This is the original advisory for the vulnerability described in Microsoft bulletin MS02-037 (not forwarded to the list because of a bad signature). Bulletin and patches available at: http://www.microsoft.com/technet/treeview/default.asp?url=/technet/security/bulletin/MS02-037.asp Dave Ahmad SecurityFocus www.securityfocus.com -----BEGIN PGP SIGNED MESSAGE----- Internet Security Systems Security Brief July 24, 2002 Remote Buffer Overflow Vulnerability in Microsoft Exchange Server Synopsis: Microsoft Exchange Server Internet Mail Connector (IMC) provides SMTP (Simple Mail Transfer Protocol) functionality. It is possible for remote attackers to formulate a request to trigger a buffer overflow on a vulnerable Exchange server. This flaw may allow an attacker to either crash Exchange and block all inbound and outbound email delivery or allow an attacker to gain complete control of the server. Impact: Microsoft Exchange Server is typically exposed to the Internet in order to send and receive email. Successful exploitation of this vulnerability can occur through properly configured firewalls. Microsoft Exchange 5.5 is the most heavily deployed version of Exchange on the Internet. Microsoft reports that over 100 million Exchange licenses have been sold (http://www.microsoft.com/presspass/Press/2002/Jan02/01-23MarketLeaderPR. asp). Affected Versions: Microsoft Exchange Server version 5.5 For the complete ISS X-Force Security Advisory, please visit: http://bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=20759 ______ 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) 2002 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 xforceat_private 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 xforceat_private of Internet Security Systems, Inc. -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBPT+I9DRfJiV99eG9AQG4yQP+K+ULF97rbqhW/UyToZ54/V6fHniVoOwJ +kOEW7JjMD5JFNg1oWfra1W7XfS/ve1BOk33AcvvyoOwNSnvziSpuYVuU1bgAmov O5CanYTC41P/K7ncu6EQRBQR+RAvUDmqkFr/xBa3ky7jFNU2uOAZrIz2Bdmo8Ktk IvKqKaIDHgA= =MV0n -----END PGP SIGNATURE-----
This archive was generated by hypermail 2b30 : Wed Jul 24 2002 - 23:37:32 PDT