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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.0336
 Microsoft Security Bulletin MS16-017: Security Update for Remote Desktop
        Display Driver to Address Elevation of Privilege (3134700)
                             10 February 2016

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows 7
                   Windows 8.1
                   Windows Server 2012
                   Windows Server 2012 R2
                   Windows 10
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-0036  

Original Bulletin: 
   link: https://technet.microsoft.com/en-us/library/security/MS16-017

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Microsoft Security Bulletin MS16-017: Security Update for Remote Desktop 
Display Driver to Address Elevation of Privilege (3134700)

Bulletin Number: MS16-017

Bulletin Title: Security Update for Remote Desktop Display Driver to Address 
Elevation of Privilege

Severity: Important

KB Article: 3134700

Version: 1.0

Published Date: February 9, 2016

Executive Summary

This security update resolves a vulnerability in Microsoft Windows. The 
vulnerability could allow elevation of privilege if an authenticated attacker
logs on to the target system using RDP and sends specially crafted data over 
the connection. By default, RDP is not enabled on any Windows operating 
system. Systems that do not have RDP enabled are not at risk.

This security update is rated Important for all supported editions of Windows
7, Windows Server 2012, Window 8.1, Windows Server 2012 R2, and Windows 10.

Affected Software

Windows 7 for 32-bit Systems Service Pack 1 [1]

Windows 7 for x64-based Systems Service Pack 1 [1]

Windows 8.1 for 32-bit Systems

Windows 8.1 for x64-based Systems

Windows Server 2012

Windows Server 2012 R2

Windows 10 for 32-bit Systems[2]

Windows 10 for x64-based Systems[2]

Windows Server 2012 (Server Core installation)

Windows Server 2012 R2 (Server Core installation)

[1]Enterprise and Ultimate editions of Windows 7 are affected. All supported
editions of Windows 7 are affected if RDP 8.0 is installed on the system. See
the Update FAQ for more information.

[2]Windows 10 updates are cumulative. In addition to containing non-security 
updates, they also contain all of the security fixes for all of the Windows 
10-affected vulnerabilities shipping with the monthly security release. The 
update is available via the Windows Update Catalog.

Vulnerability Information

Remote Desktop Protocol (RDP) Elevation of Privilege Vulnerability - 
CVE-2016-0036

An elevation of privilege vulnerability exists in Remote Desktop Protocol 
(RDP) when an attacker logs on to the target system using RDP and sends 
specially crafted data over the authenticated connection. An attacker who 
successfully exploited this vulnerability could execute code with elevated 
privileges. An attacker could then install programs; view, change, or delete 
data; or create new accounts with full user rights.

To exploit this vulnerability, an attacker would first have to log on to the 
target system by using the Remote Desktop Protocol (RDP). An attacker could 
then run a specially crafted application that is designed to create the crash
condition that leads to elevated privileges. The update addresses the 
vulnerability by correcting how RDP handles objects in memory.

The following table contains links to the standard entry for each 
vulnerability in the Common Vulnerabilities and Exposures list:

Vulnerability title 			CVE number 	Publicly disclosed 	Exploited

Remote Desktop Protocol (RDP) 
 Elevation of Privilege Vulnerability 	CVE-2016-0036	No 			No

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