6543c1a02b
- update to 8.4p1:
Security
========
* ssh-agent(1): restrict ssh-agent from signing web challenges for
FIDO/U2F keys.
* ssh-keygen(1): Enable FIDO 2.1 credProtect extension when generating
a FIDO resident key.
* ssh(1), ssh-keygen(1): support for FIDO keys that require a PIN for
each use. These keys may be generated using ssh-keygen using a new
"verify-required" option. When a PIN-required key is used, the user
will be prompted for a PIN to complete the signature operation.
New Features
------------
* sshd(8): authorized_keys now supports a new "verify-required"
option to require FIDO signatures assert that the token verified
that the user was present before making the signature. The FIDO
protocol supports multiple methods for user-verification, but
currently OpenSSH only supports PIN verification.
* sshd(8), ssh-keygen(1): add support for verifying FIDO webauthn
signatures. Webauthn is a standard for using FIDO keys in web
browsers. These signatures are a slightly different format to plain
FIDO signatures and thus require explicit support.
* ssh(1): allow some keywords to expand shell-style ${ENV}
environment variables. The supported keywords are CertificateFile,
ControlPath, IdentityAgent and IdentityFile, plus LocalForward and
RemoteForward when used for Unix domain socket paths. bz#3140
* ssh(1), ssh-agent(1): allow some additional control over the use of
ssh-askpass via a new $SSH_ASKPASS_REQUIRE environment variable,
including forcibly enabling and disabling its use. bz#69
* ssh(1): allow ssh_config(5)'s AddKeysToAgent keyword accept a time
OBS-URL: https://build.opensuse.org/request/show/863944
OBS-URL: https://build.opensuse.org/package/show/network/openssh?expand=0&rev=222
135 lines
4.7 KiB
Diff
135 lines
4.7 KiB
Diff
# HG changeset patch
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# Parent 089f4fba0112d410a1bfa74398941f076681d446
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new option UsePAMCheckLocks to enforce checking for locked accounts while
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UsePAM is used
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bnc#708678, FATE#312033
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Index: openssh-8.4p1/auth.c
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===================================================================
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--- openssh-8.4p1.orig/auth.c
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+++ openssh-8.4p1/auth.c
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@@ -113,7 +113,7 @@ allowed_user(struct ssh *ssh, struct pas
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return 0;
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#ifdef USE_SHADOW
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- if (!options.use_pam)
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+ if (!options.use_pam || options.use_pam_check_locks)
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spw = getspnam(pw->pw_name);
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#ifdef HAS_SHADOW_EXPIRE
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if (!options.use_pam && spw != NULL && auth_shadow_acctexpired(spw))
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@@ -133,7 +133,7 @@ allowed_user(struct ssh *ssh, struct pas
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#endif
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/* check for locked account */
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- if (!options.use_pam && passwd && *passwd) {
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+ if ((!options.use_pam || options.use_pam_check_locks) && passwd && *passwd) {
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int locked = 0;
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#ifdef LOCKED_PASSWD_STRING
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Index: openssh-8.4p1/servconf.c
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===================================================================
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--- openssh-8.4p1.orig/servconf.c
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+++ openssh-8.4p1/servconf.c
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@@ -92,6 +92,7 @@ initialize_server_options(ServerOptions
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/* Portable-specific options */
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options->use_pam = -1;
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+ options->use_pam_check_locks = -1;
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/* Standard Options */
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options->num_ports = 0;
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@@ -300,6 +301,8 @@ fill_default_server_options(ServerOption
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/* Portable-specific options */
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if (options->use_pam == -1)
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options->use_pam = 0;
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+ if (options->use_pam_check_locks == -1)
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+ options->use_pam_check_locks = 0;
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/* Standard Options */
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if (options->num_host_key_files == 0) {
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@@ -501,7 +504,7 @@ fill_default_server_options(ServerOption
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typedef enum {
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sBadOption, /* == unknown option */
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/* Portable-specific options */
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- sUsePAM,
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+ sUsePAM, sUsePAMChecklocks,
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/* Standard Options */
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sPort, sHostKeyFile, sLoginGraceTime,
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sPermitRootLogin, sLogFacility, sLogLevel,
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@@ -553,8 +556,10 @@ static struct {
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/* Portable-specific options */
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#ifdef USE_PAM
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{ "usepam", sUsePAM, SSHCFG_GLOBAL },
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+ { "usepamchecklocks", sUsePAMChecklocks, SSHCFG_GLOBAL },
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#else
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{ "usepam", sUnsupported, SSHCFG_GLOBAL },
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+ { "usepamchecklocks", sUnsupported, SSHCFG_GLOBAL },
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#endif
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{ "pamauthenticationviakbdint", sDeprecated, SSHCFG_GLOBAL },
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/* Standard Options */
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@@ -1318,6 +1323,9 @@ process_server_config_line_depth(ServerO
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case sUsePAM:
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intptr = &options->use_pam;
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goto parse_flag;
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+ case sUsePAMChecklocks:
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+ intptr = &options->use_pam_check_locks;
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+ goto parse_flag;
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/* Standard Options */
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case sBadOption:
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Index: openssh-8.4p1/servconf.h
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===================================================================
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--- openssh-8.4p1.orig/servconf.h
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+++ openssh-8.4p1/servconf.h
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@@ -195,6 +195,7 @@ typedef struct {
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char *adm_forced_command;
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int use_pam; /* Enable auth via PAM */
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+ int use_pam_check_locks; /* internally check for locked accounts even when using PAM */
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int permit_tun;
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Index: openssh-8.4p1/sshd_config.0
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===================================================================
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--- openssh-8.4p1.orig/sshd_config.0
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+++ openssh-8.4p1/sshd_config.0
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@@ -1032,6 +1032,14 @@ DESCRIPTION
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If UsePAM is enabled, you will not be able to run sshd(8) as a
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non-root user. The default is no.
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+ UsePAMCheckLocks
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+ When set to ``yes'', the checks whether the account has been
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+ locked with `passwd -l' are performed even when PAM authentication
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+ is enabled via UsePAM. This is to ensure that it is not possible
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+ to log in with e.g. a public key (in such a case PAM is used only
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+ to set up the session and some PAM modules will not check whether
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+ the account is locked in this scenario). The default is ``no''.
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+
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VersionAddendum
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Optionally specifies additional text to append to the SSH
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protocol banner sent by the server upon connection. The default
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Index: openssh-8.4p1/sshd_config.5
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===================================================================
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--- openssh-8.4p1.orig/sshd_config.5
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+++ openssh-8.4p1/sshd_config.5
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@@ -1718,6 +1718,18 @@ is enabled, you will not be able to run
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as a non-root user.
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The default is
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.Cm no .
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+.It Cm UsePAMCheckLocks
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+When set to
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+.Dq yes
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+, the checks whether the account has been locked with
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+.Pa passwd -l
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+are performed even when PAM authentication is enabled via
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+.Cm UsePAM .
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+This is to ensure that it is not possible to log in with e.g. a
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+public key (in such a case PAM is used only to set up the session and some PAM
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+modules will not check whether the account is locked in this scenario). The
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+default is
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+.Dq no .
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.It Cm VersionAddendum
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Optionally specifies additional text to append to the SSH protocol banner
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sent by the server upon connection.
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