Security Bulletin

Microsoft Security Bulletin MS10-061 - Critical

Vulnerability in Print Spooler Service Could Allow Remote Code Execution (2347290)

Published: September 14, 2010 | Updated: September 29, 2010

Version: 1.1

General Information

Executive Summary

This security update resolves a publicly disclosed vulnerability in the Print Spooler service. The vulnerability could allow remote code execution if an attacker sends a specially crafted print request to a vulnerable system that has a print spooler interface exposed over RPC. By default, printers are not shared on any currently supported Windows operating system.

This security update is rated Critical for all supported editions of Windows XP, and Important for all supported editions of Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerability by correcting the manner in which the Printer Spooler service validates user permissions. 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. The majority of customers have automatic updating enabled and will not need to take any action because this security update will be downloaded and installed automatically. Customers who have not enabled automatic updating need to check for updates and install this update manually. For information about specific configuration options in automatic updating, see Microsoft Knowledge Base Article 294871.

For administrators and enterprise installations, or end users who want to install this security update manually, Microsoft recommends that customers apply the update immediately using update management software, or by checking for updates using the Microsoft Update service.

See also the section, Detection and Deployment Tools and Guidance, later in this bulletin.

Known Issues. Microsoft Knowledge Base Article 2347290 documents the currently known issues that customers may experience when installing this security update. The article also documents recommended solutions for these issues.

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 System Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by this Update
Windows XP Service Pack 3 Remote Code Execution Critical None
Windows XP Professional x64 Edition Service Pack 2 Remote Code Execution Critical None
Windows Server 2003 Service Pack 2 Elevation of Privilege Important None
Windows Server 2003 x64 Edition Service Pack 2 Elevation of Privilege Important None
Windows Server 2003 with SP2 for Itanium-based Systems Elevation of Privilege Important None
Windows Vista Service Pack 1 and Windows Vista Service Pack 2 Elevation of Privilege Important None
Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2 Elevation of Privilege Important None
Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2* Elevation of Privilege Important None
Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2* Elevation of Privilege Important None
Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2 Elevation of Privilege Important None
Windows 7 for 32-bit Systems Elevation of Privilege Important None
Windows 7 for x64-based Systems Elevation of Privilege Important None
Windows Server 2008 R2 for x64-based Systems* Elevation of Privilege Important None
Windows Server 2008 R2 for Itanium-based Systems Elevation of Privilege Important None

*Server Core installation affected. This update applies, with the same severity rating, to supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, whether or not installed using the Server Core installation option. For more information on this installation option, see the TechNet articles, Managing a Server Core Installation and Servicing a Server Core Installation. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008 and Windows Server 2008 R2; see Compare Server Core Installation Options.

Where are the file information details?
Refer to the reference tables in the Security Update Deployment section for the location of the file information details.

Why is this vulnerability rated as a higher severity on Windows XP systems?
On Windows XP, the guest account is enabled by default, which allows anonymous users to access printer shares. On Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2, an attacker must be authenticated in order to exploit this vulnerability unless password-based sharing is disabled. If password-based sharing is disabled, attackers could exploit these systems without authentication.

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. For more information about the product lifecycle, visit the Microsoft Support Lifecycle Web site.

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. To determine the support lifecycle for your software release, see Select a Product for Lifecycle Information. For more information about service packs for these software releases, see Lifecycle Supported Service Packs.

Customers who require custom support for older software 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 the Microsoft Worldwide Information Web site, select the country in the Contact Information list, 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 Microsoft Support Lifecycle Policy FAQ.

Vulnerability Information

Severity Ratings and Vulnerability Identifiers

The following severity ratings assume the potential maximum impact of the vulnerability. For information regarding the likelihood, within 30 days of this security bulletin's release, of the exploitability of the vulnerability in relation to its severity rating and security impact, please see the Exploitability Index in the September bulletin summary. For more information, see Microsoft Exploitability Index.

