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AUSCERT External Security Bulletin Redistribution
ESB-2012.0162
Vulnerabilities in Ancillary Function Driver Could Allow
Elevation of Privilege
15 February 2012
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AusCERT Security Bulletin Summary
---------------------------------
Product: Microsoft Windows
Publisher: Microsoft
Operating System: Windows XP
Windows Server 2003
Windows Vista
Windows Server 2008
Windows 7
Windows Server 2008 R2
Impact/Access: Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2012-0149 CVE-2012-0148
Original Bulletin:
http://technet.microsoft.com/en-us/security/bulletin/ms12-009
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Microsoft Security Bulletin MS12-009 - Important
Vulnerabilities in Ancillary Function Driver Could Allow Elevation of Privilege
(2645640)
Published Date: February 14, 2012
Version: 1.0
General Information
Executive Summary
This security update resolves two privately reported vulnerabilities in
Microsoft Windows. The vulnerabilities could allow elevation of privilege if an
attacker logs on to a user's system and runs a specially crafted application.
An attacker must have valid logon credentials and be able to log on locally to
exploit the vulnerabilities.
This security update is rated Important for all supported editions of Windows
XP (except x86-based), Windows Server 2003, Windows Vista (except x86-based),
Windows Server 2008 (except x86-based), Windows 7 (except x86-based), and
Windows Server 2008 R2. For more information, see the subsection, Affected
Software, in this section.
Affected Software
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2*
Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for x64-based Systems
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems Service Pack 1*
Windows Server 2008 R2 for Itanium-based Systems
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
*Server Core installation affected. This update applies, with the same
severity rating, to supported editions of Windows Server 2008 or Windows
Server 2008 R2 as indicated, whether or not installed using the Server Core
installation option. For more information on this installation option, see the
TechNet articles, Managing a Server Core Installation and Servicing a Server
Core Installation. Note that the Server Core installation option does not
apply to certain editions of Windows Server 2008 and Windows Server 2008 R2;
see Compare Server Core Installation Options.
Vulnerability Information
AfdPoll Elevation of Privilege Vulnerability - CVE-2012-0148
An elevation of privilege vulnerability exists where the Ancillary Function
Driver (afd.sys) improperly validates input passed from user mode to the
Windows kernel. The vulnerability could allow an attacker to run code with
elevated privileges. A local attacker who successfully exploited this
vulnerability could execute arbitrary code and take complete control of an
affected system. The attacker could then install programs; view, change, or
delete data; or create new accounts with full administrative rights.
Ancillary Function Driver Elevation of Privilege Vulnerability
- CVE-2012-0149
An elevation of privilege vulnerability exists where the Ancillary Function
Driver (afd.sys) improperly validates input passed from user mode to the
Windows kernel. The vulnerability could allow an attacker to run code with
elevated privileges. A local attacker who successfully exploited this
vulnerability could execute arbitrary code and take complete control of an
affected system. The attacker could then install programs; view, change, or
delete data; or create new accounts with full administrative rights.
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