Microsoft Security Bulletin MS07-021 Vulnerabilities in CSRSS Could Allow Remote Code Execution (930178)

Microsoft Security Bulletin MS07-021
Vulnerabilities in CSRSS Could Allow Remote Code Execution (930178)
Published: April 10, 2007

Version: 1.0
Summary

Who Should Read this Document: Customers who use Microsoft Windows

Impact of Vulnerability: Remote Code Execution

Maximum Severity Rating: Critical

Recommendation: Customers should apply the update immediately

Security Update Replacement: None

Affected Software:
•

Microsoft Windows 2000 Service Pack 4 — Download the update
•

Microsoft Windows XP Service Pack 2 — Download the update
•

Microsoft Windows XP Professional x64 Edition and Microsoft Windows XP Professional x64 Edition Service Pack 2 — Download the update
•

Microsoft Windows Server 2003, Microsoft Windows Server 2003 Service Pack 1, and Microsoft Windows Server 2003 Service Pack 2 — Download the update
•

Microsoft Windows Server 2003 for Itanium-based Systems, Microsoft Windows Server 2003 with SP1 for Itanium-based Systems, and Microsoft Windows Server 2003 with SP2 for Itanium-based Systems — Download the update
•

Microsoft Windows Server 2003 x64 Edition and Microsoft Windows Server 2003 x64 Edition Service Pack 2 — Download the update
•

Windows Vista — Download the update
•

Windows Vista x64 Edition — Download the update

The software in this list has been tested to determine whether the versions are affected. Other versions are either past their support life cycle or are not affected. To determine the support life cycle for your product and version, visit the Microsoft Support Lifecycle Web site.
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General Information

Executive Summary

Executive Summary:

This update resolves several newly discovered, privately and publicly disclosed vulnerabilities. Each vulnerability is documented in its own subsection in the Vulnerability Details section of this bulletin.

An attacker who successfully exploited the most severe of these vulnerabilities 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.

We recommend that customers apply the update immediately.

Severity Ratings and Vulnerability Identifiers:
Vulnerability Identifiers Impact of Vulnerability Windows 2000 Professional Service Pack 4 Windows 2000 Server Service Pack 4 Windows XP Service Pack 2 Windows Server 2003, Windows Server 2003 Service Pack 1, and Windows Server 2003 Service Pack 2 Windows Vista

MsgBox (CSRSS) Remote Code Execution Vulnerability - CVE-2006-6696

Remote Code Execution

Critical

Critical

Critical

Critical

Critical

CSRSS Local Elevation of Privilege Vulnerability - CVE-2007-1209

Elevation of Privilege

Not Affected

Not Affected

Not Affected

Not Affected

Important

CSRSS DoS Vulnerability - CVE-2006-6797

Denial of Service

Low

Moderate

Low

Moderate

Low

Aggregate Severity of All Vulnerabilities

Critical

Critical

Critical

Critical

Critical

This assessment is based on the types of systems that are affected by the vulnerability, their typical deployment patterns, and the effect that exploiting the vulnerability would have on them.

Note The severity ratings for non-x86 operating system versions map to the x86 operating system versions as follows:
•

The Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 severity rating is the same as the Windows XP Service Pack 2 severity rating.
•

The Windows Server 2003 for Itanium-based Systems severity rating is the same as the Windows Server 2003 severity rating.
•

The Windows Server 2003 with SP1 for Itanium-based Systems severity rating is the same as the Windows Server 2003 Service Pack 1 severity rating.
•

The Windows Server 2003 with SP2 for Itanium-based Systems severity rating is the same as the Windows Server 2003 Service Pack 2 severity rating.
•

The Windows Server 2003 x64 Edition severity rating is the same as the Windows Server 2003 Service Pack 1 severity rating.
•

The Windows Server 2003 x64 Edition Service Pack 2 severity rating is the same as the Windows Server 2003 Service Pack 2 severity rating.
•

The Windows Vista x64 Edition severity rating is the same as the Windows Vista severity rating.
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Frequently Asked Questions (FAQ) Related to This Security Update

Why does this update address several reported security vulnerabilities?
This update contains support for several vulnerabilities because the modifications that are required to address these issues are located in related files. Instead of having to install several updates that are almost the same, customers can install only this update.

I am using an older version of the software discussed in this security bulletin; what should I do?
The supported software called out under in this bulletin has been tested to determine whether the versions are affected. Other versions are past their support life cycle. To determine the support life cycle for your product and version, visit the Microsoft Support Lifecycle Web site.

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

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, and then click Go to see a list of telephone numbers. When you call, ask to speak with the local Premier Support sales manager. For more information, see the Windows Operating System Product Support Lifecycle FAQ.

