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EmailArticle ID: 320206 - Last Review: November 6, 2007 - Revision: 6.2 MS02-024: Authentication flaw in Windows Debugger can cause elevated privileges
This article was previously published under Q320206 On This PageSYMPTOMS
A http://www.microsoft.com/technet/treeview/default.mspx?url=/technet/security/bulletin/glossary.asp vulnerability exists that can allow a malicious user to pose as any user on the computer, including any administrator or the operating system itself. Because this vulnerability requires the ability to log on interactively and to run a program, the computers that are most likely to be affected by this vulnerability are client computers and Terminal Services servers, which regularly permit users to interactively log on. Internet servers, file and print servers, and program servers such as SQL servers typically restrict the ability to log on interactively, and are less likely to be affected by this vulnerability. CAUSE
This vulnerability occurs because of a flaw in how access to the debugging facility in Windows is validated. Because of a flaw in how requests to attach to the system debugger are authenticated, unauthorized programs may be able to gain access to the system debugger.
RESOLUTIONWindows 2000To 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
Download InformationNote that the Q320206 package is included in Windows 2000 Service Pack 4, to obtain Windows 2000 SP4, visit the following Microsoft Web site:http://www.microsoft.com/downloads/details.aspx?FamilyID=1001AAF1-749F-49F4-8010-297BD6CA33A0&displaylang=en
(http://www.microsoft.com/downloads/details.aspx?FamilyID=1001AAF1-749F-49F4-8010-297BD6CA33A0&displaylang=en)
Release Date: Jun 6, 2003Installation OptionsYou must restart your computer after you apply this update. For additional information about the switches that you can use to apply this update, click the article number below to view the article in the Microsoft Knowledge Base:262841
(http://support.microsoft.com/kb/262841/EN-US/
)
Windows 2000 Hotfix.exe Program Description and Command-Line Switches
For example, the following command line installs the update without any user intervention and then does not force the computer to restart:
q320206_w2k_sp4_x86_en /q /m /z WARNING: Your computer is vulnerable until you restart it.
File InformationThe English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.Date Time Version Size File name and path --------------------------------------------------------------------- 29-Apr-2002 15:02 5.0.2195.5695 45,840 %Windir%\System32\Smss.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/ms02-024.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. Download InformationThe following file, for each given language, 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 Release Date: May 22, 2002 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.Installation OptionsYou must restart your computer after you apply this update. For additional information about the switches that you can use to apply this update, click the article number below to view the article in the Microsoft Knowledge Base:184305
(http://support.microsoft.com/kb/184305/EN-US/
)
How to Install and Remove Hotfixes with Hotfix.exe
For example, the following command line installs the update without any user intervention and does not force the computer to restart:
q320206i /q /m /z WARNING: Your computer is vulnerable until you restart it.
File InformationThe English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.Date Time Version Size File name and path --------------------------------------------------------------------- 30-Apr-2002 14:46 4.0.1381.7152 40,720 %Windir%\System32\Smss.exe 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/ms02-024.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.Download InformationThe 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.Installation OptionsYou must restart your computer after you apply this update. For additional information about the switches that you can use to apply this update, click the article number below to view the article in the Microsoft Knowledge Base:184305
(http://support.microsoft.com/kb/184305/EN-US/
)
How to Install and Remove Hotfixes with HOTFIX.EXE
For example, the following command line installs the update without any user intervention and then does not force the computer to restart:
q320206i /q /m /z WARNING: Your computer is vulnerable until you restart it.
File InformationThe English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.Date Time Version Size File name and path ---------------------------------------------------------------------- 01-May-2002 15:32 4.0.1381.33537 46,352 %Windir%\System32\Smss.exe STATUSMicrosoft has confirmed that this problem may cause a degree of security vulnerability in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 3. MORE INFORMATION
For more information about this vulnerability, see the following Microsoft Web site:
http://www.microsoft.com/technet/security/bulletin/ms02-024.mspx
(http://www.microsoft.com/technet/security/bulletin/ms02-024.mspx)
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