bugtraq - Internet Explorer URL parsing vulnerability

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Date: Tue, 9 Dec 2003 10:15:10 -0800
From: "John W. Noerenberg II" <jwn2@...lcomm.com>
To: bugtraq@...urityfocus.com
Subject: Internet Explorer URL parsing vulnerability


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

>From: <bugtraq@...thedingbat.com>
>To: bugtraq@...urityfocus.com
>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@...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/

-- 

john noerenberg
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