Microsoft Security Bulletin Summary for April 2013
Article
Published: April 09, 2013 | Updated: June 25, 2013
Version: 4.0
This bulletin summary lists security bulletins released for April 2013.
With the release of the security bulletins for April 2013, this bulletin summary replaces the bulletin advance notification originally issued April 4, 2013. For more information about the bulletin advance notification service, see Microsoft Security Bulletin Advance Notification.
Microsoft is hosting a webcast to address customer questions on these bulletins on April 10, 2013, at 11:00 AM Pacific Time (US & Canada). Register now for the April Security Bulletin Webcast. After this date, this webcast is available on-demand.
Microsoft also provides information to help customers prioritize monthly security updates with any non-security updates that are being released on the same day as the monthly security updates. Please see the section, Other Information.
Bulletin Information
Executive Summaries
The following table summarizes the security bulletins for this month in order of severity.
For details on affected software, see the next section, Affected Software and Download Locations.
Cumulative Security Update for Internet Explorer (2817183) \ \ This security update resolves two privately reported vulnerabilities in Internet Explorer. These vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited these vulnerabilities could gain the same user rights as the current user. 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.
Vulnerability in Remote Desktop Client Could Allow Remote Code Execution (2828223) \ \ This security update resolves a privately reported vulnerability in Windows Remote Desktop Client. The vulnerability could allow remote code execution if a user views a specially crafted webpage. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. 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.
Vulnerability in SharePoint Could Allow Information Disclosure (2827663) \ \ This security update resolves a publicly disclosed vulnerability in Microsoft SharePoint Server. The vulnerability could allow information disclosure if an attacker determined the address or location of a specific SharePoint list and gained access to the SharePoint site where the list is maintained. The attacker would need to be able to satisfy the SharePoint site's authentication requests to exploit this vulnerability.
Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege (2813170) \ \ This security update resolves two privately reported vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logs on to the system and runs a specially crafted application. An attacker must have valid logon credentials and be able to log on locally to exploit these vulnerabilities.
Vulnerability in Active Directory Could Lead to Denial of Service (2830914) \ \ This security update resolves a privately reported vulnerability in Active Directory. The vulnerability could allow denial of service if an attacker sends a specially crafted query to the Lightweight Directory Access Protocol (LDAP) service.
Vulnerability in Windows Client/Server Run-time Subsystem (CSRSS) Could Allow Elevation of Privilege (2820917) \ \ This security update resolves a privately reported vulnerability in all supported editions of Windows XP, Windows Vista, Windows Server 2003, and Windows Server 2008. The vulnerability could allow elevation of privilege if an attacker logs on to a system and runs a specially crafted application. An attacker must have valid logon credentials and be able to log on locally to exploit this vulnerability.
Vulnerability in Microsoft Antimalware Client Could Allow Elevation of Privilege (2823482) \ \ This security update resolves a privately reported vulnerability in the Microsoft Antimalware Client. The vulnerability could allow elevation of privilege due to the pathnames used by the Microsoft Antimalware Client. An 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 user rights. An attacker must have valid logon credentials to exploit this vulnerability. The vulnerability could not be exploited by anonymous users.
Vulnerability in HTML Sanitization Component Could Allow Elevation of Privilege (2821818) \ \ This security update resolves a privately reported vulnerability in Microsoft Office. The vulnerability could allow elevation of privilege if an attacker sends specially crafted content to a user.
Vulnerabilities in Kernel-Mode Driver Could Allow Elevation Of Privilege (2829996) \ \ This security update resolves three privately reported vulnerabilities and one publicly disclosed vulnerability in Microsoft Windows. The most severe of these vulnerabilities could allow elevation of privilege if an attacker logs on to the system and runs a specially crafted application. An attacker must have valid logon credentials and be able to log on locally to exploit the most severe vulnerabilities.
The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of bulletin ID then CVE ID. Only vulnerabilities that have a severity rating of Critical or Important in the bulletins are included.
How do I use this table?
Use this table to learn about the likelihood of code execution and denial of service exploits within 30 days of security bulletin release, for each of the security updates that you may need to install. Review each of the assessments below, in accordance with your specific configuration, to prioritize your deployment of this month's updates. For more information about what these ratings mean, and how they are determined, please see Microsoft Exploitability Index.
In the columns below, "Latest Software Release" refers to the subject software, and "Older Software Releases" refers to all older, supported releases of the subject software, as listed in the "Affected Software" and "Non-Affected Software" tables in the bulletin.
Bulletin ID
Vulnerability Title
CVE ID
Exploitability Assessment for Latest Software Release
Exploitability Assessment for Older Software Release
On Windows Server 2003 and Windows XP Professional x64 Edition, this is an elevation of privilege vulnerability.\ \ On Windows XP, Windows Vista, and Windows Server 2008, this is a denial of service vulnerability.
