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AUSCERT External Security Bulletin Redistribution
ESB-2016.0333
Microsoft Security Bulletin MS16-014: Security Update for Microsoft Windows
to Address Remote Code Execution (3134228)
10 February 2016
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AusCERT Security Bulletin Summary
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Product: Microsoft Windows
Publisher: Microsoft
Operating System: Windows Vista
Windows Server 2008
Windows Server 2008 R2
Windows 7
Windows 8.1
Windows Server 2012
Windows Server 2012 R2
Windows 10
Impact/Access: Administrator Compromise -- Existing Account
Access Privileged Data -- Existing Account
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-0049 CVE-2016-0044 CVE-2016-0042
CVE-2016-0041 CVE-2016-0040
Reference: ESB-2016.0328
Original Bulletin:
https://technet.microsoft.com/en-us/library/security/MS16-014
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Microsoft Security Bulletin MS16-014: Security Update for Microsoft Windows to
Address Remote Code Execution (3134228)
Bulletin Number: MS16-014
Bulletin Title: Security Update for Microsoft Windows to Address Remote Code
Execution
Severity: Important
KB Article: 3134228
Version: 1.0
Published Date: February 9, 2016
Executive Summary
This security update resolves vulnerabilities in Microsoft Windows. The most
severe of the vulnerabilities could allow remote code execution if an attacker
is able to log on to a target system and run a specially crafted application.
This security update is rated Important for all supported releases of
Microsoft Windows.
Affected Software
Windows Vista Service Pack 2
Windows Server 2008 for 32-bit Systems 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 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Windows 8.1 for 32-bit Systems
Windows 8.1 for x64-based Systems
Windows Server 2012
Windows Server 2012 R2
Windows RT 8.1[1]
Windows 10 for 32-bit Systems[2]
Windows 10 for x64-based Systems[2]
Windows 10 Version 1511 for 32-bit Systems[2]
Windows 10 Version 1511 for x64-based Systems[2]
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core
installation)
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core
installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core
installation)
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2 (Server Core installation)
[1]This update is only available via Windows Update.
[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
Windows Elevation of Privilege Vulnerability - CVE-2016-0040
An elevation of privilege vulnerability exists when the Windows kernel
improperly handles objects in memory. An attacker who successfully exploited
the vulnerability could run arbitrary code in kernel mode. An attacker could
then install programs; view, change, or delete data; or create new accounts
with full user rights.
To exploit the vulnerability, an attacker would first have to log on to the
system. An attacker could then run a specially crafted application that could
exploit the vulnerabilities and take control over an affected system. The
update addresses the vulnerabilities by correcting how the Windows kernel
handles objects in memory.
Vulnerability Title CVE number Publicly disclosed Exploited
Windows Elevation of Privilege Vulnerability CVE-2016-0040 Yes No
Multiple DLL Loading Remote Code Execution Vulnerabilities
Multiple remote code execution vulnerabilities exist when Windows improperly
validates input before loading dynamic link library (DLL) files. An attacker
who successfully exploited these vulnerabilities could 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. Users whose
accounts are configured to have fewer user rights on the system could be less
impacted than users who operate with administrative user rights.
To exploit the vulnerabilities, an attacker would first have to log on to the
target system and then run a specially crafted application. The updates
address the vulnerabilities by correcting how Windows validates input before
loading DLL files.
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
DLL Loading Remote Code Execution Vulnerability CVE-2016-0041 No No
Windows DLL Loading Remote Code Execution Vulnerability CVE-2016-0042 No No
Windows DLL Loading Denial of Service Vulnerability - CVE-2016-0044
A denial of service vulnerability exists in Windows when Microsoft Sync
Framework processes specially crafted input that uses the change batch
structure. An attacker who successfully exploited the vulnerability could
cause the target SyncShareSvc service to stop responding. Note that the denial
of service would not allow an attacker to execute code or to elevate their
user rights. However, it could prevent authenticated users from using the
SyncShareSvc service.
To exploit the vulnerability an authenticated attacker must send a
specially-crafted network packet to a server running the SyncShareSvc service.
The update addresses the vulnerability by correcting how Microsoft Sync
Framework validates input.
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 DLL Loading Denial of Service Vulnerability CVE-2016-0044 No No
Windows Kerberos Security Feature Bypass - CVE-2016-0049
A security feature bypass exists in Windows when Kerberos fails to check the
password change of a user signing into a workstation. An attacker could bypass
Kerberos authentication on a target machine and decrypt drives protected by
BitLocker.
An attacker could bypass Kerberos authentication by connecting a workstation
to a malicious Kerberos Key Distribution Center (KDC). The update addresses
the bypass by adding an additional authentication check.
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 Kerberos Security Feature Bypass Vulnerability CVE-2016-0049 No No
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