ISS Security Brief: Microsoft SQL Slammer Worm Propagation

[X-Force <xforce () iss net>]

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Internet Security Systems Security Brief
January 25, 2003

Microsoft SQL Slammer Worm Propagation

Synopsis:

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.

Impact:

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:
http://bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=21824
______

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