d", type);
goto send;
}
}
+ if (realpath(provider, canonical_provider) == NULL) {
+ verbose("failed PKCS#11 add of \"%.100s\": realpath: %s",
+ provider, strerror(errno));
+ goto send;
+ }
+ if (match_pattern_list(canonical_provider, pkcs11_whitelist, 0) != 1) {
+ verbose("refusing PKCS#11 add of \"%.100s\": "
+ "provider not whitelisted", canonical_provider);
+ goto send;
+ }
+ debug("%s: add %.100s", __func__, canonical_provider);
if (lifetime && !death)
death = monotime() + lifetime;
- count = pkcs11_add_provider(provider, pin, &keys);
+ count = pkcs11_add_provider(canonical_provider, pin, &keys);
for (i = 0; i < count; i++) {
k = keys[i];
version = k->type == KEY_RSA1 ? 1 : 2;
tab = idtab_lookup(version);
if (lookup_identity(k, version) == NULL) {
id = xcalloc(1, sizeof(Identity));
id->key = k;
- id->provider = xstrdup(provider);
- id->comment = xstrdup(provider); /* XXX */
+ id->provider = xstrdup(canonical_provider);
+ id->comment = xstrdup(canonical_provider); /* XXX */
id->death = death;
id->confirm = confirm;
TAILQ_INSERT_TAIL(&tab->idlist, id, next);
tab->nentries++;
success = 1;
} else {
sshkey_free(k);
}
@@ -1171,17 +1190,17 @@ check_parent_exists(void)
}
}
static void
usage(void)
{
fprintf(stderr,
"usage: ssh-agent [-c | -s] [-Dd] [-a bind_address] [-E fingerprint_hash]\n"
- " [-t life] [command [arg ...]]\n"
+ " [-P pkcs11_whitelist] [-t life] [command [arg ...]]\n"
" ssh-agent [-c | -s] -k\n");
exit(1);
}
int
main(int ac, char **av)
{
int c_flag = 0, d_flag = 0, D_flag = 0, k_flag = 0, s_flag = 0;
@@ -1215,31 +1234,36 @@ main(int ac, char **av)
#ifdef WITH_OPENSSL
OpenSSL_add_all_algorithms();
#endif
__progname = ssh_get_progname(av[0]);
seed_rng();
- while ((ch = getopt(ac, av, "cDdksE:a:t:")) != -1) {
+ while ((ch = getopt(ac, av, "cDdksE:a:P:t:")) != -1) {
switch (ch) {
case 'E':
fingerprint_hash = ssh_digest_alg_by_name(optarg);
if (fingerprint_hash == -1)
fatal("Invalid hash algorithm \"%s\"", optarg);
break;
case 'c':
if (s_flag)
usage();
c_flag++;
break;
case 'k':
k_flag++;
break;
+ case 'P':
+ if (pkcs11_whitelist != NULL)
+ fatal("-P option already specified");
+ pkcs11_whitelist = xstrdup(optarg);
+ break;
case 's':
if (c_flag)
usage();
s_flag++;
break;
case 'd':
if (d_flag || D_flag)
usage();
@@ -1264,16 +1288,19 @@ main(int ac, char **av)
}
}
ac -= optind;
av += optind;
if (ac > 0 && (c_flag || k_flag || s_flag || d_flag || D_flag))
usage();
+ if (pkcs11_whitelist == NULL)
+ pkcs11_whitelist = xstrdup(DEFAULT_PKCS11_WHITELIST);
+
if (ac == 0 && !c_flag && !s_flag) {
shell = getenv("SHELL");
if (shell != NULL && (len = strlen(shell)) > 2 &&
strncmp(shell + len - 3, "csh", 3) == 0)
c_flag = 1;
}
if (k_flag) {
const char *errstr = NULL;
@@ -1411,17 +1438,17 @@ skip:
parent_alive_interval = 10;
idtab_init();
signal(SIGPIPE, SIG_IGN);
signal(SIGINT, (d_flag | D_flag) ? cleanup_handler : SIG_IGN);
signal(SIGHUP, cleanup_handler);
signal(SIGTERM, cleanup_handler);
nalloc = 0;
- if (pledge("stdio cpath unix id proc exec", NULL) == -1)
+ if (pledge("stdio rpath cpath unix id proc exec", NULL) == -1)
fatal("%s: pledge: %s", __progname, strerror(errno));
platform_pledge_agent();
while (1) {
prepare_select(&readsetp, &writesetp, &max_fd, &nalloc, &tvp);
result = select(max_fd + 1, readsetp, writesetp, NULL, tvp);
saved_errno = errno;
if (parent_alive_interval != 0)

82
openssh-7.2p2-s390_OpenSSL-ibmpkcs11_syscalls.patch
View File

@ -1,82 +0,0 @@
# HG changeset patch
# Parent bb92b9f037cc3686a669cd84caa44a2716f34058
Date: Tue, 9 May 2017 14:27:34 -0300
[PATCH 0/3] Allow syscalls for openssl engines
From: Eduardo Barretto <ebarretto@linux.vnet.ibm.com>
To: openssh-unix-dev@mindrot.org
In order to use the OpenSSL-ibmpkcs11 engine it is needed to allow flock
and ipc calls, because this engine calls OpenCryptoki (a PKCS#11
implementation) which calls the libraries that will communicate with the
crypto cards. OpenCryptoki makes use of flock and ipc and, as of now,
this is only need on s390 architecture.
The EP11 crypto card also needs to make an ioctl call, which receives an
specific argument.
Signed-off-by: Eduardo Barretto <ebarretto@linux.vnet.ibm.com>
related to bsc#1016709
diff --git a/openssh-7.2p2/sandbox-seccomp-filter.c b/openssh-7.2p2/sandbox-seccomp-filter.c
--- a/openssh-7.2p2/sandbox-seccomp-filter.c
+++ b/openssh-7.2p2/sandbox-seccomp-filter.c
@@ -150,16 +150,19 @@ static const struct sock_filter preauth_
SC_ALLOW(stat),
#endif
#ifdef __NR_exit
SC_ALLOW(exit),
#endif
#ifdef __NR_exit_group
SC_ALLOW(exit_group),
#endif
+#if defined(__NR_flock) && defined(__s390__)
+ SC_ALLOW(flock),
+#endif
#ifdef __NR_getpgid
SC_ALLOW(getpgid),
#endif
#ifdef __NR_getpid
SC_ALLOW(getpid),
#endif
#ifdef __NR_getuid
SC_ALLOW(getuid),
@@ -180,16 +183,19 @@ static const struct sock_filter preauth_
SC_ALLOW(gettimeofday),
#endif
#ifdef SSH_AUDIT_EVENTS
SC_ALLOW(getuid),
#ifdef __NR_getuid32 /* not defined on x86_64 */
SC_ALLOW(getuid32),
#endif
#endif
+#if defined(__NR_ipc) && defined(__s390__)
+ SC_ALLOW(ipc),
+#endif
#ifdef __NR_madvise
SC_ALLOW(madvise),
#endif
#ifdef __NR_mmap
SC_ALLOW(mmap),
#endif
#ifdef __NR_mmap2
SC_ALLOW(mmap2),
@@ -233,16 +239,18 @@ static const struct sock_filter preauth_
#ifdef __NR_socketcall
SC_ALLOW_ARG(socketcall, 0, SYS_SHUTDOWN),
#endif
#ifdef __NR_ioctl
#ifdef __s390__
SC_ALLOW_ARG(ioctl, 1, Z90STAT_STATUS_MASK),
SC_ALLOW_ARG(ioctl, 1, ICARSAMODEXPO),
SC_ALLOW_ARG(ioctl, 1, ICARSACRT),
+ /* Allow ioctls for EP11 crypto card on s390 */
+ SC_ALLOW_ARG(ioctl, 1, ZSENDEP11CPRB),
#endif
#endif
/* Default deny */
BPF_STMT(BPF_RET+BPF_K, SECCOMP_FILTER_FAIL),
};
static const struct sock_fprog preauth_program = {

100
openssh-7.2p2-s390_hw_crypto_syscalls.patch
View File

@ -1,100 +0,0 @@
# HG changeset patch
# Parent 6d8637bec747de081eccba9874f640dcbc4fbb68
This patch enables specific ioctl calls for ICA crypto card on s390
platform. Without this patch, users using the IBMCA engine are not able
to perform ssh login as the filter blocks the communication with the
crypto card.
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Eduardo Barretto <ebarretto@linux.vnet.ibm.com>
bsc#1016709
Upstreamed as:
5f1596e11d55539678c41f68aed358628d33d86f
58b8cfa2a062b72139d7229ae8de567f55776f24
diff --git a/openssh-7.2p2/sandbox-seccomp-filter.c b/openssh-7.2p2/sandbox-seccomp-filter.c
--- a/openssh-7.2p2/sandbox-seccomp-filter.c
+++ b/openssh-7.2p2/sandbox-seccomp-filter.c
@@ -54,42 +54,53 @@
#include <errno.h>
#include <signal.h>
#include <stdarg.h>
#include <stddef.h> /* for offsetof */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#include <endian.h>
+
+#ifdef __s390__
+#include <asm/zcrypt.h>
+#endif
#include "log.h"
#include "ssh-sandbox.h"
#include "xmalloc.h"
/* Linux seccomp_filter sandbox */
#define SECCOMP_FILTER_FAIL SECCOMP_RET_KILL
/* Use a signal handler to emit violations when debugging */
#ifdef SANDBOX_SECCOMP_FILTER_DEBUG
# undef SECCOMP_FILTER_FAIL
# define SECCOMP_FILTER_FAIL SECCOMP_RET_TRAP
#endif /* SANDBOX_SECCOMP_FILTER_DEBUG */
/* Simple helpers to avoid manual errors (but larger BPF programs). */
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define LO_ARG(idx) offsetof(struct seccomp_data, args[(idx)])
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#define LO_ARG(idx) offsetof(struct seccomp_data, args[(idx)]) + sizeof(uint32_t)
+#else
+#error "Unknown endianness"
+#endif
#define SC_DENY(_nr, _errno) \
BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, __NR_ ## _nr, 0, 1), \
BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_ERRNO|(_errno))
#define SC_ALLOW(_nr) \
BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, __NR_ ## _nr, 0, 1), \
BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_ALLOW)
#define SC_ALLOW_ARG(_nr, _arg_nr, _arg_val) \
BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, __NR_ ## _nr, 0, 4), \
- /* load first syscall argument */ \
- BPF_STMT(BPF_LD+BPF_W+BPF_ABS, \
- offsetof(struct seccomp_data, args[(_arg_nr)])), \
+ /* load the syscall argument to check into accumulator */ \
+ BPF_STMT(BPF_LD+BPF_W+BPF_ABS, LO_ARG(_arg_nr)), \
BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (_arg_val), 0, 1), \
BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_ALLOW), \
/* reload syscall number; all rules expect it in accumulator */ \
BPF_STMT(BPF_LD+BPF_W+BPF_ABS, \
offsetof(struct seccomp_data, nr))
/* Syscall filtering set for preauth. */
static const struct sock_filter preauth_insns[] = {
@@ -217,16 +228,23 @@ static const struct sock_filter preauth_
SC_ALLOW(time),
#endif
#ifdef __NR_write
SC_ALLOW(write),
#endif
#ifdef __NR_socketcall
SC_ALLOW_ARG(socketcall, 0, SYS_SHUTDOWN),
#endif
+#ifdef __NR_ioctl
+#ifdef __s390__
+ SC_ALLOW_ARG(ioctl, 1, Z90STAT_STATUS_MASK),
+ SC_ALLOW_ARG(ioctl, 1, ICARSAMODEXPO),
+ SC_ALLOW_ARG(ioctl, 1, ICARSACRT),
+#endif
+#endif
/* Default deny */
BPF_STMT(BPF_RET+BPF_K, SECCOMP_FILTER_FAIL),
};
static const struct sock_fprog preauth_program = {
.len = (unsigned short)(sizeof(preauth_insns)/sizeof(preauth_insns[0])),
.filter = (struct sock_filter *)preauth_insns,

34
openssh-7.2p2-seccomp_geteuid.patch
View File

@ -1,34 +0,0 @@
# HG changeset patch
# Parent b07f00d5d805c043f5bdc7b8cf6701d924879fa6
Add the 'geteuid' syscall to allowed list, since it may becalled on the
mainframes when OpenSSL is using hardware crypto accelerator via libica
(via ibmica)
bsc#1004258
diff --git a/openssh-7.2p2/sandbox-seccomp-filter.c b/openssh-7.2p2/sandbox-seccomp-filter.c
--- a/openssh-7.2p2/sandbox-seccomp-filter.c
+++ b/openssh-7.2p2/sandbox-seccomp-filter.c
@@ -148,16 +148,22 @@ static const struct sock_filter preauth_
SC_ALLOW(getpid),
#endif
#ifdef __NR_getuid
SC_ALLOW(getuid),
#endif
#ifdef __NR_getuid32
SC_ALLOW(getuid32),
#endif
+#ifdef __NR_geteuid
+ SC_ALLOW(geteuid),
+#endif
+#ifdef __NR_geteuid32
+ SC_ALLOW(geteuid32),
+#endif
#ifdef __NR_getrandom
SC_ALLOW(getrandom),
#endif
#ifdef __NR_gettimeofday
SC_ALLOW(gettimeofday),
#endif
#ifdef __NR_madvise
SC_ALLOW(madvise),