Can I use the Microsoft Baseline Security Analyzer (MBSA) to determine whether this update is required?
The following table provides the MBSA detection summary for this security update.
Product MBSA 1.2.1 MBSA 2.0.1

Microsoft Windows 2000 Service Pack 4

Yes

Yes

Microsoft Windows XP Service Pack 2

Yes

Yes

Microsoft Windows XP Professional x64 Edition and Microsoft Windows XP Professional x64 Edition Service Pack 2

No

Yes

Microsoft Windows Server 2003 Service Pack 1, Microsoft Windows Server 2003 Service Pack 1, and Microsoft Windows Server 2003 Service Pack 2

Yes

Yes

Microsoft Windows Server 2003 for Itanium-based Systems, Microsoft Windows Server 2003 with SP1 for Itanium-based Systems, and Microsoft Windows Server 2003 with SP2 for Itanium-based Systems

No

Yes

Microsoft Windows Server 2003 x64 Edition and Microsoft Windows Server 2003 x64 Edition Service Pack 2

No

Yes

Windows Vista

No

See Note for Windows Vista below

Windows Vista x64 Edition

No

See Note for Windows Vista below

For more information about MBSA, visit the MBSA Web site. For more information about the software that Microsoft Update and MBSA 2.0 currently do not detect, see Microsoft Knowledge Base Article 895660.

Note for Windows Vista MBSA 2.0.1 is not supported on Windows Vista but supports remote scans of computers running Windows Vista. For additional information about MBSA support for Windows Vista, visit the MBSA Web site. See also Microsoft Knowledge Base Article 931943: Microsoft Baseline Security Analyzer (MBSA) support for Windows Vista.

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

Can I use Systems Management Server (SMS) to determine whether this update is required?
The following table provides the SMS detection summary for this security update.
Product SMS 2.0 SMS 2003

Microsoft Windows 2000 Service Pack 4

Yes

Yes

Microsoft Windows XP Service Pack 2

Yes

Yes

Microsoft Windows XP Professional x64 Edition and Microsoft Windows XP Professional x64 Edition Service Pack 2

No

Yes

Microsoft Windows Server 2003, Microsoft Windows Server 2003 Service Pack 1, and Microsoft Windows Server 2003 Service Pack 2

Yes

Yes

Microsoft Windows Server 2003 for Itanium-based Systems, Microsoft Windows Server 2003 with SP1 for Itanium-based Systems, and Microsoft Windows Server 2003 with SP2 for Itanium-based Systems

No

Yes

Microsoft Windows Server 2003 x64 Edition and Microsoft Windows Server 2003 x64 Edition Service Pack 2

No

Yes

SMS 2.0 and SMS 2003 Software Update Services (SUS) Feature Pack can use MBSA 1.2.1 for detection and therefore have the same limitation that is listed earlier in this bulletin related to programs that MBSA 1.2.1 does not detect.

For SMS 2.0, the SMS SUS Feature Pack, which includes the Security Update Inventory Tool (SUIT), can be used by SMS to detect security updates. SMS SUIT uses the MBSA 1.2.1 engine for detection. For more information about SUIT, visit the following Microsoft Web site. For more information about the limitations of SUIT, see Microsoft Knowledge Base Article 306460. The SMS SUS Feature Pack also includes the Microsoft Office Inventory Tool to detect required updates for Microsoft Office applications.

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, visit the following Microsoft Web site. SMS 2003 can also use the Microsoft Office Inventory Tool to detect required updates for Microsoft Office applications.

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.
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Vulnerability Details

MsgBox (CSRSS) Remote Code Execution Vulnerability - CVE-2006-6696:

A remote code execution vulnerability exists in the Windows Client/Server Run-time Subsystem (CSRSS) process because of the way that it handles error messages. An attacker could exploit the vulnerability by constructing a specially crafted application that could potentially allow remote code execution.

Additionally, if a user viewed a specially crafted Web site, an attacker who successfully exploited this vulnerability could take complete control of an affected system.

Mitigating Factors for MsgBox (CSRSS) Remote Code Execution Vulnerability - CVE-2006-6696:
•

In a local attack scenario an attacker must have valid logon credentials and be able to log on locally to exploit this vulnerability. The vulnerability could not be exploited remotely or by anonymous users.
•

In a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker would have no way to force users to visit a specially crafted Web site. Instead, an attacker would have to convince them to visit the Web site, typically by getting them to click a link that takes them to the attacker's Web site. After they click the link, they would be prompted to perform several actions. An attack could only occur after they performed these actions.
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Workarounds for MsgBox (CSRSS) Remote Code Execution Vulnerability - CVE-2006-6696:

We have not identified any workarounds for this vulnerability.
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FAQ for MsgBox (CSRSS) Remote Code Execution Vulnerability - CVE- CVE-2006-6696:

What is the scope of the vulnerability?
This is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could remotely 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.

What causes the vulnerability?
The vulnerability is caused by incorrect handling of error messages by the Windows Client/Server Run-time Subsystem (CSRSS).

What is the Client/Server Run-time Subsystem?
CSRSS is the user-mode portion of the Win32 subsystem. CSRSS stands for client/server run-time subsystem and is an essential subsystem that must be running at all times. CSRSS is responsible for console windows, creating and/or deleting threads.

