Article ID: 314147 - Last Review: March 29, 2007 - Revision: 7.4 MS02-006: An Unchecked Buffer in the SNMP Service May Allow Code to RunThis article was previously published under Q314147 On This PageSYMPTOMS
If you install the Simple Network Management Protocol (SNMP) service and the service is running on your computer, a malicious user may be able to cause a denial-of-service attack on your computer and the malicious user may be able to run code on your computer. NOTES:
CAUSE
This vulnerability occurs because the component of the SNMP agent service that parses incoming commands contains an unchecked buffer. If a malicious user sends a specific request, the malicious user could cause a buffer overrun attack on the type of computer that is described in the "Symptoms" section in this article.
RESOLUTIONNOTE: If you install or reinstall the SNMP service, you must reapply this update. To resolve this vulnerability, view one of the following sections, depending on your operating system. Windows XP Professional and Windows XP Home EditionTo resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:322389
(http://support.microsoft.com/kb/322389/EN-US/
)
How to Obtain the Latest Windows XP Service Pack
The following file is available for download from the Microsoft Download Center:Collapse this image  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.
The English-language version of this fix should have the following file attributes or later: Date Time Version Size File name ---------------------------------------------------- 12-Feb-2002 22:02 5.1.2600.28 29,696 Snmp.exe 12-Feb-2002 22:03 5.1.2600.28 16,896 Snmpapi.dll 02-Nov-2001 16:50 5.1.2600.17 3,584 Spmsg.dll 12-Feb-2002 22:02 5.1.2600.28 39,424 Wsnmp32.dll Windows 2000 Professional, Windows 2000 Server, and Windows 2000 Advanced ServerTo resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:260910
(http://support.microsoft.com/kb/260910/EN-US/
)
How to Obtain the Latest Windows 2000 Service Pack
The following files are available for download from the Microsoft
Download Center:Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image 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-language version of this fix should have the following file attributes or later: Date Time Version Size File name ------------------------------------------------------ 25-Jan-2002 13:02 5.0.2195.4874 90,384 Evntwin.exe 09-Feb-2002 11:56 5.0.2195.4919 30,480 Snmp.exe Windows NT 4.0A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that you determine are at risk of attack. Evaluate the computer's physical accessibility, network and Internet connectivity, and other factors to determine the degree of risk to the computer. See the associated Microsoft Security Bulletin (http://www.microsoft.com/technet/security/bulletin/MS02-006.mspx) to help determine the degree of risk. This hotfix may receive additional testing. If the computer is sufficiently at risk, we recommend that you apply this hotfix now.To resolve this problem immediately, download the hotfix by following the instructions later in this article or contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site: http://support.microsoft.com/contactus/?ws=support
(http://support.microsoft.com/contactus/?ws=support)
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:Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image Collapse this image 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-language version of this fix should have the following file attributes or later: GMT-UTC Date Time Version Size File name ------------------------------------------------------- 25-Feb-2002 20:08 4.0.1381.7136 50,960 Inetmib1.dll 20-Feb-2002 16:18 4.0.1381.7134 17,680 Mgmtapi.dll 20-Feb-2002 16:19 4.0.1381.7134 18,192 Snmp.exe 20-Feb-2002 16:19 4.0.1381.7134 24,848 Snmpapi.dll 13-Feb-1999 00:02 4.0.1381.164 14,608 Snmpsfx.dll Windows NT Server 4.0, Terminal Server EditionA 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 (http://www.microsoft.com/technet/security/bulletin/MS02-006.mspx) 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: Collapse this image 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.On March 14, 2002, Microsoft discovered that the March 11, 2002, versions of the English and German patches for Windows NT Server 4.0, Terminal Server Edition, contained incorrect files. Microsoft has corrected this error and has posted updated versions of this patch for the English and German languages. Microsoft recommends that customers who downloaded the Windows NT Server 4.0, Terminal Server Edition, patch in English or German before March 14, 2002, install the updated version of the patch. Customers who installed the Windows NT Server 4.0, Terminal Server Edition, patches in any language other than English or German do not have to take any action; these patches do not contain the error. The English-language version of this fix should have the following file attributes or later: GMT-UTC Date Time Version Size File name -------------------------------------------------------- 07-Mar-2002 14:59 4.0.1381.33533 50,960 Inetmib1.dll 22-Feb-2002 22:19 4.0.1381.33531 17,680 Mgmtapi.dll 22-Feb-2002 22:19 4.0.1381.33531 18,192 Snmp.exe 22-Feb-2002 22:19 4.0.1381.33531 24,848 Snmpapi.dll Windows 98 Second Edition; Windows 98http://download.microsoft.com/download/WIN98/UPDATE/23433/W98/EN-US/314147USA8.EXE
(http://download.microsoft.com/download/win98/update/23433/w98/en-us/314147usa8.exe)
WORKAROUNDThe following file is available for download from the Microsoft Download Center: Collapse this image 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.NOTE: The Windows 2000 and Windows XP Group Policy Object tool is automatically installed in the location of the default domain Group Policy object (GPO), \\Volume\Domain\Policies\GPO_GUID\Machines\Scripts\Startup. For the installation to work correctly, you must install this tool on the domain controller. This tool applies a policy so that individual computers in the domain do not automatically start the SNMP service. STATUSWindows XP Professional and Windows XP Home EditionMicrosoft has confirmed that this problem may cause a degree of security vulnerability in Windows XP Professional and Windows XP Home Edition. This problem was first corrected in Windows XP Service Pack 1.Windows 2000 Professional, Windows 2000 Server, and Windows 2000 Advanced ServerMicrosoft has confirmed that this problem may cause a degree of security vulnerability in Windows 2000 Professional, Windows 2000 Server, and Windows 2000 Advanced Server. This problem was first corrected in Windows 2000 Service Pack 3.Windows NT 4.0Microsoft has confirmed that this problem may cause a degree of security vulnerability in Microsoft Windows NT 4.0.Windows NT Server 4.0, Terminal Server EditionMicrosoft has confirmed that this problem may cause a degree of security vulnerability in Microsoft Windows NT Server 4.0, Terminal Server Edition.Windows 98 Second EditionMicrosoft has confirmed that this problem may cause a degree of security vulnerability in Microsoft Windows 98 Second Edition.Windows 98Microsoft has confirmed that this problem may cause a degree of security vulnerability in Microsoft Windows 98.MORE INFORMATION
For more information about this vulnerability, visit the following Microsoft Web site:
http://www.microsoft.com/technet/security/bulletin/MS02-006.mspx
(http://www.microsoft.com/technet/security/bulletin/MS02-006.mspx)
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