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Microsoft Security Bulletin MS08-067 - Critical

Vulnerability in Server Service Could Allow Remote Code Execution (958644)

Published: October 23, 2008

Version: 1.0

General Information

Executive Summary

This security update resolves a privately reported vulnerability in the Server service. The vulnerability could allow remote code execution if an affected system received a specially crafted RPC request. On Microsoft Windows 2000, Windows XP, and Windows Server 2003 systems, an attacker could exploit this vulnerability without authentication to run arbitrary code. It is possible that this vulnerability could be used in the crafting of a wormable exploit. Firewall best practices and standard default firewall configurations can help protect network resources from attacks that originate outside the enterprise perimeter.

This security update is rated Critical for all supported editions of Microsoft Windows 2000, Windows XP, Windows Server 2003, and rated Important for all supported editions of Windows Vista and Windows Server 2008. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerability by correcting the way that the Server service handles RPC requests. For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.

Recommendation. Microsoft recommends that customers apply the update immediately.

Known Issues. None

Affected and Non-Affected Software

The following software have been tested to determine which versions or editions are affected. Other versions or editions are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, visit Microsoft Support Lifecycle.

Affected Software

Operating SystemMaximum Security ImpactAggregate Severity RatingBulletins Replaced by this Update
Microsoft Windows 2000 Service Pack 4 Remote Code ExecutionCritical MS06-040
Windows XP Service Pack 2 Remote Code ExecutionCritical MS06-040
Windows XP Service Pack 3 Remote Code ExecutionCriticalNone
Windows XP Professional x64 Edition Remote Code ExecutionCritical MS06-040
Windows XP Professional x64 Edition Service Pack 2 Remote Code ExecutionCriticalNone
Windows Server 2003 Service Pack 1 Remote Code ExecutionCritical MS06-040
Windows Server 2003 Service Pack 2 Remote Code ExecutionCriticalNone
Windows Server 2003 x64 Edition Remote Code ExecutionCritical MS06-040
Windows Server 2003 x64 Edition Service Pack 2 Remote Code ExecutionCriticalNone
Windows Server 2003 with SP1 for Itanium-based Systems Remote Code ExecutionCritical MS06-040
Windows Server 2003 with SP2 for Itanium-based Systems Remote Code ExecutionCriticalNone
Windows Vista and Windows Vista Service Pack 1 Remote Code ExecutionImportantNone
Windows Vista x64 Edition and Windows Vista x64 Edition Service Pack 1 Remote Code ExecutionImportantNone
Windows Server 2008 for 32-bit Systems*Remote Code ExecutionImportantNone
Windows Server 2008 for x64-based Systems*Remote Code ExecutionImportantNone
Windows Server 2008 for Itanium-based Systems Remote Code ExecutionImportantNone

*Windows Server 2008 server core installation affected. For supported editions of Windows Server 2008, this update applies, with the same severity rating, whether or not Windows Server 2008 was installed using the Server Core installation option. For more information on this installation option, see Server Core. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008; see Compare Server Core Installation Options.

Where are the file information details? 
The file information details can be found in Microsoft Knowledge Base Article 958644.

Is the Windows 7 Pre-Beta release affected by this vulnerability?
Yes. This vulnerability was reported after the release of Windows 7 Pre-Beta. Customers running Windows 7 Pre-Beta are encouraged to download and apply the update to their systems. On Windows 7 Pre-Beta systems, the vulnerable code path is only accessible to authenticated users. This vulnerability is not liable to be triggered if the attacker is not authenticated, and therefore would be rated Important.

Security updates are available from Microsoft Update, Windows Update, and Office Update. Security updates are also available from the Microsoft Download Center. You can find them most easily by doing a keyword search for "security update."

I am using an older release of the software discussed in this security bulletin. What should I do? 
The affected software listed in this bulletin have been tested to determine which releases are affected. Other releases are past their support life cycle. To determine the support life cycle for your software release, visit Microsoft Support Lifecycle.

It should be a priority for customers who have older releases of the software to migrate to supported releases to prevent potential exposure to vulnerabilities. For more information about the Windows Product Lifecycle, visit Microsoft Support Lifecycle. For more information about the extended security update support period for these software versions or editions, visit Microsoft Product Support Services.

Customers who require custom support for older releases must contact their Microsoft account team representative, their Technical Account Manager, or the appropriate Microsoft partner representative for custom support options. Customers without an Alliance, Premier, or Authorized Contract can contact their local Microsoft sales office. For contact information, visit Microsoft Worldwide Information, select the country, and then click Go to see a list of telephone numbers. When you call, ask to speak with the local Premier Support sales manager. For more information, see the Windows Operating System Product Support Lifecycle FAQ.