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

Who could exploit the vulnerability?
In a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to attempt to exploit this vulnerability. An attacker would have no way to force users to visit a specially crafted Web site. Instead, an attacker would have to convince them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site. It could also be possible to display specially crafted Web content by using banner advertisements or by using other methods to deliver Web content to affected systems.

The vulnerability could also be exploited by a locally logged-on user by executing a specially crafted application.

What systems are primarily at risk from the vulnerability?
This vulnerability requires that either a user either be logged on locally and run a specially crafted application or that a user is logged on and visits a Web site for malicious action to occur.

Therefore, any systems where Internet Explorer is used frequently or where multiple users have permissions to log on locally and run untrusted applications, such as workstations or terminal servers, are at the most risk from this vulnerability.

Could the vulnerability be exploited over the Internet?
Yes. An attacker could try to exploit this vulnerability over the Internet. Firewall best practices and standard default firewall configurations can help protect against attacks that originate from the Internet. Microsoft has provided information about how you can help protect your PC. End users can visit the Protect Your PC Web site. IT professionals can visit the Security Guidance Center Web site.

What does the update do?
The update removes the vulnerability by modifying the way that the Client/Server Run-time Subsystem processes error messages.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
Yes. While the initial report was provided through responsible disclosure, the vulnerability was later disclosed publicly by another security researcher. It has been assigned Common Vulnerability and Exposure number CVE-2006-6696. It also has been named Vista Memory Corruption Zero-Day by the larger security community. This security bulletin addresses the publicly disclosed vulnerability as well as additional issues discovered through internal investigations.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
No. Microsoft had seen examples of proof of concept code published publicly but had not received any information to indicate that this vulnerability had been publicly used to attack customers when this security bulletin was originally issued.

Does applying this security update help protect customers from the code that has been published publicly that attempts to exploit this vulnerability?
This security update addresses the vulnerability that potentially could be exploited by using the published proof of concept code. The vulnerability that has been addressed has been assigned the Common Vulnerability and Exposure number CVE-2006-6696.
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CSRSS Local Elevation of Privilege Vulnerability - CVE-2007-1209:

A privilege elevation vulnerability exists in the way that the Windows 32 Client/Server Run-time Subsystem (CSRSS) handles its connections during the startup and stopping of processes.

Mitigating Factors for CSRSS Local Elevation of Privilege Vulnerability - CVE-2007-1209:

An attacker must have valid logon credentials and be able to log on locally to exploit this vulnerability. The vulnerability could not be exploited remotely or by anonymous users.
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Workarounds for CSRSS Local Elevation of Privilege Vulnerability - CVE-2007-1209:

We have not identified any workarounds for this vulnerability.
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FAQ for CSRSS Local Elevation of Privilege Vulnerability - CVE-2007-1209:

What is the scope of the vulnerability?
This is a privilege elevation 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 with full user rights. To attempt to exploit the vulnerability, an attacker must be able to log on locally to the system and run a program.

What causes the vulnerability?
The vulnerability is caused by the incorrect marshaling of system resources by the Client/Server Run-time Subsystem.

What is the Client/Server Run-time Subsystem?
CSRSS is the user-mode portion of the Win32 subsystem. CSRSS stands for client/server run-time subsystem and is an essential subsystem that must be running at all times. CSRSS is responsible for console windows, creating and/or deleting threads.

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

What systems are primarily at risk from the vulnerability?
Systems where multiple users have permissions to log on locally and run untrusted applications, are at the most risk from this vulnerability.

Could the vulnerability be exploited over the Internet?
No. An attacker must be able to log on to the specific system that is targeted for attack. An attacker cannot load and run a program remotely by using this vulnerability.

What does the update do?
The update removes the vulnerability by ensuring the memory resources utilized by the Client/Server Run-time Subsystem are freed appropriately after use.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
No. Microsoft received information about this vulnerability through responsible disclosure.
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CSRSS DoS Vulnerability - CVE-2006-6797:

A denial of service vulnerability exists in the Client/Server Run-time Subsystem (CSRSS) service because of the way it handles error messages. An attacker could exploit the vulnerability by running a specially crafted application causing the system to restart.

Mitigating Factors for CSRSS DoS Vulnerability - CVE-2006-6797:

An attacker must have valid logon credentials and be able to log on locally to exploit this vulnerability. The vulnerability could not be exploited remotely or by anonymous users.
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Workarounds for CSRSS DoS Vulnerability - CVE-2006-6797:

We have not identified any workarounds for this vulnerability.
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FAQ for CSRSS DoS Vulnerability - CVE-2006-6797:

What is the scope of the vulnerability?
This is a denial of service vulnerability. An attacker who exploited this vulnerability could cause the affected system to stop responding and automatically restart. Note that the denial of service vulnerability would not allow an attacker to run code or to elevate their user rights, but it could cause the affected system to stop accepting requests.