Affected Software Print Spooler Service Impersonation Vulnerability - CVE-2010-2729 Aggregate Severity Rating
Windows XP Service Pack 3 Critical \ Remote Code Execution Critical
Windows XP Professional x64 Edition Service Pack 2 Critical \ Remote Code Execution Critical
Windows Server 2003 Service Pack 2 Important \ Elevation of Privilege Important
Windows Server 2003 x64 Edition Service Pack 2 Important \ Elevation of Privilege Important
Windows Server 2003 with SP2 for Itanium-based Systems Important \ Elevation of Privilege Important
Windows Vista Service Pack 1 and Windows Vista Service Pack 2 Important \ Elevation of Privilege Important
Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2 Important \ Elevation of Privilege Important
Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2* Important \ Elevation of Privilege Important
Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2* Important \ Elevation of Privilege Important
Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2 Important \ Elevation of Privilege Important
Windows 7 for 32-bit Systems Important \ Elevation of Privilege Important
Windows 7 for x64-based Systems Important \ Elevation of Privilege Important
Windows Server 2008 R2 for x64-based Systems* Important \ Elevation of Privilege Important
Windows Server 2008 R2 for Itanium-based Systems Important \ Elevation of Privilege Important

*Server Core installation affected. This update applies, with the same severity rating, to supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, whether or not installed using the Server Core installation option. For more information on this installation option, see the TechNet articles, Managing a Server Core Installation and Servicing a Server Core Installation. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008 and Windows Server 2008 R2; see Compare Server Core Installation Options.

A remote code execution vulnerability exists in the Windows Print Spooler service that could allow a remote, unauthenticated attacker to execute arbitrary code on an affected Windows XP system. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts. This is an elevation of privilege vulnerability on all other supported Microsoft Windows systems.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2010-2729.

Mitigating Factors for Print Spooler Service Impersonation Vulnerability - CVE-2010-2729

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:

  • By default, printers are not shared on any of the currently supported Windows operating systems.
  • Systems are only vulnerable to remote attack when sharing a printer and the remote attacker can access the printer share.
  • Firewall best practices and standard default firewall configurations can help protect networks 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.

Workarounds for Print Spooler Service Impersonation Vulnerability - CVE-2010-2729

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:

  • Block ports associated with RPC at the firewall

    • UDP ports 135, 137, 138, and 445, and TCP ports 135, 139, 445, and 593
    • All unsolicited inbound traffic on ports greater than 1024
    • Any other specifically configured RPC port

    These ports are used to initiate a connection with RPC. Blocking them at the firewall will help protect systems that are behind that firewall from attempts to exploit this vulnerability. Also, make sure that you block any other specifically configured RPC port on the remote system. 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 the TechNet article, 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

    How to undo the workaround. Unblock UDP ports 135, 137, 138, and 445, and TCP ports 135, 139, 445, and 593 at the firewall. For more information about ports, see TCP and UDP Port Assignments.

  • Disable printer sharing

    To disable printer sharing, perform the following actions:

    On Windows XP and Windows 2003 systems

    1. Click Start, and then click Printer and Faxes.
    2. Right-click the printer icon and select Sharing.
    3. Select Do Not Share This Printer, and then click OK.
    4. Repeat this process for each printer shared on the system.

    On all later Windows operating systems:

    1. Click Start, and then click Devices and Printers.
    2. Right-click the printer icon and select Printer properties.
    3. Select the Sharing tab.
    4. Ensure the Share this printer option is not selected, and then click OK.
    5. Repeat this process for each printer shared on the system.

    Impact of workaround. By disabling this feature, remote users will not be able to print to the affected printer.

    How to undo the workaround:

    On Windows XP and Windows 2003 systems:

    1. Click Start, and then click Printer and Faxes.
    2. Right-click the printer icon and select Sharing.
    3. Select Share This Printer, and then click OK.
    4. Repeat this process for each printer shared on the system.

    On all later Windows operating systems:

    1. Click Start, and then click Devices and Printers.
    2. Right-click the printer icon and select Printer properties.
    3. Select the Sharing tab.
    4. Select the Share this printer option, and then click OK.
    5. Repeat this process for each printer shared on the system.

FAQ for Print Spooler Service Impersonation Vulnerability - CVE-2010-2729

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. An attacker could then install programs; view, change, or delete data; or create new accounts.

What causes the vulnerability? 
This vulnerability is caused when the Windows Print Spooler insufficiently restricts user permissions to access print spoolers.

What is the Print Spooler service? 
The Print Spooler service is an executable file that is installed as a service. The spooler is loaded when the operating system starts, and it continues to run until the operating system is shut down. The Print Spooler service manages the printing process, which includes such tasks as retrieving the location of the correct printer driver, loading that driver, spooling high-level function calls into a print job, and scheduling print jobs. When the tasks for a particular print job are complete, the Print Spooler service passes the job to the print router. For more information, see the TechNet article, How Network Printing Works.

