MS15-004: Description of the security update for Windows 7 and Windows Server 2008 R2 if the Remote Desktop Connection 8.0 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 8.0 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:

• Home users:
  <https://www.microsoft.com/security/pc-security/updates.aspx&gt;Skip the details: Download the updates for your home computer or laptop from the Microsoft Update website now:
  <https://update.microsoft.com/microsoftupdate/&gt;
• IT professionals:
  https://technet.microsoft.com/library/security/MS15-004

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| SP1| GDR
  6.1.7601.22xxx| Windows 7| 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 7File name	File version	File size	Date	Time	Platform
Tswbprxy.exe	6.2.9200.17212	56,320	11-Dec-2014	17:47	x86
Tswbprxy.exe	6.2.9200.21329	56,320	11-Dec-2014	17:47	x86
For all supported x64-based versions of Windows 7 and Windows Server 2008 R2File name	File version	File size	Date	Time	Platform
—	—	—	—	—	—
Tswbprxy.exe	6.2.9200.17212	62,976	11-Dec-2014	17:47	x64
Tswbprxy.exe	6.2.9200.21329	62,976	11-Dec-2014	17:50	x64