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Date: Sat, 04 May 2013 17:22:36 -0500
From: John Lightsey <john@...nuts.net>
To: oss-security@...ts.openwall.com
Subject: CVE Request: YaBB 2.5.2 and earlier arbitrary code execution

Hi everyone,

Yet another Bulletin Board (YaBB) 2.5.2 and earlier allow arbitrary code
execution through a combination of file uploads with predictable
locations and unsanitized use of the "guestlanguage" cookie in file paths.

This problem is similar to CVE-2007-3295.


References:

http://www.yabbforum.com/community/YaBB.pl?num=1367511332

http://www.carsten-dalgaard.dk/cgi-bin/yabb2/YaBB.pl?num=1367511256


The vulnerability can be mitigated by setting the $enable_guestlanguage
variable to 0 in the YaBB configuration or applying the patch provided
in the links.


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