Vulnerability Information

Vulnerability Severity Rating and Maximum Security Impact by Affected Software
Affected SoftwareServer Service Vulnerability - CVE-2008-4250Aggregate Severity Rating
Microsoft Windows 2000 Service Pack 4 Critical
Remote Code Execution
Critical
Windows XP Service Pack 2 and Windows XP Service Pack 3 Critical
Remote Code Execution
Critical
Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 Critical
Remote Code Execution
Critical
Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Critical
Remote Code Execution
Critical
Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 Critical
Remote Code Execution
Critical
Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems Critical
Remote Code Execution
Critical
Windows Vista and Windows Vista Service Pack 1 Important
Remote Code Execution
Important
Windows Vista x64 Edition and Windows Vista x64 Edition Service Pack 1 Important
Remote Code Execution
Important
Windows Server 2008 for 32-bit Systems* Important
Remote Code Execution
Important
Windows Server 2008 for x64-based Systems* Important
Remote Code Execution
Important
Windows Server 2008 for Itanium-based Systems Important
Remote Code Execution
Important

*Windows Server 2008 server core installation affected. For supported editions of Windows Server 2008, this update applies, with the same severity rating, whether or not Windows Server 2008 was installed using the Server Core installation option. For more information on this installation option, see Server Core. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008; see Compare Server Core Installation Options.

A remote code execution vulnerability exists in the Server service on Windows systems. The vulnerability is due to the service not properly handling specially crafted RPC requests. An attacker who successfully exploited this vulnerability could take complete control of an affected system.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2008-4250.

Mitigating Factors for Server Service Vulnerability - CVE-2008-4250

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:

  • Firewall best practices and standard default firewall configurations can help protect network resources from attacks that originate outside the enterprise perimeter. Best practices recommend that systems that are connected to the Internet have a minimal number of ports exposed.
  • On Windows Vista and Windows Server 2008, the vulnerable code path is only accessible to authenticated users. This vulnerability is not liable to be triggered if the attacker is not authenticated.

Workarounds for Server Service Vulnerability - CVE-2008-4250

Workaround refers to a setting or configuration change that does not correct the underlying vulnerability but would help block known attack vectors before you apply the update. Microsoft has tested the following workarounds and states in the discussion whether a workaround reduces functionality:

  • Disable the Server and Computer Browser services

    Disabling the Computer Browser and Server service on the affected systems will help protect systems from remote attempts to exploit this vulnerability.

    You can disable these services by using the following steps:

    1. Click Start, and then click Control Panel (or point to Settings and then click Control Panel).
    2. Double-click Administrative Tools.
    3. Double-click Services.
    4. Double-click Computer Browser Service.
    5. In the Startup type list, click Disabled.
    6. Click Stop, and then click OK.
    7. Repeat steps 4-6 for the Server service

    Impact of Workaround. If the Computer Browser service is disabled, any services that explicitly depend on the Computer Browser service may log an error message in the system event log. For more information about the Computer Browser service, see Microsoft Knowledge Base Article 188001. If the Server service is disabled, you will not be able to share files or printers from your computer. However, you will still be able to view and use file shares and printer resources on other systems.

    How to undo the workaround. You can enable these services by using the following steps:

    1. Click Start, and then click Control Panel (or point to Settings, and then click Control Panel).
    2. Double-click Administrative Tools.
    3. Double-click Services.
    4. Double-click Computer Browser Service.
    5. In the Startup type list, click Automatic.
    6. Click Start, and then click OK.
    7. Repeat steps 4-6 for the Server service
  • On Windows Vista and Windows Server 2008, filter the affected RPC identifier

    In addition to blocking ports with the Windows Firewall, the Windows Vista and Windows Server 2008 editions can selectively filter RPC Universally Unique Identifiers (UUID). To prevent this vulnerability, add a rule that blocks all RPC requests with the UUID equal to 4b324fc8-1670-01d3-1278-5a47bf6ee188. This is accomplished through the network shell. To access the network shell, run the following command from an elevated command prompt:

    netsh

    Once in the netsh environment, enter the following commands:

    netsh>rpc
    netsh rpc>filter
    netsh rpc filter>add rule layer=um actiontype=block
    netsh rpc filter>add condition field=if_uuid matchtype=equal data=4b324fc8-1670-01d3-1278-5a47bf6ee188
    netsh rpc filter>add filter
    netsh rpc filter>quit

    The Filter Key is a randomly generated UUID specific to each system. To confirm the filter is in place, run the following command from an elevated command prompt:

    netsh rpc filter show filter

    If the commands are successful, the system displays the following information:

    Listing all RPC Filters.
    ---------------------------------
    filterKey: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
    displayData.name: RPCFilter
    displayData.description: RPC Filter
    filterId: 0x12f79
    layerKey: um
    weight: Type: FWP_EMPTY Value: Empty
    action.type: block
    numFilterConditions: 1

    Where filterKey: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx equates to the randomly generated UUID relevant to your system.

    Impact of workaround. Certain applications that rely on the Microsoft Server Message Block (SMB) Protocol may not function as intended. However, you will still be able to view and use file shares and printer resources on other systems.

