Secunia

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

Deep Links
Links available in Customer Area