full-disclosure - FWD: Internet Explorer URL parsing vulnerability

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Message-ID: <20031209180355.6385.qmail@web60806.mail.yahoo.com>
From: sgmasood at yahoo.com (S G Masood)
Subject: FWD: Internet Explorer URL parsing vulnerability

Zap The Dingbat http://www.zapthedingbat.com/ posted
this to Bugtraq:

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@...ain
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/

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