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Internet Explorer URL parsing vulnerability



This exploit also applies to the Macintosh version of Explorer v5.2.3(5815.1)

From: <bugtraq@xxxxxxxxxxxxxxxxx>
To: bugtraq@xxxxxxxxxxxxxxxxx
Subject: Internet Explorer URL parsing vulnerability



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/

--

john noerenberg
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  According to a [1200-page!] study just released by researchers
   at Duke University, life is too hard.
  -- Ian Frazier, "Researchers Say", New Yorker, Dec 2002
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