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Windows Media Player Interaction with Local Zone
Secunia Advisory: SA9358
Release Date: 2003-07-25
Last Update: 2003-07-28
Popularity: 13,673 views

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:Microsoft Windows Media Player 6.x
Microsoft Windows Media Player 7.x
Microsoft Windows Media Player 8.x

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Description:
A vulnerability has been identified in Windows Media Player allowing malicious people to interact with the Local Zone.

The problem is that ".asf" files are able to interact with the file system. This could potentially be exploited to place arbitrary files on the users system.

HTML documents such as web pages and emails may embed media files like ".asf" files, these may be played automatically (this depends on your configuration).

This has been reported to affect all versions prior to Windows Media Player 9.

An example "exploit" has been developed, see "Original Advisory".

Solution:
Upgrade to Windows Media Player 9 or uninstall Windows Media Player.

Provided and/or discovered by:
http-equiv, malware.com

Original Advisory:
WARNING: This is a working "exploit":
http://www.malware.com/once.again!.html


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