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TITLE:
FUDforum "Tree View" Security Bypass Vulnerability

SECUNIA ADVISORY ID:
SA16414

VERIFY ADVISORY:
http://secunia.com/advisories/16414/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass

WHERE:
>From remote

SOFTWARE:
FUDforum 2.x
http://secunia.com/product/5530/

DESCRIPTION:
Alexander Heidenreich has discovered a vulnerability in FUDforum,
which can be exploited by malicious people to bypass certain security
restrictions.

Input passed to the "mid" parameter isn't properly validated before
being used to retrieve a forum post. This can be exploited to view
messages that are posted in private forums.

Successful exploitation requires that the "Tree View" feature is
enabled.

The vulnerability has been confirmed in version 2.6.15. Other
versions may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly validated.

PROVIDED AND/OR DISCOVERED BY:
Alexander Heidenreich

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About:
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http://secunia.com/about_secunia_advisories/


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