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MS15-050: Vulnerability in Service Control Manager could allow elevation of privilege: May 12, 2015

Support for Windows Server 2003 ended on July 14, 2015

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

Summary
This security update resolves a vulnerability in Windows Service Control Manager (SCM). This vulnerability is caused when SCM incorrectly verifies impersonation levels. The vulnerability could allow elevation of privilege if an attacker can first log on to the system and then run a specially crafted application that is designed to increase privileges.
Introduction
Microsoft has released security bulletin MS15-050. To learn more about this security bulletin:

How to obtain help and support for this security update

Help installing updates:Support for Microsoft Update

Security solutions for IT professionals:TechNet Security Troubleshooting and Support

Help protect your Windows-based computer from viruses and malware:Virus Solution and Security Center

Local support according to your country:International Support

More information

Security update deployment information

Windows Vista (all editions)

Reference table

The following table contains the security update information for this software.
Security update file namesFor all supported 32-bit editions of Windows Vista:
Windows6.0-KB3055642-x86.msu

For all supported x64-based editions of Windows Vista:
Windows6.0-KB3055642-x64.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementYes, you must restart your system after you apply this security update.
Removal informationWUSA.exe does not support uninstall of updates. To uninstall an update that is installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and then select from the list of updates.
File informationSee the file information section.
Registry key verificationNote A registry key does not exist to validate the presence of this update.

Windows Server 2008 (all editions)

Reference table

The following table contains the security update information for this software.
Security update file namesFor all supported 32-bit editions of Windows Server 2008:
Windows6.0-KB3055642-x86.msu

For all supported x64-based editions of Windows Server 2008:
Windows6.0-KB3055642-x64.msu

For all supported Itanium-based editions of Windows Server 2008:
Windows6.0-KB3055642-ia64.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementYes, you must restart your system after you apply this security update.
Removal informationWUSA.exe does not support uninstall of updates. To uninstall an update that is installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and then select from the list of updates.
File informationSee the file information section.
Registry key verificationNote A registry key does not exist to validate the presence of this update.

Windows 7 (all editions)

Reference Table

The following table contains the security update information for this software.
Security update file nameFor all supported 32-bit editions of Windows 7:
Windows6.1-KB3055642-x86.msu

For all supported x64-based editions of Windows 7:
Windows6.1-KB3055642-x64.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementYes, you must restart your system after you apply this security update.
Removal informationTo uninstall an update that is installed by WUSA, use the setup switch. Or, click Control Panel, and then click System and Security. Under Windows Update, click View installed updates, and then select from the list of updates.
File informationSee the file information section.
Registry key verificationNote A registry key does not exist to validate the presence of this update.

Windows Server 2008 R2 (all editions)

Reference Table

The following table contains the security update information for this software.
Security update file nameFor all supported x64-based editions of Windows Server 2008 R2:
Windows6.1-KB3055642-x64.msu

For all supported Itanium-based editions of Windows Server 2008 R2:
Windows6.1-KB3055642-ia64.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementYes, you must restart your system after you apply this security update.
Removal informationTo uninstall an update that is installed by WUSA, use the setup switch. Or, click Control Panel, and then click System and Security. Under Windows Update, click View installed updates, and then select from the list of updates.
File informationSee the file information section.
Registry key verificationNote A registry key does not exist to validate the presence of this update.

Windows 8 and Windows 8.1 (all editions)

Reference Table

The following table contains the security update information for this software.
Security update file nameFor all supported 32-bit editions of Windows 8:
Windows8-RT-KB3055642-x86.msu

For all supported x64-based editions of Windows 8:
Windows8-RT-KB3055642-x64.msu

For all supported 32-bit editions of Windows 8.1:
Windows8.1-KB3055642-x86.msu

For all supported x64-based editions of Windows 8.1:
Windows8.1-KB3055642-x64.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementYes, you must restart your system after you apply this security update.
Removal informationTo uninstall an update that is installed by WUSA, use the /Uninstall setup switch. Or, click Control Panel, click System and Security, and then click Windows Update. Under See also, click Installed updates, and then select from the list of updates.
File informationSee the file information section.
Registry key verificationNote A registry key does not exist to validate the presence of this update.

Windows Server 2012 and Windows Server 2012 R2 (all editions)

Reference Table

The following table contains the security update information for this software.
Security update file nameFor all supported editions of Windows Server 2012:
Windows8-RT-KB3055642-x64.msu

For all supported editions of Windows Server 2012 R2:
Windows8.1-KB3055642-x64.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementYes, you must restart your system after you apply this security update.
Removal informationTo uninstall an update that is installed by WUSA, use the /Uninstall setup switch. Or, click Control Panel, click System and Security, and then click Windows Update. Under See also, click Installed updates, and then select from the list of updates.
File informationSee the file information section.
Registry key verificationNote A registry key does not exist to validate the presence of this update.