What causes the vulnerability?
The vulnerability is caused by incorrect error handling by the CSRSS service.

What is the Client/Server Run-time Subsystem?
CSRSS is the user-mode portion of the Win32 subsystem (with Win32.sys being the kernel-mode portion). CSRSS stands for client/server run-time subsystem and is an essential subsystem that must be running at all times. CSRSS is responsible for console windows, creating and/or deleting threads.

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could cause the affected system to stop responding.

Who could exploit the vulnerability?
To try to exploit the vulnerability, an attacker must be able to log on locally to a system and run a program.

How could an attacker exploit the vulnerability?
To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and cause the system to stop responding and restart.

What systems are primarily at risk from the vulnerability?
Windows systems where multiple users have permissions to log on locally and run untrusted applications are at the most risk from this vulnerability.

Could the vulnerability be exploited over the Internet?
No. An attacker must be able to log on to the specific system that is targeted for attack. An attacker cannot load and run a program remotely by using this vulnerability.

What does the update do?
The update removes the vulnerability by ensuring that the Client/Server Run-time Subsystem correctly processes error messages.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
No. Microsoft had seen examples of proof of concept code published publicly but had not received any information to indicate that this vulnerability had been publicly used to attack customers when this security bulletin was originally issued.

Does applying this security update help protect customers from the code that has been published publicly that attempts to exploit this vulnerability?
This security update addresses the vulnerability that potentially could be exploited by using the published proof of concept code. The vulnerability that has been addressed has been assigned the Common Vulnerability and Exposure number CVE-2006-6797.
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Security Update Information

Affected Software:

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

Windows 2000 (all versions)

Prerequisites
For Windows 2000, this security update requires Service Pack 4 (SP4). For Small Business Server 2000, this security update requires Small Business Server 2000 Service Pack 1a (SP1a) or Small Business Server 2000 running with Windows 2000 Server Service Pack 4 (SP4).

The software that is listed has been tested to determine whether the versions are affected. Other versions either no longer include security update support or may not be affected. To determine the support life cycle for your product and version, visit the Microsoft Support Lifecycle Web site.

For more information about how to obtain the latest service pack, see Microsoft Knowledge Base Article 260910.

Inclusion in Future Service Packs
There are no more service packs planned for this operating system. The update for this issue may be included in a future update rollup.

Installation Information

This security update supports the following setup switches.
Supported Security Update Installation 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 forces other applications to close at shutdown without saving open files first.

/warnrestart[:x]

Displays 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

Display 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 uninstallation.

/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. For more information about the Update.exe 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.

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt for Windows 2000 Service Pack 4:

Windows2000-kb930178-x86-enu /quiet

Note Use of the /quiet switch will suppress all messages. This includes suppressing failure messages. Administrators should use one of the supported methods to verify the installation was successful when they use the /quiet switch. Administrators should also review the KB930178.log file for any failure messages when they use this switch.

To install the security update without forcing the system to restart, use the following command at a command prompt for Windows 2000 Service Pack 4:

Windows2000-kb930178-x86-enu /norestart

For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site. For more information about how to deploy this security update using Windows Server Update Services, visit the Windows Server Update Services Web site. This security update will also be available through the Microsoft Update Web site.

Restart Requirement

You must restart your system after you apply this security update.

To remove this security update, use the Add or Remove Programs tool in Control Panel.

System administrators can also use the Spuninst.exe utility to remove this security update. The Spuninst.exe utility is located in the %Windir%\$NTUninstallKB930178$\Spuninst folder.
Supported Spuninst.exe 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 forces other applications to close at shutdown without saving open files first.

/warnrestart[:x]

Displays 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

Display 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.

File Information

The English version of this security update has the file attributes that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Windows 2000 Service Pack 4 and Small Business Server 2000:
File Name Version Date Time Size Folder

winsrv.dll

5.0.2195.7135

13-Mar-2007

09:44

245,520

winsrv.dll

5.0.2195.7135

13-Mar-2007

09:44

245,520

uniproc

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 frequently asked question, “Can I use the Microsoft Baseline Security Analyzer (MBSA) to determine whether this update is required?” in the section, Frequently Asked Questions (FAQ) Related to This Security Update, earlier in this bulletin.
•

File Version Verification

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

Click Start, and then click Search.

In the Search Results pane, click All files and folders under Search Companion.

In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.

In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

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

On the Version tab, determine the version of the file that is installed on your computer 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 following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows 2000\SP5\KB930178\Filelist

Note This registry key may not contain a complete list of installed files. Also, this registry key may not be created correctly when an administrator or an OEM integrates or slipstreams the security update into the Windows installation source files.
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Windows XP (all versions)

Prerequisites
This security update requires Windows XP Service Pack 2 or Windows XP Professional x64 Edition. For more information on how to obtain the latest Windows XP service pack, see Microsoft Knowledge Base Article 322389. For more information on how to how to obtain Service Pack 2 for Windows XP Professional, x64 Edition, see the Download Center.

