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Microsoft Security Bulletin MS10-065 - Important

Vulnerabilities in Microsoft Internet Information Services (IIS) Could Allow Remote Code Execution (2267960)

Published:

Version: 1.0

General Information

Executive Summary

This security update resolves two privately reported vulnerabilities and one publicly disclosed vulnerability in Internet Information Services (IIS). The most severe of these vulnerabilities could allow remote code execution if a client sends a specially crafted HTTP request to the server. An attacker who successfully exploited this vulnerability could take complete control of an affected system.

This security update is rated Important for IIS 5.1, IIS 6.0, IIS 7.0, and IIS 7.5. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerabilities by modifying the way that IIS handles specially crafted HTTP requests. 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. The majority of customers have automatic updating enabled and 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 and install this update manually. For information about specific configuration options in automatic updating, see Microsoft Knowledge Base Article 294871.

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 2267960 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

Operating SystemComponentMaximum Security ImpactAggregate Severity RatingBulletins Replaced by this Update
Internet Information Services ASP
Windows XP Service Pack 3Internet Information Services 5.1
(KB2124261)
Denial of ServiceImportantNone
Windows XP Professional x64 Edition Service Pack 2Internet Information Services 6.0
(KB2124261)
Denial of ServiceImportantMS08-006
Windows Server 2003 Service Pack 2Internet Information Services 6.0
(KB2124261)
Denial of ServiceImportantMS08-006
Windows Server 2003 x64 Edition Service Pack 2Internet Information Services 6.0
(KB2124261)
Denial of ServiceImportantMS08-006
Windows Server 2003 with SP2 for Itanium-based SystemsInternet Information Services 6.0
(KB2124261)
Denial of ServiceImportantMS08-006
Windows Vista Service Pack 1 and Windows Vista Service Pack 2Internet Information Services 7.0
(KB2124261)
Denial of ServiceImportantNone
Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2Internet Information Services 7.0
(KB2124261)
Denial of ServiceImportantNone
Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2Internet Information Services 7.0*
(KB2124261)
Denial of ServiceImportantNone
Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2Internet Information Services 7.0*
(KB2124261)
Denial of ServiceImportantNone
Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2Internet Information Services 7.0
(KB2124261)
Denial of ServiceImportantNone
Windows 7 for 32-bit SystemsInternet Information Services 7.5
(KB2124261)
Denial of ServiceImportantNone
Windows 7 for x64-based SystemsInternet Information Services 7.5
(KB2124261)
Denial of ServiceImportantNone
Windows Server 2008 R2 for x64-based SystemsInternet Information Services 7.5*
(KB2124261)
Denial of ServiceImportantNone
Windows Server 2008 R2 for Itanium-based SystemsInternet Information Services 7.5
(KB2124261)
Denial of ServiceImportantNone
Internet Information Services FastCGI
Windows 7 for 32-bit SystemsInternet Information Services 7.5
(KB2271195)
Remote Code ExecutionImportantNone
Windows 7 for x64-based SystemsInternet Information Services 7.5
(KB2271195)
Remote Code ExecutionImportantNone
Windows Server 2008 R2 for x64-based SystemsInternet Information Services 7.5*
(KB2271195)
Remote Code ExecutionImportantNone
Windows Server 2008 R2 for Itanium-based SystemsInternet Information Services 7.5
(KB2271195)
Remote Code ExecutionImportantNone
Internet Information Services Authentication
Windows XP Service Pack 3Internet Information Services 5.1
(KB2290570)
Elevation of PrivilegeImportantNone

*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.

Frequently Asked Questions (FAQ) Related to This Security Update

Vulnerability Information

Severity Ratings and Vulnerability Identifiers

IIS Repeated Parameter Request Denial of Service Vulnerability - CVE-2010-1899

Request Header Buffer Overflow Vulnerability - CVE-2010-2730

Directory Authentication Bypass Vulnerability - CVE-2010-2731

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:

  • Jinsik Shim for reporting the IIS Repeated Parameter Request Denial of Service Vulnerability (CVE-2010-1899)
  • Travis Raybold of Rubicon West for reporting the Request Header Buffer Overflow Vulnerability (CVE-2010-2730)

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 (September 14, 2010): Bulletin published.