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openssh/openssh-7.2p2-allow_DSS_by_default.patch

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Accepting request 407066 from home:pcerny:factory - enable support for SSHv1 protocol and discourage its usage (bsc#983307) - enable DSA by default for backward compatibility and discourage its usage (bsc#983784) [openssh-7.2p2-allow_DSS_by_default.patch] - upgrade to 7.2p2 upstream package without any SUSE patches Distilled upstream log: - OpenSSH 6.7 Potentially-incompatible changes: * sshd(8): The default set of ciphers and MACs has been altered to remove unsafe algorithms. In particular, CBC ciphers and arcfour* are disabled by default. The full set of algorithms remains available if configured explicitly via the Ciphers and MACs sshd_config options. * sshd(8): Support for tcpwrappers/libwrap has been removed. * OpenSSH 6.5 and 6.6 have a bug that causes ~0.2% of connections using the curve25519-sha256@libssh.org KEX exchange method to fail when connecting with something that implements the specification correctly. OpenSSH 6.7 disables this KEX method when speaking to one of the affected versions. New Features: * ssh(1), sshd(8): Add support for Unix domain socket forwarding. A remote TCP port may be forwarded to a local Unix domain socket and vice versa or both ends may be a Unix domain socket. * ssh(1), ssh-keygen(1): Add support for SSHFP DNS records for ED25519 key types. OBS-URL: https://build.opensuse.org/request/show/407066 OBS-URL: https://build.opensuse.org/package/show/network/openssh?expand=0&rev=107
2016-07-07 09:07:23 +02:00
# HG changeset patch
# Parent 2730f36bee0d6e141d8391b414a702e1add5a853
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 .
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