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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.1499
         Microsoft Security Bulletin MS16-076: Security Update for
                            Netlogon (3167691)
                               15 June 2016

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

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows Server 2008
                   Windows Server 2008 R2
                   Windows Server 2012
                   Windows Server 2012 R2
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-3228  

Original Bulletin: 
   https://technet.microsoft.com/en-us/library/security/MS16-076

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Microsoft Security Bulletin MS16-076: Security Update for Netlogon (3167691)

Executive Summary

This security update resolves a vulnerability in Microsoft Windows. The 
vulnerability could allow remote code execution if an attacker with access to
a domain controller (DC) on a target network runs a specially crafted 
application to establish a secure channel to the DC as a replica domain 
controller.

This security update is rated Important for all supported editions of Windows
Server 2008, Windows Server 2008 R2, Windows Server 2012, and Windows Server 
2012 R2.

Affected Software

Windows Server 2008

Windows Server 2008 R2

Windows Server 2012

Windows Server 2012 R2

Windows Server 2012 (Server Core installation)

Windows Server 2012 R2 (Server Core installation)

Vulnerability Information

Windows Netlogon Memory Corruption Remote Code Execution- CVE-2016-3228

This security update resolves a vulnerability in Microsoft Windows. The 
vulnerability could allow remote code execution when Windows improperly 
handles objects in memory. An attacker who successfully exploited this 
vulnerability could gain the same user rights as the current user. To exploit
the vulnerability, a domain-authenticated attacker could make a specially 
crafted NetLogon request to a domain controller. Users whose accounts are 
configured to have fewer user rights on the system could be less impacted than
those who operate with administrative user rights. This update corrects how 
Windows handles objects in memory to prevent corruption.

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

Windows Netlogon Memory Corruption Remote Code Execution Vulnerability 	CVE-2016-3228 	No 			No

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