bugtraq - [SCAN Associates Security Advisory] vbulletin 3.0.6 and below php code injection

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Message-ID: <opsmi1b0m8smddlu@sampah>
Date: Mon, 21 Feb 2005 11:01:02 +0800
From: pokley <pokleyzz@...n-associates.net>
To: "bugtraq@...urityfocus.com" <bugtraq@...urityfocus.com>
Subject: [SCAN Associates Security Advisory] vbulletin 3.0.6 and below php code injection

Summary: vbulletin 3.0.6 and below php code injection

Description
===========
vBulletin is a powerful, scalable and fully customizable forums package  
for your web site. It has been written using the Web's quickest-growing  
scripting language; PHP, and is complimented with a highly efficient and  
ultra fast back-end database engine built using MySQL.

Details
=======
User may inject php code using "nested variable" into template name when   
"Add Template Name in HTML Comments" is enable. This option is not enable  
by default and is not recomended by vbulletin for production environment.  
The problem occur when user may supply partial template name through  
misc.php.

Workaround
==========
Disable "Add Template Name in HTML Comments" option.

Proof of concept
================
http://site.com/misc.php?do=page&template={${phpinfo()}}

Vendor Response
===============
17th February 2005 - Vulnerability found
18th February 2005 - vbulletin developer informed
19th February 2005 - vbulletin developer confirmed
20th February 2005 - Fix Available from vbulletin team