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Microsoft Security Bulletin MS13-005 - Important

Vulnerability in Windows Kernel-Mode Driver Could Allow Elevation of Privilege (2778930)

Published: January 08, 2013 | Updated: February 12, 2013

Version: 1.2

General Information

Executive Summary

This security update resolves one privately reported vulnerability in Microsoft Windows. The vulnerability could allow elevation of privilege if an attacker runs a specially crafted application.

This security update is rated Important for all supported editions of Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows 8, Windows Server 2012, and Windows RT. 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 Windows kernel-mode driver handles window broadcast messages. 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. Most 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 at the earliest opportunity 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 2778930 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, see Microsoft Support Lifecycle.

Affected Software 

Operating SystemMaximum Security ImpactAggregate Severity RatingUpdates Replaced
Windows Vista
Windows Vista Service Pack 2
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Vista x64 Edition Service Pack 2
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Server 2008
Windows Server 2008 for 32-bit Systems Service Pack 2
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Server 2008 for x64-based Systems Service Pack 2
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Server 2008 for Itanium-based Systems Service Pack 2
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows 7
Windows 7 for 32-bit Systems
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows 7 for 32-bit Systems Service Pack 1
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows 7 for x64-based Systems
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows 7 for x64-based Systems Service Pack 1
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Server 2008 R2
Windows Server 2008 R2 for x64-based Systems
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Server 2008 R2 for x64-based Systems Service Pack 1
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Server 2008 R2 for Itanium-based Systems
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows 8
Windows 8 for 32-bit Systems
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows 8 for 64-bit Systems
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Server 2012
Windows Server 2012
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows RT
Windows RT[1]
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Server Core Installation Option
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Server 2008 R2 for x64-based Systems (Server Core installation)
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930
Windows Server 2012 (Server Core installation)
(KB2778930)
Elevation of PrivilegeImportantKB2779030 in MS12-078 replaced by KB2778930

[1]This update is available via Windows Update.

Non-Affected Software

Operating System
Microsoft Windows XP Service Pack 3
Microsoft Windows XP Professional x64 Edition Service Pack 2
Microsoft Windows Server 2003 Service Pack 2
Microsoft Windows Server 2003 x64 Edition Service Pack 2
Microsoft Windows Server 2003 for Itanium-based Systems Service Pack 2

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.

Where are the hashes of the security updates? 
The SHA1 and SHA2 hashes of the security updates can be used to verify the authenticity of downloaded security update packages. For the hash information pertaining to this update, see Microsoft Knowledge Base Article 2778930.

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, see the Microsoft Support Lifecycle website.

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 Service Pack Lifecycle Support Policy.

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, see the Microsoft Worldwide Information website, 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

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 January bulletin summary. For more information, see Microsoft Exploitability Index.

Vulnerability Severity Rating and Maximum Security Impact by Affected Software
Affected SoftwareWin32k Improper Message Handling Vulnerability - CVE-2013-0008Aggregate Severity Rating
Windows Vista Service Pack 2 Important
Elevation of Privilege
Important
Windows Vista x64 Edition Service Pack 2 Important
Elevation of Privilege
Important
Windows Server 2008 for 32-bit Systems Service Pack 2 Important
Elevation of Privilege
Important
Windows Server 2008 for x64-based Systems Service Pack 2 Important
Elevation of Privilege
Important
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 32-bit Systems Service Pack 1 Important
Elevation of Privilege
Important
Windows 7 for x64-based Systems Important
Elevation of Privilege
Important
Windows 7 for x64-based Systems Service Pack 1 Important
Elevation of Privilege
Important
Windows Server 2008 R2 for x64-based Systems Important
Elevation of Privilege
Important
Windows Server 2008 R2 for x64-based Systems Service Pack 1 Important
Elevation of Privilege
Important
Windows Server 2008 R2 for Itanium-based Systems Important
Elevation of Privilege
Important
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1 Important
Elevation of Privilege
Important
Windows 8 for 32-bit Systems Important
Elevation of Privilege
Important
Windows 8 for 64-bit Systems Important
Elevation of Privilege
Important
Windows Server 2012 Important
Elevation of Privilege
Important
Windows RT Important
Elevation of Privilege
Important
Server Core Installation Option
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) Important
Elevation of Privilege
Important
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) Important
Elevation of Privilege
Important
Windows Server 2008 R2 for x64-based Systems (Server Core installation) Important
Elevation of Privilege
Important
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Important
Elevation of Privilege
Important
Windows Server 2012 (Server Core installation) Important
Elevation of Privilege
Important

An elevation of privilege vulnerability exists when the Windows kernel improperly handles window broadcast messages. 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 with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2013-0008.

