Microsoft Windows Media Player .WMS Arbitrary Script Vulnerability

Windows Media Player is an application used for digital audio, and video content viewing.

It is possible for a user running Windows Media Player 7 to enable a skin (.wms) file and unknowingly execute an embedded malicious script. When a user attempts to retrieve a skin (.wms) file it is downloaded and resides on the user's local machine. If Windows Media Player is run with the malicious skin enabled, the Active X component would allow any arbitrary action to be achieved. Depending on internet security settings this vulnerability is also exploitable if the skin file in question resides on a web site. The script could automatically launch when a user visits the web site.

Execution of arbitrary scripts could make it possible for the malicious host to gain rights equivalent to those of the current user.


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