The following tables list the bulletins in order of major software category and severity.
How do I use these tables?
Use these tables to learn about the security updates that you may need to install. You should review each software program or component listed to see whether any security updates pertain to your installation. If a software program or component is listed, then the available software update is hyperlinked and the severity rating of the software update is also listed.
Note You may have to install several security updates for a single vulnerability. Review the whole column for each bulletin identifier that is listed to verify the updates that you have to install, based on the programs or components that you have installed on your system.
[1]Severity ratings do not apply to this update for the specified software because the known attack vectors for the vulnerability are blocked.
See also other software categories under this section, Affected Software and Download Locations, for more update files under the same bulletin identifier. This bulletin spans more than one software category.
[1]This update requires prior installation of the Project Server 2013 cumulative update (2768001). For more information about the update, including download links, see Microsoft Knowledge Base Article 2768001.
Notes for MS13-035
[1]For supported editions of Microsoft SharePoint Server 2010, in addition to the security update packages for Microsoft SharePoint 2010 (2687421 and 2760408), customers also need to install the security update for Microsoft SharePoint Foundation 2010 (2810059) to be protected from the vulnerabilities described in this bulletin.
See also other software categories under this section, Affected Software and Download Locations, for more update files under the same bulletin identifier. This bulletin spans more than one software category.
See also other software categories under this section, Affected Software and Download Locations, for more update files under the same bulletin identifier. This bulletin spans more than one software category.
Manage the software and security updates you need to deploy to the servers, desktop, and mobile computers in your organization. For more information see the TechNet Update Management Center. The TechNet Security TechCenter provides additional information about security in Microsoft products. Consumers can visit Microsoft Safety & Security Center, where this information is also available by clicking "Security Updates."
Security updates are available from Microsoft Update and Windows Update. Security updates are also available at the Microsoft Download Center. You can find them most easily by doing a keyword search for "security update."
For customers of Microsoft Office for Mac, Microsoft AutoUpdate for Mac can help keep your Microsoft software up to date. For more information about using Microsoft AutoUpdate for Mac, see Check for software updates automatically.
Finally, security updates can be downloaded from the Microsoft Update Catalog. The Microsoft Update Catalog provides a searchable catalog of content made available through Windows Update and Microsoft Update, including security updates, drivers and service packs. By searching using the security bulletin number (such as, "MS13-001"), you can add all of the applicable updates to your basket (including different languages for an update), and download to the folder of your choosing. For more information about the Microsoft Update Catalog, see the Microsoft Update Catalog FAQ.
Detection and Deployment Guidance
Microsoft provides detection and deployment guidance for security updates. This guidance contains recommendations and information that can help IT professionals understand how to use various tools for detection and deployment of security updates. For more information, see Microsoft Knowledge Base Article 961747.
Microsoft Baseline Security Analyzer
The Microsoft Baseline Security Analyzer (MBSA) allows administrators to scan local and remote systems for missing security updates as well as common security misconfigurations. For more information about MBSA, see Microsoft Baseline Security Analyzer.
Windows Server Update Services
By using Windows Server Update Services (WSUS), administrators can quickly and reliably deploy the latest critical updates and security updates for Microsoft Windows 2000 operating systems and later, Office XP and later, Exchange Server 2003, and SQL Server 2000 to Microsoft Windows 2000 and later operating systems.
For more information about how to deploy this security update using Windows Server Update Services, visit Windows Server Update Services.
SystemCenter Configuration Manager
System Center Configuration Manager Software Update Management simplifies the complex task of delivering and managing updates to IT systems across the enterprise. With System Center Configuration Manager, IT administrators can deliver updates of Microsoft products to a variety of devices including desktops, laptops, servers, and mobile devices.
The automated vulnerability assessment in System Center Configuration Manager discovers needs for updates and reports on recommended actions. The Software Update Management in System Center Configuration Manager is built on Microsoft Windows Software Update Services (WSUS), a time-tested update infrastructure that is familiar to IT administrators worldwide. For more information about System Center Configuration Manager, see System Center Technical Resources.
Systems Management Server 2003
Microsoft Systems Management Server (SMS) delivers a highly-configurable enterprise solution for managing updates. By using SMS, administrators can identify Windows-based systems that require security updates and to perform controlled deployment of these updates throughout the enterprise with minimal disruption to end users.
Note System Management Server 2003 is out of mainstream support as of January 12, 2010. For more information on product lifecycles, visit Microsoft Support Lifecycle. The next release of SMS, System Center Configuration Manager, is now available; see the earlier section, System Center Configuration Manager.