    How to undo the workaround. Run the following command from an elevated command prompt:

    netsh rpc filter delete filter xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

    Where filterKey: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx equates to the randomly generated UUID relevant to your system.

  • Block TCP ports 139 and 445 at the firewall

    These ports are used to initiate a connection with the affected component. Blocking TCP ports 139 and 445 at the firewall will help protect systems that are behind that firewall from attempts to exploit this vulnerability. Microsoft recommends that you block all unsolicited inbound communication from the Internet to help prevent attacks that may use other ports. For more information about ports, see TCP and UDP Port Assignments.

    Impact of workaround. Several Windows services use the affected ports. Blocking connectivity to the ports may cause various applications or services to not function. Some of the applications or services that could be impacted are listed below:

    • Applications that use SMB (CIFS)
    • Applications that use mailslots or named pipes (RPC over SMB)
    • Server (File and Print Sharing)
    • Group Policy
    • Net Logon
    • Distributed File System (DFS)
    • Terminal Server Licensing
    • Print Spooler
    • Computer Browser
    • Remote Procedure Call Locator
    • Fax Service
    • Indexing Service
    • Performance Logs and Alerts
    • Systems Management Server
    • License Logging Service
  • To help protect from network-based attempts to exploit this vulnerability, use a personal firewall, such as the Internet Connection Firewall

    All supported editions of Windows Vista come with Windows Firewall, a two-way firewall that is automatically enabled.

    For all supported editions of Windows XP and Windows Server 2003, use the Internet Connection Firewall feature to help protect your Internet connection by blocking unsolicited incoming traffic. Microsoft recommends that you block all unsolicited incoming communication from the Internet. In Windows XP Service Pack 2 and Windows XP Service Pack 3, this feature is called the Windows Firewall.

    By default, the Windows Firewall feature in Windows XP helps protect your Internet connection by blocking unsolicited incoming traffic. We recommend that you block all unsolicited incoming communication from the Internet.

    To enable the Windows Firewall feature by using the Network Setup Wizard, follow these steps:

    1. Click Start, and then click Control Panel.
    2. Double-click Network Connections and then click Change Windows Firewall Settings.
    3. On the General tab, ensure that the On (recommended) value is selected. This will enable the Windows Firewall.
    4. Once the Windows Firewall is enabled, select Don’t allow exceptions to prohibit all incoming traffic.

    For Windows Server 2003 systems, configure Internet Connection Firewall manually for a connection using the following steps:

    1. Click Start, and then click Control Panel.
    2. In the default Category View, click Networking and Internet Connections, and then click Network Connections.
    3. Right-click the connection on which you want to enable Internet Connection Firewall, and then click Properties.
    4. Click the Advanced tab.
    5. Click to select the Protect my computer or network by limiting or preventing access to this computer from the Internet check box, and then click OK.

    Note If you want to enable certain programs and services to communicate through the firewall, click Settings on the Advanced tab, and then select the programs, the protocols, and the services that are required.

FAQ for Server Service Vulnerability - CVE-2008-4250

What is the scope of the vulnerability? 
This is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could take complete control of an affected system remotely. On Microsoft Windows 2000, Windows XP, and Windows Server 2003 systems, an attacker could exploit this vulnerability over RPC without authentication to run arbitrary code. It is possible that this vulnerability could be used in the crafting of a wormable exploit. If successfully exploited, an attacker could then install programs or view, change, or delete data; or create new accounts with full user rights.

What causes the vulnerability? 
The vulnerability is caused by the Windows Server service not properly handling specially crafted RPC requests.

What is the Server service? 
The Server service provides RPC support, file and print support, and named pipe sharing over the network. The Server service allows the sharing of your local resources (such as disks and printers) so that other users on the network can access them. It also allows named pipe communication between applications running on other computers and your computer, which is used for RPC.

What is RPC? 
Remote Procedure Call (RPC) is a protocol that a program can use to request a service from a program located on another computer in a network. RPC helps with interoperability because the program using RPC does not have to understand the network protocols that are supporting communication. In RPC, the requesting program is the client and the service-providing program is the server.

What might an attacker use the vulnerability to do? 
An attacker who successfully exploited this vulnerability could take complete control of the affected system.

How could an attacker exploit the vulnerability? 
An attacker could try to exploit the vulnerability by sending a specially crafted message to an affected system. On Microsoft Windows 2000, Windows XP, and Windows Server 2003 systems, any anonymous user with access to the target network could deliver a specially crafted network packet to the affected system in order to exploit this vulnerability. On Windows Vista and Windows Server 2008 systems, however, only an authenticated user with access to the target network could deliver a specially crafted network packet to the affected system in order to exploit this vulnerability.

What systems are primarily at risk from the vulnerability? 
While all workstations and servers are at risk regarding this issue, systems running Microsoft Windows 2000, Windows XP, or Windows Server 2003 are primarily at risk due to the unique characteristics of the vulnerability and affected code path.

