__________________________________________________________ The U.S. Department of Energy Cyber Incident Response Capability __ __ __ ___ __ __ ___ ___ | \ | | |_ __ / | |__| / |__/ |__| |__ \___ __|__ | \ \___ __________________________________________________________ INFORMATION BULLETIN Vulnerabilities in Microsoft Excel [Microsoft Security Bulletin (MS08-057)] October 15, 2008 14:00 GMT Number T-003 [REVISED 29 Oct 2008] [REVISED 30 Oct 2008] ______________________________________________________________________________ PROBLEM: Several remote code execution vulnerabilities exist in the way Microsoft Excel: 1) processes a VBA Performance Cache; 2) an improper memory allocationwhenloading Excel objects; and 3) a formula parsing vulnerability when parsing Microsoft Excel documents containing a specially crafted formula embedded inside a cell. PLATFORM: Excel 2000, 2002 (all editions) Excel 2003 and Excel Viewer 2003 (all editions) Excel 2007, Excel Viewer, and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats (all editions) Office SharePoint Server 2007 (all editions) Office 2004, 2008 for Mac Open XML File Format Converter for Mac DAMAGE: Remote code execution. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. An attacker who successfully exploited this ASSESSMENT: vulnerability could take complete control of an affected system. ______________________________________________________________________________ CVSS 2 BASE SCORE: 5.1 TEMPORAL SCORE: 4.0 VECTOR: (AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C) ______________________________________________________________________________ LINKS: DOE-CIRC BULLETIN: http://doecirc.energy.gov/ciac/bulletins/t-003.shtml ORIGINAL BULLETIN: http://www.microsoft.com/technet/security/Bulletin/MS08-057.mspx CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2008-3477 CVE-2008-3471 CVE-2008-4019 ______________________________________________________________________________ REVISION HISTORY: 10/29/2008 - revised T-003 to reflect changes Microsoft has made in MS08-057 where they changed the Systems Management Server detection and deployment summary to "yes" for all supported versions of Microsoft Office Excel Viewer 2003 in the Detection and Deployment Tools and Guidance section. This is an informational change only. There were no changes to the security update binaries or detection logic. 10/30/2008 - revised T-003 to reflect changes Microsoft has made in MS08-057 where they added an entry to the FAQ section to explain any additional security features included in this update for Microsoft Office 2003 Service Pack 2; added missing entries for Excel 2003 Service Pack 3 to the Detection and Deployment Tools and Guidance section; and corrected references to Windows Installer Redistributable in the Security Update Deployment section. [***** Start Microsoft Security Bulletin (MS08-057) *****] Microsoft Security Bulletin MS08-057 – Critical Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (956416) Published: October 14, 2008 | Updated: October 29, 2008 Version: 1.2 General Information Executive Summary This security update resolves three privately reported vulnerabilities in Microsoft Office Excel that could allow remote code execution if a user opens a specially crafted Excel file. An attacker who successfully exploited these vulnerabilities could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. 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 Excel 2000 and rated Important for all supported editions of Microsoft Office Excel 2002, Microsoft Office Excel 2003, Microsoft Office Excel Viewer 2003, Microsoft Office Excel 2007, Microsoft Office Compatibility Pack , Microsoft Office Excel Viewer, and Microsoft Office SharePoint Server 2007. For more information, see the subsection, Affected and Non-Affected Software, in this section. This security update addresses these vulnerabilities by modifying the way that Microsoft Excel performs validations when opening Excel files. 