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TITLE:
RSBAC User Management Authentication Bypass Vulnerability

SECUNIA ADVISORY ID:
SA26147

VERIFY ADVISORY:
http://secunia.com/advisories/26147/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass

WHERE:
>From remote

SOFTWARE:
RSBAC 1.x
http://secunia.com/product/3649/

DESCRIPTION:
A vulnerability has been reported in RSBAC, which can be exploited by
malicious people to bypass certain security restrictions.

The vulnerability is caused due to the incorrect use of the Linux
Kernel Crypto API within certain User Management modules (e.g.
rsbac_auth, pam_sbac.so, and pam_login). This can be exploited to
bypass authentication by logging in with any password.

The vulnerability is reported in versions 1.3.3 and 1.3.4 running a
Linux 2.6.20 or later kernel.

SOLUTION:
Update to version 1.3.5.

PROVIDED AND/OR DISCOVERED BY:
Reported in a bug by enb.

ORIGINAL ADVISORY:
http://bugtracker.rsbac.org/bug_view_page.php?bug_id=97

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