What does the update do? 
The update addresses the vulnerability by correcting the manner in which the Server service handles RPC requests.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited? 
Yes. Microsoft is aware of limited, targeted attacks attempting to exploit the vulnerability. However, when the security bulletin was released, Microsoft had not seen any examples of proof of concept code published.

Does applying this security update help protect customers from the code that attempts to exploit this vulnerability? 
Yes. This security update addresses the vulnerability that is currently being exploited. The vulnerability that has been addressed has been assigned the Common Vulnerability and Exposure number CVE-2008-4250.

Update Information

Manage the software and security updates you need to deploy to the servers, desktop, and mobile systems in your organization. For more information see the TechNet Update Management Center. The Microsoft TechNet Security Web site provides additional information about security in Microsoft products.

Security updates are available from Microsoft Update, Windows Update, and Office Update. Security updates are also available from the Microsoft Download Center. You can find them most easily by doing a keyword search for "security update."

Finally, security updates can be downloaded from the Microsoft Update Catalog. The Microsoft Update Catalog provides a searchable catalog of content made available through Windows Update and Microsoft Update, including security updates, drivers and service packs. By searching using the security bulletin number (such as, “MS07-036”), you can add all of the applicable updates to your basket (including different languages for an update), and download to the folder of your choosing. For more information about the Microsoft Update Catalog, see the Microsoft Update Catalog FAQ.

Detection and Deployment Guidance

Microsoft has provided detection and deployment guidance for this month’s security updates. This guidance will also help IT professionals understand how they can use various tools to help deploy the security update, such as Windows Update, Microsoft Update, Office Update, the Microsoft Baseline Security Analyzer (MBSA), the Office Detection Tool, Microsoft Systems Management Server (SMS), and the Extended Security Update Inventory Tool. For more information, see Microsoft Knowledge Base Article 910723.

Microsoft Baseline Security Analyzer

Microsoft Baseline Security Analyzer (MBSA) allows administrators to scan local and remote systems for missing security updates as well as common security misconfigurations. For more information about MBSA, visit Microsoft Baseline Security Analyzer.

The following table provides the MBSA detection summary for this security update.

Software MBSA 2.1
Microsoft Windows 2000 Service Pack 4Yes
Windows XP Service Pack 2 and Windows XP Service Pack 3Yes
Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2Yes
Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2Yes
Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2Yes
Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based SystemsYes
Windows Vista and Windows Vista Service Pack 1Yes
Windows Vista x64 Edition and Windows Vista x64 Edition Service Pack 1Yes
Windows Server 2008 for 32-bit SystemsYes
Windows Server 2008 for x64-based SystemsYes
Windows Server 2008 for Itanium-based SystemsYes

For more information about MBSA 2.1, see MBSA 2.1 Frequently Asked Questions.

Windows Server Update Services

By using Windows Server Update Services (WSUS), administrators can deploy the latest critical updates and security updates for Microsoft Windows 2000 operating systems and later, Office XP and later, Exchange Server 2003, and SQL Server 2000. For more information about how to deploy this security update using Windows Server Update Services, visit the Windows Server Update Services Web site.

Systems Management Server

The following table provides the SMS detection and deployment summary for this security update.

SoftwareSMS 2.0SMS 2003 with SUSFPSMS 2003 with ITMUConfiguration Manager 2007
Microsoft Windows 2000 Service Pack 4YesYesYesYes
Windows XP Service Pack 2 and Windows XP Service Pack 3YesYesYesYes
Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2NoNoYesYes
Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2YesYesYesYes
Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2NoNoYesYes
Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based SystemsNoNoYesYes
Windows Vista and Windows Vista Service Pack 1NoNoSee Note for Windows Vista and Windows Server 2008 belowYes
Windows Vista x64 Edition and Windows Vista x64 Edition Service Pack 1NoNoSee Note for Windows Vista and Windows Server 2008 belowYes
Windows Server 2008 for 32-bit SystemsNoNoSee Note for Windows Vista and Windows Server 2008 belowYes
Windows Server 2008 for x64-based SystemsNoNoSee Note for Windows Vista and Windows Server 2008 belowYes
Windows Server 2008 for Itanium-based SystemsNoNoSee Note for Windows Vista and Windows Server 2008 belowYes

For SMS 2.0 and SMS 2003, the SMS SUS Feature Pack (SUSFP), which includes the Security Update Inventory Tool (SUIT), can be used by SMS to detect security updates. See also Downloads for Systems Management Server 2.0.

For SMS 2003, the SMS 2003 Inventory Tool for Microsoft Updates (ITMU) can be used by SMS to detect security updates that are offered by Microsoft Update and that are supported by Windows Server Update Services. For more information about the SMS 2003 ITMU, see SMS 2003 Inventory Tool for Microsoft Updates. SMS 2003 can also use the Microsoft Office Inventory Tool to detect required updates for Microsoft Office applications. For more information about the Office Inventory Tool and other scanning tools, see SMS 2003 Software Update Scanning Tools. See also Downloads for Systems Management Server 2003.

