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 --- SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg) Maxfeldstraße 5 90409 Nürnberg Germany
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