-----BEGIN PGP SIGNED MESSAGE----- Internet Security Systems Security Brief October 15, 2003
Vulnerability in Microsoft Windows Messenger Service Synopsis: Microsoft has released a security bulletin (MS03-043) describing a buffer overflow flaw in the Windows "Messenger Service". The "Messenger Service" is enabled by default on all Windows NT, Windows 2000, and Windows XP desktops and servers. It is important to note that the Microsoft Messenger Service is unrelated to Microsoft MSN Messenger. Impact: The vulnerability may allow remote attackers to execute arbitrary code on vulnerable systems with administrator privileges. X-Force believes that the vulnerability is extremely widespread in nature. Vulnerabilities of this nature have led to Internet worms such as "MS Blast/Blaster", "Nachi", and "SQL Slammer". History has shown that vulnerabilities of this magnitude lead almost immediately to exploit tool development by the underground community and extensive and widespread attacks. The vulnerability can be triggered via UDP, leaving open the possibility of extremely rapid worm propagation. Affected Versions: Microsoft Windows NT 4.0 Microsoft Windows NT 4.0, Terminal Server Edition Microsoft Windows 2000 Microsoft Windows XP Microsoft Windows 2003 For the complete ISS X-Force Security Alert, please visit: http://xforce.iss.net/xforce/alerts/id/156 ______ About Internet Security Systems (ISS) Founded in 1994, Internet Security Systems (ISS) (Nasdaq: ISSX) is a pioneer and world leader in software and services that protect critical online resources from an ever-changing spectrum of threats and misuse. Internet Security Systems is headquartered in Atlanta, GA, with additional operations throughout the Americas, Asia, Australia, Europe and the Middle East. Copyright (c) 2003 Internet Security Systems, Inc. All rights reserved worldwide. Permission is hereby granted for the electronic redistribution of this document. It is not to be edited or altered in any way without the express written consent of the Internet Security Systems X-Force. If you wish to reprint the whole or any part of this document in any other medium excluding electronic media, please email [EMAIL PROTECTED] for permission. Disclaimer: The information within this paper may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information. X-Force PGP Key available on MIT's PGP key server and PGP.com's key server, as well as at http://www.iss.net/security_center/sensitive.php Please send suggestions, updates, and comments to: X-Force [EMAIL PROTECTED] of Internet Security Systems, Inc. -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBP42QTjRfJiV99eG9AQE9OQQAjTMjGEvtpFxH0eNwOkscEQf5wBwuJLt3 NNEXs3tDiCZnvxJKs2tARlmdNxLISNCtgNc257tWTAGbYtyveJpwvmUB90BulHPQ 8/b/v2pFhj1Sp9RakGwC/54yTTyqIW4P/pt0ZVWfHDPH3BfJlzbiQ4lZKczYhX8A jsDjZOKVz/Y= =BgJC -----END PGP SIGNATURE----- _______________________________________________ ISSForum mailing list [EMAIL PROTECTED] TO UNSUBSCRIBE OR CHANGE YOUR SUBSCRIPTION, go to https://atla-mm1.iss.net/mailman/listinfo