System Center Configuration Manager 2007 uses WSUS 3.0 for detection of updates. For more information about Configuration Manager 2007 Software Update Management, visit System Center Configuration Manager 2007.

Note for Windows Vista and Windows Server 2008 Microsoft Systems Management Server 2003 with Service Pack 3 includes support for Windows Vista and Windows Server 2008 manageability.

For more information about SMS, visit the SMS Web site.

For more detailed information, see Microsoft Knowledge Base Article 910723: Summary list of monthly detection and deployment guidance articles.

Update Compatibility Evaluator and Application Compatibility Toolkit

Updates often write to the same files and registry settings required for your applications to run. This can trigger incompatibilities and increase the time it takes to deploy security updates. You can streamline testing and validating Windows updates against installed applications with the Update Compatibility Evaluator components included with Application Compatibility Toolkit 5.0.

The Application Compatibility Toolkit (ACT) contains the necessary tools and documentation to evaluate and mitigate application compatibility issues before deploying Microsoft Windows Vista, a Windows Update, a Microsoft Security Update, or a new version of Windows Internet Explorer in your environment.

Affected Software

For information about the specific security update for your affected software, click the appropriate link:

Windows 2000 (all editions)

Reference Table

The following table contains the security update information for this software. You can find additional information in the subsection, Deployment Information, in this section.

Inclusion in Future Service Packs The update for this issue may be included in a future update rollup
Deployment
Installing without user interventionMicrosoft Windows 2000 Service Pack 4:
Windows2000-kb958644-x86-enu /quiet
Installing without restartingMicrosoft Windows 2000 Service Pack 4:
Windows2000-kb958644-x86-enu /norestart
Update log fileMicrosoft Windows 2000 Service Pack 4:
kb958644.log
Further informationSee the subsection, Detection and Deployment Tools and Guidance
Restart Requirement
Restart required?Yes, you must restart your system after you apply this security update
HotPatchingNot applicable
Removal Information Microsoft Windows 2000 Service Pack 4:
Use Add or Remove Programs tool in Control Panel or the Spuninst.exe utility located in the %Windir%\$NTUninstallKB958644$\Spuninst folder
File Information See Microsoft Knowledge Base Article 958644
Registry Key Verification Microsoft Windows 2000 Service Pack 4: 

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows 2000\SP5\KB958644\Filelist


Deployment Information

Installing the Update

When you install this security update, the installer checks whether one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix.

If you have previously installed a hotfix to update one of these files, the installer copies the RTMQFE, SP1QFE, or SP2QFE files to your system. Otherwise, the installer copies the RTMGDR, SP1GDR, or SP2GDR files to your system. Security updates may not contain all variations of these files. For more information about this behavior, see Microsoft Knowledge Base Article 824994.

For more information about the installer, visit the Microsoft TechNet Web site.

For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

This security update supports the following setup switches.

Supported Security Update Installation Switches
SwitchDescription
/help Displays the command-line options.
Setup Modes
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed.
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Displays a dialog box prompting the local user to allow a restart.
Special Options
/overwriteoem Overwrites OEM files without prompting.
/nobackup Does not back up files needed for uninstall.
/forceappsclose Forces other programs to close when the computer shuts down.
/log:path Allows the redirection of installation log files.
/extract[:path] Extracts files without starting the Setup program.
/ER Enables extended error reporting.
/verbose Enables verbose logging. During installation, creates %Windir%\CabBuild.log. This log details the files that are copied. Using this switch may cause the installation to proceed more slowly.

Note You can combine these switches into one command. For backward compatibility, the security update also supports the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841.

Removing the Update

This security update supports the following setup switches.

Supported Spuninst.exe Switches
SwitchDescription
/help Displays the command-line options.
Setup Modes
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed.
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Displays a dialog box prompting the local user to allow a restart.
Special Options
/forceappsclose Forces other programs to close when the computer shuts down.
/log:path Allows the redirection of installation log files.

Verifying That the Update Has Been Applied

  • Microsoft Baseline Security Analyzer

    To verify that a security update has been applied to an affected system, you may be able to use the Microsoft Baseline Security Analyzer (MBSA) tool. See the section, Detection and Deployment Tools and Guidance, earlier in this bulletin for more information.

  • File Version Verification

    Because there are several editions of Microsoft Windows, the following steps may be different on your system. If they are, see your product documentation to complete these steps.

    1. Click Start, and then click Search.
    2. In the Search Results pane, click All files and folders under Search Companion.
    3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
    4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

      Note Depending on the edition of the operating system, or the programs that are installed on your system, some of the files that are listed in the file information table may not be installed.
    5. On the Version tab, determine the version of the file that is installed on your system by comparing it to the version that is documented in the appropriate file information table.

