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TITLE:
Simple Machines Forum Session Fixation Vulnerability

SECUNIA ADVISORY ID:
SA25139

VERIFY ADVISORY:
http://secunia.com/advisories/25139/

CRITICAL:
Less critical

IMPACT:
Hijacking

WHERE:
>From remote

SOFTWARE:
Simple Machines Forum 1.x
http://secunia.com/product/5285/

DESCRIPTION:
David Vieira-Kurz has discovered a vulnerability in Simple Machines
Forum, which can be exploited by malicious people to conduct session
fixation attacks.

The vulnerability is caused due to an error in the handling of
sessions and can be exploited to hijack another user's session by
tricking the user into logging in after following a specially crafted
link.

The vulnerability is confirmed in version 1.1.2. Other versions may
also be affected.

SOLUTION:
Do not follow links from untrusted sources.

PROVIDED AND/OR DISCOVERED BY:
David Vieira-Kurz

ORIGINAL ADVISORY:
http://www.majorsecurity.de/index_2.php?major_rls=major_rls47

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