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. None Top of section 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 Office Suite and Other Software Component Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by this Update Microsoft Office 2000 Service Pack 3 Excel 2000 Service Pack 3 (KB955461) Remote Code Execution Critical MS08-043 Microsoft Office XP Service Pack 3 Excel 2002 Service Pack 3 (KB955464) Remote Code Execution Important MS08-043 Microsoft Office 2003 Service Pack 2 Excel 2003 Service Pack 2 (KB955466) Remote Code Execution Important MS08-043 Microsoft Office 2003 Service Pack 3 Excel 2003 Service Pack 3 (KB955466) Remote Code Execution Important MS08-043 2007 Microsoft Office System Excel 2007 (KB955470) Remote Code Execution Important MS08-043 2007 Microsoft Office System Service Pack 1 Excel 2007 Service Pack 1 (KB955470) Remote Code Execution Important MS08-043 Microsoft Office Excel Viewer 2003 (KB955468) Remote Code Execution Important MS08-043 Microsoft Office Excel Viewer 2003 Service Pack 3 (KB955468) Remote Code Execution Important MS08-043 Microsoft Office Excel Viewer (KB955935) Remote Code Execution Important MS08-043 Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats (KB955936) Remote Code Execution Important MS08-043 Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1 (KB955936) Remote Code Execution Important MS08-043 Microsoft Office SharePoint Server 2007* (KB955937) Remote Code Execution Important MS08-043 Microsoft Office SharePoint Server 2007 Service Pack 1* (KB955937) Remote Code Execution Important MS08-043 Microsoft Office SharePoint Server 2007 x64 Edition* (KB955937) Remote Code Execution Important MS08-043 Microsoft Office SharePoint Server 2007 x64 Edition Service Pack 1* (KB955937) Remote Code Execution Important MS08-043 Microsoft Office 2004 for Mac (KB958312) Remote Code Execution Important MS08-043 Microsoft Office 2008 for Mac (KB958267) Remote Code Execution Important MS08-043 Open XML File Format Converter for Mac (KB958304) Remote Code Execution Important None *This update applies to servers that have Excel Services installed, such as the default configuration of Microsoft Office SharePoint Server 2007 Enterprise and Microsoft Office SharePoint Server 2007 For Internet Sites. Microsoft Office SharePoint Server 2007 Standard does not include Excel Services. Non-Affected Software Office and Other Software Microsoft Works 8.0 Microsoft Works 8.5 Microsoft Works 9.0 Microsoft Works Suite 2005 Microsoft Works Suite 2006 Microsoft Office SharePoint Server 2003 Service Pack 3 Vulnerability Information Severity Ratings and Vulnerability Identifiers Vulnerability Severity Rating and Maximum Security Impact by Affected Software Affected Software Calendar Object Validation Vulnerability - CVE-2008-3477 File Format Parsing Vulnerability - CVE-2008-3471 Formula Parsing Vulnerability - CVE-2008-4019 Aggregate Severity Rating Excel 2000 Service Pack 3 Critical Remote Code Execution Critical Remote Code Execution Critical Remote Code Execution Critical Excel 2002 Service Pack 3 Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Excel 2003 Service Pack 2 Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Excel 2003 Service Pack 3 Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Excel 2007 None Important Remote Code Execution Important Remote Code Execution Important Excel 2007 Service Pack 1 None Important Remote Code Execution Important Remote Code Execution Important Microsoft Office Excel Viewer 2003 None Important Remote Code Execution Important Remote Code Execution Important Microsoft Office Excel Viewer 2003 Service Pack 3 None Important Remote Code Execution Important Remote Code Execution Important Microsoft Office Excel Viewer None Important Remote Code Execution Important Remote Code Execution Important Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats None Important Remote Code Execution Important Remote Code Execution Important Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1 None Important Remote Code Execution Important Remote Code Execution Important Microsoft Office SharePoint Server 2007 None None Important Remote Code Execution Important Microsoft Office SharePoint Server 2007 Service Pack 1 None None Important Remote Code Execution Important Microsoft Office SharePoint Server 2007 x64 Edition None None Important Remote Code Execution Important Microsoft Office SharePoint Server 2007 x64 Edition Service Pack 1 None None Important Remote Code Execution Important Microsoft Office 2004 for Mac None Important Remote Code Execution Important Remote Code Execution Important Microsoft Office 2008 for Mac None Important Remote Code Execution Important Remote Code Execution Important Open XML File Format Converter for Mac None Important Remote Code Execution Important Remote Code Execution Important Top of section Calendar Object Validation Vulnerability - CVE-2008-3477 A remote code execution vulnerability exists in the way Excel processes a VBA Performance Cache. The vulnerability could allow remote code execution if a user opens a specially crafted Excel file in a VBA Performance Cache. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2008-3477. File Format Parsing Vulnerability - CVE-2008-3471 A remote code execution vulnerability exists in Microsoft Excel as a result of improper memory allocation when loading Excel objects. The vulnerability could allow remote code execution if a user opens a specially crafted Excel file that includes a malformed object. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2008-3471. Formula Parsing Vulnerability - CVE-2008-4019 The specific flaw exists when parsing Microsoft Excel documents containing a specially crafted formula embedded inside a cell. This can result in a remote compromise of the system under the context of the currently logged in user. To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2008-4019. Update Information Detection and Deployment Tools and Guidance Manage the software and security updates you need to deploy to the servers, desktop, and mobile systems in your organization. For more information see the TechNet Update Management Center. The Microsoft TechNet Security Web site provides additional information about security in Microsoft products. Security updates are available from Microsoft Update, Windows Update, and Office Update. Security updates are also available from the Microsoft Download Center. You can find them most easily by doing a keyword search for "security update." Finally, security updates can be downloaded from the Microsoft Update Catalog. The Microsoft Update Catalog provides a searchable catalog of content made available through Windows Update and Microsoft Update, including security updates, drivers and service packs. By searching using the security bulletin number (such as, “MS07-036”), you can add all of the applicable updates to your basket (including different languages for an update), and download to the folder of your choosing. For more information about the Microsoft Update Catalog, see the Microsoft Update Catalog FAQ. Detection and Deployment Guidance Microsoft has provided detection and deployment guidance for this month’s security updates. This guidance will also help IT professionals understand how they can use various tools to help deploy the security update, such as Windows Update, Microsoft Update, Office Update, the Microsoft Baseline Security Analyzer (MBSA), the Office Detection Tool, Microsoft Systems Management Server (SMS), and the Extended Security Update Inventory Tool. For more information, see Microsoft Knowledge Base Article 910723. Microsoft Baseline Security Analyzer Microsoft Baseline Security Analyzer (MBSA) allows administrators to scan local and remote systems for missing security updates as well as common security misconfigurations. For more information about MBSA, visit Microsoft Baseline Security Analyzer. The following table provides the MBSA detection summary for this security update. Software MBSA 2.1 Excel 2000 Service Pack 3 No Excel 2002 Service Pack 3 Yes Excel 2003 Service Pack 2 Yes Excel 2007 Yes Excel 2007 Service Pack 1 Yes Microsoft Office Excel Viewer 2003 Yes Microsoft Office Excel Viewer 2003 Service Pack 3 Yes Microsoft Office Excel Viewer Yes Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Yes Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1 Yes Microsoft Office SharePoint Server 2007 Yes Microsoft Office SharePoint Server 2007 Service Pack 1 Yes Microsoft Office SharePoint Server 2007 x64 Edition Yes Microsoft Office SharePoint Server 2007 x64 Edition Service Pack 1 Yes For more information about MBSA 2.1, see MBSA 2.1 Frequently Asked Questions. Note For customers using legacy software not supported by MBSA 2.0.1, Microsoft Update, and Windows Server Update Services: please visit Microsoft Baseline Security Analyzer and reference the Legacy Product Support section on how to create comprehensive security update detection with legacy tools. Windows Server Update Services By using Windows Server Update Services (WSUS), administrators can deploy the latest critical updates and security updates for Windows 2000 operating systems and later, Office XP and later, Exchange Server 2003, and SQL Server 2000. For more information about how to deploy this security update using Windows Server Update Services, visit the Windows Server Update Services Web site. Systems Management Server The following table provides the SMS detection and deployment summary for this security update. Software SMS 2.0 SMS 2003 with SUSFP SMS 2003 with ITMU Configuration Manager 2007 Excel 2000 Service Pack 3 Yes Yes No No Excel 2002 Service Pack 3 Yes Yes Yes Yes Excel 2003 Service Pack 2 Yes Yes Yes Yes Excel 2007 No No Yes Yes Excel 2007 Service Pack 1 No No Yes Yes Microsoft Office Excel Viewer 2003 Yes Yes No No Microsoft Office Excel Viewer 2003 Service Pack 3 Yes Yes No No Microsoft Office Excel Viewer No No Yes