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

Applies To
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 Datacenter Windows Server 2012 Standard Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2012 Foundation Windows 8 Enterprise Windows 8 Pro Windows 8 Windows RT 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 privately reported vulnerability in the TS WebProxy Windows component. The vulnerability 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

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 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:

    Version Product Milestone Service branch
    6.1.7601.18xxx Windows 7 and Windows Server 2008 R2 SP1 GDR
    6.1.7601.22xxx Windows 7 and Windows Server 2008 R2 SP1 LDR

  • 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 name File version File size Date Time Platform
Tswbprxy.exe 6.1.7601.18699 46,592 11-Dec-2014 17:47 x86
Tswbprxy.exe 6.1.7601.22907 46,592 11-Dec-2014 17:47 x86

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

File name File version File size Date Time Platform
Tswbprxy.exe 6.1.7601.18699 52,736 11-Dec-2014 17:47 x64
Tswbprxy.exe 6.1.7601.22907 52,736 11-Dec-2014 17:50 x64

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

File name File version File size Date Time Platform
Tswbprxy.exe 6.1.7601.18699 124,416 11-Dec-2014 17:44 IA-64
Tswbprxy.exe 6.1.7601.22907 124,416 11-Dec-2014 17:45 IA-64

      

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:

    Version Product Milestone Service branch
    6.2.920 0.16 xxx Windows 8 and Windows Server 2012 RTM GDR
    6.2.920 0.20 xxx Windows 8 and Windows Server 2012 RTM LDR

  • 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 name File version File size Date Time Platform
Tswbprxy.exe 6.2.9200.17213 56,320 11-Dec-2014 05:07 x86
Tswbprxy.exe 6.2.9200.21329 56,320 11-Dec-2014 00:39 x86

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

File name File version File size Date Time Platform
Tswbprxy.exe 6.2.9200.17213 62,976 11-Dec-2014 06:51 x64
Tswbprxy.exe 6.2.9200.21329 62,976 11-Dec-2014 00:48 x64

      

Windows 8.1 and Windows Server 2012 R2 file information

For all supported x86-based versions of Windows 8.1

File name File version File size Date Time Platform
Tswbprxy.exe 6.3.9600.17555 74,240 12-Dec-2014 01:34 x86

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

File name File version File size Date Time Platform
Tswbprxy.exe 6.3.9600.17555 87,040 12-Dec-2014 02:04 x64

      

File hash information
File name SHA1 hash SHA256 hash