bugtraq - CsForum v0.8 - Cross Site Scripting Vulnerability

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Date: Sun, 08 Apr 2012 05:07:33 +0200
From: Research <research@...nerability-lab.com>
To: bugs@...uritytracker.com, bugtraq@...urityfocus.com
Subject: CsForum v0.8 - Cross Site Scripting Vulnerability

Title:
======
CsForum v0.8 - Cross Site Scripting Vulnerability

Date:
=====
2012-04-05

References:
===========
http://www.vulnerability-lab.com/get_content.php?id=496

VL-ID:
=====
496

Introduction:
=============
Forum very simple installation, this script is very light and yet it has several functionalities such as marking of read messages 
display tree with sending mail in case of response. It is also very easy to integrate in your site thanks to the insertion of pages 
of your choice before and after the forum header.php and footer.php

(Copy of the Vendor Homepage: http://www.comscripts.com/scripts/php.cs-forum.643.html )

Abstract:
=========
A Vulnerability Laboratory Researcher discovered  a Cross Site Scripting Vulnerability on CsForum v0.8 application.

Report-Timeline:
================
2012-04-08:	Public or Non-Public Disclosure

Status:
========
Published

Exploitation-Technique:
=======================
Remote

Severity:
=========
Low

Details:
========
A client side cross site scripting vulnerability is detected on the CsForum v0.8 application.
The vulnerability allows an attacker with privileged user account to hijack customer/moderator/admin sessions with high required user inter 
action. Successful exploitation can result in account steal or client side context manipulation when processing affected module
application requests.

Vulnerable Module(s):
                                      [+] read.php

Picture(s):
                                      ../1.png

Proof of Concept:
=================
The vulnerability can be exploited by remote attacker with medium required user inter action. For demonstration or reproduce ...

String : "><img src="tester1337.png" onerror=alert("CROSS-SITE-SCRIPTING2") />

.Proof :
<img src="tester1337.png" onerror=alert("cross-site-scripting2") />" title="Site de l'auteur">

Example : http://alain.lc.free.fr/csforum8/read.php?id=527&debut=8

Risk:
=====
The security risk of the client side cross site scripting vulnerability is estimated as low.

Credits:
========
Vulnerability Research Laboratory   -   Chokri B.A. (Me!ster)

Disclaimer:
===========
The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties, 
either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-
Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business 
profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some 
states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation 
may not apply. Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability-
Lab. Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of 
other media, are reserved by Vulnerability-Lab or its suppliers.

    						Copyright © 2012 Vulnerability-Lab

-- 
VULNERABILITY RESEARCH LABORATORY TEAM
Website: www.vulnerability-lab.com
Mail: research@...nerability-lab.com