What might an attacker use the vulnerability to do? 
An attacker who successfully exploited this vulnerability could run arbitrary code on a user's system with system privileges. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts.

How could an attacker exploit the vulnerability? 
An attacker could exploit this vulnerability by crafting and sending a malicious print request to a vulnerable system that has a print spooler interface exposed over RPC. The target system would not properly validate whether the remote user has sufficient permissions, and permit the remote attacker to create a file in a Windows system directory. When dropped in particular locations, these files may be automatically executed by the system.

What systems are primarily at risk from the vulnerability? 
Workstations and terminal servers that share a printer, or print servers are primarily at risk. Servers could be at more risk if administrators allow users to log on to servers and to run programs. However, best practices strongly discourage allowing this.

What does the update do? 
The update addresses the vulnerability by correcting the manner in which the Printer Spooler service validates user permissions to access print spoolers.

When this security bulletin was issued, had this vulnerability been publicly disclosed? 
Yes. This vulnerability has been publicly disclosed. It has been assigned Common Vulnerability and Exposure number CVE-2010-2729.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited? 
Yes. At the time this bulletin was released, this vulnerability was being exploited on a limited scale by malware.

Update Information

Detection and Deployment Tools and Guidance

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 and Windows 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 provides detection and deployment guidance for security updates. This guidance contains recommendations and information that can help IT professionals understand how to use various tools for detection and deployment of security updates. For more information, see Microsoft Knowledge Base Article 961747.

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
Windows XP Service Pack 3 Yes
Windows XP Professional x64 Edition Service Pack 2 Yes
Windows Server 2003 Service Pack 2 Yes
Windows Server 2003 x64 Edition Service Pack 2 Yes
Windows Server 2003 with SP2 for Itanium-based Systems Yes
Windows Vista Service Pack 1 and Windows Vista Service Pack 2 Yes
Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2 Yes
Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2 Yes
Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2 Yes
Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2 Yes
Windows 7 for 32-bit Systems Yes
Windows 7 for x64-based Systems Yes
Windows Server 2008 R2 for x64-based Systems Yes
Windows Server 2008 R2 for Itanium-based Systems Yes

Note For customers using legacy software not supported by the latest release of MBSA, Microsoft Update, and Windows Server Update Services, please visit Microsoft Baseline Security Analyzer and reference the Legacy Product Support section on how to create comprehensive security update detection with legacy tools.

Windows Server Update Services

Windows Server Update Services (WSUS) enables information technology administrators to deploy the latest Microsoft product updates to computers that are running the Windows operating system. For more information about how to deploy security updates using Windows Server Update Services, see the TechNet article, Windows Server Update Services.

Systems Management Server

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

Software SMS 2.0 SMS 2003 with SUIT SMS 2003 with ITMU Configuration Manager 2007
Windows XP Service Pack 3 Yes Yes Yes Yes
Windows XP Professional x64 Edition Service Pack 2 No No Yes Yes
Windows Server 2003 Service Pack 2 Yes Yes Yes Yes
Windows Server 2003 x64 Edition Service Pack 2 No No Yes Yes
Windows Server 2003 with SP2 for Itanium-based Systems No No Yes Yes
Windows Vista Service Pack 1 and Windows Vista Service Pack 2 No No Yes Yes
Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2 No No Yes Yes
Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2 No No Yes Yes
Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2 No No Yes Yes
Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2 No No Yes Yes
Windows 7 for 32-bit Systems No No Yes Yes
Windows 7 for x64-based Systems No No Yes Yes
Windows Server 2008 R2 for x64-based Systems No No Yes Yes
Windows Server 2008 R2 for Itanium-based Systems No No Yes Yes

For SMS 2.0 and SMS 2003, 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. For more information about SMS 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.

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.

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.