      Note Attributes other than the file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying that the update has been applied. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.
  • Registry Key Verification

    You may also be able to verify the files that this security update has installed by reviewing the registry keys listed in the Reference Table in this section.

    These registry keys may not contain a complete list of installed files. Also, these registry keys may not be created correctly when an administrator or an OEM integrates or slipstreams this security update into the Windows installation source files.

Windows XP (all editions)

Reference Table

The following table contains the security update information for this software. You can find additional information in the subsection, Deployment Information, in this section.

Inclusion in Future Service Packs The update for this issue will be included in a future service pack or update rollup
Deployment
Installing without user interventionWindows XP Service Pack 2 and Windows XP Service Pack 3:
Windowsxp-kb958644-x86-enu /quiet
Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2:
WindowsServer2003.WindowsXP-kb958644-x64-enu /quiet
Installing without restartingWindows XP Service Pack 2 and Windows XP Service Pack 3:
Windowsxp-kb958644-x86-enu /norestart
Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2:
WindowsServer2003.WindowsXP-kb958644-x64-enu /norestart
Update log fileKB958644.log
Further informationSee the subsection, Detection and Deployment Tools and Guidance
Restart Requirement
Restart required?Yes, you must restart your system after you apply this security update
HotPatchingNot applicable
Removal Information Use Add or Remove Programs tool in Control Panel or the Spuninst.exe utility located in the %Windir%\$NTUninstallKB958644$\Spuninst folder
File Information See Microsoft Knowledge Base Article 958644
Registry Key Verification Windows XP Service Pack 2 and Windows XP Service Pack 3:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows XP\SP4\KB958644\Filelist
Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows XP Version 2003\SP3\KB958644\Filelist

Note For supported versions of Windows XP Professional x64 Edition, this security update is the same as supported versions of the Windows Server 2003 x64 Edition security update.

Deployment Information

Installing the Update

When you install this security update, the installer checks whether one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix.

If you have previously installed a hotfix to update one of these files, the installer copies the RTMQFE, SP1QFE, or SP2QFE files to your system. Otherwise, the installer copies the RTMGDR, SP1GDR, or SP2GDR files to your system. Security updates may not contain all variations of these files. For more information about this behavior, see Microsoft Knowledge Base Article 824994.

For more information about the installer, visit the Microsoft TechNet Web site.

For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

This security update supports the following setup switches.

Supported Security Update Installation Switches
SwitchDescription
/help Displays the command-line options.
Setup Modes
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed.
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Displays a dialog box prompting the local user to allow a restart.
Special Options
/overwriteoem Overwrites OEM files without prompting.
/nobackup Does not back up files needed for uninstall.
/forceappsclose Forces other programs to close when the computer shuts down.
/log:path Allows the redirection of installation log files.
/integrate:path Integrates the update into the Windows source files. These files are located at the path that is specified in the switch.
/extract[:path] Extracts files without starting the Setup program.
/ER Enables extended error reporting.
/verbose Enables verbose logging. During installation, creates %Windir%\CabBuild.log. This log details the files that are copied. Using this switch may cause the installation to proceed more slowly.

Note You can combine these switches into one command. For backward compatibility, the security update also supports the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841.

Removing the Update

This security update supports the following setup switches.

Supported Spuninst.exe Switches
SwitchDescription
/help Displays the command-line options.
Setup Modes
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Displays a dialog box prompting the local user to allow a restart.
Special Options
/forceappsclose Forces other programs to close when the computer shuts down.
/log:path Allows the redirection of installation log files.

Verifying That the Update Has Been Applied

  • Microsoft Baseline Security Analyzer

    To verify that a security update has been applied to an affected system, you may be able to use the Microsoft Baseline Security Analyzer (MBSA) tool. See the section, Detection and Deployment Tools and Guidance, earlier in this bulletin for more information.

  • File Version Verification

    Because there are several editions of Microsoft Windows, the following steps may be different on your system. If they are, see your product documentation to complete these steps.

    1. Click Start, and then click Search.
    2. In the Search Results pane, click All files and folders under Search Companion.
    3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
    4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

      Note Depending on the edition of the operating system, or the programs that are installed on your system, some of the files that are listed in the file information table may not be installed.
    5. On the Version tab, determine the version of the file that is installed on your system by comparing it to the version that is documented in the appropriate file information table.

      Note Attributes other than the file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying that the update has been applied. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.
  • Registry Key Verification

    You may also be able to verify the files that this security update has installed by reviewing the registry keys listed in the Reference Table in this section.

    These registry keys may not contain a complete list of installed files. Also, these registry keys may not be created correctly when an administrator or an OEM integrates or slipstreams this security update into the Windows installation source files.

Windows Server 2003 (all editions)

Reference Table

The following table contains the security update information for this software. You can find additional information in the subsection, Deployment Information, in this section.