Inclusion in Future Service Packs
The update for this issue will be included in a future service pack or update rollup.

Installation Information

This security update supports the following setup switches.
Supported Security Update Installation 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 forces other applications to close at shutdown without saving open files first.

/warnrestart[:x]

Displays 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

Display 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 uninstallation.

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

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt for Microsoft Windows XP:

Windowsxp-kb930178-x86-enu /quiet

Note Use of the /quiet switch will suppress all messages. This includes suppressing failure messages. Administrators should use one of the supported methods to verify the installation was successful when they use the /quiet switch. Administrators should also review the KB930178.log file for any failure messages when they use this switch.

To install the security update without forcing the system to restart, use the following command at a command prompt for Windows XP:

Windowsxp-kb930178-x86-enu /norestart

For information about how to deploy this security update by using Software Update Services, visit the Software Update Services Web site. For more information about how to deploy this security update using Windows Server Update Services, visit the Windows Server Update Services Web site. This security update will also be available through the Microsoft Update Web site.

Restart Requirement

You must restart your system after you apply this security update.

Removal Information

To remove this security update, use the Add or Remove Programs tool in Control Panel.

System administrators can also use the Spuninst.exe utility to remove this security update. The Spuninst.exe utility is located in the %Windir%\$NTUninstallKB930178$\Spuninst folder.
Supported Spuninst.exe 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 forces other applications to close at shutdown without saving open files first.

/warnrestart[:x]

Displays 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

Display 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.

File Information

The English version of this security update has the file attributes that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Windows XP Home Edition Service Pack 2, Windows XP Professional Service Pack 2, Windows XP Tablet PC Edition 2005, and Windows XP Media Center Edition 2005:
File Name Version Date Time Size Folder

winsrv.dll

5.1.2600.3103

17-Mar-2007

14:30

292,864

SP2GDR

winsrv.dll

5.1.2600.3103

17-Mar-2007

14:27

292,864

SP2QFE

Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2:
File Name Version Date Time Size Folder

winsrv.dll

5.2.3790.2902

21-Mar-2007

08:01

512,512

SP1GDR

winsrv.dll

5.2.3790.2902

21-Mar-2007

08:02

512,512

SP1QFE

winsrv.dll

5.2.3790.4043

21-Mar-2007

08:05

512,512

SP2GDR

winsrv.dll

5.2.3790.4043

21-Mar-2007

08:01

512,512

SP2QFE

Notes When you install these security updates, 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 Update.exe 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.

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 frequently asked question, “Can I use the Microsoft Baseline Security Analyzer (MBSA) to determine whether this update is required?” in the section, Frequently Asked Questions (FAQ) Related to This Security Update, earlier in this bulletin.
•

File Version Verification

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

Click Start, and then click Search.

In the Search Results pane, click All files and folders under Search Companion.

In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.

In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

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

On the Version tab, determine the version of the file that is installed on your computer 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 following registry keys.

For Windows XP Home Edition Service Pack 2, Windows XP Professional Service Pack 2, Windows XP Tablet PC Edition 2005, and Windows XP Media Center Edition 2005:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows XP\SP3\KB930178\Filelist

For Windows XP Professional x64 Edition and Windows XP Professional x64 Service Pack 2:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows XP Version 2003\SP3\KB930178\Filelist

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

Windows Server 2003 (all versions)

Prerequisites
This security update requires Windows Server 2003, Windows Server 2003 Service Pack 1, Windows Server 2003 Service Pack 2, Windows Server 2003 for Itanium-based Systems, Windows Server 2003 with SP1 for Itanium-based Systems, Windows Server 2003 with SP2 for Itanium-based Systems, Windows Server 2003 x64 Edition, or Windows Server 2003 x64 Edition Service Pack 2.

Inclusion in Future Service Packs
The update for this issue will be included in future service pack or update rollup.

Installation Information

This security update supports the following setup switches.
Supported Security Update Installation 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 forces other applications to close at shutdown without saving open files first.

/warnrestart[:x]

Displays 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

Display 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 uninstallation.

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

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt for Windows Server 2003:

Windowsserver2003-kb930178-x86-enu /quiet

Note Use of the /quiet switch will suppress all messages. This includes suppressing failure messages. Administrators should use one of the supported methods to verify the installation was successful when they use the /quiet switch. Administrators should also review the KB930178.log file for any failure messages when they use this switch.

To install the security update without forcing the system to restart, use the following command at a command prompt for Windows Server 2003:

Windowsserver2003-kb930178-x86-enu /norestart

For information about how to deploy this security update by using Software Update Services, visit the Software Update Services Web site. For more information about how to deploy this security update using Windows Server Update Services, visit the Windows Server Update Services Web site. This security update will also be available through the Microsoft Update Web site.

Restart Requirement

You must restart your system after you apply this security update.

This security update does not support HotPatching. For more information about HotPatching, see Microsoft Knowledge Base Article 897341.

