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                                 CERT-Renater

                     Note d'Information No. 2016/VULN199
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DATE                : 11/05/2016

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Windows version Vista, Server 2008, 7, 8.1, RT,
                             10, Server 2012 running Microsoft RPC.

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KB3155520
https://technet.microsoft.com/en-us/library/security/MS16-061
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MS16-061: Security Update for Microsoft RPC (3155520)

Document Metadata

Bulletin Number: MS16-061

Bulletin Title: Security Update for Microsoft RPC

Severity: Important

KB Article: 3155520

Version: 1.0

Published Date: May 10, 2016


Executive Summary

This security update resolves a vulnerability in Microsoft Windows. The
vulnerability could allow elevation of privilege if an unauthenticated
attacker makes malformed Remote Procedure Call (RPC) requests to an
affected host.
This security update is rated Important for all supported releases of
Microsoft Windows.


Affected Software

Windows Vista
Windows Server 2008
Windows 7
Windows Server 2008 R2
Windows 8.1
Windows Server 2012 and Windows Server 2012 R2
Windows RT
Windows 10

Vulnerability Information

RPC Network Data Representation Engine Elevation of Privilege
Vulnerability - - CVE-2016-0178

An elevation of privilege vulnerability exists in the way that Microsoft
Windows handles specially crafted Remote Procedure Call (RPC) requests.
A privilege elevation can occur when the RPC Network Data
Representation (NDR) Engine improperly frees memory. An attacker who
successfully exploited this vulnerability could execute arbitrary code
and take control of an affected system. An attacker could then install
programs; view, change, or delete data; or create new accounts with
full user rights.

An unauthenticated attacker could exploit the vulnerability by making
malformed RPC requests to an affected host. The update addresses this
vulnerability by modifying the way that Microsoft Windows handles RPC
messages.
The following table contains a link to the standard entry for each
vulnerability in the Common Vulnerabilities and Exposures list:

Vulnerability Title   CVE number   Publicly disclosed	Exploited

RPC Network Data Representation
Engine Elevation of Privilege
Vulnerability	     CVE-2016-0178	No		No

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