Security Update Deployment

Affected Software

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

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 intervention For Windows XP Service Pack 3:\ WindowsXP-KB2347290-x86-enu.exe /quiet
For Windows XP Professional x64 Edition Service Pack 2:\ WindowsServer2003.WindowsXP-KB2347290-x64-enu.exe /quiet
Installing without restarting For Windows XP Service Pack 3:\ WindowsXP-KB2347290-x86-enu.exe /norestart
For Windows XP Professional x64 Edition Service Pack 2:\ WindowsServer2003.WindowsXP-KB2347290-x64-enu.exe /norestart
Update log file KB2347290.log
Further information See the subsection, Detection and Deployment Tools and Guidance
Restart Requirement
Restart required? Yes, you must restart your system after you apply this security update.
HotPatching Not applicable
Removal Information Use Add or Remove Programs tool in Control Panel or the Spuninst.exe utility located in the %Windir%$NTUninstallKB2347290$\Spuninst folder
File Information See Microsoft Knowledge Base Article 2347290
Registry Key Verification For all supported 32-bit editions of Windows XP:\ HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows XP\SP4\KB2347290\Filelist
For all supported x64-based editions of Windows XP:\ HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows XP Version 2003\SP3\KB2347290\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.

Switch Description
/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.

Switch Description
/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 intervention For all supported 32-bit editions of Windows Server 2003:\ WindowsServer2003-KB2347290-x86-enu.exe /quiet
For all supported x64-based editions of Windows Server 2003:\ WindowsServer2003.WindowsXP-KB2347290-x64-enu.exe /quiet
For all supported Itanium-based editions of Windows Server 2003:\ WindowsServer2003-KB2347290-ia64-enu.exe /quiet
Installing without restarting For all supported 32-bit editions of Windows Server 2003:\ WindowsServer2003-KB2347290-x86-enu.exe /norestart
For all supported x64-based editions of Windows Server 2003:\ WindowsServer2003.WindowsXP-KB2347290-x64-enu.exe /norestart
For all supported Itanium-based editions of Windows Server 2003:\ WindowsServer2003-KB2347290-ia64-enu.exe /norestart
Update log file KB2347290.log
Further information See the subsection, Detection and Deployment Tools and Guidance
Restart Requirement
Restart required? Yes, you must restart your system after you apply this security update.
HotPatching This 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%$NTUninstallKB2347290$\Spuninst folder
File Information See Microsoft Knowledge Base Article 2347290
Registry Key Verification HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows Server 2003\SP3\KB2347290\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.

Switch Description
/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.

Switch Description
/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 intervention For all supported 32-bit editions of Windows Vista:\ Windows6.0-KB2347290-x86.msu /quiet
For all supported x64-based editions of Windows Vista:\ Windows6.0-KB2347290-x64.msu /quiet
Installing without restarting For all supported 32-bit editions of Windows Vista:\ Windows6.0-KB2347290-x86.msu /quiet /norestart
For all supported x64-based editions of Windows Vista:\ Windows6.0-KB2347290-x64.msu /quiet /norestart
Further information See the subsection, Detection and Deployment Tools and Guidance
Restart Requirement
Restart required? Yes, you must restart your system after you apply this security update.
HotPatching Not 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 2347290
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.

Switch Description
/?, /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 the Start Search box.
    2. When the file appears under Programs, right-click the file name and click Properties.
    3. On the General tab, compare the file size with the file information tables provided in the bulletin KB article.
    4. You can also click 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 can also click 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 intervention For all supported 32-bit editions of Windows Server 2008:\ Windows6.0-KB2347290-x86.msu /quiet
For all supported x64-based editions of Windows Server 2008:\ Windows6.0-KB2347290-x64.msu /quiet
For all supported Itanium-based editions of Windows Server 2008:\ Windows6.0-KB2347290-ia64.msu /quiet
Installing without restarting For all supported 32-bit editions of Windows Server 2008:\ Windows6.0-KB2347290-x86.msu /quiet /norestart
For all supported x64-based editions of Windows Server 2008:\ Windows6.0-KB2347290-x64.msu /quiet /norestart
For all supported Itanium-based editions of Windows Server 2008:\ Windows6.0-KB2347290-ia64.msu /quiet /norestart
Further information See the subsection, Detection and Deployment Tools and Guidance
Restart Requirement
Restart required? Yes, you must restart your system after you apply this security update.
HotPatching Not 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 2347290
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.

Switch Description
/?, /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 the Start Search box.
    2. When the file appears under Programs, right-click the file name and click Properties.
    3. On the General tab, compare the file size with the file information tables provided in the bulletin KB article.
    4. You can also click 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 can also click 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 7 (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 intervention For all supported 32-bit editions of Windows 7:\ Windows6.1-KB2347290-x86.msu /quiet
For all supported x64-based editions of Windows 7:\ Windows6.1-KB2347290-x64.msu /quiet
Installing without restarting For all supported 32-bit editions of Windows 7:\ Windows6.1-KB2347290-x86.msu /quiet /norestart
For all supported x64-based editions of Windows 7:\ Windows6.1-KB2347290-x64.msu /quiet /norestart
Further information See the subsection, Detection and Deployment Tools and Guidance
Restart Requirement
Restart required? Yes, you must restart your system after you apply this security update.
HotPatching Not applicable.
Removal Information To uninstall an update installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, and then under Windows Update, click View installed updates and select from the list of updates.
File Information See Microsoft Knowledge Base Article 2347290
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.