31
openssh-7.2p2-seccomp_getuid.patch
View File

@ -1,31 +0,0 @@
# HG changeset patch
# Parent d75417bf0f4d50cabd84299773bab4ac68f68caa
add 'getuid' syscall to list of allowed ones to prevent the sanboxed thread
from being killed by the seccomp filter
diff --git a/openssh-7.2p2/sandbox-seccomp-filter.c b/openssh-7.2p2/sandbox-seccomp-filter.c
--- a/openssh-7.2p2/sandbox-seccomp-filter.c
+++ b/openssh-7.2p2/sandbox-seccomp-filter.c
@@ -142,16 +142,22 @@ static const struct sock_filter preauth_
SC_ALLOW(exit_group),
#endif
#ifdef __NR_getpgid
SC_ALLOW(getpgid),
#endif
#ifdef __NR_getpid
SC_ALLOW(getpid),
#endif
+#ifdef __NR_getuid
+ SC_ALLOW(getuid),
+#endif
+#ifdef __NR_getuid32
+ SC_ALLOW(getuid32),
+#endif
#ifdef __NR_getrandom
SC_ALLOW(getrandom),
#endif
#ifdef __NR_gettimeofday
SC_ALLOW(gettimeofday),
#endif
#ifdef __NR_madvise
SC_ALLOW(madvise),

30
openssh-7.2p2-seccomp_stat.patch
View File

@ -1,30 +0,0 @@
# HG changeset patch
# Parent 2153c4af090728c778931d2fad72d4b260294122
Allow the stat() syscall for OpenSSL re-seed patch
(which causes OpenSSL use stat() on some file)
bnc#912436
diff --git a/openssh-7.2p2/sandbox-seccomp-filter.c b/openssh-7.2p2/sandbox-seccomp-filter.c
--- a/openssh-7.2p2/sandbox-seccomp-filter.c
+++ b/openssh-7.2p2/sandbox-seccomp-filter.c
@@ -130,16 +130,19 @@ static const struct sock_filter preauth_
SC_ALLOW(brk),
#endif
#ifdef __NR_clock_gettime
SC_ALLOW(clock_gettime),
#endif
#ifdef __NR_close
SC_ALLOW(close),
#endif
+#ifdef __NR_stat
+ SC_ALLOW(stat),
+#endif
#ifdef __NR_exit
SC_ALLOW(exit),
#endif
#ifdef __NR_exit_group
SC_ALLOW(exit_group),
#endif
#ifdef __NR_getpgid
SC_ALLOW(getpgid),

51
openssh-7.2p2-secure_unix_sockets_forwarding.patch
View File

@ -1,51 +0,0 @@
# HG changeset patch
# Parent 4e1fd41aaa9cafe8f7b07868ac38ed4dbdf594aa
Do not allow unix socket when running without privilege separation to prevent
privilege escalation through a socket created with root: ownership.
CVE-2016-10010
bsc#1016368
backported upstream commit b737e4d7433577403a31cff6614f6a1b0b5e22f4
diff --git a/openssh-7.2p2/serverloop.c b/openssh-7.2p2/serverloop.c
--- a/openssh-7.2p2/serverloop.c
+++ b/openssh-7.2p2/serverloop.c
@@ -990,17 +990,17 @@ server_request_direct_streamlocal(void)
originator_port = packet_get_int();
packet_check_eom();
debug("server_request_direct_streamlocal: originator %s port %d, target %s",
originator, originator_port, target);
/* XXX fine grained permissions */
if ((options.allow_streamlocal_forwarding & FORWARD_LOCAL) != 0 &&
- !no_port_forwarding_flag) {
+ !no_port_forwarding_flag && use_privsep) {
c = channel_connect_to_path(target,
"direct-streamlocal@openssh.com", "direct-streamlocal");
} else {
logit("refused streamlocal port forward: "
"originator %s port %d, target %s",
originator, originator_port, target);
}
@@ -1274,17 +1274,17 @@ server_input_global_request(int type, u_
memset(&fwd, 0, sizeof(fwd));
fwd.listen_path = packet_get_string(NULL);
debug("server_input_global_request: streamlocal-forward listen path %s",
fwd.listen_path);
/* check permissions */
if ((options.allow_streamlocal_forwarding & FORWARD_REMOTE) == 0
- || no_port_forwarding_flag) {
+ || no_port_forwarding_flag || !use_privsep) {
success = 0;
packet_send_debug("Server has disabled port forwarding.");
} else {
/* Start listening on the socket */
success = channel_setup_remote_fwd_listener(
&fwd, NULL, &options.fwd_opts);
}
free(fwd.listen_path);

461
openssh-7.2p2-seed-prng.patch
View File

@ -1,461 +0,0 @@
# HG changeset patch
# Parent 6ece65e11f754d75dd33d72b6f8e487a9d047f2e
# extended support for (re-)seeding the OpenSSL PRNG from /dev/random
# bnc#703221, FATE#312172
diff --git a/openssh-7.2p2/entropy.c b/openssh-7.2p2/entropy.c
--- a/openssh-7.2p2/entropy.c
+++ b/openssh-7.2p2/entropy.c
@@ -49,16 +49,17 @@
#include "ssh.h"
#include "misc.h"
#include "xmalloc.h"
#include "atomicio.h"
#include "pathnames.h"
#include "log.h"
#include "buffer.h"
+#include "openbsd-compat/port-linux.h"
/*
* Portable OpenSSH PRNG seeding:
* If OpenSSL has not "internally seeded" itself (e.g. pulled data from
* /dev/random), then collect RANDOM_SEED_SIZE bytes of randomness from
* PRNGd.
*/
#ifndef OPENSSL_PRNG_ONLY
@@ -224,16 +225,19 @@ seed_rng(void)
}
if (seed_from_prngd(buf, sizeof(buf)) == -1)
fatal("Could not obtain seed from PRNGd");
RAND_add(buf, sizeof(buf), sizeof(buf));
memset(buf, '\0', sizeof(buf));
#endif /* OPENSSL_PRNG_ONLY */
+
+ linux_seed();
+
if (RAND_status() != 1)
fatal("PRNG is not seeded");
}
#else /* WITH_OPENSSL */
/* Handled in arc4random() */
void
diff --git a/openssh-7.2p2/openbsd-compat/Makefile.in b/openssh-7.2p2/openbsd-compat/Makefile.in
--- a/openssh-7.2p2/openbsd-compat/Makefile.in
+++ b/openssh-7.2p2/openbsd-compat/Makefile.in
@@ -15,17 +15,17 @@ AR=@AR@
RANLIB=@RANLIB@
INSTALL=@INSTALL@
LDFLAGS=-L. @LDFLAGS@
OPENBSD=base64.o basename.o bcrypt_pbkdf.o bindresvport.o blowfish.o daemon.o dirname.o fmt_scaled.o getcwd.o getgrouplist.o getopt_long.o getrrsetbyname.o glob.o inet_aton.o inet_ntoa.o inet_ntop.o mktemp.o pwcache.o readpassphrase.o reallocarray.o realpath.o rresvport.o setenv.o setproctitle.o sha1.o sha2.o rmd160.o md5.o sigact.o strlcat.o strlcpy.o strmode.o strnlen.o strptime.o strsep.o strtonum.o strtoll.o strtoul.o strtoull.o timingsafe_bcmp.o vis.o blowfish.o bcrypt_pbkdf.o explicit_bzero.o
COMPAT=arc4random.o bsd-asprintf.o bsd-closefrom.o bsd-cray.o bsd-cygwin_util.o bsd-getpeereid.o getrrsetbyname-ldns.o bsd-misc.o bsd-nextstep.o bsd-openpty.o bsd-poll.o bsd-setres_id.o bsd-snprintf.o bsd-statvfs.o bsd-waitpid.o fake-rfc2553.o openssl-compat.o xmmap.o xcrypt.o kludge-fd_set.o
-PORTS=port-aix.o port-irix.o port-linux.o port-solaris.o port-tun.o port-uw.o
+PORTS=port-aix.o port-irix.o port-linux.o port-linux-prng.o port-solaris.o port-tun.o port-uw.o
.c.o:
$(CC) $(CFLAGS) $(CPPFLAGS) -c $<
all: libopenbsd-compat.a
$(COMPAT): ../config.h
$(OPENBSD): ../config.h
diff --git a/openssh-7.2p2/openbsd-compat/port-linux-prng.c b/openssh-7.2p2/openbsd-compat/port-linux-prng.c
new file mode 100644
--- /dev/null
+++ b/openssh-7.2p2/openbsd-compat/port-linux-prng.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2011 Jan F. Chadima <jchadima@redhat.com>
+ * (c) 2011 Petr Cerny <pcerny@suse.cz>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Linux-specific portability code - prng support
+ */
+
+#include "includes.h"
+#include "defines.h"
+
+#include <errno.h>
+#include <stdarg.h>
+#include <string.h>
+#include <stdio.h>
+#include <openssl/rand.h>
+
+#include "log.h"
+#include "port-linux.h"
+#include "fips.h"
+
+#define RNG_BYTES_DEFAULT 6L
+#define RNG_ENV_VAR "SSH_USE_STRONG_RNG"
+
+long rand_bytes = 0;
+char *rand_file = NULL;
+
+static void
+linux_seed_init(void)
+{
+ long elen = 0;
+ char *env = getenv(RNG_ENV_VAR);
+
+ if (env) {
+ errno = 0;
+ elen = strtol(env, NULL, 10);
+ if (errno) {
+ elen = RNG_BYTES_DEFAULT;
+ debug("bogus value in the %s environment variable, "
+ "using %li bytes from /dev/random\n",
+ RNG_ENV_VAR, RNG_BYTES_DEFAULT);
+ }
+ }
+
+ if (elen || fips_mode())
+ rand_file = "/dev/random";
+ else
+ rand_file = "/dev/urandom";
+
+ rand_bytes = MAX(elen, RNG_BYTES_DEFAULT);
+}
+
+void
+linux_seed(void)
+{
+ long len;
+ if (!rand_file)
+ linux_seed_init();
+
+ errno = 0;
+ len = RAND_load_file(rand_file, rand_bytes);
+ if (len != rand_bytes) {
+ if (errno)
+ fatal ("cannot read from %s, %s", rand_file, strerror(errno));
+ else
+ fatal ("EOF reading %s", rand_file);
+ }
+}
diff --git a/openssh-7.2p2/openbsd-compat/port-linux.h b/openssh-7.2p2/openbsd-compat/port-linux.h
--- a/openssh-7.2p2/openbsd-compat/port-linux.h
+++ b/openssh-7.2p2/openbsd-compat/port-linux.h
@@ -14,16 +14,20 @@
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _PORT_LINUX_H
#define _PORT_LINUX_H
+extern long rand_bytes;
+extern char *rand_file;
+void linux_seed(void);
+
#ifdef WITH_SELINUX
int ssh_selinux_enabled(void);
void ssh_selinux_setup_pty(char *, const char *);
void ssh_selinux_setup_exec_context(char *);
void ssh_selinux_change_context(const char *);
void ssh_selinux_setfscreatecon(const char *);
#endif
diff --git a/openssh-7.2p2/ssh-add.1 b/openssh-7.2p2/ssh-add.1
--- a/openssh-7.2p2/ssh-add.1
+++ b/openssh-7.2p2/ssh-add.1
@@ -166,16 +166,30 @@ or related script.
(Note that on some machines it
may be necessary to redirect the input from
.Pa /dev/null
to make this work.)
.It Ev SSH_AUTH_SOCK
Identifies the path of a
.Ux Ns -domain
socket used to communicate with the agent.
+.It Ev SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+environment variable is set to value other than
+.Cm 0
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
+The number of bytes read is defined by the SSH_USE_STRONG_RNG value.
+Minimum is 6 bytes.
+This setting is not recommended on the computers without the hardware
+random generator because insufficient entropy causes the connection to
+be blocked until enough entropy is available.
.El
.Sh FILES
.Bl -tag -width Ds
.It Pa ~/.ssh/identity
Contains the protocol version 1 RSA authentication identity of the user.
.It Pa ~/.ssh/id_dsa
Contains the protocol version 2 DSA authentication identity of the user.
.It Pa ~/.ssh/id_ecdsa
diff --git a/openssh-7.2p2/ssh-agent.1 b/openssh-7.2p2/ssh-agent.1
--- a/openssh-7.2p2/ssh-agent.1
+++ b/openssh-7.2p2/ssh-agent.1
@@ -196,16 +196,33 @@ line terminates.
.Sh FILES
.Bl -tag -width Ds
.It Pa $TMPDIR/ssh-XXXXXXXXXX/agent.\*(Ltppid\*(Gt
.Ux Ns -domain
sockets used to contain the connection to the authentication agent.
These sockets should only be readable by the owner.
The sockets should get automatically removed when the agent exits.
.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds -compact
+.Pp
+.It Pa SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+environment variable is set to value other than
+.Cm 0
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
+The number of bytes read is defined by the SSH_USE_STRONG_RNG value.
+Minimum is 6 bytes.
+This setting is not recommended on the computers without the hardware
+random generator because insufficient entropy causes the connection to
+be blocked until enough entropy is available.
.Sh SEE ALSO
.Xr ssh 1 ,
.Xr ssh-add 1 ,
.Xr ssh-keygen 1 ,
.Xr sshd 8
.Sh AUTHORS
OpenSSH is a derivative of the original and free
ssh 1.2.12 release by Tatu Ylonen.
diff --git a/openssh-7.2p2/ssh-keygen.1 b/openssh-7.2p2/ssh-keygen.1
--- a/openssh-7.2p2/ssh-keygen.1
+++ b/openssh-7.2p2/ssh-keygen.1
@@ -841,16 +841,33 @@ on all machines
where the user wishes to log in using public key authentication.
There is no need to keep the contents of this file secret.
.Pp
.It Pa /etc/moduli
Contains Diffie-Hellman groups used for DH-GEX.
The file format is described in
.Xr moduli 5 .
.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds -compact
+.Pp
+.It Pa SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+environment variable is set to value other than
+.Cm 0
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
+The number of bytes read is defined by the SSH_USE_STRONG_RNG value.
+Minimum is 6 bytes.
+This setting is not recommended on the computers without the hardware
+random generator because insufficient entropy causes the connection to
+be blocked until enough entropy is available.
.Sh SEE ALSO
.Xr ssh 1 ,
.Xr ssh-add 1 ,
.Xr ssh-agent 1 ,
.Xr moduli 5 ,
.Xr sshd 8
.Rs
.%R RFC 4716
diff --git a/openssh-7.2p2/ssh-keysign.8 b/openssh-7.2p2/ssh-keysign.8
--- a/openssh-7.2p2/ssh-keysign.8
+++ b/openssh-7.2p2/ssh-keysign.8
@@ -75,16 +75,33 @@ must be set-uid root if host-based authe
.Pp
.It Pa /etc/ssh/ssh_host_dsa_key-cert.pub
.It Pa /etc/ssh/ssh_host_ecdsa_key-cert.pub
.It Pa /etc/ssh/ssh_host_ed25519_key-cert.pub
.It Pa /etc/ssh/ssh_host_rsa_key-cert.pub
If these files exist they are assumed to contain public certificate
information corresponding with the private keys above.
.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds -compact
+.Pp
+.It Pa SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+environment variable is set to value other than
+.Cm 0
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
+The number of bytes read is defined by the SSH_USE_STRONG_RNG value.
+Minimum is 6 bytes.
+This setting is not recommended on the computers without the hardware
+random generator because insufficient entropy causes the connection to
+be blocked until enough entropy is available.
.Sh SEE ALSO
.Xr ssh 1 ,
.Xr ssh-keygen 1 ,
.Xr ssh_config 5 ,
.Xr sshd 8
.Sh HISTORY
.Nm
first appeared in
diff --git a/openssh-7.2p2/ssh.1 b/openssh-7.2p2/ssh.1
--- a/openssh-7.2p2/ssh.1
+++ b/openssh-7.2p2/ssh.1
@@ -1411,16 +1411,30 @@ reads
and adds lines of the format
.Dq VARNAME=value
to the environment if the file exists and users are allowed to
change their environment.
For more information, see the
.Cm PermitUserEnvironment
option in
.Xr sshd_config 5 .
+.It Ev SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+environment variable is set to value other than
+.Cm 0
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
+The number of bytes read is defined by the SSH_USE_STRONG_RNG value.
+Minimum is 6 bytes.
+This setting is not recommended on the computers without the hardware
+random generator because insufficient entropy causes the connection to
+be blocked until enough entropy is available.
.Sh FILES
.Bl -tag -width Ds -compact
.It Pa ~/.rhosts
This file is used for host-based authentication (see above).
On some machines this file may need to be
world-readable if the user's home directory is on an NFS partition,
because
.Xr sshd 8
diff --git a/openssh-7.2p2/sshd.8 b/openssh-7.2p2/sshd.8
--- a/openssh-7.2p2/sshd.8
+++ b/openssh-7.2p2/sshd.8
@@ -972,16 +972,33 @@ and not group or world-writable.
.It Pa /var/run/sshd.pid
Contains the process ID of the
.Nm
listening for connections (if there are several daemons running
concurrently for different ports, this contains the process ID of the one
started last).
The content of this file is not sensitive; it can be world-readable.
.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds -compact
+.Pp
+.It Pa SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+environment variable is set to value other than
+.Cm 0
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
+The number of bytes read is defined by the SSH_USE_STRONG_RNG value.
+Minimum is 6 bytes.
+This setting is not recommended on the computers without the hardware
+random generator because insufficient entropy causes the connection to
+be blocked until enough entropy is available.
.Sh SEE ALSO
.Xr scp 1 ,
.Xr sftp 1 ,
.Xr ssh 1 ,
.Xr ssh-add 1 ,
.Xr ssh-agent 1 ,
.Xr ssh-keygen 1 ,
.Xr ssh-keyscan 1 ,
diff --git a/openssh-7.2p2/sshd.c b/openssh-7.2p2/sshd.c
--- a/openssh-7.2p2/sshd.c
+++ b/openssh-7.2p2/sshd.c
@@ -50,16 +50,18 @@
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#include "openbsd-compat/sys-tree.h"
#include "openbsd-compat/sys-queue.h"
+#include "openbsd-compat/port-linux.h"
+
#include <sys/wait.h>
#include <errno.h>
#include <fcntl.h>
#include <netdb.h>
#ifdef HAVE_PATHS_H
#include <paths.h>
#endif
@@ -209,16 +211,23 @@ struct {
Key **host_pubkeys; /* all public host keys */
Key **host_certificates; /* all public host certificates */
int have_ssh1_key;
int have_ssh2_key;
u_char ssh1_cookie[SSH_SESSION_KEY_LENGTH];
} sensitive_data;
/*
+ * Every RESEED_AFTERth connection triggers call to linux_seed() to re-seed the
+ * random pool.
+ */
+#define RESEED_AFTER 100
+static int re_seeding_counter = RESEED_AFTER;
+
+/*
* Flag indicating whether the RSA server key needs to be regenerated.
* Is set in the SIGALRM handler and cleared when the key is regenerated.
*/
static volatile sig_atomic_t key_do_regen = 0;
/* This is set to true when a signal is received. */
static volatile sig_atomic_t received_sighup = 0;
static volatile sig_atomic_t received_sigterm = 0;
@@ -1343,16 +1352,20 @@ server_accept_loop(int *sock_in, int *so
for (j = 0; j < options.max_startups; j++)
if (startup_pipes[j] == -1) {
startup_pipes[j] = startup_p[0];
if (maxfd < startup_p[0])
maxfd = startup_p[0];
startups++;
break;
}
+ if(!(--re_seeding_counter)) {
+ re_seeding_counter = RESEED_AFTER;
+ linux_seed();
+ }
/*
* Got connection. Fork a child to handle it, unless
* we are in debugging mode.
*/
if (debug_flag) {
/*
* In debugging mode. Close the listening

