0ea48ddd5e
> Subject: 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, via Colin Watson
22 lines
698 B
Diff
22 lines
698 B
Diff
From: Damien Miller <djm@mindrot.org>
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Date: Wed, 13 Apr 2016 10:39:57 +1000
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Subject: ignore PAM environment vars when UseLogin=yes
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If PAM is configured to read user-specified environment variables
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and UseLogin=yes in sshd_config, then a hostile local user may
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attack /bin/login via LD_PRELOAD or similar environment variables
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set via PAM.
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CVE-2015-8325, found by Shayan Sadigh, via Colin Watson
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--- session.c
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+++ session.c
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@@ -1322,7 +1322,7 @@ do_setup_env(Session *s, const char *shell)
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* Pull in any environment variables that may have
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* been set by PAM.
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*/
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- if (options.use_pam) {
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+ if (options.use_pam && !options.use_login) {
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char **p;
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p = fetch_pam_child_environment();
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