Title: Microsoft Windows Media Player .WMZ Arbitrary Java Applet Vulnerability
Severity: MODERATE
Description:
A vulnerability has been reported in Microsoft Windows Media Player 7 which is exploitable through Internet Explorer and Java.
Skins are downloadable files which change the appearance of a program's user interface. Skins for Windows Media Player are installed to a known location: "C:/Program files/Windows Media Player/Skins/skin.wmz".
As a result, a remote HTML document, visited by the victim user, can lead the user's browser to download an arbitrary file matching the the name 'skin.wmz' to this known location.
A malicious remote user could exploit this to upload a file containing executable java code disguised as a Windows Media Player skin file.
An applet tag in the remote HTML document can then execute the 'skin.wmz' file as Java code. Properly exploited, this could provide an attacker with complete control of the vulnerable system. On multiuser Windows NT or 2000 systems, this vulnerability can only provide the attacker with access to the system that is within the security context of the user who was exploited.
Affected Products:
- Microsoft Windows Media Player 7.0.0
References:
- Microsoft: Frequently Asked Questions: Microsoft Security Bulletin (MS01-010)
- Microsoft: Microsoft Security Bulletin (MS01-010)
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