bugtraq - Mozilla Firefox 1.0.1 Javascript Images are Draggable

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Date: 26 Feb 2005 05:12:47 -0000
From: Paul <paul@...yhats.cjb.net>
To: bugtraq@...urityfocus.com
Subject: Mozilla Firefox 1.0.1 Javascript Images are Draggable

Author: Paul
Affected Software: Mozilla Firefox 1.0.0, 1.0.1 (tested only on these versions)
Risk: Low/Medium

A minor security vulnerability exists in the way that Firefox handles cross-domain image dragging. Dragging an image into the address bar will cause Firefox to navigate to the image url even if it is a javascript url and the page to be navigated from is in a different domain than the page on which the image is shown. This may potentially allow attackers to steal cookies, etc.

A proof of concept is available at
http://greyhatsecurity.org/vulntests/firefox.htm

Vendor Reccomendations: 
Disable dragging images with javascript urls.

User Reccomendations:
Do not drag images into the address bar.

Paul
http://greyhatsecurity.org