Article ID: 264684 - View products that this article applies to.
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Microsoft has released a patch that eliminates a security vulnerability in Microsoft Windows NT 4.0. This vulnerability can allow access to the registry from a remote computer.
The remote computer must be authenticated by a remote registry server before it can be processed. If a request is malformed in a specific fashion, the request is misinterpreted by the remote registry server, causing it not to work. Because the remote registry server runs within the Winlogon.exe system process in Windows NT 4.0, a problem in that process causes problems with the entire system.
Only an authenticated user can run such a request. An anonymous (or null-session) connection cannot cause this problem. You can place an affected computer back in service by rebooting the computer.
Windows NT 4.0To resolve this problem, obtain the individual package referenced below or obtain the Windows NT 4.0 Security Rollup Package. For additional information on the SRP, click the article number below to view the article in the Microsoft Knowledge Base:
299444The following file is available for download from the Microsoft Download Center:
(http://support.microsoft.com/kb/299444/EN-US/ )Post-Windows NT 4.0 Service Pack 6a Security Rollup Package (SRP)
x86:For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:
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119591Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file. The English version of this fix should have the following file attributes or later:
(http://support.microsoft.com/kb/119591/EN-US/ )How to Obtain Microsoft Support Files from Online Services
Date Time Size File name Platform --------------------------------------------------- 06/07/2000 09:20p 343,312 Rpcrt4.dll x86 06/07/2000 09:20p 192,784 Winlogon.exe x86 06/07/2000 09:19p 602,384 Rpcrt4.dll Alpha 06/07/2000 09:19p 275,216 Winlogon.exe Alpha
Microsoft Windows NT Server version 4.0, Terminal Server EditionTo resolve this problem, obtain the Windows NT Server 4.0, Terminal Server Edition, Security Rollup Package (SRP). For additional information about the SRP, click the article number below to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/317636/EN-US/ )Windows NT Server 4.0, TerminalServer Edition, Security Rollup Package
Microsoft has confirmed that this problem may cause a degree of security vulnerability in Windows NT 4.0 and Windows NT Server version 4.0, Terminal Server Edition.
For additional information about this issue, visit the following Microsoft Web site:
Article ID: 264684 - Last Review: October 26, 2013 - Revision: 4.0