MS15-004: Vulnerability in Windows components could allow elevation of privilege: January 13, 2015

Summary

This security update resolves a vulnerability in the TS WebProxy Windows component that could allow elevation of privilege if an attacker convinces a user to run a specially crafted application. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on by using administrative user rights, an attacker could then do the following:

  • Install programs

  • View, change, or delete data

  • Create new accounts that have full user rights

Customers whose accounts are configured to have fewer user rights on the system could be less affected than users who operate by using administrative user rights.

Introduction

Microsoft has released security bulletin MS15-004. 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
 

Important

  • All updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require 2919355 to be installed. We recommend that you install update 2919355 on your Windows RT 8.1-based, Windows 8.1-based, or Windows Server 2012 R2-based computer so that you receive updates in the future.

  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

More Information

Known issues and additional information about this security update

The following articles contain additional information about this security update as it relates to individual product versions. The articles may contain known issue information. If this is the case, the known issue is listed under each article link.

  • 3019978 MS15-004: Description of the security update for Windows: January 13, 2015

  • 3020387 MS15-004: Description of the security update for Windows 7 and Windows Server 2008 R2: January 13, 2015

  • 3020388 MS15-004: Description of the security update for Windows 7 and Windows Server 2008 R2: January 13, 2015

  • 3023299 MS15-004: Description of the security update for Windows Vista: January 13, 2015

Windows Vista (all editions)Reference Table

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

Security update file names

For all supported 32-bit editions of Windows Vista:
Windows6.0-KB3023299-x86.msu

For all supported x64-based editions of Windows Vista:
Windows6.0-KB3023299-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, a message appears that advises you to restart.

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 3023299

Registry key verification

Note 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 name

For all supported 32-bit editions of Windows 7:
Windows6.1-KB3019978-x86.msu
Windows6.1-KB3020387-x86.msu
Windows6.1-KB3020388-x86.msu

For all supported x64-based editions of Windows 7:
Windows6.1-KB3019978-x64.msu
Windows6.1-KB3020387-x64.msu
Windows6.1-KB3020388-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

This update does not require a restart. The installer stops the required services, applies the update, and then restarts the services. However, if the required services cannot be stopped for any reason, or if required files are being used, this update will require a restart. If this behavior occurs, a message appears that advises you to restart.

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 3019978
See Microsoft Knowledge Base Article 3020387
See Microsoft Knowledge Base Article 3020388

Registry key verification

Note 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 name

For all supported x64-based editions of Windows Server 2008 R2:
Windows6.1-KB3019978-x64.msu
Windows6.1-KB3020387-x64.msu
Windows6.1-KB3020388-x64.msu

For all supported Itanium-based editions of Windows Server 2008 R2:
Windows6.1-KB3019978-ia64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

This update does not require a restart. The installer stops the required services, applies the update, and then restarts the services. However, if the required services cannot be stopped for any reason, or if required files are being used, this update will require a restart. If this behavior occurs, a message appears that advises you to restart.

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 3019978
See Microsoft Knowledge Base Article 3020387
See Microsoft Knowledge Base Article 3020388

Registry key verification

Note 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 name

For all supported 32-bit editions of Windows 8:
Windows8-RT-KB3019978-x86.msu

For all supported x64-based editions of Windows 8:
Windows8-RT-KB3019978-x64.msu

For all supported 32-bit editions of Windows 8.1:
Windows8.1-KB3019978-x86.msu

For all supported x64-based editions of Windows 8.1:
Windows8.1-KB3019978-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

This update does not require a restart. The installer stops the required services, applies the update, and then restarts the services. However, if the required services cannot be stopped for any reason, or if required files are being used, this update will require a restart. If this behavior occurs, a message appears that advises you to restart.

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, and then under See also, click Installed updates and select from the list of updates.

File information

See Microsoft Knowledge Base Article 3019978

Registry key verification

Note 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 name

For all supported editions of Windows Server 2012:
Windows8-RT-KB3019978-x64.msu

For all supported editions of Windows Server 2012 R2:
Windows8.1-KB3019978-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

This update does not require a restart. The installer stops the required services, applies the update, and then restarts the services. However, if the required services cannot be stopped for any reason, or if required files are being used, this update will require a restart. If this behavior occurs, a message appears that advises you to restart.

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, and then under See also, click Installed updates and select from the list of updates.

File information

See Microsoft Knowledge Base Article 3019978

Registry key verification

Note 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.

Deployment

These updates are available via Windows Update only.

Restart Requirement

Yes, you must restart your system after you apply this security update.

Removal Information

Click Control Panel, click System and Security, click Windows Update, and then under See also, click Installed updates and select from the list of updates.

File Information

See Microsoft Knowledge Base Article 3019978


File information

File name

SHA1 hash

SHA256 hash

Windows6.0-KB3023299-x86.msu

46B2E62E8137750D0EC6418E47D7ADDB48ABF384

47B91ED7D6C33C24F21431650515159E06FF0B780590C3426E2DC8AD3198A674

Windows6.1-KB3019978-ia64.msu

2D018FA94806D376F78CD52DF3D6CD6E88E5E6D8

193C6DB40C06F6A807E990B6EEBE92CBF333967737C33A4B6D24CA961EB663E2

Windows6.1-KB3019978-x86.msu

B6845AFC1C86A99E8D663036215DF67EADD83EC1

AA0A7F3F79395377CF4CCB415FD50663AE6C3BE50968C9767F3290FED8097562

Windows6.1-KB3020387-x86.msu

294999CD4AB3D07F282E8881C1D9FFC55E07B908

F1A1882487CB70884236DDC086A5BCA2887729F53377B37E19E160380239902F

Windows6.1-KB3020388-x86.msu

837E0478BCE5D45A7E483AE2AB65056C74A7940D

EB939C00A46AB37B2A1C9CD917801BFC92D22ECC205F2DA3FE8907E23D62F8DA

Windows8.1-KB3019978-x86.msu

071C80470CDBB687E43EEB809B097EA7DAF3E40B

A4C87C733343A606FE872A91355A90AACD06D2D08295AA08655FD24301D51900

Windows8-RT-KB3019978-x86.msu

A31EC4D9B6170858374D8DF3FCF1AC7C7D86086D

C0E1CBBEF04D72DEC273F9D2382281DFD34067C066AC1910C9915B3B0719399E


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