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Date: Tue, 8 Nov 2011 16:56:47 +0100
From: Sebastian Krahmer <krahmer@...e.de>
To: oss-security@...ts.openwall.com
Subject: potential OpenPAM vulnerability
Hi,
OpenPAM, until recently, was not filtering the service argument of
pam_start() invocations. This can lead to a root compromise.
Note that Linux-PAM is entirely different as forbids anything with '/'
inside.
Please see
http://c-skills.blogspot.com/2011/11/openpam-trickery.html
for more discussion and PoC.
This most likely affects FreeBSD and Solaris via the kcheckpass
vector.
regards,
Sebastian
--
~ perl self.pl
~ $_='print"\$_=\47$_\47;eval"';eval
~ krahmer@...e.de - SuSE Security Team
---
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Germany
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