Inclusion in Future Service Packs The update for this issue will be included in a future service pack or update rollup
Deployment
Installing without user interventionFor all supported 32-bit editions of Windows Server 2003:
Windowsserver2003-kb958644-x86-enu /quiet
For all supported x64-based editions of Windows Server 2003:
Windowsserver2003.WindowsXP-KB958644-x64-enu /quiet
For all supported Itanium-based editions of Windows Server 2003:
Windowsserver2003-KB958644-ia64-enu /quiet
Installing without restartingFor all supported 32-bit editions of Windows Server 2003:
Windowsserver2003-kb958644-x86-enu /norestart
For all supported x64-based editions of Windows Server 2003:
Windowsserver2003.WindowsXP-KB958644-x64-enu /norestart
For all supported Itanium-based editions of Windows Server 2003:
Windowsserver2003-KB958644-ia64-enu /norestart
Update log fileKB958644.log
Further informationSee the subsection, Detection and Deployment Tools and Guidance
Restart Requirement
Restart required?Yes, you must restart your system after you apply this security update.
HotPatchingThis security update does not support HotPatching. For more information about HotPatching, see Microsoft Knowledge Base Article 897341.
Removal Information Use Add or Remove Programs tool in Control Panel or the Spuninst.exe utility located in the %Windir%\$NTUninstallKB958644$\Spuninst folder
File Information See Microsoft Knowledge Base Article 958644
Registry Key Verification HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows Server 2003\SP3\KB958644\Filelist

Deployment Information

Installing the Update

When you install this security update, the installer checks to see if one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix.

If you have previously installed a hotfix to update one of these files, the installer copies the RTMQFE, SP1QFE, or SP2QFE files to your system. Otherwise, the installer copies the RTMGDR, SP1GDR, or SP2GDR files to your system. Security updates may not contain all variations of these files. For more information about this behavior, see Microsoft Knowledge Base Article 824994.

For more information about the installer, visit the Microsoft TechNet Web site.

For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

This security update supports the following setup switches.

Supported Security Update Installation Switches
SwitchDescription
/help Displays the command-line options.
Setup Modes
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed.
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Displays a dialog box prompting the local user to allow a restart.
Special Options
/overwriteoem Overwrites OEM files without prompting.
/nobackup Does not back up files needed for uninstall.
/forceappsclose Forces other programs to close when the computer shuts down.
/log:path Allows the redirection of installation log files.
/integrate:path Integrates the update into the Windows source files. These files are located at the path that is specified in the switch.
/extract[:path] Extracts files without starting the Setup program.
/ER Enables extended error reporting.
/verbose Enables verbose logging. During installation, creates %Windir%\CabBuild.log. This log details the files that are copied. Using this switch may cause the installation to proceed more slowly.

Note You can combine these switches into one command. For backward compatibility, the security update also supports many of the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841.

Removing the Update

This security update supports the following setup switches.

Supported Spuninst.exe Switches
SwitchDescription
/help Displays the command-line options.
Setup Modes
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed.
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Displays a dialog box prompting the local user to allow a restart.
Special Options
/forceappsclose Forces other programs to close when the computer shuts down.
/log:path Allows the redirection of installation log files.

Verifying that the Update Has Been Applied

  • Microsoft Baseline Security Analyzer

    To verify that a security update has been applied to an affected system, you may be able to use the Microsoft Baseline Security Analyzer (MBSA) tool. See the section, Detection and Deployment Tools and Guidance, earlier in this bulletin for more information.

  • File Version Verification

    Because there are several editions of Microsoft Windows, the following steps may be different on your system. If they are, see your product documentation to complete these steps.

    1. Click Start, and then click Search.
    2. In the Search Results pane, click All files and folders under Search Companion.
    3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
    4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

      Note Depending on the edition of the operating system, or the programs that are installed on your system, some of the files that are listed in the file information table may not be installed.
    5. On the Version tab, determine the version of the file that is installed on your system by comparing it to the version that is documented in the appropriate file information table.

      Note Attributes other than the file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying that the update has been applied. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.
  • Registry Key Verification

    You may also be able to verify the files that this security update has installed by reviewing the registry keys listed in the Reference Table in this section.

    These registry keys may not contain a complete list of installed files. Also, these registry keys may not be created correctly when an administrator or an OEM integrates or slipstreams this security update into the Windows installation source files.

Windows Vista (all editions)

Reference Table

The following table contains the security update information for this software. You can find additional information in the subsection, Deployment Information, in this section.

Inclusion in Future Service Packs The update for this issue will be included in a future service pack or update rollup
Deployment
Installing without user interventionFor all supported 32-bit editions of Windows Vista:
Windows6.0-KB958644-x86 /quiet

For all supported x64-based editions of Windows Vista:
Windows6.0-KB958644-x64 /quiet
Installing without restartingFor all supported 32-bit editions of Windows Vista:
Windows6.0-KB958644-x86 /quiet /norestart

For all supported x64-based editions of Windows Vista:
Windows6.0-KB958644-x64 /quiet /norestart
Further informationSee the subsection, Detection and Deployment Tools and Guidance
Restart Requirement
Restart required?Yes, you must restart your system after you apply this security update
HotPatchingNot applicable
Removal Information WUSA.exe does not support uninstall of updates. To uninstall an update installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates and select from the list of updates.
File Information See Microsoft Knowledge Base Article 958644
Registry Key Verification Note A registry key does not exist to validate the presence of this update.