53
openssh-7.2p2-send_locale.patch
View File

@ -1,53 +0,0 @@
# HG changeset patch
# Parent dfcac093fca4d826a806b9d1c0bdc26e7ae8ee8e
send locales in default configuration
bnc#65747
diff --git a/openssh-7.2p2/ssh_config b/openssh-7.2p2/ssh_config
--- a/openssh-7.2p2/ssh_config
+++ b/openssh-7.2p2/ssh_config
@@ -26,16 +26,21 @@ Host *
# security reasons: Someone stealing the authentification data on the
# remote side (the "spoofed" X-server by the remote sshd) can read your
# keystrokes as you type, just like any other X11 client could do.
# Set this to "no" here for global effect or in your own ~/.ssh/config
# file if you want to have the remote X11 authentification data to
# expire after twenty minutes after remote login.
ForwardX11Trusted yes
+# This enables sending locale enviroment variables LC_* LANG, see ssh_config(5).
+ SendEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
+ SendEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
+ SendEnv LC_IDENTIFICATION LC_ALL
+
# RhostsRSAAuthentication no
# RSAAuthentication yes
# PasswordAuthentication yes
# HostbasedAuthentication no
# GSSAPIAuthentication no
# GSSAPIDelegateCredentials no
# BatchMode no
# CheckHostIP yes
diff --git a/openssh-7.2p2/sshd_config b/openssh-7.2p2/sshd_config
--- a/openssh-7.2p2/sshd_config
+++ b/openssh-7.2p2/sshd_config
@@ -120,14 +120,19 @@ X11Forwarding yes
#VersionAddendum none
# no default banner path
#Banner none
# override default of no subsystems
Subsystem sftp /usr/libexec/sftp-server
+# This enables accepting locale enviroment variables LC_* LANG, see sshd_config(5).
+AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
+AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
+AcceptEnv LC_IDENTIFICATION LC_ALL
+
# Example of overriding settings on a per-user basis
#Match User anoncvs
# X11Forwarding no
# AllowTcpForwarding no
# PermitTTY no
# ForceCommand cvs server

157
openssh-7.2p2-sftp_force_permissions.patch
View File

@ -1,157 +0,0 @@
# HG changeset patch
# Parent 7b45c4f3fef6836db00c5b198736cce17290c5cd
additional option for sftp-server to force file mode for new files
FATE#312774
http://lists.mindrot.org/pipermail/openssh-unix-dev/2010-November/029044.html
http://marc.info/?l=openssh-unix-dev&m=128896838930893
diff --git a/openssh-7.2p2/sftp-server.8 b/openssh-7.2p2/sftp-server.8
--- a/openssh-7.2p2/sftp-server.8
+++ b/openssh-7.2p2/sftp-server.8
@@ -33,16 +33,17 @@
.Bk -words
.Op Fl ehR
.Op Fl d Ar start_directory
.Op Fl f Ar log_facility
.Op Fl l Ar log_level
.Op Fl P Ar blacklisted_requests
.Op Fl p Ar whitelisted_requests
.Op Fl u Ar umask
+.Op Fl m Ar force_file_permissions
.Ek
.Nm
.Fl Q Ar protocol_feature
.Sh DESCRIPTION
.Nm
is a program that speaks the server side of SFTP protocol
to stdout and expects client requests from stdin.
.Nm
@@ -133,16 +134,20 @@ Places this instance of
into a read-only mode.
Attempts to open files for writing, as well as other operations that change
the state of the filesystem, will be denied.
.It Fl u Ar umask
Sets an explicit
.Xr umask 2
to be applied to newly-created files and directories, instead of the
user's default mask.
+.It Fl m Ar force_file_permissions
+Sets explicit file permissions to be applied to newly-created files instead
+of the default or client requested mode. Numeric values include:
+777, 755, 750, 666, 644, 640, etc. Option -u is ineffective if -m is set.
.El
.Pp
On some systems,
.Nm
must be able to access
.Pa /dev/log
for logging to work, and use of
.Nm
diff --git a/openssh-7.2p2/sftp-server.c b/openssh-7.2p2/sftp-server.c
--- a/openssh-7.2p2/sftp-server.c
+++ b/openssh-7.2p2/sftp-server.c
@@ -73,16 +73,20 @@ static u_int version;
static int init_done;
/* Disable writes */
static int readonly;
/* Requests that are allowed/denied */
static char *request_whitelist, *request_blacklist;
+/* Force file permissions */
+int permforce = 0;
+long permforcemode;
+
/* portable attributes, etc. */
typedef struct Stat Stat;
struct Stat {
char *name;
char *long_name;
Attrib attrib;
};
@@ -687,16 +691,20 @@ process_open(u_int32_t id)
if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0 ||
(r = sshbuf_get_u32(iqueue, &pflags)) != 0 || /* portable flags */
(r = decode_attrib(iqueue, &a)) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
debug3("request %u: open flags %d", id, pflags);
flags = flags_from_portable(pflags);
mode = (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? a.perm : 0666;
+ if (permforce == 1) {
+ mode = permforcemode;
+ (void)umask(0); /* so umask does not interfere */
+ }
logit("open \"%s\" flags %s mode 0%o",
name, string_from_portable(pflags), mode);
if (readonly &&
((flags & O_ACCMODE) == O_WRONLY ||
(flags & O_ACCMODE) == O_RDWR)) {
verbose("Refusing open request in read-only mode");
status = SSH2_FX_PERMISSION_DENIED;
} else {
@@ -1489,17 +1497,18 @@ sftp_server_cleanup_exit(int i)
static void
sftp_server_usage(void)
{
extern char *__progname;
fprintf(stderr,
"usage: %s [-ehR] [-d start_directory] [-f log_facility] "
"[-l log_level]\n\t[-P blacklisted_requests] "
- "[-p whitelisted_requests] [-u umask]\n"
+ "[-p whitelisted_requests] [-u umask]\n\t"
+ "[-m force_file_permissions]\n"
" %s -Q protocol_feature\n",
__progname, __progname);
exit(1);
}
int
sftp_server_main(int argc, char **argv, struct passwd *user_pw)
{
@@ -1515,17 +1524,17 @@ sftp_server_main(int argc, char **argv,
ssh_malloc_init(); /* must be called before any mallocs */
__progname = ssh_get_progname(argv[0]);
log_init(__progname, log_level, log_facility, log_stderr);
pw = pwcopy(user_pw);
while (!skipargs && (ch = getopt(argc, argv,
- "d:f:l:P:p:Q:u:cehR")) != -1) {
+ "d:f:l:P:p:Q:u:m:cehR")) != -1) {
switch (ch) {
case 'Q':
if (strcasecmp(optarg, "requests") != 0) {
fprintf(stderr, "Invalid query type\n");
exit(1);
}
for (i = 0; handlers[i].handler != NULL; i++)
printf("%s\n", handlers[i].name);
@@ -1575,16 +1584,23 @@ sftp_server_main(int argc, char **argv,
case 'u':
errno = 0;
mask = strtol(optarg, &cp, 8);
if (mask < 0 || mask > 0777 || *cp != '\0' ||
cp == optarg || (mask == 0 && errno != 0))
fatal("Invalid umask \"%s\"", optarg);
(void)umask((mode_t)mask);
break;
+ case 'm':
+ permforce = 1;
+ permforcemode = strtol(optarg, &cp, 8);
+ if (permforcemode < 0 || permforcemode > 0777 || *cp != '\0' ||
+ cp == optarg || (permforcemode == 0 && errno != 0))
+ fatal("Invalid umask \"%s\"", optarg);
+ break;
case 'h':
default:
sftp_server_usage();
}
}
log_init(__progname, log_level, log_facility, log_stderr);

