Trillian SSL Certificate Vulnerability

I. The Vulnerability

Trillian does not check SSL certificate before sending MSN user
credentials. An attacker is able to obtain MSN username and password
with a spoofed certificate and no alert is generated to the user.
This vulnerability was found in Trillian Basic 3.1. Other versions
and/or protocols may also be affected.

II. Disclosure Timeline

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

III. Vendor

http://www.ceruleanstudios.com/

IV. Credit

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