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Malformed Embedded Windows Media Player 7 "OCX Attachment"

Vulnerability



USSR Advisory Code:  USSR-2000053



Public Disclosure Date:



September 26, 2000



Vendors Affected:



Microsoft Corporation

http://www.microsoft.com



Systems Affected:



Outlook 2000

Microsoft Windows Media Player 7



Problem:



The USSR Team has found a problem in the Windows Media Player 7

ActiveX control, which could be used in a denial of service attack

against RTF-enabled e-mail clients such as Outlook 2000 and Outlook

Express.



If the affected control were programmatically embedded into an RTF

mail and then sent to another user, the user's mail client would

fail when he closed/moved the mail.



Note:



We take no responsibility for this code.  It is for educational

purposes only.



Exploit:





Malformed WMP Embedded RTF/Email Spawner.



Windows Console Version:

http://www.ussrback.com/wmp/wmpoutlook.exe



Windows Console Version Source:

http://www.ussrback.com/wmp/wmpoutlook.zip





Data of Vendor Notification:



08-19-2000



Status:



More Information:



http://www.microsoft.com/technet/security/bulletin/ms00-068.asp



Microsoft Security Bulletin MS00-068: Frequently Asked Questions,

http://www.microsoft.com/technet/security/bulletin/fq00-068.asp



http://www.microsoft.com/windows/windowsmedia/en/default.asp



Fix:



http://www.microsoft.com/Downloads/Release.asp?ReleaseID=24421



Related Links:



Underground Security Systems Research:

http://www.ussrback.com



CrunchSp Product:

http://www.crunchsp.com





Copyright (c) 1999-2000 Underground Security Systems Research.

Permission is hereby granted for the redistribution of this alert

electronically. It is not to be edited in any way without explicit

consent of USSR. If you wish to reprint whole or any part of this

alert in any other medium excluding electronic medium, please e-mail

labs@ussrback.com for permission.



Disclaimer:

The information within this paper may change without notice. We may

not be held responsible for the use and/or potential effects of these

programs or advisories.  Use them and read them at your own risk or

not at all. You solely are responsible for this judgment.



Feedback:



If you have any questions, comments, concerns, updates, or

suggestions

please feel free to send them to:



Underground Security Systems Research

mail:labs@ussrback.com

http://www.ussrback.com



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