366
openssh-7.2p2-sftp_homechroot.patch
View File

@ -1,366 +0,0 @@
# HG changeset patch
# Parent fc81df6f2bf393e45e703c89976c3a0fe6e0a273
run sftp sessions inside a chroot
diff --git a/openssh-7.2p2/session.c b/openssh-7.2p2/session.c
--- a/openssh-7.2p2/session.c
+++ b/openssh-7.2p2/session.c
@@ -123,16 +123,18 @@ int do_exec(Session *, const char *);
void do_login(Session *, const char *);
#ifdef LOGIN_NEEDS_UTMPX
static void do_pre_login(Session *s);
#endif
void do_child(Session *, const char *);
void do_motd(void);
int check_quietlogin(Session *, const char *);
+int chroot_no_tree = 0;
+
static void do_authenticated1(Authctxt *);
static void do_authenticated2(Authctxt *);
static int session_pty_req(Session *);
/* import */
extern ServerOptions options;
extern char *__progname;
@@ -838,16 +840,21 @@ do_exec(Session *s, const char *command)
"subsystem '%.900s'", s->subsys);
} else if (command == NULL) {
snprintf(session_type, sizeof(session_type), "shell");
} else {
/* NB. we don't log unforced commands to preserve privacy */
snprintf(session_type, sizeof(session_type), "command");
}
+ if ((s->is_subsystem != SUBSYSTEM_INT_SFTP) && chroot_no_tree) {
+ logit("You aren't welcomed, go away!");
+ exit (1);
+ }
+
if (s->ttyfd != -1) {
tty = s->tty;
if (strncmp(tty, "/dev/", 5) == 0)
tty += 5;
}
verbose("Starting session: %s%s%s for %s from %.200s port %d id %d",
session_type,
@@ -1492,58 +1499,123 @@ do_nologin(struct passwd *pw)
while (fgets(buf, sizeof(buf), f))
fputs(buf, stderr);
fclose(f);
}
exit(254);
}
/*
+ * Test if filesystem is mounted nosuid and nodev
+ */
+
+static void
+test_nosuid (char * path, dev_t fs)
+{
+ FILE *f;
+ struct stat st;
+ char buf[4096], *s, *on, *mountpoint, *opt;
+ int nodev, nosuid;
+
+ if (!(f = popen ("/bin/mount", "r")))
+ fatal ("%s: popen(\"/bin/mount\", \"r\"): %s",
+ __func__, strerror (errno));
+ for (;;) {
+ s = fgets (buf, sizeof (buf), f);
+ if (ferror (f))
+ fatal ("%s: read from popen: %s", __func__,
+ strerror (errno));
+ if (!s) {
+ pclose (f);
+ fatal ("cannot find filesystem with the chroot directory");
+ }
+ (void) strtok (buf, " ");
+ on = strtok (NULL, " ");
+ if (strcmp (on, "on")) {
+ pclose (f);
+ fatal ("bad format of mount output");
+ }
+ mountpoint = strtok (NULL, " ");
+ if (memcmp (path, mountpoint, strlen (mountpoint)))
+ continue;
+ if (stat(mountpoint, &st) != 0) {
+ pclose (f);
+ fatal("%s: stat(\"%s\"): %s", __func__,
+ mountpoint, strerror(errno));
+ }
+ if (fs != st.st_dev)
+ continue;
+ nodev = nosuid = 0;
+ for (opt = strtok (NULL, "("); opt; opt = strtok (NULL, " ,)")) {
+ if (!strcmp (opt, "nodev"))
+ nodev = 1;
+ else if (!strcmp (opt, "nosuid"))
+ nosuid = 1;
+ else if (!strcmp (opt, "noexec"))
+ nosuid = 1;
+ if (nodev && nosuid) {
+ pclose (f);
+ return;
+ }
+ }
+ fatal ("chroot into directory without nodev and either noexec or nosuid");
+ }
+}
+
+/*
* Chroot into a directory after checking it for safety: all path components
* must be root-owned directories with strict permissions.
*/
static void
safely_chroot(const char *path, uid_t uid)
{
const char *cp;
char component[PATH_MAX];
struct stat st;
+ int last;
if (*path != '/')
fatal("chroot path does not begin at root");
if (strlen(path) >= sizeof(component))
fatal("chroot path too long");
/*
* Descend the path, checking that each component is a
* root-owned directory with strict permissions.
*/
for (cp = path; cp != NULL;) {
- if ((cp = strchr(cp, '/')) == NULL)
+ if (last = ((cp = strchr(cp, '/')) == NULL))
strlcpy(component, path, sizeof(component));
else {
cp++;
memcpy(component, path, cp - path);
component[cp - path] = '\0';
}
debug3("%s: checking '%s'", __func__, component);
if (stat(component, &st) != 0)
fatal("%s: stat(\"%s\"): %s", __func__,
component, strerror(errno));
- if (st.st_uid != 0 || (st.st_mode & 022) != 0)
+ if ((st.st_uid != 0 || (st.st_mode & 022) != 0) && !(last && st.st_uid == uid))
fatal("bad ownership or modes for chroot "
"directory %s\"%s\"",
cp == NULL ? "" : "component ", component);
if (!S_ISDIR(st.st_mode))
fatal("chroot path %s\"%s\" is not a directory",
cp == NULL ? "" : "component ", component);
}
+ setenv ("TZ", "/etc/localtime", 0);
+ tzset();
+
+ if (st.st_uid) {
+ test_nosuid(path, st.st_dev);
+ ++chroot_no_tree;
+ }
if (chdir(path) == -1)
fatal("Unable to chdir to chroot path \"%s\": "
"%s", path, strerror(errno));
if (chroot(path) == -1)
fatal("chroot(\"%s\"): %s", path, strerror(errno));
if (chdir("/") == -1)
fatal("%s: chdir(/) after chroot: %s",
diff --git a/openssh-7.2p2/sftp-chrootenv.h b/openssh-7.2p2/sftp-chrootenv.h
new file mode 100644
--- /dev/null
+++ b/openssh-7.2p2/sftp-chrootenv.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2009 Jan F Chadima. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef CHROOTENV_H
+#define CHROOTENV_H
+
+extern int chroot_no_tree;
+
+#endif
+
diff --git a/openssh-7.2p2/sftp-common.c b/openssh-7.2p2/sftp-common.c
--- a/openssh-7.2p2/sftp-common.c
+++ b/openssh-7.2p2/sftp-common.c
@@ -43,16 +43,17 @@
#include "xmalloc.h"
#include "ssherr.h"
#include "sshbuf.h"
#include "log.h"
#include "sftp.h"
#include "sftp-common.h"
+#include "sftp-chrootenv.h"
/* Clear contents of attributes structure */
void
attrib_clear(Attrib *a)
{
a->flags = 0;
a->size = 0;
a->uid = 0;
@@ -216,23 +217,23 @@ ls_file(const char *name, const struct s
int ulen, glen, sz = 0;
struct tm *ltime = localtime(&st->st_mtime);
char *user, *group;
char buf[1024], mode[11+1], tbuf[12+1], ubuf[11+1], gbuf[11+1];
char sbuf[FMT_SCALED_STRSIZE];
time_t now;
strmode(st->st_mode, mode);
- if (!remote) {
+ if (!remote && !chroot_no_tree) {
user = user_from_uid(st->st_uid, 0);
} else {
snprintf(ubuf, sizeof ubuf, "%u", (u_int)st->st_uid);
user = ubuf;
}
- if (!remote) {
+ if (!remote && !chroot_no_tree) {
group = group_from_gid(st->st_gid, 0);
} else {
snprintf(gbuf, sizeof gbuf, "%u", (u_int)st->st_gid);
group = gbuf;
}
if (ltime != NULL) {
now = time(NULL);
if (now - (365*24*60*60)/2 < st->st_mtime &&
diff --git a/openssh-7.2p2/sftp-server-main.c b/openssh-7.2p2/sftp-server-main.c
--- a/openssh-7.2p2/sftp-server-main.c
+++ b/openssh-7.2p2/sftp-server-main.c
@@ -17,22 +17,25 @@
#include "includes.h"
#include <sys/types.h>
#include <pwd.h>
#include <stdarg.h>
#include <stdio.h>
#include <unistd.h>
+//#include <time.h>
#include "log.h"
#include "sftp.h"
#include "misc.h"
#include "xmalloc.h"
+int chroot_no_tree = 0;
+
void
cleanup_exit(int i)
{
sftp_server_cleanup_exit(i);
}
int
main(int argc, char **argv)
diff --git a/openssh-7.2p2/sftp.c b/openssh-7.2p2/sftp.c
--- a/openssh-7.2p2/sftp.c
+++ b/openssh-7.2p2/sftp.c
@@ -112,16 +112,18 @@ struct complete_ctx {
char **remote_pathp;
};
int remote_glob(struct sftp_conn *, const char *, int,
int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
extern char *__progname;
+int chroot_no_tree = 0;
+
/* Separators for interactive commands */
#define WHITESPACE " \t\r\n"
/* ls flags */
#define LS_LONG_VIEW 0x0001 /* Full view ala ls -l */
#define LS_SHORT_VIEW 0x0002 /* Single row view ala ls -1 */
#define LS_NUMERIC_VIEW 0x0004 /* Long view with numeric uid/gid */
#define LS_NAME_SORT 0x0008 /* Sort by name (default) */
diff --git a/openssh-7.2p2/sshd_config.0 b/openssh-7.2p2/sshd_config.0
--- a/openssh-7.2p2/sshd_config.0
+++ b/openssh-7.2p2/sshd_config.0
@@ -251,16 +251,24 @@ DESCRIPTION
directory on some operating systems (see sftp-server(8) for
details).
For safety, it is very important that the directory hierarchy be
prevented from modification by other processes on the system
(especially those outside the jail). Misconfiguration can lead
to unsafe environments which sshd(8) cannot detect.
+ In the special case when only sftp is used, not ssh nor scp, it
+ is possible to use ChrootDirectory %h or ChrootDirectory
+ /some/path/%u. The file system containing this directory must be
+ mounted with options nodev and either nosuid or noexec. The owner
+ of the directory should be the user. The ownership of the other
+ components of the path must fulfill the usual conditions. No adi-
+ tional files are required to be present in the directory.
+
The default is M-bM-^@M-^\noneM-bM-^@M-^], indicating not to chroot(2).
Ciphers
Specifies the ciphers allowed. Multiple ciphers must be comma-
separated. If the specified value begins with a M-bM-^@M-^X+M-bM-^@M-^Y character,
then the specified ciphers will be appended to the default set
instead of replacing them.
diff --git a/openssh-7.2p2/sshd_config.5 b/openssh-7.2p2/sshd_config.5
--- a/openssh-7.2p2/sshd_config.5
+++ b/openssh-7.2p2/sshd_config.5
@@ -424,16 +424,27 @@ for details).
.Pp
For safety, it is very important that the directory hierarchy be
prevented from modification by other processes on the system (especially
those outside the jail).
Misconfiguration can lead to unsafe environments which
.Xr sshd 8
cannot detect.
.Pp
+In the special case when only sftp is used, not ssh nor scp,
+it is possible to use
+.Cm ChrootDirectory
+%h or
+.Cm ChrootDirectory
+/some/path/%u. The file system containing this directory must be
+mounted with options nodev and either nosuid or noexec. The owner of the
+directory should be the user. The ownership of the other components of the path
+must fulfill the usual conditions. No aditional files are required to be present
+in the directory.
+.Pp
The default is
.Dq none ,
indicating not to
.Xr chroot 2 .
.It Cm Ciphers
Specifies the ciphers allowed.
Multiple ciphers must be comma-separated.
If the specified value begins with a