Windows RT and Windows RT 8.1 (all editions)

Reference Table

The following table contains the security update information for this software.
DeploymentThese updates are available through Windows Update only.
Restart RequirementYes, you must restart your system after you apply this security update.
Removal InformationClick Control Panel, click System and Security, and then click Windows Update. Under See also, click Installed updates, and then select from the list of updates.
File InformationSee the file information section.
File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.

Windows Vista and Windows Server 2008 file information

  • The files that apply to a specific product, milestone (SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    VersionProductMilestoneService branch
    6.0.6002.18xxxWindows Vista SP2 and Windows Server 2008 SP2SP2GDR
    6.0.6002.23xxxWindows Vista SP2 and Windows Server 2008 SP2SP2LDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x86-based versions of Windows Vista and Windows Server 2008

File nameFile versionFile sizeDateTimePlatform
Services.exe6.0.6002.19369279,55210-Apr-201523:22x86
Services.mofNot Applicable2,86618-Sep-200621:46Not Applicable
Services.exe6.0.6002.23677280,57610-Apr-201523:18x86
Services.mofNot Applicable2,86607-May-201423:55Not Applicable

For all supported x64-based versions of Windows Vista and Windows Server 2008

File nameFile versionFile sizeDateTimePlatform
Services.exe6.0.6002.19369384,51210-Apr-201523:33x64
Services.mofNot Applicable2,86618-Sep-200621:44Not Applicable
Services.exe6.0.6002.23677385,02410-Apr-201523:44x64
Services.mofNot Applicable2,86607-May-201423:55Not Applicable
Services.exe6.0.6002.19369279,55210-Apr-201523:22x86
Services.mofNot Applicable2,86618-Sep-200621:46Not Applicable
Services.exe6.0.6002.23677280,57610-Apr-201523:18x86
Services.mofNot Applicable2,86607-May-201423:55Not Applicable

For all supported IA-64-based versions of Windows Server 2008

File nameFile versionFile sizeDateTimePlatform
Services.exe6.0.6002.19369744,44810-Apr-201523:23IA-64
Services.mofNot Applicable2,86603-Jan-200819:17Not Applicable
Services.exe6.0.6002.23677746,49610-Apr-201523:22IA-64
Services.mofNot Applicable2,86607-May-201423:54Not Applicable
Services.exe6.0.6002.19369279,55210-Apr-201523:22x86
Services.mofNot Applicable2,86618-Sep-200621:46Not Applicable
Services.exe6.0.6002.23677280,57610-Apr-201523:18x86
Services.mofNot Applicable2,86607-May-201423:55Not Applicable

Windows 7 and Windows Server 2008 R2 file information

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    VersionProductMilestoneService branch
    6.1.7601.18xxxWindows 7 and Windows Server 2008 R2SP1GDR
    6.1.7601.22xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x86-based versions of Windows 7

File nameFile versionFile sizeDateTimePlatform
Services.exe6.1.7601.18829259,07213-Apr-201503:19x86
Services.mofNot Applicable2,86604-Jul-201312:14Not Applicable
Services.ptxmlNot Applicable1,06112-Apr-201522:32Not Applicable
Services.exe6.1.7601.23033259,07211-Apr-201503:53x86
Services.mofNot Applicable2,86609-Jul-201306:07Not Applicable
Services.ptxmlNot Applicable1,06110-Apr-201523:15Not Applicable

For all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File nameFile versionFile sizeDateTimePlatform
Services.exe6.1.7601.18829328,70413-Apr-201503:28x64
Services.mofNot Applicable2,86604-Jul-201312:14Not Applicable
Services.ptxmlNot Applicable1,06112-Apr-201522:32Not Applicable
Services.exe6.1.7601.23033328,70411-Apr-201504:31x64
Services.mofNot Applicable2,86609-Jul-201306:15Not Applicable
Services.ptxmlNot Applicable1,06110-Apr-201523:28Not Applicable