Deployment Information

Installing the Update

When you install this security update, the installer checks whether one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix.

For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

This security update supports the following setup switches.

Supported Security Update Installation Switches
SwitchDescription
/?, /h, /help Displays help on supported switches.
/quiet Suppresses the display of status or error messages.
/norestart When combined with /quiet, the system will not be restarted after installation even if a restart is required to complete installation.

Note For more information about the wusa.exe installer, see Microsoft Knowledge Base Article 934307.

Verifying That the Update Has Been Applied

  • Microsoft Baseline Security Analyzer

    To verify that a security update has been applied to an affected system, you may be able to use the Microsoft Baseline Security Analyzer (MBSA) tool. See the section, Detection and Deployment Tools and Guidance, earlier in this bulletin for more information.

  • File Version Verification

    Because there are several editions of Microsoft Windows, the following steps may be different on your system. If they are, see your product documentation to complete these steps.

    1. Click Start and then enter an update file name in Start Search.
    2. When the file appears under Programs, right-click on the file name and click Properties.
    3. Under the General tab, compare the file size with the file information tables provided in the bulletin KB article.
    4. You may also click on the Details tab and compare information, such as file version and date modified, with the file information tables provided in the bulletin KB article.
    5. Finally, you may also click on the Previous Versions tab and compare file information for the previous version of the file with the file information for the new, or updated, version of the file.

Windows Server 2008 (all editions)

Reference Table

The following table contains the security update information for this software. You can find additional information in the subsection, Deployment Information, in this section.

Inclusion in Future Service Packs The update for this issue will be included in a future service pack or update rollup
Deployment
Installing without user interventionFor all supported 32-bit editions of Windows Server 2008:
Windows6.0-KB958644-x86 /quiet

For all supported x64-based editions of Windows Server 2008:
Windows6.0-KB958644-x64 /quiet

For all supported Itanium-based editions of Windows Server 2008:
Windows6.0-KB958644-ia64 /quiet
Installing without restartingFor all supported 32-bit editions of Windows Server 2008:
Windows6.0-KB958644-x86 /quiet /norestart

For all supported x64-based editions of Windows Server 2008:
Windows6.0-KB958644-x64 /quiet /norestart

For all supported Itanium-based editions of Windows Server 2008:
Windows6.0-KB958644-ia64 /quiet /norestart
Further informationSee the subsection, Detection and Deployment Tools and Guidance
Restart Requirement
Restart required?Yes, you must restart your system after you apply this security update
HotPatchingNot applicable
Removal Information WUSA.exe does not support uninstall of updates. To uninstall an update installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates and select from the list of updates.
File Information See Microsoft Knowledge Base Article 958644
Registry Key Verification Note A registry key does not exist to validate the presence of this update.

Deployment Information

Installing the Update

When you install this security update, the installer checks whether one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix.

For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

This security update supports the following setup switches.

Supported Security Update Installation Switches
SwitchDescription
/?, /h, /help Displays help on supported switches.
/quiet Suppresses the display of status or error messages.
/norestart When combined with /quiet, the system will not be restarted after installation even if a restart is required to complete installation.

Note For more information about the wusa.exe installer, see Microsoft Knowledge Base Article 934307.

Verifying That the Update Has Been Applied

  • Microsoft Baseline Security Analyzer

    To verify that a security update has been applied to an affected system, you may be able to use the Microsoft Baseline Security Analyzer (MBSA) tool. See the section, Detection and Deployment Tools and Guidance, earlier in this bulletin for more information.

  • File Version Verification

    Because there are several editions of Microsoft Windows, the following steps may be different on your system. If they are, see your product documentation to complete these steps.

    1. Click Start and then enter an update file name in Start Search.
    2. When the file appears under Programs, right-click on the file name and click Properties.
    3. Under the General tab, compare the file size with the file information tables provided in the bulletin KB article.
    4. You may also click on the Details tab and compare information, such as file version and date modified, with the file information tables provided in the bulletin KB article.
    5. Finally, you may also click on the Previous Versions tab and compare file information for the previous version of the file with the file information for the new, or updated, version of the file.

Other Information

Support

  • Customers in the U.S. and Canada can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates.
  • International customers can receive support from their local Microsoft subsidiaries. There is no charge for support that is associated with security updates. For more information about how to contact Microsoft for support issues, visit the International Support Web site.

Disclaimer

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.

Revisions

  • V1.0 (October 23, 2008): Bulletin published.

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