Export (0) Print
Expand All

Microsoft Security Bulletin MS99-055 - Important

Patch Available for "Malformed Resource Enumeration Argument" Vulnerability

Published: December 09, 1999

Version: 1.0

Originally Posted: December 09, 1999

Summary

Microsoft has released a patch that eliminates a security vulnerability in Microsoft® Windows NT®. The vulnerability could cause a Windows NT machine to stop responding to requests for services.

Frequently asked questions regarding this vulnerability can be found at http://www.microsoft.com/technet/security/bulletin/fq99-055.mspx.

Issue

When a specific type of malformed argument is supplied to a resource enumeration request, the Windows NT Service Control Manager can fail. The primary effect of the failure is to cause named pipes to fail, which prevents many other system services from operating. The failure would not cause the machine to crash, and as a result it might not be obvious to the operator that the machine was no longer in service. An affected computer can be put back into service by rebooting.

The resource enumeration request involved in the vulnerability must be made via IPC, so customers can protect against remote attacks by blocking NetBios requests at the firewall. Networks that allow anonymous logons can prevent attacks by disabling the ability for null sessions to submit enumeration requests; this can be done using the RestictAnonymous registry key. Both of these measures are good security practices in any case.

Affected Software Versions

  • Microsoft Windows NT Workstation 4.0
  • Microsoft Windows NT Server 4.0
  • Microsoft Windows NT Server 4.0, Enterprise Edition
  • Microsoft Windows NT Server 4.0, Terminal Server Edition

Vulnerability Identifier: CVE-1999-0980

Patch Availability

Windows NT Workstation, Windows NT Server, and Windows NT Server, Enterprise Edition:

Windows NT Server, Terminal Server Edition:

More Information

Please see the following references for more information related to this issue.

Obtaining Support on this Issue

This is a fully supported patch. Information on contacting Microsoft Technical Support is available at http://support.microsoft.com/contactussupport/?ws=support.

Acknowledgments

Microsoft acknowledges .Rain.Forest.Puppy for bringing this issue to our attention.

Revisions

  • December 09, 1999: Bulletin Created.

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Built at 2014-04-18T13:49:36Z-07:00

Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2015 Microsoft