MS15-004: Description of the security update for Windows 7 and Windows Server 2008 R2 if the Remote Desktop Connection 8.1 client update is installed: January 13, 2015

Summary
This security update resolves a privately reported vulnerability in the TS WebProxy component in Windows 7 and Windows Server 2008 R2 if the Remote Desktop Connection 8.1 client update is installed. 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

More information
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:
    VersionProductMilestoneService branch
    6.1.7601.18xxxWindows 7SP1GDR
    6.1.7601.22xxxWindows 7SP1LDR
  • 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
Tswbprxy.exe6.3.9600.1755374,24011-Dec-201417:47x86
Tswbprxy.exe6.3.9600.1755374,24011-Dec-201417:47x86

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

File nameFile versionFile sizeDateTimePlatform
Tswbprxy.exe6.3.9600.1755387,04011-Dec-201417:47x64
Tswbprxy.exe6.3.9600.1755387,04011-Dec-201417:50x64
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: 3020388 - Last Review: 01/13/2015 18:27:00 - Revision: 1.0

Windows Server 2008 R2 Service Pack 1, Windows 7 Service Pack 1

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