This security update does not support HotPatching. For more information about HotPatching and how to deploy this security update as a HotPatch, see Microsoft Knowledge Base Article 897341.

Note Not all security updates support HotPatching, and some security updates that support HotPatching might require that you restart the server after you install the security update. HotPatching is only supported if the files being replaced by the security update are General Distribution Release (GDR) files. HotPatching is not supported if you have previously installed a hotfix to update one of the files included in the security update. For more information about this behavior, see Microsoft Knowledge Base Article 897341 and Microsoft Knowledge Base Article 824994.

Removal Information

To remove this update, use the Add or Remove Programs tool in Control Panel.

System administrators can also use the Spuninst.exe utility to remove this security update. The Spuninst.exe utility is located in the %Windir%\$NTUninstallKB930178$\Spuninst folder.
Supported Spuninst.exe 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 forces other applications to close at shutdown without saving open files first.

/warnrestart[:x]

Displays 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

Display 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.

File Information

The English version of this security update has the file attributes that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Windows Server 2003, Web Edition; Windows Server 2003, Standard Edition; Windows Server 2003, Datacenter Edition; Windows Server 2003, Enterprise Edition; Windows Small Business Server 2003; Windows Server 2003, Web Edition with SP1; Windows Server 2003, Standard Edition with SP1; Windows Server 2003, Enterprise Edition with SP1; Windows Server 2003, Datacenter Edition with SP1; Windows Server 2003 R2, Standard Edition; Windows Server 2003 R2, Datacenter Edition; Windows Server 2003 R2, Enterprise Edition; Windows Small Business Server 2003 R2, Windows Server 2003, Web Edition with SP2; Windows Server 2003, Standard Edition with SP2; Windows Server 2003, Enterprise Edition with SP2; Windows Server 2003, Datacenter Edition with SP2;; Windows Server 2003 R2, Standard Edition with SP2; Windows Server 2003 R2, Datacenter Edition with SP2; Windows Server 2003 R2, Enterprise Edition with SP2; and Windows Small Business Server 2003 R2 with SP2:
File Name Version Date Time Size Folder

winsrv.dll

5.2.3790.658

21-Mar-2007

06:08

298,496

RTMGDR

winsrv.dll

5.2.3790.658

21-Mar-2007

04:45

299,520

RTMQFE

winsrv.dll

5.2.3790.2902

21-Mar-2007

04:31

299,520

SP1GDR

winsrv.dll

5.2.3790.2902

21-Mar-2007

05:18

299,520

SP1QFE

winsrv.dll

5.2.3790.4043

21-Mar-2007

05:20

301,056

SP2GDR

winsrv.dll

5.2.3790.4043

21-Mar-2007

05:15

301,056

SP2QFE

Windows Server, 2003 Enterprise Edition for Itanium-based Systems; Windows Server 2003, Datacenter Edition for Itanium-based Systems; Windows Server 2003, Enterprise Edition with SP1 for Itanium-based Systems; and Windows Server 2003, Datacenter Edition with SP1 for Itanium-based Systems; Windows Server 2003, Enterprise Edition with SP2 for Itanium-based Systems; and Windows Server 2003, Datacenter Edition with SP2 for Itanium-based Systems:
File Name Version Date Time Size Folder

winsrv.dll

5.2.3790.658

21-Mar-2007

08:02

771,072

RTMGDR

winsrv.dll

5.2.3790.658

21-Mar-2007

08:02

772,608

RTMQFE

winsrv.dll

5.2.3790.2902

21-Mar-2007

08:02

818,688

SP1GDR

winsrv.dll

5.2.3790.2902

21-Mar-2007

08:03

818,688

SP1QFE

winsrv.dll

5.2.3790.4043

21-Mar-2007

08:05

818,688

SP2GDR

winsrv.dll

5.2.3790.4043

21-Mar-2007

08:02

818,688

SP2QFE

Windows Server 2003, Standard x64 Edition; Windows Server 2003, Enterprise x64 Edition; and Windows Server 2003, Datacenter x64 Edition; Windows Server 2003 R2, Standard x64 Edition; Windows Server 2003 R2, Enterprise x64 Edition; and Windows Server 2003 R2, Datacenter x64 Edition; Windows Server 2003 with SP2, Standard x64 Edition; Windows Server 2003 with SP2, Enterprise x64 Edition; and Windows Server 2003 with SP2, Datacenter x64 Edition; Windows Server 2003 R2, Standard x64 Edition with SP2; Windows Server 2003 R2, Enterprise x64 Edition with SP2; and Windows Server 2003 R2, Datacenter x64 Edition with SP2:
File Name Version Date Time Size Folder

winsrv.dll

5.2.3790.2902

21-Mar-2007

08:01

512,512

SP1GDR

winsrv.dll

5.2.3790.2902

21-Mar-2007

08:02

512,512

SP1QFE

winsrv.dll

5.2.3790.4043

21-Mar-2007

08:05

512,512

SP2GDR

winsrv.dll

5.2.3790.4043

21-Mar-2007

08:01

512,512

SP2QFE

Notes When you install these security updates, 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 this behavior, see Microsoft Knowledge Base Article 824994.

