Gizmo SSL Certificate Vulnerability

I. The Vulnerability

Gizmo does not check SSL certificate before sending user credentials.
An attacker is able to obtain username and password with a spoofed certificate and no alert is generated to the user. This vulnerability was found in Gizmo for Linux 3.1.0.79. Other versions may also be affected.

II. Disclosure Timeline

06/19/2009 - Vendor contact.
06/26/2009 - No answer. Public Disclosure.

III. Vendor

http://gizmo5.com/

IV. Credit

Gabriel Menezes Nunes <gab.mnunes [at] gmail (dot) com>