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TITLE:
vBulletin MCP Cross-Site Scripting Vulnerability

SECUNIA ADVISORY ID:
SA30755

VERIFY ADVISORY:
http://secunia.com/advisories/30755/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
vBulletin 3.x
http://secunia.com/product/3212/

DESCRIPTION:
A vulnerability has been reported in vBulletin, which can be
exploited by malicious people to conduct cross-site scripting
attacks.

Input passed to the "redirect" parameter in modcp/index.php is not
properly sanitised before being returned to the user. This can be
exploited to execute arbitrary HTML and script code in a user's
browser session in context of an affected site.

NOTE: Reportedly, this can be exploited to inject and execute
arbitrary PHP code on an affected system, but requires that the
administrator is logged in or logs in e.g. when following a specially
crafted link.

The vulnerability is reported in versions 3.7.1 PL1, 3.6.10 PL1, and
all previous 3.x versions.

SOLUTION:
Update to version 3.7.1 PL2 or 3.6.10 PL2.

PROVIDED AND/OR DISCOVERED BY:
Jessica Hope and anonymous persons

ORIGINAL ADVISORY:
vBulletin:
http://www.vbulletin.com/forum/showthread.php?t=275889

Jessica Hope:
http://seclists.org/fulldisclosure/2008/Jun/0262.html

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About:
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