For more information about the Update.exe 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.

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 frequently asked question, “Can I use the Microsoft Baseline Security Analyzer (MBSA) to determine whether this update is required?” in the section, Frequently Asked Questions (FAQ) Related to This Security Update, earlier in this bulletin.
•

File Version Verification

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

Click Start, and then click Search.

In the Search Results pane, click All files and folders under Search Companion.

In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.

In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

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

On the Version tab, determine the version of the file that is installed on your computer 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 following registry keys.

Windows Server 2003, Web Edition; Windows Server 2003, Standard Edition; Windows Server 2003, Enterprise Edition; Windows Server 2003, Datacenter Edition; Windows Small Business Server 2003; Windows Server 2003, Enterprise Edition for Itanium-based Systems; Windows Server 2003, Datacenter Edition for Itanium-based Systems; Windows Server 2003 R2, Web Edition; Windows Server 2003 R2, Standard Edition; Windows Server 2003 R2, Datacenter Edition; Windows Server 2003 R2, Enterprise Edition; and Windows Small Business Server 2003 R2:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows Server 2003\SP3\KB930178\Filelist

Windows Server 2003, Web Edition; Windows Server 2003, Standard Edition; Windows Server 2003, Enterprise Edition; Windows Server 2003, Datacenter Edition; Windows Small Business Server 2003; Windows Server 2003, Web Edition with SP1; Windows Server 2003, Standard Edition with SP1; Windows Server 2003, Enterprise Edition with SP1; Windows Server 2003, Datacenter Edition with SP1; Windows Small Business Server 2003 with SP1; Windows Server 2003, Enterprise Edition for Itanium-based Systems; Windows Server 2003, Datacenter Edition for Itanium-based Systems; Windows Server 2003, Enterprise Edition with SP1 for Itanium-based Systems; Windows Server 2003, Datacenter Edition with SP1 for Itanium-based Systems; Windows Server 2003, Standard x64 Edition; Windows Server 2003, Enterprise x64 Edition; Windows Server 2003, Datacenter x64 Edition; Windows Server 2003 R2, Standard x64 Edition; Windows Server 2003 R2, Enterprise x64 Edition; Windows Server 2003 R2, Datacenter x64 Edition; Windows Server 2003, Enterprise Edition with SP2; Windows Server 2003, Datacenter Edition with SP2; and Windows Small Business Server 2003 R2 with SP2:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows Server 2003\SP3\KB930178\Filelist

Note This registry key may not contain a complete list of installed files. Also, this registry key may not be created correctly if an administrator or an OEM integrates or slipstreams the security update into the Windows installation source files.
Top of sectionTop of section

Windows Vista (all versions)

Prerequisites
This security update requires a released version of Windows Vista.

Inclusion in Future Service Packs
The update for this issue will be included in a future service pack or update rollup.

Installation Information
This security update supports the following setup switches.
Supported Security Update Installation 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.

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt for Windows Vista:

Windows6.0-KB930178-x86.msu /quiet

Note Use of the /quiet switch will suppress all messages including failure messages. Administrators should use one of the supported methods to verify the installation was successful. Administrators should also review the system event logs for any failure messages when they use this switch.

To install the security update without forcing the system to restart, use the following command at a command prompt for Windows Vista:

Windows6.0-KB930178-x86.msu /quiet /norestart

For more information about how to deploy this security update using Windows Server Update Services, visit the Windows Server Update Services Web site. This security update will also be available through the Microsoft Update Web site.

Restart Requirement

You must restart your system after you apply this security update.

Removal Information

To remove this update, click Control Panel, click Security, then under Windows Update, click View installed updates and select from the list of updates.

File Information

This security update has the file attributes that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Windows Vista Ultimate, Windows Vista Enterprise, Windows Vista Business, Windows Vista Home Premium, Windows Vista Home Basic, and Windows Vista Starter:
File Name Version Date Time Size Folder

csrsrv.dll

6.0.5600.20522

23-Feb-2007

04:04

49,664

KB930178\x86_microsoft-windows-csrsrv_31bf3856ad364e35_6.0.5600.20522_none_fd89691b0427207d

winsrv.dll

6.0.5600.20522

23-Feb-2007

04:05

348,672

KB930178\x86_microsoft-windows-winsrv_31bf3856ad364e35_6.0.5600.20522_none_ea80c8b7fb1eb45f

