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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2009.1172.2 Vulnerabilities in Microsoft Office Web Components Could Allow Remote Code Execution (957638) 28 October 2009 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Office XP Microsoft Office 2003 Microsoft Office 2000 Web Components Microsoft Office XP Web Components Microsoft Office 2003 Web Components Microsoft Internet Security and Acceleration Server 2004, 2006 Microsoft BizTalk Server 2002 Microsoft Visual Studio .NET 2003 Microsoft Office Small Business Accounting 2006 Publisher: Microsoft Operating System: Windows Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2009-2496 CVE-2009-1534 CVE-2009-1136 CVE-2009-0562 Original Bulletin: http://www.microsoft.com/technet/security/bulletin/ms09-043.mspx Comment: Oct 27 2009 - "Microsoft rereleased this bulletin to reoffer the update for Microsoft Office 2003 Service Pack 3 and Microsoft Office 2003 Web Components Service Pack 3 to fix a detection issue when Microsoft Office Access Runtime 2003 is installed. This is a detection change only; there were no changes to the binaries. Customers who have successfully updated their systems do not need to reinstall this update." Revision History: October 28 2009: Microsoft rereleased bulletin to fix a minor detection issue August 12 2009: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS09-043 - Critical Vulnerabilities in Microsoft Office Web Components Could Allow Remote Code Execution (957638) Published: August 11, 2009 Updated: October 27, 2009 Version: 2.0 General Information Executive Summary This security update resolves several privately reported vulnerabilities in Microsoft Office Web Components that could allow remote code execution if a user viewed a specially crafted Web page. An attacker who successfully exploited these vulnerabilities could gain the same user rights as the local 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. This security update is rated Critical for all supported editions of Microsoft Office XP, Microsoft Office 2003, Microsoft Office 2000 Web Components, Microsoft Office XP Web Components, Microsoft Office 2003 Web Components, Microsoft Office 2003 Web Components for the 2007 Microsoft Office system, Microsoft Internet Security and Acceleration Server 2004 Standard Edition, Microsoft Internet Security and Acceleration Server 2004 Enterprise Edition, Microsoft Internet Security and Acceleration Server 2006, Microsoft BizTalk Server 2002, Microsoft Visual Studio .NET 2003, and Microsoft Office Small Business Accounting 2006. For more information, see the subsection, Affected and Non-Affected Software, in this section. The security update addresses the vulnerabilities by correctly handling memory allocation when the ActiveX control is used in Internet Explorer, correcting validation logic for Office Web Components ActiveX control methods, and performing additional parameter validation. For more information about the vulnerabilities, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information. This security update also addresses the vulnerability first described in Microsoft Security Advisory 973472. The security updates addressed in this bulletin are not related to the vulnerabilities described in Microsoft Security Advisory 973882. Recommendation. Microsoft recommends that customers apply the update immediately. Known Issues. Microsoft Knowledge Base Article 957638 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 Software Microsoft Office XP Service Pack 3 Microsoft Office 2003 Service Pack 3 Microsoft Office 2000 Web Components Service Pack 3 Microsoft Office XP Web Components Service Pack 3 Microsoft Office 2003 Web Components Service Pack 3 Microsoft Office 2003 Web Components Service Pack 1 for the 2007 2007 Microsoft Office System** Microsoft Internet Security and Acceleration Server 2004 Standard Edition Service Pack 3* Microsoft Internet Security and Acceleration Server 2004 Enterprise Edition Service Pack 3 Microsoft Internet Security and Acceleration Server 2006 Standard Edition Service Pack 1 Microsoft Internet Security and Acceleration Server 2006 Enterprise Edition Service Pack 1 Microsoft BizTalk Server 2002 Microsoft Visual Studio .NET 2003 Service Pack 1 Microsoft Office Small Business Accounting 2006 *Microsoft ISA Server 2004 Standard Edition is delivered as a standalone product. Microsoft ISA Server 2004 Standard Edition is also delivered as a component of Windows Small Business Server 2003 Premium Edition Service Pack 1 and Windows Small Business Server 2003 R2 Premium Edition. **SQL Server 2008 and Microsoft Forefront Threat Management Gateway Medium Business Edition redistribute the affected component Office 2003 Web Components for the 2007 Microsoft Office System. The update for the Office 2003 Web Components for the 2007 Microsoft Office System component detects for SQL Server 2008 and Microsoft Forefront Threat Management Gateway Medium Business Edition and will offer the update to customers. Vulnerability Information Office Web Components Memory Allocation Vulnerability - CVE-2009-0562 A remote code execution vulnerability exists in the Office Web Components ActiveX Control. An attacker could exploit the vulnerability by constructing a specially crafted Web page. When a user views the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. Office Web Components Heap Corruption Vulnerability - CVE-2009-2496 A remote code execution vulnerability exists in the Office Web Components ActiveX Control. An attacker could exploit the vulnerability by constructing a specially crafted Web page. When a user views the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. Office Web Components HTML Script Vulnerability - CVE-2009-1136 A remote code execution vulnerability exists in the Office Web Components ActiveX Control. An attacker could exploit the vulnerability by constructing a specially crafted Web page. When a user views the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. Office Web Components Buffer Overflow Vulnerability - CVE-2009-1534 A remote code execution vulnerability exists in the Office Web Components ActiveX Control. An attacker could exploit the vulnerability by constructing a specially crafted Web page. When a user views the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iD8DBQFK57EGNVH5XJJInbgRAmCeAJwNFoOhHiXRjjKSIzFoXRd8J1wzDACfU5AU 4Irt15/rFOKG96e35kOasbA= =gCZK -----END PGP SIGNATURE-----