bugtraq - Betr.: IE 6 XML Patch Bypass

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Date: Wed, 08 Oct 2003 09:39:31 +0200
From: "Philip Wagenaar" <p.wagenaar@...on.nl>
To: <bugtraq@...urityfocus.com>
Subject: Betr.: IE 6 XML Patch Bypass

I tried tried the proof of concept and indeed it looks like your 'hack' was succesful. I have WinXP with all patches from WindowsUpdate and run Sophos AV.

However, you might want to put up a warning that running the proof of concept will change a on your harddisk.

Met vriendelijke groet,

Philip Wagenaar

AccoN Accountants & Adviseurs
ICT Project Bureau
Postbus 5090
6802 EB Arnhem
The Netherlands

tel. +31 (0)26-3842384
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>>> "Mindwarper *" <mindwarper@...uxmail.org> 07-10-03 16:11 >>>
IE 6 XML Patch Bypass

I have recently been playing around with the xml+windows media player exploit, and it 
seems that even with the new Microsoft patch applied, the vulnerability works.
I have tried it on 7 different people, on win2k and xp, and it worked everytime. 
The 8th person was using DAP (Download Acceselerator Plus), so it asked him if he 
wanted to download the executable. IE hacks like Dybuk Explorer are not affected by 
the vulnerability as well.

Here is a proof-of-concept:

http://mindlock.bestweb.net/wmp.htm 

Note: this only works on people who have media player in C:\Program Files\Windows Media Player\ 
and version 9.

I am not 100% sure, but I believe that microsoft's new patch fixes the 401 bug. 
I tried using "HTTP/1.0 401 EVIL EVIL" so this may have been the reason for the patch bypass.

My solution would be to disable the media bar in IE 6. I explained how to do so in wmp.htm.

-----------------------------|
- Mindwarper                 |
- mindwarper@...uxmail.org   |
- http://mindlock.bestweb.net| 
-----------------------------|

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