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Microsoft Security Bulletin MS10-072 - Important

Vulnerabilities in SafeHTML Could Allow Information Disclosure (2412048)

Published: | Updated:

Version: 1.1

General Information

Executive Summary

This security update resolves one publicly disclosed vulnerability and one privately reported vulnerability in Microsoft SharePoint and Windows SharePoint Services. The vulnerabilities could allow information disclosure if an attacker submits specially crafted script to a target site using SafeHTML.

This security update is rated Important for Microsoft SharePoint Services 3.0, Microsoft SharePoint Foundation 2010, and Microsoft Office Web Apps; and all supported editions of Microsoft Office SharePoint Server 2007, and Microsoft Groove Server 2010. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The update addresses the vulnerabilities by modifying the way that SafeHTML sanitizes HTML content. For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.

Recommendation. Microsoft recommends that customers apply the update at the earliest opportunity.

Known Issues. Microsoft Knowledge Base Article 2412048 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

SoftwareMaximum Security ImpactAggregate Severity RatingBulletins Replaced by this Update
Windows SharePoint Services and Microsoft SharePoint Foundation
Microsoft Windows SharePoint Services 3.0 Service Pack 2 (32-bit versions)
(KB2345304)
Information DisclosureImportantMS10-039
Microsoft Windows SharePoint Services 3.0 Service Pack 2 (64-bit versions)
(KB2345304)
Information DisclosureImportantMS10-039
Microsoft SharePoint Foundation 2010
(KB2345322)
Information DisclosureImportantNone
Microsoft SharePoint Server and Microsoft Groove Server
Microsoft Office SharePoint Server 2007 Service Pack 2 (32-bit editions)[1]
(KB2345212)
Information DisclosureImportantMS10-039
Microsoft Office SharePoint Server 2007 Service Pack 2 (64-bit editions)[1]
(KB2345212)
Information DisclosureImportantMS10-039
Microsoft Groove Server 2010
(KB2346298)
Information DisclosureImportantNone
Microsoft Office Web Apps
Microsoft Office Web Apps
(KB2346411)
Information DisclosureImportantNone

[1]For supported editions of Microsoft Office SharePoint Server 2007, in addition to security update package KB2345212, customers also need to install the security update for Microsoft Windows SharePoint Services 3.0 (KB2345304) to be protected from the vulnerabilities described in this bulletin.

Non-Affected Software

Office and Other Software
Microsoft Windows SharePoint Services 2.0
Microsoft SharePoint Portal Server 2001 Service Pack 3
Microsoft SharePoint Portal Server 2003 Service Pack 3
Microsoft SharePoint Server 2010
Microsoft Groove 2007
Microsoft SharePoint Workspace

Frequently Asked Questions (FAQ) Related to This Security Update

Vulnerability Information

Severity Ratings and Vulnerability Identifiers

HTML Sanitization Vulnerability - CVE-2010-3243

HTML Sanitization Vulnerability - CVE-2010-3324

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:

  • Sirdarckcat of Google Inc. for reporting the HTML Sanitization Vulnerability (CVE-2010-3243)
  • Mario Heiderich for reporting the HTML Sanitization Vulnerability (CVE-2010-3324)

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 (October 12, 2010): Bulletin published.
  • V1.1 (October 13, 2010): Added a link to Microsoft Knowledge Base Article 2412048 under Known Issues in the Executive Summary.