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Internet Explorer Drag-and-Drop Vulnerability
Secunia Advisory: SA18787
Release Date: 2006-02-14
Popularity: 85,061 views

Critical:
Less critical
Impact: System access
Where: From remote
Solution Status: Unpatched

Software:Microsoft Internet Explorer 5.01
Microsoft Internet Explorer 5.5
Microsoft Internet Explorer 6.x

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CVE reference:CVE-2005-3240


Description:
Matthew Murphy has reported a vulnerability in Internet Explorer, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to error in the timing of drag-and-drop events when certain objects not derived from HTML documents (e.g. files within a folder view) are dragged. This race condition can be exploited to place arbitrary files on a user's system by tricking the user into interacting with a malicious web site.

The vulnerability is related to:
SA12321

Successful exploitation requires a certain amount of timing and user interaction.

Solution:
Disable Active Scripting support for all but trusted sites.

Set the kill bit on the Shell.Explorer control.

Provided and/or discovered by:
Matthew Murphy

Original Advisory:
Matthew Murphy posting on Full-Disclosure:
http://archives.neohapsis.com/archives/fulldisclosure/2006-02/0271.html

Microsoft response:
http://blogs.technet.com/msrc/archive/2006/02/13/419439.aspx

Other References:
SA12321:
http://secunia.com/advisories/12321/


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