87
openssh-7.2p2-ssh_case_insensitive_host_matching.patch
View File

@ -1,87 +0,0 @@
# HG changeset patch
# Parent 1b99f71db584917a37c5e9140bf63dcb860e8b59
Match hostnames in a case-insensitive manner.
bsc#1017099
diff --git a/openssh-7.2p2/readconf.c b/openssh-7.2p2/readconf.c
--- a/openssh-7.2p2/readconf.c
+++ b/openssh-7.2p2/readconf.c
@@ -526,16 +526,17 @@ execute_in_shell(const char *cmd)
* Parse and execute a Match directive.
*/
static int
match_cfg_line(Options *options, char **condition, struct passwd *pw,
const char *host_arg, const char *original_host, int post_canon,
const char *filename, int linenum)
{
char *arg, *oattrib, *attrib, *cmd, *cp = *condition, *host, *criteria;
+ char *hostlc;
const char *ruser;
int r, port, this_result, result = 1, attributes = 0, negate;
char thishost[NI_MAXHOST], shorthost[NI_MAXHOST], portstr[NI_MAXSERV];
/*
* Configuration is likely to be incomplete at this point so we
* must be prepared to use default values.
*/
@@ -546,16 +547,20 @@ match_cfg_line(Options *options, char **
} else if (options->hostname != NULL) {
/* NB. Please keep in sync with ssh.c:main() */
host = percent_expand(options->hostname,
"h", host_arg, (char *)NULL);
} else {
host = xstrdup(host_arg);
}
+ /* match_hostname() requires the hostname to be lowercase */
+ hostlc = xstrdup(host);
+ lowercase(hostlc);
+
debug2("checking match for '%s' host %s originally %s",
cp, host, original_host);
while ((oattrib = attrib = strdelim(&cp)) && *attrib != '\0') {
criteria = NULL;
this_result = 1;
if ((negate = attrib[0] == '!'))
attrib++;
/* criteria "all" and "canonical" have no argument */
@@ -584,18 +589,18 @@ match_cfg_line(Options *options, char **
}
/* All other criteria require an argument */
if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
error("Missing Match criteria for %s", attrib);
result = -1;
goto out;
}
if (strcasecmp(attrib, "host") == 0) {
- criteria = xstrdup(host);
- r = match_hostname(host, arg) == 1;
+ criteria = xstrdup(hostlc);
+ r = match_hostname(hostlc, arg) == 1;
if (r == (negate ? 1 : 0))
this_result = result = 0;
} else if (strcasecmp(attrib, "originalhost") == 0) {
criteria = xstrdup(original_host);
r = match_hostname(original_host, arg) == 1;
if (r == (negate ? 1 : 0))
this_result = result = 0;
} else if (strcasecmp(attrib, "user") == 0) {
@@ -658,16 +663,17 @@ match_cfg_line(Options *options, char **
error("One or more attributes required for Match");
result = -1;
goto out;
}
out:
if (result != -1)
debug2("match %sfound", result ? "" : "not ");
*condition = cp;
+ free(hostlc);
free(host);
return result;
}
/* Check and prepare a domain name: removes trailing '.' and lowercases */
static void
valid_domain(char *name, const char *filename, int linenum)
{

175
openssh-7.2p2-verify_CIDR_address_ranges.patch
View File

@ -1,175 +0,0 @@
# HG changeset patch
# Parent 1b2dad1b57b086d094fe09327fcf1c490475a7cd
Check for invalid CIDR adress masks.
bsc#1005893
backported upstream commit: 010359b32659f455fddd2bd85fd7cc4d7a3b994a (7.4)
backported upstream commit: 1a6f9d2e2493d445cd9ee496e6e3c2a2f283f66a
backported upstream commit: fe06b68f824f8f55670442fb31f2c03526dd326c
diff --git a/openssh-7.2p2/auth.c b/openssh-7.2p2/auth.c
--- a/openssh-7.2p2/auth.c
+++ b/openssh-7.2p2/auth.c
@@ -95,16 +95,17 @@ int auth_debug_init;
* Otherwise true is returned.
*/
int
allowed_user(struct passwd * pw)
{
struct stat st;
const char *hostname = NULL, *ipaddr = NULL, *passwd = NULL;
u_int i;
+ int r;
#ifdef USE_SHADOW
struct spwd *spw = NULL;
#endif
/* Shouldn't be called if pw is NULL, but better safe than sorry... */
if (!pw || !pw->pw_name)
return 0;
@@ -183,31 +184,41 @@ allowed_user(struct passwd * pw)
if (options.num_deny_users > 0 || options.num_allow_users > 0 ||
options.num_deny_groups > 0 || options.num_allow_groups > 0) {
hostname = get_canonical_hostname(options.use_dns);
ipaddr = get_remote_ipaddr();
}
/* Return false if user is listed in DenyUsers */
if (options.num_deny_users > 0) {
- for (i = 0; i < options.num_deny_users; i++)
- if (match_user(pw->pw_name, hostname, ipaddr,
- options.deny_users[i])) {
+ for (i = 0; i < options.num_deny_users; i++) {
+ r = match_user(pw->pw_name, hostname, ipaddr,
+ options.deny_users[i]);
+ if (r < 0) {
+ fatal("Invalid DenyUsers pattern \"%.100s\"",
+ options.deny_users[i]);
+ } else if (r != 0) {
logit("User %.100s from %.100s not allowed "
"because listed in DenyUsers",
pw->pw_name, hostname);
return 0;
}
+ }
}
/* Return false if AllowUsers isn't empty and user isn't listed there */
if (options.num_allow_users > 0) {
- for (i = 0; i < options.num_allow_users; i++)
- if (match_user(pw->pw_name, hostname, ipaddr,
- options.allow_users[i]))
+ for (i = 0; i < options.num_allow_users; i++) {
+ r = match_user(pw->pw_name, hostname, ipaddr,
+ options.allow_users[i]);
+ if (r < 0) {
+ fatal("Invalid AllowUsers pattern \"%.100s\"",
+ options.allow_users[i]);
+ } else if (r == 1)
break;
+ }
/* i < options.num_allow_users iff we break for loop */
if (i >= options.num_allow_users) {
logit("User %.100s from %.100s not allowed because "
"not listed in AllowUsers", pw->pw_name, hostname);
return 0;
}
}
if (options.num_deny_groups > 0 || options.num_allow_groups > 0) {
diff --git a/openssh-7.2p2/match.c b/openssh-7.2p2/match.c
--- a/openssh-7.2p2/match.c
+++ b/openssh-7.2p2/match.c
@@ -186,41 +186,50 @@ match_hostname(const char *host, const c
* successful match.
*/
int
match_host_and_ip(const char *host, const char *ipaddr,
const char *patterns)
{
int mhost, mip;
- /* error in ipaddr match */
if ((mip = addr_match_list(ipaddr, patterns)) == -2)
- return -1;
- else if (mip == -1) /* negative ip address match */
- return 0;
+ return -1; /* error in ipaddr match */
+ else if (host == NULL || ipaddr == NULL || mip == -1)
+ return 0; /* negative ip address match, or testing pattern */
/* negative hostname match */
if ((mhost = match_hostname(host, patterns)) == -1)
return 0;
/* no match at all */
if (mhost == 0 && mip == 0)
return 0;
return 1;
}
/*
- * match user, user@host_or_ip, user@host_or_ip_list against pattern
+ * Match user, user@host_or_ip, user@host_or_ip_list against pattern.
+ * If user, host and ipaddr are all NULL then validate pattern/
+ * Returns -1 on invalid pattern, 0 on no match, 1 on match.
*/
int
match_user(const char *user, const char *host, const char *ipaddr,
const char *pattern)
{
char *p, *pat;
int ret;
+ /* test mode */
+ if (user == NULL && host == NULL && ipaddr == NULL) {
+ if ((p = strchr(pattern, '@')) != NULL &&
+ match_host_and_ip(NULL, NULL, p + 1) < 0)
+ return -1;
+ return 0;
+ }
+
if ((p = strchr(pattern,'@')) == NULL)
return match_pattern(user, pattern);
pat = xstrdup(pattern);
p = strchr(pat, '@');
*p++ = '\0';
if ((ret = match_pattern(user, pat)) == 1)
diff --git a/openssh-7.2p2/servconf.c b/openssh-7.2p2/servconf.c
--- a/openssh-7.2p2/servconf.c
+++ b/openssh-7.2p2/servconf.c
@@ -1462,28 +1462,34 @@ process_server_config_line(ServerOptions
multistate_ptr = multistate_privsep;
goto parse_multistate;
case sAllowUsers:
while ((arg = strdelim(&cp)) && *arg != '\0') {
if (options->num_allow_users >= MAX_ALLOW_USERS)
fatal("%s line %d: too many allow users.",
filename, linenum);
+ if (match_user(NULL, NULL, NULL, arg) == -1)
+ fatal("%s line %d: invalid AllowUsers pattern: "
+ "\"%.100s\"", filename, linenum, arg);
if (!*activep)
continue;
options->allow_users[options->num_allow_users++] =
xstrdup(arg);
}
break;
case sDenyUsers:
while ((arg = strdelim(&cp)) && *arg != '\0') {
if (options->num_deny_users >= MAX_DENY_USERS)
fatal("%s line %d: too many deny users.",
filename, linenum);
+ if (match_user(NULL, NULL, NULL, arg) == -1)
+ fatal("%s line %d: invalid DenyUsers pattern: "
+ "\"%.100s\"", filename, linenum, arg);
if (!*activep)
continue;
options->deny_users[options->num_deny_users++] =
xstrdup(arg);
}
break;
case sAllowGroups:

3
openssh-7.2p2.tar.gz
View File

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openssh-7.6p1-SUSE_patches.tar.gz Normal file
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oid sha256:99ff2a08373933a9a4205908a13079d9cc66aad0475ff12c7ae0fda96801f634
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oid sha256:a323caeeddfe145baaa0db16e98d784b1fbc7dd436a6bf1f479dfd5cd1d21723
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4
openssh-askpass-gnome.spec
View File

@ -1,7 +1,7 @@
# #
# spec file for package openssh-askpass-gnome # spec file for package openssh-askpass-gnome
# #
# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany. # Copyright (c) 2018 SUSE LINUX Products GmbH, Nuernberg, Germany.
# #
# All modifications and additions to the file contributed by third parties # All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed # remain the property of their copyright owners, unless otherwise agreed
@ -26,7 +26,7 @@ BuildRequires: openssl-devel
BuildRequires: pam-devel BuildRequires: pam-devel
BuildRequires: tcpd-devel BuildRequires: tcpd-devel
BuildRequires: update-desktop-files BuildRequires: update-desktop-files
Version: 7.2p2 Version: 7.6p1
Release: 0 Release: 0
Requires: openssh = %{version} Requires: openssh = %{version}
Summary: A GNOME-Based Passphrase Dialog for OpenSSH Summary: A GNOME-Based Passphrase Dialog for OpenSSH