For all supported IA-64-based versions of Windows Server 2008 R2

File nameFile versionFile sizeDateTimePlatform
Services.exe6.1.7601.18829683,52013-Apr-201502:21IA-64
Services.mofNot Applicable2,86604-Jul-201312:22Not Applicable
Services.ptxmlNot Applicable1,06112-Apr-201522:29Not Applicable
Services.exe6.1.7601.23033683,52011-Apr-201503:08IA-64
Services.mofNot Applicable2,86609-Jul-201306:10Not Applicable
Services.ptxmlNot Applicable1,06110-Apr-201523:13Not Applicable

Windows 8 and Windows Server 2012 file information

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    VersionProductMilestoneService branch
    6.2.920 0.16 xxxWindows 8 and Windows Server 2012RTMGDR
    6.2.920 0.20 xxxWindows 8 and Windows Server 2012RTMLDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x86-based versions of Windows 8

File nameFile versionFile sizeDateTimePlatform
Services.exe6.2.9200.17343333,31213-Apr-201504:06x86
Services.exe6.2.9200.21456332,28812-Apr-201522:34x86

For all supported x64-based versions of Windows 8 and Windows Server 2012

File nameFile versionFile sizeDateTimePlatform
Services.exe6.2.9200.17343417,28013-Apr-201505:32x64
Services.exe6.2.9200.21442411,13612-Apr-201522:31x64

Windows 8.1 and Windows Server 2012 R2 file information

For all supported x86-based versions of Windows 8.1

File nameFile versionFile sizeDateTimePlatform
Services.exe6.3.9600.17793333,62408-Apr-201522:59x86

For all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2

File nameFile versionFile sizeDateTimePlatform
Services.exe6.3.9600.17793410,12808-Apr-201522:55x64

File hash information

File nameSHA1 hashSHA256 hash
Windows6.0-KB3055642-ia64.msuA9D0AEEFC75C5925DBE16B9D14754BFD220FEE0A1A36443CB5B5D1D6517D2CA79FE375A42D1A4397E30F7465A11684D389258283
Windows6.0-KB3055642-x64.msu05FBCC383DFE1E46ED7EDF23A9E9B775EE5242ABAE965FC3BF5CF2EEEB754768E1B61BA05764403644436ECC1B32B66E3CECBDA2
Windows6.0-KB3055642-x86.msu6F6C0687C22FBF63C90EAB8D84F80F726D983C4385DD6C42FEDA9F2F56F79BC5A4089B4329B3866F177D7229472B58942A5F6B42
Windows6.1-KB3055642-ia64.msuAE806D548170FAC249B397C80933883A9F19B853C5F6CAD27C0664349A0BA62FEC0BD55BDCF5CAACEDA23EF862B83B2CF996B8C8
Windows6.1-KB3055642-x64.msuCC13DB5A18E3531C854E85263E66055CDD0816783632699001A0360350881035AD07AFA96E7E958C41C13924060950D37C1576C2
Windows6.1-KB3055642-x86.msu2F1AC561188E1AF40796273CE672DE6C73259202F4B2048C187D765153AD77F3F42CA6279BA8F83EBC89E50980F3423C8E47E866
Windows8.1-KB3055642-x64.msuDA4C9859885BC413462C7B73141CF42AAC807238221F9AA57C2347C3CDF4AE26E58177D199201DC13D47A53E70BDF39443376B62
Windows8.1-KB3055642-x86.msuB448FC6FBD8B9BA0951DEDABF00DCD523163E8A49C6D430199A79B41AEE2D1B57C3DDB0EEE585F0E3523CFBC741741C819D2751B
Windows8-RT-KB3055642-x64.msuB1ADE85117948215F943F4F2B15C3399BF0837D7EDA655683CA4139CA05FAF6C99AA39A6CBEBA9475C2A34A6CDCE437D64F35692
Windows8-RT-KB3055642-x86.msu4AC05C6692ADD3B39082CF938BBB8FC52CBD7637DD5E9386B1A700EA4ADAB8994C55EB479507E04AAE97B2006E42E752FB6AB72A
update security_patch security_update security bug flaw vulnerability malicious attacker exploit registry unauthenticated buffer overrun overflow specially-formed scope specially-crafted denial of service DoS TSE
Properties

Article ID: 3055642 - Last Review: 05/12/2015 17:04:00 - Revision: 1.0

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows RT 8.1, Windows Server 2012 Datacenter, Windows Server 2012 Standard, Windows Server 2012 Essentials, Windows Server 2012 Foundation, Windows 8 Enterprise, Windows 8 Pro, Windows 8, Windows RT, Windows Server 2008 R2 Service Pack 1, Windows 7 Service Pack 1, Windows Server 2008 Service Pack 2, Windows Vista Service Pack 2, Microsoft Windows Server 2003 Service Pack 2

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