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[ISSForum] ISS Security Brief: Microsoft SQL Slammer Worm Propagation


Internet Security Systems Security Brief
January 25, 2003

Microsoft SQL Slammer Worm Propagation


ISS X-Force has learned of a worm that is spreading via Microsoft SQL
servers. The worm is responsible for large amounts of Internet traffic as 
well as millions of UDP/IP probes at the time of this alert's publication. 
This worm attempts to exploit MS/SQL servers vulnerable to the SQL Server 
Resolution service buffer overflow (CVE CAN-2002-0649). Once a vulnerable 
computer is compromised, the worm will infect that target, randomly select a 
new target, and resend the exploit and propagation code to that host.


Although the Slammer worm is not destructive to the infected host, it does
generate a damaging level of network traffic when it scans for additional 
targets.  A large amount of network traffic is created by the worm, which 
scans random IP addresses for vulnerable servers.

For the complete ISS X-Force Security Advisory, please visit:

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

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