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Microsoft Security Bulletin (MS00-063)
From: Microsoft Product Security <secnotif () MICROSOFT COM>
Date: Tue, 5 Sep 2000 18:57:02 -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 (MS00-063) - -------------------------------------- Patch Available for "Invalid URL" Vulnerability Originally posted: September 05, 2000 Summary ======= Microsoft has released a patch that eliminates a security vulnerability in Microsoft(r) Internet Information Server (IIS). The vulnerability could enable a malicious user to prevent an affected web server from providing useful service. Frequently asked questions regarding this vulnerability and the patch can be found at http://www.microsoft.com/technet/security/bulletin/fq00-063.asp Issue ===== If an affected web server received a particular type of invalid URL, it could, under certain conditions, start a chain of events that would culminate in an invalid memory request that would cause the IIS service to fail. This would prevent the server from providing web services. This vulnerability does not provide the opportunity to compromise any data on the server or to usurp any administrative privileges on the server. An affected machine could be put back into service by restarting the IIS service. Although the effect of the vulnerability manifests itself through IIS, the underlying problem actually lies within Windows NT 4.0. Microsoft engineers worked extensively to identify scenarios for exploiting the vulnerability directly through Windows NT 4.0, but did not find any - the only scenarios identified to date involve IIS. Nevertheless, it is possible that scenarios for exploiting the vulnerability through Windows NT 4.0 do exist, and as a result, we recommend that customers using Windows NT 4.0 consider applying the patch. Affected Software Versions ========================== - Microsoft Internet Information Server 4.0 Note: As noted above in "Issue", the root cause of this vulnerability lies in Windows NT 4.0, and Microsoft recommends that customers using Windows NT 4.0 consider applying the patch. Patch Availability ================== - Microsoft Windows NT 4.0 Workstation, Server and Server, Enterprise Edition: http://www.microsoft.com/Downloads/Release.asp?ReleaseID=24079 - Microsoft Windows NT 4.0 Server, Terminal Server Edition: To be released shortly 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 MS00-063, http://www.microsoft.com/technet/security/bulletin/fq00-063.asp - Microsoft Knowledge Base article Q271652 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 Peter Grundl of VIGILANTe (http://www.vigilante.com) for reporting this issue to us and working with us to protect customers. Revisions ========= - September 05, 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 September 05, 2000 (c) 2000 Microsoft Corporation. All rights reserved. Terms of use. -----BEGIN PGP SIGNATURE----- Version: PGP Personal Privacy 6.5.3 iQEVAwUBObWkII0ZSRQxA/UrAQEcjwf9HQXiovaMrUqXJBLwW1bvhNysFyLmTLxI WoVGk27ecWJ3RO2pzOPhGLxol0XjXb5XyNncJw1HQrQW8ymmql0tQhzDje3kLQAT U7uN3TBeRS6hU1bmo5w6WKdZdr+YtMFdkrFATPfHdmfDo3tlayDCgFxrmY0nZ7d5 Q1Z1YRGY4UGDp0/Gvw2Yqcq30xyZL3dyv4adq+rATTZs7MGvYjTDGbFXxKAPd9oe 3YMPjFhcIyrSl8ICimqeZUb9we6XhtI0YH/XV5kGP9SjUOL88lRt2CGRZ4QnIunJ aMtZYInnPS9A2i8RBiWl+lC8VnlxnTRCBo1Cg/LX19b2A9HyZEeDIQ== =ApBw -----END PGP SIGNATURE----- ******************************************************************* You have received this e-mail bulletin as a result of your registration to the Microsoft Product Security Notification Service. You may unsubscribe from this e-mail notification service at any time by sending an e-mail to MICROSOFT_SECURITY-SIGNOFF-REQUEST () ANNOUNCE MICROSOFT COM The subject line and message body are not used in processing the request, and can be anything you like. To verify the digital signature on this bulletin, please download our PGP key at http://www.microsoft.com/technet/security/notify.asp. For more information on the Microsoft Security Notification Service please visit http://www.microsoft.com/technet/security/notify.asp. For security-related information about Microsoft products, please visit the Microsoft Security Advisor web site at http://www.microsoft.com/security.
Current thread:
- Microsoft Security Bulletin (MS00-063) Microsoft Product Security (Sep 05)
- Re: Microsoft Security Bulletin (MS00-063) Dan Harkless (Sep 06)
- Re: Microsoft Security Bulletin (MS00-063) Dan Harkless (Sep 07)
- Re: Microsoft Security Bulletin (MS00-063) Massimo Ferrario (Sep 08)
- Re: Microsoft Security Bulletin (MS00-063) James D. Fowlie (Sep 08)
- Re: Microsoft Security Bulletin (MS00-063) Daniel Harrison (Sep 08)
- Re: Microsoft Security Bulletin (MS00-063) Justin Lintz (Sep 12)
- Re: Microsoft Security Bulletin (MS00-063) Adam J. Baldwin (Sep 12)
- Re: Microsoft Security Bulletin (MS00-063) Dan Harkless (Sep 12)
- Re: Microsoft Security Bulletin (MS00-063) Dan Harkless (Sep 06)
- <Possible follow-ups>
- Re: Microsoft Security Bulletin (MS00-063) Boyce, Nick (Sep 12)
- Re: Microsoft Security Bulletin (MS00-063) Alexander Ivantchev (Sep 12)