Switch Description
/?, /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.
/warnrestart:<seconds> When combined with /quiet, the installer will warn the user before initiating restart.
/promptrestart When combined with /quiet, the installer will prompt before initiating restart.
/forcerestart When combined with /quiet, the installer will forcefully close applications and initiate restart.
/log:<file name> Enables logging to specified file.
/extract:<destination> Extracts the package contents to the destination folder.
/uninstall /kb:<KB Number> Uninstalls the security update.

Note For more information about the wusa.exe installer, see "Windows Update Stand-alone Installer" in the TechNet article, Miscellaneous Changes in Windows 7.

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 the Search box.
    2. When the file appears under Programs, right-click the file name and click Properties.
    3. On the General tab, compare the file size with the file information tables provided in the bulletin KB article.
    4. You can also click 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 can also click 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 R2 (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 intervention For all supported x64-based editions of Windows Server 2008 R2:\ Windows6.1-KB2347290-x64.msu /quiet
For all supported Itanium-based editions of Windows Server 2008 R2:\ Windows6.1-KB2347290-ia64.msu /quiet
Installing without restarting For all supported x64-based editions of Windows Server 2008 R2:\ Windows6.1-KB2347290-x64.msu /quiet /norestart
For all supported Itanium-based editions of Windows Server 2008 R2:\ Windows6.1-KB2347290-ia64.msu /quiet /norestart
Further information See the subsection, Detection and Deployment Tools and Guidance
Restart Requirement
Restart required? Yes, you must restart your system after you apply this security update.
HotPatching Not applicable.
Removal Information To uninstall an update installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, and then under Windows Update, click View installed updates and select from the list of updates.
File Information See Microsoft Knowledge Base Article 2347290
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.

Switch Description
/?, /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.
/warnrestart:<seconds> When combined with /quiet, the installer will warn the user before initiating restart.
/promptrestart When combined with /quiet, the installer will prompt before initiating restart.
/forcerestart When combined with /quiet, the installer will forcefully close applications and initiate restart.
/log:<file name> Enables logging to specified file.
/extract:<destination> Extracts the package contents to the destination folder.
/uninstall /kb:<KB Number> Uninstalls the security update.

Note For more information about the wusa.exe installer, see "Windows Update Stand-alone Installer" in the TechNet article, Miscellaneous Changes in Windows 7.

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 the Start Search box.
    2. When the file appears under Programs, right-click the file name and click Properties.
    3. On the General tab, compare the file size with the file information tables provided in the bulletin KB article.
    4. You can also click 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 can also click 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

Acknowledgments

Microsoft thanks the following for working with us to help protect customers:

  • Sergey Golovanov, Alexander Gostev, Maxim Golovkin, and Alexey Monastyrsky of Kaspersky Lab, and Vitaly Kiktenko and Alexander Saprykin of Design and Test Lab for reporting the Print Spooler Service Impersonation Vulnerability (CVE-2010-2729)
  • Liam O Murchu of Symantec for reporting the Print Spooler Service Impersonation Vulnerability (CVE-2010-2729)

Microsoft Active Protections Program (MAPP)

To improve security protections for customers, Microsoft provides vulnerability information to major security software providers in advance of each monthly security update release. Security software providers can then use this vulnerability information to provide updated protections to customers via their security software or devices, such as antivirus, network-based intrusion detection systems, or host-based intrusion prevention systems. To determine whether active protections are available from security software providers, please visit the active protections Web sites provided by program partners, listed in Microsoft Active Protections Program (MAPP) Partners.

Support

  • Customers in the U.S. and Canada can receive technical support from Security Support or 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates. For more information about available support options, see Microsoft Help and Support.
  • 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 (September 14, 2010): Bulletin published.
  • V1.1 (September 29, 2010): Added a link to Microsoft Knowledge Base Article 2347290 under Known Issues in the Executive Summary.

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