644
openssh.changes
View File

@ -1,3 +1,647 @@
-------------------------------------------------------------------
Fri Jan 12 12:38:09 UTC 2018 - pcerny@suse.com
- Replace forgotten references to /var/adm/fillup-templates
with new %_fillupdir macro (boo#1069468)
- tighten configuration access rights
-------------------------------------------------------------------
Fri Jan 12 00:38:37 CET 2018 - pcerny@suse.com
- Update to vanilla 7.6p1
Most important changes (more details below):
* complete removal of the ancient SSHv1 protocol
* sshd(8) cannot run without privilege separation
* removal of suport for arcfourm blowfish and CAST ciphers
and RIPE-MD160 HMAC
* refuse RSA keys shorter than 1024 bits
Distilled upstream log:
- OpenSSH 7.3
---- Security
* sshd(8): Mitigate a potential denial-of-service attack
against the system's crypt(3) function via sshd(8). An
attacker could send very long passwords that would cause
excessive CPU use in crypt(3). sshd(8) now refuses to accept
password authentication requests of length greater than 1024
characters. Independently reported by Tomas Kuthan (Oracle),
Andres Rojas and Javier Nieto.
* sshd(8): Mitigate timing differences in password
authentication that could be used to discern valid from
invalid account names when long passwords were sent and
particular password hashing algorithms are in use on the
server. CVE-2016-6210, reported by EddieEzra.Harari at
verint.com
* ssh(1), sshd(8): Fix observable timing weakness in the CBC
padding oracle countermeasures. Reported by Jean Paul
Degabriele, Kenny Paterson, Torben Hansen and Martin
Albrecht. Note that CBC ciphers are disabled by default and
only included for legacy compatibility.
* ssh(1), sshd(8): Improve operation ordering of MAC
verification for Encrypt-then-MAC (EtM) mode transport MAC
algorithms to verify the MAC before decrypting any
ciphertext. This removes the possibility of timing
differences leaking facts about the plaintext, though no such
leakage has been observed. Reported by Jean Paul Degabriele,
Kenny Paterson, Torben Hansen and Martin Albrecht.
* sshd(8): (portable only) Ignore PAM environment vars when
UseLogin=yes. If PAM is configured to read user-specified
environment variables and UseLogin=yes in sshd_config, then a
hostile local user may attack /bin/login via LD_PRELOAD or
similar environment variables set via PAM. CVE-2015-8325,
found by Shayan Sadigh.
---- New Features
* ssh(1): Add a ProxyJump option and corresponding -J
command-line flag to allow simplified indirection through a
one or more SSH bastions or "jump hosts".
* ssh(1): Add an IdentityAgent option to allow specifying
specific agent sockets instead of accepting one from the
environment.
* ssh(1): Allow ExitOnForwardFailure and ClearAllForwardings to
be optionally overridden when using ssh -W. bz#2577
* ssh(1), sshd(8): Implement support for the IUTF8 terminal
mode as per draft-sgtatham-secsh-iutf8-00.
* ssh(1), sshd(8): Add support for additional fixed
Diffie-Hellman 2K, 4K and 8K groups from
draft-ietf-curdle-ssh-kex-sha2-03.
* ssh-keygen(1), ssh(1), sshd(8): support SHA256 and SHA512 RSA
signatures in certificates;
* ssh(1): Add an Include directive for ssh_config(5) files.
* ssh(1): Permit UTF-8 characters in pre-authentication banners
sent from the server. bz#2058
---- Bugfixes
* ssh(1), sshd(8): Reduce the syslog level of some relatively
common protocol events from LOG_CRIT. bz#2585
* sshd(8): Refuse AuthenticationMethods="" in configurations
and accept AuthenticationMethods=any for the default
behaviour of not requiring multiple authentication. bz#2398
* sshd(8): Remove obsolete and misleading "POSSIBLE BREAK-IN
ATTEMPT!" message when forward and reverse DNS don't match.
bz#2585
* ssh(1): Close ControlPersist background process stderr except
in debug mode or when logging to syslog. bz#1988
* misc: Make PROTOCOL description for
direct-streamlocal@openssh.com channel open messages match
deployed code. bz#2529
* ssh(1): Deduplicate LocalForward and RemoteForward entries to
fix failures when both ExitOnForwardFailure and hostname
canonicalisation are enabled. bz#2562
* sshd(8): Remove fallback from moduli to obsolete "primes"
file that was deprecated in 2001. bz#2559.
* sshd_config(5): Correct description of UseDNS: it affects ssh
hostname processing for authorized_keys, not known_hosts;
bz#2554
* ssh(1): Fix authentication using lone certificate keys in an
agent without corresponding private keys on the filesystem.
bz#2550
* sshd(8): Send ClientAliveInterval pings when a time-based
RekeyLimit is set; previously keepalive packets were not
being sent. bz#2252
---- Portability
* ssh(1), sshd(8): Fix compilation by automatically disabling
ciphers not supported by OpenSSL. bz#2466
* misc: Fix compilation failures on some versions of AIX's
compiler related to the definition of the VA_COPY macro.
bz#2589
* sshd(8): Whitelist more architectures to enable the
seccomp-bpf sandbox. bz#2590
* ssh-agent(1), sftp-server(8): Disable process tracing on
Solaris using setpflags(__PROC_PROTECT, ...). bz#2584
* sshd(8): On Solaris, don't call Solaris setproject() with
UsePAM=yes it's PAM's responsibility. bz#2425
- OpenSSH 7.4
---- Potentially-incompatible changes
* ssh(1): Remove 3des-cbc from the client's default proposal.
64-bit block ciphers are not safe in 2016 and we don't want
to wait until attacks like SWEET32 are extended to SSH. As
3des-cbc was the only mandatory cipher in the SSH RFCs, this
may cause problems connecting to older devices using the
default configuration, but it's highly likely that such
devices already need explicit configuration for key exchange
and hostkey algorithms already anyway.
* sshd(8): Remove support for pre-authentication compression.
Doing compression early in the protocol probably seemed
reasonable in the 1990s, but today it's clearly a bad idea in
terms of both cryptography (cf. multiple compression oracle
attacks in TLS) and attack surface. Pre-auth compression
support has been disabled by default for >10 years. Support
remains in the client.
* ssh-agent will refuse to load PKCS#11 modules outside a
whitelist of trusted paths by default. The path whitelist may
be specified at run-time.
* sshd(8): When a forced-command appears in both a certificate
and an authorized keys/principals command= restriction, sshd
will now refuse to accept the certificate unless they are
identical. The previous (documented) behaviour of having the
certificate forced-command override the other could be a bit
confusing and error-prone.
* sshd(8): Remove the UseLogin configuration directive and
support for having /bin/login manage login sessions.
---- Security
* ssh-agent(1): Will now refuse to load PKCS#11 modules from
paths outside a trusted whitelist (run-time configurable).
Requests to load modules could be passed via agent forwarding
and an attacker could attempt to load a hostile PKCS#11
module across the forwarded agent channel: PKCS#11 modules
are shared libraries, so this would result in code execution
on the system running the ssh-agent if the attacker has
control of the forwarded agent-socket (on the host running
the sshd server) and the ability to write to the filesystem
of the host running ssh-agent (usually the host running the
ssh client). Reported by Jann Horn of Project Zero.
* sshd(8): When privilege separation is disabled, forwarded
Unix- domain sockets would be created by sshd(8) with the
privileges of 'root' instead of the authenticated user. This
release refuses Unix-domain socket forwarding when privilege
separation is disabled (Privilege separation has been enabled
by default for 14 years). Reported by Jann Horn of Project
Zero.
* sshd(8): Avoid theoretical leak of host private key material
to privilege-separated child processes via realloc() when
reading keys. No such leak was observed in practice for
normal-sized keys, nor does a leak to the child processes
directly expose key material to unprivileged users. Reported
by Jann Horn of Project Zero.
* sshd(8): The shared memory manager used by pre-authentication
compression support had a bounds checks that could be elided
by some optimising compilers. Additionally, this memory
manager was incorrectly accessible when pre-authentication
compression was disabled. This could potentially allow
attacks against the privileged monitor process from the
sandboxed privilege-separation process (a compromise of the
latter would be required first). This release removes
support for pre-authentication compression from sshd(8).
Reported by Guido Vranken using the Stack unstable
optimisation identification tool
(http://css.csail.mit.edu/stack/)
* sshd(8): Fix denial-of-service condition where an attacker
who sends multiple KEXINIT messages may consume up to 128MB
per connection. Reported by Shi Lei of Gear Team, Qihoo 360.
* sshd(8): Validate address ranges for AllowUser and DenyUsers
directives at configuration load time and refuse to accept
invalid ones. It was previously possible to specify invalid
CIDR address ranges (e.g. user@127.1.2.3/55) and these would
always match, possibly resulting in granting access where it
was not intended. Reported by Laurence Parry.
---- New Features
* ssh(1): Add a proxy multiplexing mode to ssh(1) inspired by
the version in PuTTY by Simon Tatham. This allows a
multiplexing client to communicate with the master process
using a subset of the SSH packet and channels protocol over a
Unix-domain socket, with the main process acting as a proxy
that translates channel IDs, etc. This allows multiplexing
mode to run on systems that lack file- descriptor passing
(used by current multiplexing code) and potentially, in
conjunction with Unix-domain socket forwarding, with the
client and multiplexing master process on different machines.
Multiplexing proxy mode may be invoked using "ssh -O proxy
..."
* sshd(8): Add a sshd_config DisableForwarding option that
disables X11, agent, TCP, tunnel and Unix domain socket
forwarding, as well as anything else we might implement in
the future. Like the 'restrict' authorized_keys flag, this is
intended to be a simple and future-proof way of restricting
an account.
* sshd(8), ssh(1): Support the "curve25519-sha256" key exchange
method. This is identical to the currently-supported method
named "curve25519-sha256@libssh.org".
* sshd(8): Improve handling of SIGHUP by checking to see if
sshd is already daemonised at startup and skipping the call
to daemon(3) if it is. This ensures that a SIGHUP restart of
sshd(8) will retain the same process-ID as the initial
execution. sshd(8) will also now unlink the PidFile prior to
SIGHUP restart and re-create it after a successful restart,
rather than leaving a stale file in the case of a
configuration error. bz#2641
* sshd(8): Allow ClientAliveInterval and ClientAliveCountMax
directives to appear in sshd_config Match blocks.
* sshd(8): Add %-escapes to AuthorizedPrincipalsCommand to
match those supported by AuthorizedKeysCommand (key, key
type, fingerprint, etc.) and a few more to provide access to
the contents of the certificate being offered.
* Added regression tests for string matching, address matching
and string sanitisation functions.
* Improved the key exchange fuzzer harness.
---- Bugfixes
* ssh(1): Allow IdentityFile to successfully load and use
certificates that have no corresponding bare public key.
bz#2617 certificate id_rsa-cert.pub (and no id_rsa.pub).
* ssh(1): Fix public key authentication when multiple
authentication is in use and publickey is not just the first
method attempted. bz#2642
* regress: Allow the PuTTY interop tests to run unattended.
bz#2639
* ssh-agent(1), ssh(1): improve reporting when attempting to
load keys from PKCS#11 tokens with fewer useless log messages
and more detail in debug messages. bz#2610
* ssh(1): When tearing down ControlMaster connections, don't
pollute stderr when LogLevel=quiet.
* sftp(1): On ^Z wait for underlying ssh(1) to suspend before
suspending sftp(1) to ensure that ssh(1) restores the
terminal mode correctly if suspended during a password
prompt.
* ssh(1): Avoid busy-wait when ssh(1) is suspended during a
password prompt.
* ssh(1), sshd(8): Correctly report errors during sending of
ext- info messages.
* sshd(8): fix NULL-deref crash if sshd(8) received an out-of-
sequence NEWKEYS message.
* sshd(8): Correct list of supported signature algorithms sent
in the server-sig-algs extension. bz#2547
* sshd(8): Fix sending ext_info message if privsep is disabled.
* sshd(8): more strictly enforce the expected ordering of
privilege separation monitor calls used for authentication
and allow them only when their respective authentication
methods are enabled in the configuration
* sshd(8): Fix uninitialised optlen in getsockopt() call;
harmless on Unix/BSD but potentially crashy on Cygwin.
* Fix false positive reports caused by explicit_bzero(3) not
being recognised as a memory initialiser when compiled with
-fsanitize-memory.
* sshd_config(5): Use 2001:db8::/32, the official IPv6 subnet
for configuration examples.
---- Portability
* On environments configured with Turkish locales, fall back to
the C/POSIX locale to avoid errors in configuration parsing
caused by that locale's unique handling of the letters 'i'
and 'I'. bz#2643
* sftp-server(8), ssh-agent(1): Deny ptrace on OS X using
ptrace(PT_DENY_ATTACH, ..)
* ssh(1), sshd(8): Unbreak AES-CTR ciphers on old (~0.9.8)
OpenSSL.
* Fix compilation for libcrypto compiled without RIPEMD160
support.
* contrib: Add a gnome-ssh-askpass3 with GTK+3 support. bz#2640
* sshd(8): Improve PRNG reseeding across privilege separation
and force libcrypto to obtain a high-quality seed before
chroot or sandboxing.
* All: Explicitly test for broken strnvis. NetBSD added an
strnvis and unfortunately made it incompatible with the
existing one in OpenBSD and Linux's libbsd (the former having
existed for over ten years). Try to detect this mess, and
assume the only safe option if we're cross compiling.
- OpenSSH 7.5
---- Potentially-incompatible changes
* This release deprecates the sshd_config
UsePrivilegeSeparation option, thereby making privilege
separation mandatory. Privilege separation has been on by
default for almost 15 years and sandboxing has been on by
default for almost the last five.
* The format of several log messages emitted by the packet code
has changed to include additional information about the user
and their authentication state. Software that monitors
ssh/sshd logs may need to account for these changes. For
example:
Connection closed by user x 1.1.1.1 port 1234 [preauth]
Connection closed by authenticating user x 10.1.1.1 port 1234
[preauth] Connection closed by invalid user x 1.1.1.1 port
1234 [preauth]
Affected messages include connection closure, timeout, remote
disconnection, negotiation failure and some other fatal
messages generated by the packet code.
* [Portable OpenSSH only] This version removes support for
building against OpenSSL versions prior to 1.0.1. OpenSSL
stopped supporting versions prior to 1.0.1 over 12 months ago
(i.e. they no longer receive fixes for security bugs).
---- Security
* ssh(1), sshd(8): Fix weakness in CBC padding oracle
countermeasures that allowed a variant of the attack fixed in
OpenSSH 7.3 to proceed. Note that the OpenSSH client
