Vulnerability Note VU#222044

Microsoft Windows Media Player fails to properly launch URLs based on Dynamic HTML (DHTML) behaviors

Original Release date: 06 Oct 2003 | Last revised: 06 Oct 2003

Overview

Microsoft Windows Media Player (WMP) permits the embedding of URLs into media files. When launching an embedded URL, a logic error in the WMP URL handling makes it possible to move from a less trusted domain zone into the local computer zone. This vulnerability permits an attacker to execute arbitrary code in the context of the current user.

Description

Microsoft Windows Media Player (WMP) is an application that ships with Microsoft Windows systems. It is used to play various types of media files. WMP will recognize embedded URLs in media files and launch the site specified. When launching an embedded URL, a logic error in the WMP URL handling with respect to DHTML makes it possible to launch the site in the local computer zone, rather than a less trusted zone such as Internet or Restricted. This vulnerability permits an attacker to execute arbitrary code in the context of the current user.

The attacker must get the victim to run the malicious media file in order to exploit this vulnerability. The media file may be embedded in a web site, email message, or downloaded and played by the user.

The following supported versions of Microsoft Windows Media Player are affected according to the Microsoft Knowledgebase article (828026):

  • Microsoft Windows Media Player 9 Series for Windows XP
  • Microsoft Windows Media Player 9 Series for Windows 2000
  • Microsoft Windows Media Player 9 Series for Windows 98 Second Edition
  • Microsoft Windows Media Player 9 Series for Windows Millennium Edition
  • Microsoft Windows Media Player 9 Series for Windows Server 2003
  • Microsoft Windows Media Player for Windows XP Home Edition
  • Microsoft Windows Media Player for Windows XP Professional
  • Microsoft Windows Media Player 7.1
  • Microsoft Windows Media Player 6.4

Impact

A remote attacker may be able to execute arbitrary code on the local system.

Solution

Microsoft has released Knowledgebase article 828026 to address this issue. This issue is also mentioned in MS03-040 which addresses a similar vulnerability in Internet Explorer (VU#668380).

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Microsoft CorporationAffected-06 Oct 2003
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A

References

Credit

This vulnerability was reported in a Microsoft Security Bulletin.

This document was written by Jason A Rafail.

Other Information

  • CVE IDs: Unknown
  • Date Public: 03 Jun 2003
  • Date First Published: 06 Oct 2003
  • Date Last Updated: 06 Oct 2003
  • Severity Metric: 37.46
  • Document Revision: 5

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