Hello, I've been reading this thread and it remembered me a similar case (I don't know if it really classifies as a bug, so I haven't reported it). Once I had to embed a non-secure object coming from another server to my secure page (only available over https), then i did the following: i wrote a simple redirect script like this <?php header("Location:".$url); ?> and on the real page asked object through that script like this <img src="redirect.php?url=http://non.secure.server"> Both IE and Mozilla displayed this object without any warning. August >-----Original Message----- >From: security@e-matters.de [mailto:security@e-matters.de] >Sent: Saturday, December 22, 2001 4:37 PM >To: bugtraq@securityfocus.com >Subject: IE https certificate attack > > > e-matters GmbH > www.e-matters.de > > -= Security Advisory =- > > > > Advisory: Interner Explorer HTTPS certificate attack > Release Date: 2001/12/22 Author: Stefan Esser >[s.esser@e-matters.de] > > Application: Microsoft Internet Explorer 5.0/5.5/6.0 > Severity: Vulnerability in IE's SSL Certificate handling allows > undetected SSL Man-In-The-Middle attacks > Risk: Very High >Vendor Status: Notified > Reference: http://security.e-matters.de/advisories/012001.html > _________________________________________________________________ Join the world’s largest e-mail service with MSN Hotmail. http://www.hotmail.com