Internet Explorer URL parsing vulnerability

[<bugtraq@zapthedingbat.com>]

Internet Explorer URL parsing vulnerability
Vendor Notified 09 December, 2003

# Vulnerability ##########
There is a flaw in the way that Internet Explorer displays URLs in the address 
bar.

By opening a specially crafted URL an attacker can open a page that appears to 
be from a different domain from the current location. 

# Exploit ##########
By opening a window using the http://user@domain nomenclature an attacker can 
hide the real location of the page by including a 0x01 character after the "@" 
character.
Internet Explorer doesn't display the rest of the URL making the page appear to 
be at a different domain. 

# POC ##########
http://www.zapthedingbat.com/security/ex01/vun1.htm

# Tested ##########
Internet Explorer
Version 6.0.2800.1106C0
Updates: SP1, Q810847, Q810351, Q822925, Q330994, Q828750, Q824145

# Credit ##########
Zap The Dingbat
http://www.zapthedingbat.com/