Re: Internet explorer 6 on windows XP allows exection of arbitrary code

["Thor Larholm" <thor () pivx com>]

The new addition here is abusing how you are able to load a ressource file,
residing in a  local security zone, into a window object. Service Pack 1 for IE6
did a lot to deter this on most regular window objects, but should have extended
that effort to searchpanes as well. Seeing as the content of a search pane can
be any registered COM extension to IE, perhaps more should be done to completely
separate these from the reach of ordinary scripting.

Combining the mediabar ressource loading with the file-protocol proxy
demonstrates just how effectively one can combine several vulnerabilities to
achieve a higher level of automation in planting and executing files. The media
bar ressource loading, and any other ressource loading technique, can be
combined with any other cross-domain scripting vulnerability to achieve the same
result.

We will definitely see more combinatorial vulnerabilities in the time to come.


Regards
Thor Larholm
PivX Solutions, LLC - Senior Security Researcher
http://www.pivx.com/larholm/unpatched - Unpatched IE vulnerabilities


----- Original Message ----- 
From: "jelmer" <jkuperus () planet nl>
To: <bugtraq () securityfocus com>
Cc: <full-disclosure () lists netsys com>
Sent: Thursday, September 11, 2003 3:31 PM
Subject: [Full-disclosure] Internet explorer 6 on windows XP allows exection of
arbitrary code


> Internet explorer 6 on windows XP allows exection of arbitrary code
>
> DESCRIPTION :
>
> Yesterday Liu Die Yu released a number series of advisories concerning
> internet explorer
> by combining on of these issues with an earlier issue I myself reported a
> while back
> You can construct a specially crafted webpage that can take any action on a
> users system
> including but not limited to, installing trojans, keyloggers, wiping the
> users harddrive etc.
<snip
http://lists.netsys.com/pipermail/full-disclosure/2003-September/009917.html>

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html