64-bit editions of Windows Vista Ultimate, Windows Vista Enterprise, Windows Vista Business, Windows Vista Home Premium, Windows Vista Home Basic, and Windows Vista Starter:
File Name Version Date Time Size CPU Folder

csrsrv.dll

6.0.6000.16445

24-Feb-2007

04:33

86,016

Windows6.0-KB930178-x64\amd64_microsoft-windows-csrsrv_31bf3856ad364e35_6.0.6000.16445_none_239951d960b07637

csrsrv.dll

6.0.6000.20544

24-Feb-2007

04:16

86,016

Windows6.0-KB930178-x64\amd64_microsoft-windows-csrsrv_31bf3856ad364e35_6.0.6000.20544_none_2421ee5a79cefcaa

winsrv.dll

6.0.6000.16445

24-Feb-2007

04:36

432,128

Windows6.0-KB930178-x64\amd64_microsoft-windows-winsrv_31bf3856ad364e35_6.0.6000.16445_none_1090b17657a80a19

winsrv.dll

6.0.6000.20544

24-Feb-2007

04:19

432,128

Windows6.0-KB930178-x64\amd64_microsoft-windows-winsrv_31bf3856ad364e35_6.0.6000.20544_none_11194df770c6908c

Note When you install this security update, Windows checks to see if one or more of the files that are being updated on your system have previously been updated by a Windows hotfix. If you have previously installed a hotfix to update one of these files, the installer will apply the LDR version of this update. Otherwise, the installer will apply the GDR version of the update.

For more information about this behavior, see Microsoft Knowledge Base Article 824994.

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

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

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 frequently asked question, “Can I use the Microsoft Baseline Security Analyzer (MBSA) to determine whether this update is required?” in the section, Frequently Asked Questions (FAQ) Related to This Security Update, earlier in this bulletin.
•

File Version Verification

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

Click Start and then enter an update file name in Start Search.

When the file appears under Programs, right-click on the file name and click Properties.

Under the General tab, compare the file size with the file information tables provided earlier in this section.

You may also click on the Details tab and compare information, such as file version and date modified, with the file information tables provided earlier in this section.

On the Details tab, determine the version of the file that is installed on your computer 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.
Top of sectionTop of section
Top of sectionTop of section

Acknowledgments

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

Tim Garnett of Determina Security Research for reporting the MsgBox (CSRSS) Remote Code Execution Vulnerability - CVE-2006-6696
•

eEye for reporting the CSRSS Local Elevation of Privilege Vulnerability - CVE-2007-1209

Obtaining Other Security Updates:

Updates for other security issues are available at the following locations:
•

Security updates are available at the Microsoft Download Center. You can find them most easily by doing a keyword search for "security_patch."
•

Updates for consumer platforms are available at the Microsoft Update Web site.

Support:
•

Customers in the U.S. and Canada can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates.
•

International customers can receive support from their local Microsoft subsidiaries. There is no charge for support that is associated with security updates. For more information about how to contact Microsoft for support issues, visit the International Support Web site.

Security Resources:
•

The Microsoft TechNet Security Web site provides additional information about security in Microsoft products.
•

TechNet Update Management Center
•

Microsoft Software Update Services
•

Microsoft Windows Server Update Services
•

Microsoft Baseline Security Analyzer (MBSA)
•

Windows Update
•

Microsoft Update
•

Windows Update Catalog: For more information about the Windows Update Catalog, see Microsoft Knowledge Base Article 323166.
•

Office Update

Software Update Services:

By using Microsoft Software Update Services (SUS), administrators can quickly and reliably deploy the latest critical updates and security updates to Windows 2000 and Windows Server 2003-based servers, and to desktop systems that are running Windows 2000 Professional or Windows XP Professional.

For more information about how to deploy security updates by using Software Update Services, visit the Software Update Services Web site.

Windows Server Update Services:

By using Windows Server Update Services (WSUS), administrators can quickly and reliably deploy the latest critical updates and security updates for Windows 2000 operating systems and later, Office XP and later, Exchange Server 2003, and SQL Server 2000 onto Windows 2000 and later operating systems.

For more information about how to deploy security updates using Windows Server Update Services, visit the Windows Server Update Services Web site.

Systems Management Server:

Microsoft Systems Management Server (SMS) delivers a highly configurable enterprise solution for managing updates. By using SMS, administrators can identify Windows-based systems that require security updates and can perform controlled deployment of these updates throughout the enterprise with minimal disruption to end users. For more information about how administrators can use SMS 2003 to deploy security updates, visit the SMS 2003 Security Patch Management Web site. SMS 2.0 users can also use Software Updates Service Feature Pack to help deploy security updates. For information about SMS, visit the SMS Web site.

Note SMS uses the Microsoft Baseline Security Analyzer, the Microsoft Office Detection Tool, and the Enterprise Update Scan Tool to provide broad support for security bulletin update detection and deployment. Some software updates may not be detected by these tools. Administrators can use the inventory capabilities of the SMS in these cases to target updates to specific systems. For more information about this procedure, visit the following Web site. Some security updates require administrative rights following a restart of the system. Administrators can use the Elevated Rights Deployment Tool (available in the SMS 2003 Administration Feature Pack and in the SMS 2.0 Administration Feature Pack) to install these updates.

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 (April 10, 2007): Bulletin published.