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Microsoft Windows 2000 Remote Installation Service Remote Code Execution Vulnerability

Risk

High

Date Discovered

December 12, 2006

Description

Microsoft Windows is prone to a remote code-execution vulnerability. A remote attacker may exploit this issue to execute arbitrary code with SYSTEM-level privileges. Successful exploits will result in a complete compromise of vulnerable computers. Note that this issue affects only Microsoft Windows 2000. Note also that the Remote Installation Services (RIS) is not installed by default on Microsoft Windows 2000.

Technologies Affected

  • Avaya Agent Access
  • Avaya Basic Call Management System Reporting Desktop
  • Avaya Basic Call Management System Reporting Desktop server
  • Avaya CMS Supervisor
  • Avaya CVLAN
  • Avaya Computer Telephony
  • Avaya Contact Center Express
  • Avaya Enterprise Management
  • Avaya IP Agent
  • Avaya IP Softphone
  • Avaya Integrated Management
  • Avaya Interaction Center
  • Avaya Interaction Center - Voice Quick Start
  • Avaya Modular Messaging (MAS)
  • Avaya Network Reporting
  • Avaya OctelAccess(r) Server
  • Avaya OctelDesignerTM
  • Avaya Operational Analyst
  • Avaya Outbound Contact Management
  • Avaya Speech Access
  • Avaya Unified Communication Center
  • Avaya Unified Messenger (r)
  • Avaya VPNmanagerTM Console
  • Avaya Visual Messenger TM
  • Avaya Visual Vector Client
  • Avaya Web Messenger
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Advanced Server SP1
  • Microsoft Windows 2000 Advanced Server SP2
  • Microsoft Windows 2000 Advanced Server SP3
  • Microsoft Windows 2000 Advanced Server SP4
  • Microsoft Windows 2000 Datacenter Server
  • Microsoft Windows 2000 Datacenter Server SP1
  • Microsoft Windows 2000 Datacenter Server SP2
  • Microsoft Windows 2000 Datacenter Server SP3
  • Microsoft Windows 2000 Datacenter Server SP4
  • Microsoft Windows 2000 Professional
  • Microsoft Windows 2000 Professional SP1
  • Microsoft Windows 2000 Professional SP2
  • Microsoft Windows 2000 Professional SP3
  • Microsoft Windows 2000 Professional SP4
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Server SP1
  • Microsoft Windows 2000 Server SP2
  • Microsoft Windows 2000 Server SP3
  • Microsoft Windows 2000 Server SP4

Recommendations

Block external access at the network boundary, unless external parties require service.

Block access to affected computers at the network perimeter. Allow only trusted computers and networks to have access to the resources. This includes blocking unauthorized access to UDP port 69.

Disable all unnecessary services.

Disable the TFTP service if it is not needed.
Microsoft has released an update to address this vulnerability on supported platforms. Please see the referenced bulletin for more information.

Credits

Nicolas Ruff is credited with the discovery of this vulnerability.
Copyright © Symantec Corporation.
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com.

Disclaimer
The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.
Symantec, Symantec products, Symantec Security Response, and secure@symantec.com are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.

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