Mitigating Factors for Win32k Improper Message Handling Vulnerability - CVE-2013-0008

An attacker must have valid logon credentials and be able to log on locally to exploit this vulnerability.

Workarounds for Win32k Improper Message Handling Vulnerability - CVE-2013-0008

Microsoft has not identified any workarounds for this vulnerability

FAQ for Win32k Improper Message Handling Vulnerability - CVE-2013-0008

What is the scope of the vulnerability? 
This is an elevation of privilege vulnerability.

What causes the vulnerability? 
The vulnerability is caused when the Windows kernel-mode driver improperly handles window broadcast messages.

What is the Windows kernel-mode driver (win32k.sys)? 
Win32k.sys is a kernel-mode device driver and is the kernel part of the Windows subsystem. It contains the window manager, which controls window displays; manages screen output; collects input from the keyboard, mouse, and other devices; and passes user messages to applications. It also contains the Graphics Device Interface (GDI), which is a library of functions for graphics output devices. Finally, it serves as a wrapper for DirectX support that is implemented in another driver (dxgkrnl.sys).

What is the Windows kernel ? 
The Windows kernel is the core of the operating system. It provides system-level services such as device management and memory management, allocates processor time to processes, and manages error handling.

What might an attacker use the vulnerability to do? 
An attacker who successfully exploited this vulnerability could run arbitrary code in the context of a higher Integrity Level (IL) process. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

What is the Windows Integrity Mechanism?
The Windows integrity mechanism is a core component of the Windows security architecture that uses integrity levels (IL) to restrict the access permissions of applications running under the same user account and that are less trustworthy. The integrity level is a representation of the trustworthiness of running application processes and objects, such as files created by the application. The integrity mechanism provides the ability for resource managers, such as the file system, to use pre-defined policies that block processes of lower integrity, or lower trustworthiness, from reading or modifying objects of higher integrity. The integrity mechanism allows the Windows security model to enforce new access control restrictions that cannot be defined by granting user or group permissions in access control lists (ACLs).

How could an attacker exploit the vulnerability? 
This vulnerability requires that an attacker convince a user to run a specially crafted application.

What systems are primarily at risk from the vulnerability? 
Workstations and terminal 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 way that the Windows kernel-mode driver handles window broadcast messages.

When this security bulletin was issued, had this vulnerability been publicly disclosed? 
No. Microsoft received information about this vulnerability through coordinated vulnerability disclosure.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited? 
No. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers when this security bulletin was originally issued.

Update Information

Security Central

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 website 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, "MS12-001"), you can add all 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) lets administrators scan local and remote systems for missing security updates as well as common security misconfigurations. For more information, see Microsoft Baseline Security Analyzer.

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

Software MBSA
Windows Vista Service Pack 2Yes
Windows Vista x64 Edition Service Pack 2Yes
Windows Server 2008 for 32-bit Systems Service Pack 2Yes
Windows Server 2008 for x64-based Systems Service Pack 2Yes
Windows Server 2008 for Itanium-based Systems Service Pack 2Yes
Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1Yes
Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1Yes
Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1Yes
Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1Yes
Windows 8 for 32-bit SystemsNo
Windows 8 for 64-bit SystemsNo
Windows Server 2012No
Windows RTNo

Note For customers using legacy software not supported by the latest release of MBSA, Microsoft Update, and Windows Server Update Services, please see 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.

SoftwareSMS 2003 with ITMUSystem Center Configuration Manager (All Supported Versions)
Windows Vista Service Pack 2YesYes
Windows Vista x64 Edition Service Pack 2YesYes
Windows Server 2008 for 32-bit Systems Service Pack 2YesYes
Windows Server 2008 for x64-based Systems Service Pack 2YesYes
Windows Server 2008 for Itanium-based Systems Service Pack 2YesYes
Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1YesYes
Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1YesYes
Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1YesYes
Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1YesYes
Windows 8 for 32-bit SystemsYesYes
Windows 8 for 64-bit SystemsYesYes
Windows Server 2012YesYes
Windows RTNoNo

Note Microsoft discontinued support for SMS 2.0 on April 12, 2011. For SMS 2003, Microsoft also discontinued support for the Security Update Inventory Tool (SUIT) on April 12, 2011. Customers are encouraged to upgrade to System Center Configuration Manager. For customers remaining on SMS 2003 Service Pack 3, the Inventory Tool for Microsoft Updates (ITMU) is also an option.

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 uses WSUS 3.0 for detection of updates. For more information, see System Center.

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 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 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-KB2778930-x86.msu /quiet
For all supported x64-based editions of Windows Vista:
Windows6.0-KB2778930-x64.msu /quiet
Installing without restartingFor all supported 32-bit editions of Windows Vista:
Windows6.0-KB2778930-x86.msu /quiet /norestart
For all supported x64-based editions of Windows Vista:
Windows6.0-KB2778930-x64.msu /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 2778930
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 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.