disables CBC ciphers by default, sshd offers them as
lowest-preference options and will remove them by default
entriely in the next release. Reported by Jean Paul
Degabriele, Kenny Paterson, Martin Albrecht and Torben Hansen
of Royal Holloway, University of London.
* sftp-client(1): [portable OpenSSH only] On Cygwin, a client
making a recursive file transfer could be maniuplated by a
hostile server to perform a path-traversal attack. creating
or modifying files outside of the intended target directory.
Reported by Jann Horn of Google Project Zero.
---- New Features
* ssh(1), sshd(8): Support "=-" syntax to easily remove methods
from algorithm lists, e.g. Ciphers=-*cbc. bz#2671
---- Bugfixes
* sshd(1): Fix NULL dereference crash when key exchange start
messages are sent out of sequence.
* ssh(1), sshd(8): Allow form-feed characters to appear in
configuration files.
* sshd(8): Fix regression in OpenSSH 7.4 support for the
server-sig-algs extension, where SHA2 RSA signature methods
were not being correctly advertised. bz#2680
* ssh(1), ssh-keygen(1): Fix a number of case-sensitivity bugs
in known_hosts processing. bz#2591 bz#2685
* ssh(1): Allow ssh to use certificates accompanied by a
private key file but no corresponding plain *.pub public key.
bz#2617
* ssh(1): When updating hostkeys using the UpdateHostKeys
option, accept RSA keys if HostkeyAlgorithms contains any RSA
keytype. Previously, ssh could ignore RSA keys when only the
ssh-rsa-sha2-* methods were enabled in HostkeyAlgorithms and
not the old ssh-rsa method. bz#2650
* ssh(1): Detect and report excessively long configuration file
lines. bz#2651
* Merge a number of fixes found by Coverity and reported via
Redhat and FreeBSD. Includes fixes for some memory and file
descriptor leaks in error paths. bz#2687
* ssh-keyscan(1): Correctly hash hosts with a port number.
bz#2692
* ssh(1), sshd(8): When logging long messages to stderr, don't
truncate "\r\n" if the length of the message exceeds the
buffer. bz#2688
* ssh(1): Fully quote [host]:port in generated ProxyJump/-J
command- line; avoid confusion over IPv6 addresses and shells
that treat square bracket characters specially.
* ssh-keygen(1): Fix corruption of known_hosts when running
"ssh-keygen -H" on a known_hosts containing already-hashed
entries.
* Fix various fallout and sharp edges caused by removing SSH
protocol 1 support from the server, including the server
banner string being incorrectly terminated with only \n
(instead of \r\n), confusing error messages from ssh-keyscan
bz#2583 and a segfault in sshd if protocol v.1 was enabled
for the client and sshd_config contained references to legacy
keys bz#2686.
* ssh(1), sshd(8): Free fd_set on connection timeout. bz#2683
* sshd(8): Fix Unix domain socket forwarding for root
(regression in OpenSSH 7.4).
* sftp(1): Fix division by zero crash in "df" output when
server returns zero total filesystem blocks/inodes.
* ssh(1), ssh-add(1), ssh-keygen(1), sshd(8): Translate OpenSSL
errors encountered during key loading to more meaningful
error codes. bz#2522 bz#2523
* ssh-keygen(1): Sanitise escape sequences in key comments sent
to printf but preserve valid UTF-8 when the locale supports
it; bz#2520
* ssh(1), sshd(8): Return reason for port forwarding failures
where feasible rather than always "administratively
prohibited". bz#2674
* sshd(8): Fix deadlock when AuthorizedKeysCommand or
AuthorizedPrincipalsCommand produces a lot of output and a
key is matched early. bz#2655
* Regression tests: several reliability fixes. bz#2654 bz#2658
bz#2659
* ssh(1): Fix typo in ~C error message for bad port forward
cancellation. bz#2672
* ssh(1): Show a useful error message when included config
files can't be opened; bz#2653
* sshd(8): Make sshd set GSSAPIStrictAcceptorCheck=yes as the
manual page (previously incorrectly) advertised. bz#2637
* sshd_config(5): Repair accidentally-deleted mention of %k
token in AuthorizedKeysCommand; bz#2656
* sshd(8): Remove vestiges of previously removed LOGIN_PROGRAM;
bz#2665
* ssh-agent(1): Relax PKCS#11 whitelist to include libexec and
common 32-bit compatibility library directories.
* sftp-client(1): Fix non-exploitable integer overflow in
SSH2_FXP_NAME response handling.
* ssh-agent(1): Fix regression in 7.4 of deleting
PKCS#11-hosted keys. It was not possible to delete them
except by specifying their full physical path. bz#2682
---- Portability
* sshd(8): Avoid sandbox errors for Linux S390 systems using an
ICA crypto coprocessor.
* sshd(8): Fix non-exploitable weakness in seccomp-bpf sandbox
arg inspection.
* ssh(1): Fix X11 forwarding on OSX where X11 was being started
by launchd. bz#2341
* ssh-keygen(1), ssh(1), sftp(1): Fix output truncation for
various that contain non-printable characters where the
codeset in use is ASCII.
* build: Fix builds that attempt to link a kerberised libldns.
bz#2603
* build: Fix compilation problems caused by unconditionally
defining _XOPEN_SOURCE in wide character detection.
* sshd(8): Fix sandbox violations for clock_gettime VSDO
syscall fallback on some Linux/X32 kernels. bz#2142
- OpenSSH 7.6
---- Potentially-incompatible changes
This release includes a number of changes that may affect
existing configurations:
* ssh(1): delete SSH protocol version 1 support, associated
configuration options and documentation.
* ssh(1)/sshd(8): remove support for the hmac-ripemd160 MAC.
* ssh(1)/sshd(8): remove support for the arcfour, blowfish and
CAST ciphers.
* Refuse RSA keys <1024 bits in length and improve reporting
for keys that do not meet this requirement.
* ssh(1): do not offer CBC ciphers by default.
---- Security
* sftp-server(8): in read-only mode, sftp-server was
incorrectly permitting creation of zero-length files.
Reported by Michal Zalewski.
---- New Features
* ssh(1): add RemoteCommand option to specify a command in the
ssh config file instead of giving it on the client's command
line. This allows the configuration file to specify the
command that will be executed on the remote host.
* sshd(8): add ExposeAuthInfo option that enables writing
details of the authentication methods used (including public
keys where applicable) to a file that is exposed via a
$SSH_USER_AUTH environment variable in the subsequent
session.
* ssh(1): add support for reverse dynamic forwarding. In this
mode, ssh will act as a SOCKS4/5 proxy and forward
connections to destinations requested by the remote SOCKS
client. This mode is requested using extended syntax for the
-R and RemoteForward options and, because it is implemented
solely at the client, does not require the server be updated
to be supported.
* sshd(8): allow LogLevel directive in sshd_config Match
blocks; bz#2717
* ssh-keygen(1): allow inclusion of arbitrary string or flag
certificate extensions and critical options.
* ssh-keygen(1): allow ssh-keygen to use a key held in
ssh-agent as a CA when signing certificates. bz#2377
* ssh(1)/sshd(8): allow IPQoS=none in ssh/sshd to not set an
explicit ToS/DSCP value and just use the operating system
default.
* ssh-add(1): added -q option to make ssh-add quiet on success.
* ssh(1): expand the StrictHostKeyChecking option with two new
settings. The first "accept-new" will automatically accept
hitherto-unseen keys but will refuse connections for changed
or invalid hostkeys. This is a safer subset of the current
behaviour of StrictHostKeyChecking=no. The second setting
"off", is a synonym for the current behaviour of
StrictHostKeyChecking=no: accept new host keys, and continue
connection for hosts with incorrect hostkeys. A future
release will change the meaning of StrictHostKeyChecking=no
to the behaviour of "accept-new". bz#2400
* ssh(1): add SyslogFacility option to ssh(1) matching the
equivalent option in sshd(8). bz#2705
---- Bugfixes
* ssh(1): use HostKeyAlias if specified instead of hostname for
matching host certificate principal names; bz#2728
* sftp(1): implement sorting for globbed ls; bz#2649
* ssh(1): add a user@host prefix to client's "Permission
denied" messages, useful in particular when using "stacked"
connections (e.g. ssh -J) where it's not clear which host is
denying. bz#2720
* ssh(1): accept unknown EXT_INFO extension values that contain
\0 characters. These are legal, but would previously cause
fatal connection errors if received.
* ssh(1)/sshd(8): repair compression statistics printed at
connection exit
* sftp(1): print '?' instead of incorrect link count (that the
protocol doesn't provide) for remote listings. bz#2710
* ssh(1): return failure rather than fatal() for more cases
during session multiplexing negotiations. Causes the session
to fall back to a non-mux connection if they occur. bz#2707
* ssh(1): mention that the server may send debug messages to
explain public key authentication problems under some
circumstances; bz#2709
* Translate OpenSSL error codes to better report incorrect
passphrase errors when loading private keys; bz#2699
* sshd(8): adjust compatibility patterns for WinSCP to
correctly identify versions that implement only the legacy DH
group exchange scheme. bz#2748
* ssh(1): print the "Killed by signal 1" message only at
LogLevel verbose so that it is not shown at the default
level; prevents it from appearing during ssh -J and
equivalent ProxyCommand configs. bz#1906, bz#2744
* ssh-keygen(1): when generating all hostkeys (ssh-keygen -A),
clobber existing keys if they exist but are zero length.
zero-length keys could previously be made if ssh-keygen
failed or was interrupted part way through generating them.
bz#2561
* ssh(1): fix pledge(2) violation in the escape sequence "~&"
used to place the current session in the background.
* ssh-keyscan(1): avoid double-close() on file descriptors;
bz#2734
* sshd(8): avoid reliance on shared use of pointers shared
between monitor and child sshd processes. bz#2704
* sshd_config(8): document available AuthenticationMethods;
bz#2453
* ssh(1): avoid truncation in some login prompts; bz#2768
* sshd(8): Fix various compilations failures, inc bz#2767
* ssh(1): make "--" before the hostname terminate argument
processing after the hostname too.
* ssh-keygen(1): switch from aes256-cbc to aes256-ctr for
encrypting new-style private keys. Fixes problems related to
private key handling for no-OpenSSL builds. bz#2754
* ssh(1): warn and do not attempt to use keys when the public
and private halves do not match. bz#2737
* sftp(1): don't print verbose error message when ssh
disconnects from under sftp. bz#2750
* sshd(8): fix keepalive scheduling problem: activity on a
forwarded port from preventing the keepalive from being sent;
bz#2756
* sshd(8): when started without root privileges, don't require
the privilege separation user or path to exist. Makes running
the regression tests easier without touching the filesystem.
* Make integrity.sh regression tests more robust against
timeouts. bz#2658
* ssh(1)/sshd(8): correctness fix for channels implementation:
accept channel IDs greater than 0x7FFFFFFF.
---- Portability
* sshd(9): drop two more privileges in the Solaris sandbox:
PRIV_DAX_ACCESS and PRIV_SYS_IB_INFO; bz#2723
* sshd(8): expose list of completed authentication methods to
PAM via the SSH_AUTH_INFO_0 PAM environment variable. bz#2408
* ssh(1)/sshd(8): fix several problems in the tun/tap
forwarding code, mostly to do with host/network byte order
confusion. bz#2735
* Add --with-cflags-after and --with-ldflags-after configure
flags to allow setting CFLAGS/LDFLAGS after configure has
completed. These are useful for setting sanitiser/fuzzing
options that may interfere with configure's operation.
* sshd(8): avoid Linux seccomp violations on ppc64le over the
socketcall syscall.
* Fix use of ldns when using ldns-config; bz#2697
* configure: set cache variables when cross-compiling. The
cross- compiling fallback message was saying it assumed the
test passed, but it wasn't actually set the cache variables
and this would cause later tests to fail.
* Add clang libFuzzer harnesses for public key parsing and
signature verification.
- packaging:
* moving patches into a separate archive
* first round of rebased patches:
[-X11_trusted_forwarding]
[-allow_root_password_login]
[-blocksigalrm]
[-cavstest-ctr]
[-cavstest-kdf]
[-disable_short_DH_parameters]
[-eal3]
[-enable_PAM_by_default]
[-fips]
[-fips_checks]
[-gssapi_key_exchange]
[-hostname_changes_when_forwarding_X]
[-lastlog]
[-missing_headers]
[-pam_check_locks]
[-pts_names_formatting]
[-remove_xauth_cookies_on_exit]
[-seccomp_geteuid]
[-seccomp_getuid]
[-seccomp_stat]
[-seed-prng]
[-send_locale]
[-systemd-notify]
* not rebased (obsoleted) patches (so far):
[-additional_seccomp_archs]
[-allow_DSS_by_default]
[-default_protocol]
[-dont_use_pthreads_in_PAM]
[-eal3_obsolete]
[-gssapimitm]
[-saveargv-fix]
* obviously removing all standalone patch files:
[openssh-7.2p2-allow_root_password_login.patch]
[openssh-7.2p2-allow_DSS_by_default.patch]
[openssh-7.2p2-X11_trusted_forwarding.patch]
[openssh-7.2p2-lastlog.patch]
[openssh-7.2p2-enable_PAM_by_default.patch]
[openssh-7.2p2-dont_use_pthreads_in_PAM.patch]
[openssh-7.2p2-eal3.patch]
[openssh-7.2p2-blocksigalrm.patch]
[openssh-7.2p2-send_locale.patch]
[openssh-7.2p2-hostname_changes_when_forwarding_X.patch]
[openssh-7.2p2-remove_xauth_cookies_on_exit.patch]
[openssh-7.2p2-pts_names_formatting.patch]
[openssh-7.2p2-pam_check_locks.patch]
[openssh-7.2p2-disable_short_DH_parameters.patch]
[openssh-7.2p2-seccomp_getuid.patch]
[openssh-7.2p2-seccomp_geteuid.patch]
[openssh-7.2p2-seccomp_stat.patch]
[openssh-7.2p2-additional_seccomp_archs.patch]
[openssh-7.2p2-fips.patch]
[openssh-7.2p2-cavstest-ctr.patch]
[openssh-7.2p2-cavstest-kdf.patch]
[openssh-7.2p2-seed-prng.patch]
[openssh-7.2p2-gssapi_key_exchange.patch]
[openssh-7.2p2-audit.patch]
[openssh-7.2p2-audit_fixes.patch]
[openssh-7.2p2-audit_seed_prng.patch]
[openssh-7.2p2-login_options.patch]
[openssh-7.2p2-disable_openssl_abi_check.patch]
[openssh-7.2p2-no_fork-no_pid_file.patch]
[openssh-7.2p2-host_ident.patch]
[openssh-7.2p2-sftp_homechroot.patch]
[openssh-7.2p2-sftp_force_permissions.patch]
[openssh-7.2p2-X_forward_with_disabled_ipv6.patch]
[openssh-7.2p2-ldap.patch]
[openssh-7.2p2-IPv6_X_forwarding.patch]
[openssh-7.2p2-ignore_PAM_with_UseLogin.patch]
[openssh-7.2p2-prevent_timing_user_enumeration.patch]
[openssh-7.2p2-limit_password_length.patch]
[openssh-7.2p2-keep_slogin.patch]
[openssh-7.2p2-kex_resource_depletion.patch]
[openssh-7.2p2-verify_CIDR_address_ranges.patch]
[openssh-7.2p2-restrict_pkcs11-modules.patch]
[openssh-7.2p2-prevent_private_key_leakage.patch]
[openssh-7.2p2-secure_unix_sockets_forwarding.patch]
[openssh-7.2p2-ssh_case_insensitive_host_matching.patch]
[openssh-7.2p2-disable_preauth_compression.patch]
[openssh-7.2p2-s390_hw_crypto_syscalls.patch]
[openssh-7.2p2-s390_OpenSSL-ibmpkcs11_syscalls.patch]
-------------------------------------------------------------------
Thu Nov 23 13:38:52 UTC 2017 - rbrown@suse.com
- Replace references to /var/adm/fillup-templates with new
%_fillupdir macro (boo#1069468)
------------------------------------------------------------------- -------------------------------------------------------------------
Wed Oct 25 15:09:06 UTC 2017 - jsegitz@suse.com Wed Oct 25 15:09:06 UTC 2017 - jsegitz@suse.com