Yes Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats No No Yes Yes Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1 No No Yes Yes Microsoft Office SharePoint Server 2007 No No Yes. See Note for Microsoft Office SharePoint Server 2007 below Yes. See Note for Microsoft Office SharePoint Server 2007 below Microsoft Office SharePoint Server 2007 Service Pack 1 No No Yes. See Note for Microsoft Office SharePoint Server 2007 below Yes. See Note for Microsoft Office SharePoint Server 2007 below Microsoft Office SharePoint Server 2007 x64 Edition No No Yes. See Note for Microsoft Office SharePoint Server 2007 below Yes. See Note for Microsoft Office SharePoint Server 2007 below Microsoft Office SharePoint Server 2007 x64 Edition Service Pack 1 No No Yes. See Note for Microsoft Office SharePoint Server 2007 below Yes. See Note for Microsoft Office SharePoint Server 2007 below For SMS 2.0 and SMS 2003, the SMS SUS Feature Pack (SUSFP), which includes the Security Update Inventory Tool (SUIT), can be used by SMS to detect security updates. See also Downloads for Systems Management Server 2.0. For SMS 2003, the SMS 2003 Inventory Tool for Microsoft Updates (ITMU) can be used by SMS to detect security updates that are offered by Microsoft Update and that are supported by Windows Server Update Services. For more information about the SMS 2003 ITMU, see SMS 2003 Inventory Tool for Microsoft Updates. SMS 2003 can also use the Microsoft Office Inventory Tool to detect required updates for Microsoft Office applications. For more information about the Office Inventory Tool and other scanning tools, see SMS 2003 Software Update Scanning Tools. See also Downloads for Systems Management Server 2003. System Center Configuration Manager 2007 uses WSUS 3.0 for detection of updates. For more information about Configuration Manager 2007 Software Update Management, visit System Center Configuration Manager 2007. For more information about SMS, visit the SMS Web site. For more detailed information, see Microsoft Knowledge Base Article 910723: Summary list of monthly detection and deployment guidance articles. Note for Microsoft Office SharePoint Server 2007 The detection table described above is based on single-server Microsoft Office SharePoint Server 2007 deployments. The detection tools do not detect the applicability of the update on systems configured as part of a multiple-system SharePoint server farms. For more information about deploying updates on both stand-alone and multi server configurations, see Deploy software updates for Office SharePoint Server 2007. Note If you have used an Administrative Installation Point (AIP) for deploying Office 2000, Office XP or Office 2003, you may not be able to deploy the update using SMS if you have updated the AIP from the original baseline. For more information, see the Office Administrative Installation Point heading in this section. Office Administrative Installation Point If you installed your application from a server location, the server administrator must update the server location with the administrative update and deploy that update to your system. • For supported versions of Microsoft Office 2000, see How to Create an Administrative Installation Point. For more information about how to change the source for a client system from an updated administrative installation point to an Office 2000 Service Pack 3 (SP3), see Microsoft Knowledge Base Article 932889. Note If you plan to manage software updates centrally from an updated administrative image, you can find more information in the article Updating Office 2000 Clients from a Patched Administrative Image. • For supported versions of Microsoft Office XP, see Creating an Administrative Installation Point. For more information on how to change the source for a client system from an updated administrative installation point to an Office XP original baseline source, see Microsoft Knowledge Base Article 922665. Note If you plan to manage software updates centrally from an updated administrative image, you can find more information in the article Updating Office XP Clients from a Patched Administrative Image. • For supported versions of Microsoft Office 2003, see Creating an Administrative Installation Point. For more information on how to change the source for a client computer from an updated administrative installation point to an Office 2003 original baseline source or Service Pack 2 (SP2), see Microsoft Knowledge Base Article 902349. Note If you plan to manage software updates centrally from an updated administrative image, you can find more information in the article, Distributing Office 2003 Product Upgrades. • For