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Microsoft Security Bulletin MS11-088 - Important

Vulnerability in Microsoft Office IME (Chinese) Could Allow Elevation of Privilege (2652016)

Published: | Updated:

Version: 1.2

General Information

Executive Summary

This security update resolves a privately reported vulnerability in Microsoft Office IME (Chinese). The vulnerability could allow elevation of privilege if a logged-on user performed specific actions on a system where an affected version of the Microsoft Pinyin (MSPY) Input Method Editor (IME) for Simplified Chinese is installed. An attacker who successfully exploited this 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 administrative rights. Only implementations of Microsoft Pinyin IME 2010 are affected by this vulnerability. Other versions of Simplified Chinese IME and other implementations of IME are not affected.

This security update is rated Important for all supported editions of Microsoft Office 2010 where Microsoft Pinyin IME 2010 is installed. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerability by correcting the manner in which the Microsoft Office IME (Chinese) exposes configuration options not designed to run on the secure desktop. For more information about the vulnerabilities, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.

Recommendation. Customers can configure automatic updating to check online for updates from Microsoft Update by using the Microsoft Update service. Customers who have automatic updating enabled and configured to check online for updates from Microsoft Update typically will not need to take any action because this security update will be downloaded and installed automatically. Customers who have not enabled automatic updating need to check for updates from Microsoft Update and install this update manually. For information about specific configuration options in automatic updating in supported editions of Windows XP and Windows Server 2003, see Microsoft Knowledge Base Article 294871. For information about automatic updating in supported editions of Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2, see Understanding Windows automatic updating.

For administrators and enterprise installations, or end users who want to install this security update manually, Microsoft recommends that customers apply the update at the earliest opportunity using update management software, or by checking for updates using the Microsoft Update service.

See also the section, Detection and Deployment Tools and Guidance, later in this bulletin.

Known Issues. Microsoft Knowledge Base Article 2652016 documents the currently known issues that customers may experience when installing this security update. The article also documents recommended solutions for these issues. When currently known issues and recommended solutions pertain only to specific releases of this software, this article provides links to further articles.

Affected and Non-Affected Software

The following software have been tested to determine which versions or editions are affected. Other versions or editions are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, visit Microsoft Support Lifecycle.

Affected Software

Microsoft Office Suite and Other SoftwareComponentMaximum Security ImpactAggregate Severity RatingBulletins Replaced by this Update
Microsoft Office Suites and Components
Microsoft Office 2010 and Microsoft Office 2010 Service Pack 1 (32-bit editions) Microsoft Pinyin IME 2010 (32-bit version)
(KB2596511)
Elevation of PrivilegeImportantNone
Microsoft Office 2010 and Microsoft Office 2010 Service Pack 1 (64-bit editions)Microsoft Pinyin IME 2010 (64-bit version)
(KB2596511)
Elevation of PrivilegeImportantNone
Other Microsoft Office Software
Microsoft Office Pinyin SimpleFast Style 2010 and Microsoft Office Pinyin New Experience Style 2010 (32-bit version)[1]Not applicableElevation of PrivilegeImportantNone
Microsoft Office Pinyin SimpleFast Style 2010 and Microsoft Office Pinyin New Experience Style 2010 (64-bit version)[1]Not applicableElevation of PrivilegeImportantNone

[1]This version of Microsoft Office Pinyin is no longer supported. See update FAQ for details.

Non-Affected Software 

Office and Other Software
Microsoft Office 2003 Service Pack 3
Microsoft Office 2007 Service Pack 2 and Microsoft Office 2007 Service Pack 3

Frequently Asked Questions (FAQ) Related to This Security Update

Vulnerability Information

Severity Ratings and Vulnerability Identifiers

Pinyin IME Elevation Vulnerability - CVE-2011-2010

Update Information

Detection and Deployment Tools and Guidance

Security Update Deployment

Other Information

Acknowledgments

Microsoft thanks the following for working with us to help protect customers:

  • Yang Yanbei for reporting the Pinyin IME Elevation Vulnerability (CVE-2011-2010)

Microsoft Active Protections Program (MAPP)

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 Web sites provided by program partners, listed in Microsoft Active Protections Program (MAPP) Partners.

Support

  • Customers in the U.S. and Canada can receive technical support from Security Support or 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates. For more information about available support options, see Microsoft Help and Support.
  • International customers can receive support from their local Microsoft subsidiaries. There is no charge for support that is associated with security updates. For more information about how to contact Microsoft for support issues, visit the International Support Web site.

Disclaimer

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 (December 13, 2011): Bulletin published.
  • V1.1 (December 14, 2011): Added a link to Microsoft Knowledge Base Article 2652016 under Known Issues in the Executive Summary.
  • V1.2 (February 22, 2012): Clarified product support status for Microsoft Office Pinyin SimpleFast Style 2010 and Microsoft Office Pinyin New Experience Style 2010. These versions of Microsoft Office Pinyin are no longer supported. Microsoft recommends that all customers of these versions upgrade to the latest version of Microsoft Pinyin IME 2010 available through Microsoft Office 2010. See update FAQ for details.