MS15-037: Vulnerability in Windows Task Scheduler could allow elevation of privilege: April 14, 2015

Applies To
Windows Server 2008 R2 Service Pack 1 Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Standard Windows Server 2008 R2 Web Edition Windows Server 2008 R2 Foundation Windows 7 Service Pack 1 Windows 7 Ultimate Windows 7 Enterprise Windows 7 Professional Windows 7 Home Premium Windows 7 Home Basic Windows 7 Starter

Summary

This security update resolves a vulnerability in Microsoft Windows. An attacker who successfully exploited the vulnerability could take advantage of a known invalid task to cause Task Scheduler to run a specially crafted application in the context of the System account. An attacker could then do the following:

  • Install programs
  • View, change, or delete data
  • Create new accounts that have full user rights

Introduction

Microsoft has released security bulletin MS15-037. 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 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-KB3046269-x86.msu
For all supported x64-based editions of Windows 7:
Windows6.1-KB3046269-x64.msu
Installation switches See Microsoft Knowledge Base Article 934307
Restart requirement This update does not require a restart.
Removal information To uninstall an update that is installed by WUSA, use the /Uninstall setup switch. Or, click Control Panel, click System and Security, and under Windows Update, click View installed updates, and then select from the list of updates.
File information See Microsoft Knowledge Base Article 3046269
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-KB3046269-x64.msu
For all supported Itanium-based editions of Windows Server 2008 R2:
Windows6.1-KB3046269-ia64.msu
Installation switches See Microsoft Knowledge Base Article 934307
Restart requirement This update does not require a restart.
Removal information To uninstall an update that is installed by WUSA, use the /Uninstall setup switch. Or, click Control Panel, click System and Security, and under Windows Update, click View installed updates, and then select from the list of updates.
File information See Microsoft Knowledge Base Article 3046269
Registry key verification Note A registry key does not exist to validate the presence of this update.

      

File hash information
File name SHA1 hash SHA256 hash
Windows6.1-KB3046269-ia64.msu AC68FED41565097A414BACAE196E4A29B2912E0F 8D0C0F6E45B8AAC7BE06327030201BBE6E2334CE7A346F845A491F9E77B1B25A
Windows6.1-KB3046269-x64.msu 9CDABEB9C2A859414C27C4F981D6B1334AEE0AD5 27C6571F92D7B220E0B3A7BDBBDF05B7762AF58468E77E2AA7F1F5D9278C367B
Windows6.1-KB3046269-x86.msu DAD279443DC5E3446BB2B478252C90D5F115FAF1 5119EAF82A23ABE8A834C656F5D1AC9368F7642FF12A254E96FBC62A75144A05