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From: X-Force (xforce_at_iss.net)
Date: Sat Jan 25 2003 - 05:56:03 CST

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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
    ______

    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 xforceiss.net 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
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    Systems X-Force) be held liable for any damages whatsoever arising out
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    Please send suggestions, updates, and comments to: X-Force
    xforceiss.net of Internet Security Systems, Inc.

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