140
openssh.spec
View File

@ -1,7 +1,7 @@
# #
# spec file for package openssh # spec file for package openssh
# #
# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany. # Copyright (c) 2018 SUSE LINUX Products GmbH, Nuernberg, Germany.
# #
# All modifications and additions to the file contributed by third parties # All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed # remain the property of their copyright owners, unless otherwise agreed
@ -16,6 +16,11 @@
# #
#Compat macro for new _fillupdir macro introduced in Nov 2017
%if ! %{defined _fillupdir}
%define _fillupdir /var/adm/fillup-templates
%endif
%if 0%{suse_version} >= 1100 %if 0%{suse_version} >= 1100
%define has_fw_dir 1 %define has_fw_dir 1
%else %else
@ -85,6 +90,7 @@ BuildRequires: libopenssl-1_0_0-devel
BuildRequires: openldap2-devel BuildRequires: openldap2-devel
BuildRequires: pam-devel BuildRequires: pam-devel
%if %{uses_systemd} %if %{uses_systemd}
BuildRequires: systemd-devel
BuildRequires: pkgconfig(systemd) BuildRequires: pkgconfig(systemd)
%{?systemd_requires} %{?systemd_requires}
%endif %endif
@ -93,7 +99,7 @@ PreReq: pwdutils %{fillup_prereq} coreutils
%if ! %{uses_systemd} %if ! %{uses_systemd}
PreReq: %{insserv_prereq} PreReq: %{insserv_prereq}
%endif %endif
Version: 7.2p2 Version: 7.6p1
Release: 0 Release: 0
Summary: Secure Shell Client and Server (Remote Login Program) Summary: Secure Shell Client and Server (Remote Login Program)
License: BSD-2-Clause and MIT License: BSD-2-Clause and MIT
@ -113,54 +119,7 @@ Source9: sshd-gen-keys-start
Source10: sshd.service Source10: sshd.service
Source11: README.FIPS Source11: README.FIPS
Source12: cavs_driver-ssh.pl Source12: cavs_driver-ssh.pl
Patch00: openssh-7.2p2-allow_root_password_login.patch Source100: openssh-%{version}-SUSE_patches.tar.gz
Patch01: openssh-7.2p2-allow_DSS_by_default.patch
Patch02: openssh-7.2p2-X11_trusted_forwarding.patch
Patch03: openssh-7.2p2-lastlog.patch
Patch04: openssh-7.2p2-enable_PAM_by_default.patch
Patch05: openssh-7.2p2-dont_use_pthreads_in_PAM.patch
Patch06: openssh-7.2p2-eal3.patch
Patch07: openssh-7.2p2-blocksigalrm.patch
Patch08: openssh-7.2p2-send_locale.patch
Patch09: openssh-7.2p2-hostname_changes_when_forwarding_X.patch
Patch10: openssh-7.2p2-remove_xauth_cookies_on_exit.patch
Patch11: openssh-7.2p2-pts_names_formatting.patch
Patch12: openssh-7.2p2-pam_check_locks.patch
Patch13: openssh-7.2p2-disable_short_DH_parameters.patch
Patch14: openssh-7.2p2-seccomp_getuid.patch
Patch15: openssh-7.2p2-seccomp_geteuid.patch
Patch16: openssh-7.2p2-seccomp_stat.patch
Patch17: openssh-7.2p2-additional_seccomp_archs.patch
Patch18: openssh-7.2p2-fips.patch
Patch19: openssh-7.2p2-cavstest-ctr.patch
Patch20: openssh-7.2p2-cavstest-kdf.patch
Patch21: openssh-7.2p2-seed-prng.patch
Patch22: openssh-7.2p2-gssapi_key_exchange.patch
Patch23: openssh-7.2p2-audit.patch
Patch24: openssh-7.2p2-audit_fixes.patch
Patch25: openssh-7.2p2-audit_seed_prng.patch
Patch26: openssh-7.2p2-login_options.patch
Patch27: openssh-7.2p2-disable_openssl_abi_check.patch
Patch28: openssh-7.2p2-no_fork-no_pid_file.patch
Patch29: openssh-7.2p2-host_ident.patch
Patch30: openssh-7.2p2-sftp_homechroot.patch
Patch31: openssh-7.2p2-sftp_force_permissions.patch
Patch32: openssh-7.2p2-X_forward_with_disabled_ipv6.patch
Patch33: openssh-7.2p2-ldap.patch
Patch34: openssh-7.2p2-IPv6_X_forwarding.patch
Patch35: openssh-7.2p2-ignore_PAM_with_UseLogin.patch
Patch36: openssh-7.2p2-prevent_timing_user_enumeration.patch
Patch37: openssh-7.2p2-limit_password_length.patch
Patch38: openssh-7.2p2-keep_slogin.patch
Patch39: openssh-7.2p2-kex_resource_depletion.patch
Patch40: openssh-7.2p2-verify_CIDR_address_ranges.patch
Patch41: openssh-7.2p2-restrict_pkcs11-modules.patch
Patch42: openssh-7.2p2-prevent_private_key_leakage.patch
Patch43: openssh-7.2p2-secure_unix_sockets_forwarding.patch
Patch44: openssh-7.2p2-ssh_case_insensitive_host_matching.patch
Patch45: openssh-7.2p2-disable_preauth_compression.patch
Patch46: openssh-7.2p2-s390_hw_crypto_syscalls.patch
Patch47: openssh-7.2p2-s390_OpenSSL-ibmpkcs11_syscalls.patch
BuildRoot: %{_tmppath}/%{name}-%{version}-build BuildRoot: %{_tmppath}/%{name}-%{version}-build
Conflicts: nonfreessh Conflicts: nonfreessh
Recommends: audit Recommends: audit
@ -211,64 +170,22 @@ FIPS140 CAVS tests related parts of the OpenSSH package
%prep %prep
%setup -q %setup -q -b 100
%patch00 -p2
%patch01 -p2
%patch02 -p2
%patch03 -p2
%patch04 -p2
%patch05 -p2
%patch06 -p2
%patch07 -p2
%patch08 -p2
%patch09 -p2
%patch10 -p2
%patch11 -p2
%patch12 -p2
%patch13 -p2
%patch14 -p2
%patch15 -p2
%patch16 -p2
%patch17 -p2
%patch18 -p2
%patch19 -p2
%patch20 -p2
%patch21 -p2
%patch22 -p2
%patch23 -p2
%patch24 -p2
%patch25 -p2
%patch26 -p2
%patch27 -p2
%patch28 -p2
%patch29 -p2
%patch30 -p2
%patch31 -p2
%patch32 -p2
%patch33 -p2
%patch34 -p2
%patch35 -p2
%patch36 -p2
%patch37 -p2
%patch38 -p2
%patch39 -p2
%patch40 -p2
%patch41 -p2
%patch42 -p2
%patch43 -p2
%patch44 -p2
%patch45 -p2
%patch46 -p2
%patch47 -p2
cp %{SOURCE3} %{SOURCE4} %{SOURCE11} . cp %{SOURCE3} %{SOURCE4} %{SOURCE11} .
# patch sources
PATCH_DIR="../SUSE_patches"
cat $PATCH_DIR/patch.series | while read p; do
printf ">> applying '$p'\n"
patch -p2 < "${PATCH_DIR}/$p"
done
#LDAP: # set libexec dir in the LDAP patch
#LDAP: sed -i.libexec 's,@LIBEXECDIR@,%{_libexecdir}/ssh,' \
#LDAP: $( grep -Rl @LIBEXECDIR@ \
#LDAP: $( grep "^+++" %{PATCH33} | sed -r 's@^.+/([^/\t ]+).*$@\1@' )
#LDAP: )
%build %build
# set libexec dir in the LDAP patch
sed -i.libexec 's,@LIBEXECDIR@,%{_libexecdir}/ssh,' \
$( grep -Rl @LIBEXECDIR@ \
$( grep "^+++" %{PATCH33} | sed -r 's@^.+/([^/\t ]+).*$@\1@' )
)
autoreconf -fiv autoreconf -fiv
%ifarch s390 s390x %sparc %ifarch s390 s390x %sparc
PIEFLAGS="-fPIE" PIEFLAGS="-fPIE"
@ -292,6 +209,7 @@ export LDFLAGS CFLAGS CXXFLAGS CPPFLAGS
%endif %endif
%if %{uses_systemd} %if %{uses_systemd}
--with-pid-dir=/run \ --with-pid-dir=/run \
--with-systemd \
%endif %endif
--with-ssl-engine \ --with-ssl-engine \
--with-pam \ --with-pam \
@ -339,8 +257,8 @@ install -D -m 0755 %{SOURCE1} %{buildroot}%{_initddir}/sshd
install -m 0644 %{SOURCE10} . install -m 0644 %{SOURCE10} .
ln -s ../..%{_initddir}/sshd %{buildroot}%{_sbindir}/rcsshd ln -s ../..%{_initddir}/sshd %{buildroot}%{_sbindir}/rcsshd
%endif %endif
install -d -m 755 %{buildroot}/var/adm/fillup-templates install -d -m 755 %{buildroot}%{_fillupdir}
install -m 644 %{SOURCE8} %{buildroot}/var/adm/fillup-templates install -m 644 %{SOURCE8} %{buildroot}%{_fillupdir}
# install shell script to automate the process of adding your public key to a remote machine # install shell script to automate the process of adding your public key to a remote machine
install -m 755 contrib/ssh-copy-id %{buildroot}%{_bindir} install -m 755 contrib/ssh-copy-id %{buildroot}%{_bindir}
install -m 644 contrib/ssh-copy-id.1 %{buildroot}%{_mandir}/man1 install -m 644 contrib/ssh-copy-id.1 %{buildroot}%{_mandir}/man1
@ -449,7 +367,7 @@ rpm -q openssh-fips >& /dev/null && DISABLE_RESTART_ON_UPDATE=yes
%attr(0444,root,root) %doc %{_mandir}/man8/* %attr(0444,root,root) %doc %{_mandir}/man8/*
%dir %{_sysconfdir}/slp.reg.d %dir %{_sysconfdir}/slp.reg.d
%config %{_sysconfdir}/slp.reg.d/ssh.reg %config %{_sysconfdir}/slp.reg.d/ssh.reg
/var/adm/fillup-templates/sysconfig.ssh %{_fillupdir}/sysconfig.ssh
%if %{has_fw_dir} %if %{has_fw_dir}
%if %{needs_all_dirs} %if %{needs_all_dirs}
%dir %{_fwdir} %dir %{_fwdir}
@ -461,10 +379,10 @@ rpm -q openssh-fips >& /dev/null && DISABLE_RESTART_ON_UPDATE=yes
%files helpers %files helpers
%defattr(-,root,root) %defattr(-,root,root)
%attr(0755,root,root) %dir %{_sysconfdir}/ssh %attr(0755,root,root) %dir %{_sysconfdir}/ssh
%verify(not mode) %attr(0644,root,root) %config(noreplace) %{_sysconfdir}/ssh/ldap.conf #verify(not mode) %attr(0644,root,root) %config(noreplace) %{_sysconfdir}/ssh/ldap.conf
%attr(0755,root,root) %dir %{_libexecdir}/ssh %attr(0755,root,root) %dir %{_libexecdir}/ssh
%attr(0755,root,root) %{_libexecdir}/ssh/ssh-ldap* #attr(0755,root,root) %{_libexecdir}/ssh/ssh-ldap*
%doc HOWTO.ldap-keys openssh-lpk-openldap.schema openssh-lpk-sun.schema #doc HOWTO.ldap-keys openssh-lpk-openldap.schema openssh-lpk-sun.schema
%files fips %files fips
%defattr(-,root,root) %defattr(-,root,root)