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Microsoft Security Bulletin (MS00-053)
From: Microsoft Product Security <secnotif () MICROSOFT COM>
Date: Wed, 2 Aug 2000 09:20:24 -0700
The following is a Security Bulletin from the Microsoft Product Security Notification Service. Please do not reply to this message, as it was sent from an unattended mailbox. ******************************** -----BEGIN PGP SIGNED MESSAGE----- Microsoft Security Bulletin (MS00-053) - -------------------------------------- Patch Available for "Service Control Manager Named Pipe Impersonation" Vulnerability Originally posted: August 02, 2000 Summary ======= Microsoft has released a patch that eliminates a security vulnerability in Microsoft(r) Windows 2000(r). The vulnerability could allow a user logged onto a Windows 2000 machine from the keyboard to become an administrator on the machine. Frequently asked questions regarding this vulnerability and the patch can be found at http://www.microsoft.com/technet/security/bulletin/fq00-053.asp Issue ===== The Service Control Manager (services.exe) is an administrative tool provided in Windows 2000 that allows system services (Server, Workstation, Alerter, ClipBook, etc.) to be created or modified. The SCM creates a named pipe for each service as it starts, however, should a malicious program predict and create the named pipe for a specific service before the service starts, the program could impersonate the privileges of the service. This could allow the malicious program to run in the context of the given service, with either specific user or LocalSystem privileges. The primary risk from this vulnerability is that a malicious user could exploit this vulnerability to gain additional privileges on the local machine. A malicious user would require the ability to log onto the target machine interactively and run arbitrary programs in order to exploit this vulnerability, and as a result, workstations and terminal servers would be at greatest risk. Affected Software Versions ========================== - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Server - Microsoft Windows 2000 Advanced Server Patch Availability ================== - Windows 2000: http://www.microsoft.com/Downloads/Release.asp?ReleaseID=23432 Note: Additional security patches are available at the Microsoft Download Center More Information ================ Please see the following references for more information related to this issue. - Frequently Asked Questions: Microsoft Security Bulletin MS00-053, http://www.microsoft.com/technet/security/bulletin/fq00-053.asp - Microsoft Knowledge Base article Q269523 discusses this issue and will be available soon. - Microsoft TechNet Security web site, http://www.microsoft.com/technet/security/default.asp Obtaining Support on this Issue =============================== This is a fully supported patch. Information on contacting Microsoft Product Support Services is available at http://support.microsoft.com/support/contact/default.asp. Acknowledgments =============== Microsoft thanks the R&D department of Guardent (www.guardent.com) for reporting this issue to us and working with us to protect customers. Revisions ========= August 02, 2000: 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. Last Updated August 2, 2000 (c) 2000 Microsoft Corporation. All rights reserved. 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