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Microsoft Security Bulletin MS08-059 - Critical

Vulnerability in Host Integration Server RPC Service Could Allow Remote Code Execution (956695)

Published: | Updated:

Version: 1.2

General Information

Executive Summary

This security update resolves a privately reported vulnerability in Microsoft Host Integration Server. The vulnerability could allow remote code execution if an attacker sent a specially crafted Remote Procedure Call (RPC) request to an affected system. Customers who follow best practices and configure the SNA RPC service account to have fewer user rights on the system could be less impacted than customers who configure the SNA RPC service account to have administrative user rights.

This security update is rated Critical for all supported editions of Microsoft Host Integration Server 2000, Microsoft Host Integration Server 2004, and Microsoft Host Integration Server 2006. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerability by validating RPC requests. 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 immediately.

Known Issues. Microsoft Knowledge Base Article 956695 documents the currently known issues that customers may experience when installing this security update, and recommended solutions. When currently known issues and recommended solutions pertain only to specific releases of this software, the 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
Microsoft Host Integration Server 2000 Service Pack 2 (Server)Remote Code ExecutionCriticalNone
Microsoft Host Integration Server 2000 Administrator ClientRemote Code ExecutionCriticalNone
Microsoft Host Integration Server 2004 (Server)Remote Code ExecutionCriticalNone
Microsoft Host Integration Server 2004 Service Pack 1 (Server)Remote Code ExecutionCriticalNone
Microsoft Host Integration Server 2004 (Client)Remote Code ExecutionCriticalNone
Microsoft Host Integration Server 2004 Service Pack 1 (Client)Remote Code ExecutionCriticalNone
Microsoft Host Integration Server 2006 for 32-bit systemsRemote Code ExecutionCriticalNone
Microsoft Host Integration Server 2006 for x64-based systemsRemote Code ExecutionCriticalNone

Frequently Asked Questions (FAQ) Related to This Security Update

Vulnerability Information

Severity Ratings and Vulnerability Identifiers

HIS Command Execution Vulnerability - CVE- 2008-3466

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:

Support

  • Customers in the U.S. and Canada can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates.
  • 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 14, 2008): Bulletin published.
  • V1.1 (October 15, 2008): Added reference to Microsoft Knowledge Base Article 956695 to Known Issues in the Executive Summary section. Also, corrected the title of the HIS Command Execution Vulnerability (CVE- 2008-3466) in the Acknowledgments section.
  • V1.2 (October 29, 2008): Corrected the impact of the workaround that deals with disabling the SNA RPC Service.