From: X-Force (xforceiss.net)
Date: Wed Jul 16 2003 - 15:47:18 CDT

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Internet Security Systems Security Brief
July 16, 2003

Flaw in Microsoft Windows RPC Implementation

Synopsis:

Microsoft has published a security bulletin describing a buffer overflow
vulnerability in the Windows RPC (Remote Procedure Call) interface. The
RPC protocol is integral to the normal operation of many networking
technologies within the Windows operating system. The buffer overflow
affects the DCOM (Distributed Component Object Model) interface on port
TCP/135.

Impact:

Attackers may exploit this vulnerability by sending a specially-crafted
RPC packet to port TCP/135 on a vulnerable target. Successful exploitation
of this vulnerability will result in complete control of the target
system. Many security-conscious administrators know to block this service
at the perimeter, but open networks and personal computers used by
individuals may be vulnerable to attack.

Affected Versions:

Microsoft Windows NT 4.0
Microsoft Windows NT 4.0 Terminal Services Edition
Microsoft Windows 2000
Microsoft Windows XP
Microsoft Windows Server 2003

Note: All major releases and Service Pack levels of the platforms above
are vulnerable.

For the complete ISS X-Force Security Alert, please visit:
http://xforce.iss.net/xforce/alerts/id/147
______

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.

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