bugtraq - XSS vulnerability in allinta CMS

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Message-Id: <201008091541.o79Ffxh8030235@htbridge.ch>
Date: Mon, 9 Aug 2010 17:41:59 +0200 (CEST)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: XSS vulnerability in allinta CMS

Vulnerability ID: HTB22531
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_allinta_cms_2.html
Product: Allinta CMS
Vendor: Allinta
Vulnerable Version: Current at 22.07.2010 and Probably Prior Versions
Vendor Notification: 26 July 2010 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: Medium 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) 

Vulnerability Details:
User can execute arbitrary JavaScript code within the vulnerable application.

The vulnerability exists due to failure in the "menuCodeAE.asp" script to properly sanitize user-supplied input in "i" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data.

An attacker can use browser to exploit this vulnerability. The following PoC is available:

http://host/path_to_admin/menuCodeAE.asp?m=edit&i=185%22%3E%3Cscript%3Ealert%28document.cookie%29%3C/script%3E