Date: Mon, 30 May 2011 15:41:54 +0200 From: Sebastian Krahmer <krahmer@...e.de> To: oss-security@...ts.openwall.com Subject: CVE request: libgnomesu privilege escalation Hi, The /usr/lib/libgnomesu/gnomesu-pam-backend suid binary which belongs to the libgnomesu package is not checking setuid() return values. As a result, two cooperating users, or users with access to guest, cgi or web accounts can run arbitrary commands as root very easily. Attacker just needs to 'su' to this account where he knows the password from inside the second account and take care that enough zombie processes exist at the target account. A patch is attached in our bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=695627 -s -- ~ 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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