      Note Depending on the edition of the operating system, or the programs that are installed on your system, some files that are listed in the file information table may not be installed.
    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.

      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.
    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 interventionFor all supported 32-bit editions of Windows Server 2008:
Windows6.0-KB2778930-x86.msu /quiet
For all supported x64-based editions of Windows Server 2008:
Windows6.0-KB2778930-x64.msu /quiet
For all supported Itanium-based editions of Windows Server 2008:
Windows6.0-KB2778930-ia64.msu /quiet
Installing without restartingFor all supported 32-bit editions of Windows Server 2008:
Windows6.0-KB2778930-x86.msu /quiet /norestart
For all supported x64-based editions of Windows Server 2008:
Windows6.0-KB2778930-x64.msu /quiet /norestart
For all supported Itanium-based editions of Windows Server 2008:
Windows6.0-KB2778930-ia64.msu /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 2778930
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 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.

      Note Depending on the edition of the operating system, or the programs that are installed on your system, some files that are listed in the file information table may not be installed.
    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.

      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.
    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 interventionFor all supported 32-bit editions of Windows 7:
Windows6.1-KB2778930-x86.msu /quiet
For all supported x64-based editions of Windows 7:
Windows6.1-KB2778930-x64.msu /quiet
Installing without restartingFor all supported 32-bit editions of Windows 7:
Windows6.1-KB2778930-x86.msu /quiet /norestart
For all supported x64-based editions of Windows 7:
Windows6.1-KB2778930-x64.msu /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 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 2778930
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.
/ 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.

      Note Depending on the edition of the operating system, or the programs that are installed on your system, some files that are listed in the file information table may not be installed.
    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.

      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.
    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 interventionFor all supported x64-based editions of Windows Server 2008 R2:
Windows6.1-KB2778930-x64.msu /quiet
For all supported Itanium-based editions of Windows Server 2008 R2:
Windows6.1-KB2778930-ia64.msu /quiet
Installing without restartingFor all supported x64-based editions of Windows Server 2008 R2:
Windows6.1-KB2778930-x64.msu /quiet /norestart
For all supported Itanium-based editions of Windows Server 2008 R2:
Windows6.1-KB2778930-ia64.msu /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 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 2778930
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.
/ 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.

      Note Depending on the edition of the operating system, or the programs that are installed on your system, some files that are listed in the file information table may not be installed.
    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.

      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.
    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 8 (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 8:
Windows8-RT-KB2778930-x86.msu /quiet
For all supported 64-bit editions of Windows 8:
Windows8-RT-KB2778930-x64.msu /quiet
Installing without restartingFor all supported 32-bit editions of Windows 8:
Windows8-RT-KB2778930-x86.msu /quiet /norestart
For all supported x64-bit editions of Windows 8:
Windows8-RT-KB2778930-x64.msu /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 To uninstall an update installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, click Windows Update, then click Installed updates and select from the list of updates.
File Information See Microsoft Knowledge Base Article 2778930
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.
/ 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

  • 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.

      Note Depending on the edition of the operating system, or the programs that are installed on your system, some files that are listed in the file information table may not be installed.
    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.

      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.
    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 2012 (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 editions of Windows Server 2012:
Windows8-RT-KB2778930-x64.msu /quiet
Installing without restartingFor all supported editions of Windows Server 2012:
Windows8-RT-KB2778930-x64.msu /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 To uninstall an update installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, click Windows Update, then click Installed updates and select from the list of updates.
File Information See Microsoft Knowledge Base Article 2778930
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.
/ 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

  • 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.

      Note Depending on the edition of the operating system, or the programs that are installed on your system, some files that are listed in the file information table may not be installed.
    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.

      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.
    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 RT (all editions)

Reference Table

The following table contains the security update information for this software.

Inclusion in Future Service Packs The update for this issue will be included in a future service pack or update rollup.
Deployment  
This update is available via Windows Update only.
Restart Requirement  
Restart required?Yes, you must restart your system after you apply this security update.
Removal Information Click Control Panel, click System and Security, and then under Windows Update, click Installed updates and select from the list of updates.
File Information See Microsoft Knowledge Base Article 2778930

Other Information

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 go to the active protections websites provided by program partners, listed in Microsoft Active Protections Program (MAPP) Partners.

Support

How to obtain help and support for this security update

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 (January 8, 2013): Bulletin published.
  • V1.1 (January 9, 2013): Corrected detection and deployment summary tables. This is an informational change only. Customers who have already successfully updated their systems do not need to take any action.
  • V1.2 (February 12, 2013): Added a link to Microsoft Knowledge Base Article 2778930 under Known Issues in the Executive Summary.

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