Note SMS uses the Microsoft Baseline Security Analyzer to provide broad support for security bulletin update detection and deployment. Some software updates may not be detected by these tools. Administrators can use the inventory capabilities of SMS in these cases to target updates to specific systems. For more information about this procedure, see Deploying Software Updates Using the SMS Software Distribution Feature. Some security updates require administrative rights following a restart of the system. Administrators can use the Elevated Rights Deployment Tool (available in the SMS 2003 Administration Feature Pack) to install these updates.
Update Compatibility Evaluator and Application Compatibility Toolkit
Updates often write to the same files and registry settings required for your applications to run. This can trigger incompatibilities and increase the time it takes to deploy security updates. You can streamline testing and validating Windows updates against installed applications with the Update Compatibility Evaluator components included with Application Compatibility Toolkit.
The Application Compatibility Toolkit (ACT) contains the necessary tools and documentation to evaluate and mitigate application compatibility issues before deploying Windows Vista, a Windows Update, a Microsoft Security Update, or a new version of Windows Internet Explorer in your environment.
Other Information
Microsoft Windows Malicious Software Removal Tool
For the bulletin release that occurs on the second Tuesday of each month, Microsoft has released an updated version of the Microsoft Windows Malicious Software Removal Tool on Windows Update, Microsoft Update, Windows Server Update Services, and the Download Center. No updated version of the Microsoft Windows Malicious Software Removal Tool is available for out-of-band security bulletin releases.
Non-Security Updates on MU, WU, and WSUS
For information about non-security releases on Windows Update and Microsoft Update, please see:
Microsoft Knowledge Base Article 894199: Description of Software Update Services and Windows Server Update Services changes in content. Includes all Windows content.
To improve security protections for customers, Microsoft provides vulnerability information to major security software providers in advance of each monthly security update release. Security software providers can then use this vulnerability information to provide updated protections to customers via their security software or devices, such as antivirus, network-based intrusion detection systems, or host-based intrusion prevention systems. To determine whether active protections are available from security software providers, please visit the active protections websites provided by program partners listed in Microsoft Active Protections Program (MAPP) Partners.
Updates for other security issues are available from the following locations:
Security updates are available from Microsoft Download Center. You can find them most easily by doing a keyword search for "security update".
Updates for consumer platforms are available from Microsoft Update.
You can obtain the security updates offered this month on Windows Update, from Download Center on Security and Critical Releases ISO CD Image files. For more information, see Microsoft Knowledge Base Article 913086.
IT Pro Security Community
Learn to improve security and optimize your IT infrastructure, and participate with other IT Pros on security topics in IT Pro Security Community.
Acknowledgments
Microsoft thanks the following for working with us to help protect customers:
MS13-028
Ivan Fratric and Ben Hawkes of Google Security Team for reporting the Internet Explorer Use After Free Vulnerability (CVE-2013-1303)
Ivan Fratric and Ben Hawkes of Google Security Team for reporting the Internet Explorer Use After Free Vulnerability (CVE-2013-1304)
An anonymous researcher, working with HP'sZero Day Initiative, for reporting the Internet Explorer Use After Free Vulnerability (CVE-2013-1338)
An anonymous researcher for working with us on defense-in-depth changes included in this bulletin
MS13-029
c1d2d9acc746ae45eeb477b97fa74688, working with HP'sZero Day Initiative, for reporting the RDP ActiveX Control Remote Code Execution Vulnerability (CVE-2013-1296)
The affected software listed have been tested to determine which versions are affected. Other versions are past their support life cycle. To determine the support life cycle for your software version, visit Microsoft Support Lifecycle.
The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
Revisions
V1.0 (April 9, 2013): Bulletin Summary published.
V1.1 (April 10, 2013): For MS13-029, corrected the version number for Remote Desktop Connection Client on Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1 from 7.0 to 7.1. This is an informational change only. There were no changes to security update files.
V2.0 (April 11, 2013): For MS13-036, removed the links to security update 2823324 due to a known installation issue. See bulletin for details.
V3.0 (April 23, 2013): For MS13-036, replaced the 2823324 update with the 2840149 update for NTFS.sys when installed on supported editions of Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2. See bulletin for details.
V3.1 (April 24, 2013): For MS13-028, added an Exploitability Assessment in the Exploitability Index for CVE-2013-1338. This is an informational change only.
V4.0 (June 25, 2013): For MS13-029, revised bulletin to rerelease the 2813347 update for Remote Desktop Connection 7.0 Client on Windows XP Service Pack 3. See bulletin for details.
As an Information Security Administrator, you plan and implement information security of sensitive data by using Microsoft Purview and related services. You’re responsible for mitigating risks by protecting data inside collaboration environments that are managed by Microsoft 365 from internal and external threats and protecting data used by AI services. You also implement information protection, data loss prevention, retention, insider risk management, and manage information security alerts and activities.