search menu icon-carat-right cmu-wordmark

CERT Coordination Center

Microsoft Windows Media Player ActiveX control allows execution of javascript in "already open" frames

Vulnerability Note VU#879920

Original Release Date: 2002-09-27 | Last Revised: 2003-03-26

Overview

A vulnerability in the Windows Media Player may allow remote attackers to view the contents of local files on the victim's computer.

Description

Using the "LaunchURL" method of the Windows Media Player ActiveX control, a web page author may be able to circumvent the frame security features normally present in Internet Explorer. It appears that javascript executed via the "LaunchURL" method executes in the frame associated with the Media Player control. Portions of the document object model that would not normally be accessible to the javascript are accessible when executed in this context.

This vulnerability has not been confirmed to exist or operate as described, but seems credible.

Impact

A victim who visits a web page may expose local files to an attacker who created the malicious web page. This vulnerability is also reported to allow attackers to execute arbitrary code on the victim's system, but this has not been confirmed.

Solution

The CERT/CC is currently unaware of a practical solution to this problem.

Vendor Information

879920
 

Microsoft Corporation Unknown

Updated:  July 16, 2002

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


CVSS Metrics

Group Score Vector
Base
Temporal
Environmental

References

Acknowledgements

Georgi Guninski discovered this vulnerability.

This document was written by Cory F. Cohen.

Other Information

CVE IDs: None
Severity Metric: 7.65
Date Public: 2001-01-01
Date First Published: 2002-09-27
Date Last Updated: 2003-03-26 20:43 UTC
Document Revision: 11

Sponsored by CISA.