MS00-095: Windows NT 4.0 SNMP registry entries are readable View products that this article applies to. Article ID : 265714 Last Review : June 15, 2004 Revision : 5.0 This article was previously published under Q265714 For additional information about how to resolve this problem in Microsoft Windows 2000, click the following article number to view the article in the Microsoft Knowledge Base: 266794 (http://support.microsoft.com/kb/266794/) Windows 2000 SNMP registry entries are saved in plain text format and are readable On This Page SYMPTOMS RESOLUTION Windows NT 4.0 Windows NT Server 4.0, Terminal Server Edition STATUS Windows NT 4.0 Windows NT Server 4.0, Terminal Server Edition MORE INFORMATION APPLIES TO SYMPTOMS Microsoft has released a tool that corrects the permissions on several registry values in Microsoft Windows NT 4.0. The default permissions could allow a malicious user to gain additional privileges on an affected machine. After you create the PermittedManagers and ValidCommunities registry keys for the Simple Network Management Protocol (SNMP) service, any user has permission to read the contents of the keys. The keys should only be accessible to administrators. SNMP is not installed on Windows NT 4.0 computers by default. For additional information about other registry keys affected by this tool, click the following article numbers to view the articles in the Microsoft Knowledge Base: 267861 (http://support.microsoft.com/kb/267861/) MS00-095: RAS registry modification allowed without administrative rights 267864 (http://support.microsoft.com/kb/267864/) MS00-095: MTS package administration key includes information about users Back to the top RESOLUTION Windows NT 4.0 To 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: 299444 (http://support.microsoft.com/kb/299444/EN-US/) Post-Windows NT 4.0 Service Pack 6a Security Rollup Package (SRP) The following file is available for download from the Microsoft Download Center: Download Q265714i.exe now (http://www.microsoft.com/ntserver/nts/downloads/critical/q265714/default.asp) For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base: 119591 (http://support.microsoft.com/kb/119591/EN-US/) How to Obtain Microsoft Support Files from Online Services Microsoft 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. Note Because of file dependencies, this patch requires Windows NT 4.0 Service Pack 5 or later. The English version of this fix should have the following file attributes or later: Date Time Size File name Platform --------------------------------------------------- 06/23/2000 08:28p 42,256 Regacl40.exe Intel 06/23/2000 08:28p 161,040 Tcpcfg.dll Intel 06/23/2000 08:27p 96,016 Regacl40.exe Alpha 06/23/2000 08:26p 242,960 Tcpcfg.dll Alpha Back to the top Windows NT Server 4.0, Terminal Server Edition A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that you determine are at risk of attack. Evaluate your computer's physical accessibility, network and Internet connectivity, and other factors to determine the degree of risk to your computer. See the associated Microsoft Security Bulletin () to help determine the degree of risk. This fix may receive additional testing. If your computer is sufficiently at risk, Microsoft recommends that you apply this fix now. To resolve this problem immediately, download the fix by clicking the download link later in this article or contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, please visit the following Microsoft Web site: http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS (http://support.microsoft.com/default.aspx?scid=fh;en-us;cntactms) NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled, if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question. The following file is available for download from the Microsoft Download Center: Download Q265714i.exe now (http://www.microsoft.com/ntserver/terminalserver/downloads/critical/q265714/default.asp) For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base: 119591 (http://support.microsoft.com/kb/119591/EN-US/) How to Obtain Microsoft Support Files from Online Services Microsoft 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 secure servers that prevent any unauthorized changes to the file. The English version of this fix should have the following file attributes or later: Date Time Size File name Platform --------------------------------------------------- 07/26/2000 04:46p 42,256 regacl40.exe Intel 02/19/2001 03:39p 161,040 tcpcfg.dll Intel Back to the top STATUS Windows NT 4.0 Microsoft has confirmed that this problem may cause a degree of security vulnerability in Windows NT 4.0. Back to the top Windows NT Server 4.0, Terminal Server Edition Microsoft has confirmed that this problem may cause a degree of security vulnerability in Windows NT Server 4.0, Terminal Server Edition. Back to the top MORE INFORMATION For additional information about this vulnerability, see the following Microsoft Web site: http://www.microsoft.com/technet/security/bulletin/MS00-095.mspx (http://www.microsoft.com/technet/security/bulletin/ms00-095.mspx) Back to the top -------------------------------------------------------------------------------- APPLIES TO • Microsoft Windows NT 4.0 Service Pack 4 • Microsoft Windows NT Server 4.0 Terminal Server Service Pack 5 • Microsoft Windows NT Server 4.0 Terminal Server Service Pack 6 • Microsoft Windows NT Server 4.0 Standard Edition • Microsoft Windows NT 4.0 Service Pack 1 • Microsoft Windows NT 4.0 Service Pack 2 • Microsoft Windows NT 4.0 Service Pack 3 • Microsoft Windows NT 4.0 Service Pack 4 • Microsoft Windows NT 4.0 Service Pack 5 • Microsoft Windows NT 4.0 Service Pack 6a • Microsoft Windows NT Server 4.0 Enterprise Edition • Microsoft Windows NT 4.0 Service Pack 4 • Microsoft Windows NT 4.0 Service Pack 5 • Microsoft Windows NT 4.0 Service Pack 6a • Microsoft Windows NT Workstation 4.0 Developer Edition • Microsoft Windows NT Workstation 4.0 Developer Edition • Microsoft Windows NT Workstation 4.0 Developer Edition • Microsoft Windows NT Workstation 4.0 Developer Edition • Microsoft Windows NT Workstation 4.0 Developer Edition • Microsoft Windows NT 4.0 Service Pack 5 • Microsoft Windows NT Workstation 4.0 Developer Edition