supported versions of the 2007 Microsoft Office system, see Create a network installation point for the 2007 Office system. Note If you plan to manage security updates centrally, use Windows Server Update Services. For more information about how to deploy security updates for the 2007 Microsoft Office system using Windows Server Update Services, visit the Windows Server Update Services Web site. Update Compatibility Evaluator and Application Compatibility Toolkit Updates often write to the same files and registry settings required for your applications to run. This can trigger incompatibilities and increase the time it takes to deploy security updates. You can streamline testing and validating Windows updates against installed applications with the Update Compatibility Evaluator components included with Application Compatibility Toolkit 5.0. The Application Compatibility Toolkit (ACT) contains the necessary tools and documentation to evaluate and mitigate application compatibility issues before deploying Microsoft Windows Vista, a Windows Update, a Microsoft Security Update, or a new version of Windows Internet Explorer in your environment. Top of section Security Update Deployment Affected Software For information about the specific security update for your affected software, click the appropriate link: * Excel 2000 (all editions) * Excel 2002 (all editions) * Excel 2003 and Excel Viewer 2003 (all editions) * Excel 2007, Excel Viewer, and Microsoft Office Compatibility Pack for Word, Excel,and PowerPoint 2007 File Formats (all editions) * Office SharePoint Server 2007 (all editions) * Office 2004 for Mac * Office 2008 for Mac * Open XML File Format Converter for Mac Other Information Acknowledgments Microsoft thanks the following for working with us to help protect customers: • Wushi, working with TippingPoint and the Zero Day Initiative, for reporting the File Format Parsing Vulnerability (CVE-2008-3471). • Lionel d'Hauenens of Labo Skopia working with the iDefense VCP for reporting the Calendar Object Validation Vulnerability (CVE-2008-3477). • Joshua J. Drake of iDefense for reporting the Calendar Object Validation Vulnerability (CVE-2008-3477). Top of section 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. Top of section 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. Top of section Revisions • V1.0 (October 14, 2008): Bulletin published. • V1.1 (October 15, 2008): Changed the Systems Management Server detection and deployment summary to "yes" for all supported versions of Microsoft Office Excel Viewer 2003 in the Detection and Deployment Tools and Guidance section. This is an informational change only. There were no changes to the security update binaries or detection logic. • V1.2 (October 29, 2008): Added entry to the section, Frequently Asked Questions (FAQ) Related to This Security Update, to explain any additional security features included in this update for Microsoft Office 2003 Service Pack 2. Added missing entries for Excel 2003 Service Pack 3 to the section, Detection and Deployment Tools and Guidance. Finally, corrected references to Windows Installer Redistributable in the section, Security Update Deployment. This is an informational change only. There were no changes to the security update binaries. [***** End Microsoft Security Bulletin (MS08-057) *****] _______________________________________________________________________________ DOE-CIRC wishes to acknowledge the contributions of Microsoft for the information contained in this bulletin. _______________________________________________________________________________ DOE-CIRC provides the U.S. Department of Energy with incident response, reporting, and tracking, along with other computer security support. DOE-CIRC is a member of GFIRST, the Government Forum of Incident Responders and Security Teams and FIRST an international incident response and security organization. DOE-CIRC services are available to DOE and DOE contractors. DOE-CIRC can be contacted at: Voice: +1 866-941-2472 (7x24) FAX: +1 702-932-0189 STU-III: Call the voice number. E-mail: doecirc@doecirc.energy.gov Previous DOE-CIRC notices, anti-virus software, and other information are available from the DOE-CIRC Computer Security Archive. World Wide Web: http://doecirc.energy.gov/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE and ESnet computing communities receive DOE-CIRC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with DOE-CIRC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product or process disclosed, or represents that its use would not infringe privately owned rights. 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