__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Vulnerabilities in Microsoft Excel (927198) [Microsoft Security Bulletin MS07-002] January 9, 2007 20:00 GMT Number R-104 [REVISED 18 Jan 2007] [REVISED 19 Jan 2007] ______________________________________________________________________________ PROBLEM: A remote code execution vulnerability exists in Microsoft Excel. PLATFORM: Tested Software and Security Update Download Locations: Affected Software: • Microsoft Office 2000 Service Pack 3 • Microsoft Excel 2000 • Microsoft Office XP Service Pack 3 • Microsoft Excel 2002 • Microsoft Office 2003 Service Pack 2 • Microsoft Excel 2003 • Microsoft Office Excel Viewer 2003 • Microsoft Works Suites: • Microsoft Works Suite 2004 • Microsoft Works Suite 2005 • Microsoft Office 2004 for Mac • Microsoft Office v. X for Mac Non-Affected Software: • 2007 Microsoft Office system • Microsoft Office Excel 2007 • Microsoft Works Suites: • Microsoft Works Suite 2006 Storage Management Appliance v2.1 Software running on Storage Management Appliance I, II, III DAMAGE: If a user is logged on with administrative user rights, 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. Users whose accounts are configured to have fewer user rights on the system could be less affected than users who operate with administrative user rights. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is HIGH. If a user is logged on with administrative ASSESSMENT: user rights, 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. Users whose accounts are configured to have fewer user rights on the system could be less affected than users who operate with administrative user rights. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-104.shtml ORIGINAL BULLETIN: Microsoft Security Bulletin MS07-002 (927198) http://www.microsoft.com/technet/security/Bulletin/MS07- 002.mspx ADDITIONAL LINK: Visit Hewlett-Packards Subscription Service for: HPSBST02184 SSRT071296 rev. 1 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-0027 CVE-2007-0028 CVE-2007-0029 CVE-2007-0030 CVE-2007-0031 ______________________________________________________________________________ REVISION HISTORY: 01/18/2007 - revised to add a link to Hewlett-Packards Subcription Service for HPSBST02184 SSRT071296 rev. 1 for Storage Management Appliance v2.1 Software running on Storage Management Appliance I, II, III. 01/19/2007 - revised to show where Microsoft has revised MS07-002 to show they re-released to re-offer the security update to customers with Microsoft Excel 2000. [***** Start Microsoft Security Bulletin MS07-002 *****] Microsoft Security Bulletin MS07-002 Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (927198) Published: January 9, 2007 |Updated: January 18, 2007 Version: 2.0 Summary Who Should Read this Document: Customers who use Microsoft Excel Impact of Vulnerability: Remote Code Execution Maximum Severity Rating: Critical Recommendation: Customers should apply the update immediately Security Update Replacement: This bulletin replaces a prior security update. See the frequently asked questions (FAQ) section of this bulletin for the complete list. Caveats: None Tested Software and Security Update Download Locations: Affected Software: • Microsoft Office 2000 Service Pack 3 • Microsoft Excel 2000 Download the update (KB925524) • Microsoft Office XP Service Pack 3 • Microsoft Excel 2002 Download the update (KB925523) • Microsoft Office 2003 Service Pack 2 • Microsoft Excel 2003 Download the update (KB925257) • Microsoft Office Excel Viewer 2003 Download the update (KB925525) • Microsoft Works Suites: • Microsoft Works Suite 2004 - Download the update (KB925523) (same as the Microsoft Excel 2002 update) • Microsoft Works Suite 2005 - Download the update (KB925523) (same as the Microsoft Excel 2002 update) • Microsoft Office 2004 for Mac - Download the update (KB930402) • Microsoft Office v. X for Mac - Download the update (KB930403) Non-Affected Software: • 2007 Microsoft Office system • Microsoft Office Excel 2007 • Microsoft Works Suites: • Microsoft Works Suite 2006 The software in this list has been tested to determine whether the versions are affected. Other versions either no longer include security update support or may not be affected. To determine the support life cycle for your product and version, visit the Microsoft Support Lifecycle Web site. Top of section General Information Executive Summary Executive Summary: This update resolves several newly discovered, privately reported vulnerabilities. Each vulnerability is documented in its own subsection in the "Vulnerability Details" section of this bulletin. An attacker who successfully exploited the most severe of 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. We recommend that customers apply the update immediately. Severity Ratings and Vulnerability Identifiers: Vulnerability Identifiers Impact of Vulnerability Microsoft Excel 2000 Microsoft Excel 2002 Microsoft Office Excel 2003 Microsoft Excel Viewer 2003 Microsoft Excel 2004 for Mac and Excel v.X for Mac Excel Malformed IMDATA Record Vulnerability - CVE-2007-0027 Remote Code Execution Critical Important None None Important Excel Malformed Record Vulnerability - CVE-2007-0028 Remote Code Execution Critical Important Important Important Important Excel Malformed String Vulnerability - CVE 2007-0029 Remote Code Execution Critical Important Important Important Important Excel Malformed Column Record Vulnerability - CVE-2007-0030 Remote Code Execution Critical Important Important Important Important Excel Malformed Palette Record Vulnerability - CVE-2007-0031 Remote Code Execution Critical Important Important None Important Aggregate Severity of All Vulnerabilities Critical Important Important Important Important This assessment is based on the types of systems that are affected by the vulnerability, their typical deployment patterns, and the effect that exploiting the vulnerability would have on them. Note The severity ratings for Microsoft Works Suite maps to the Microsoft Excel versions as follows: The Microsoft Works Suite 2004 and 2005 severity rating is the same as the Microsoft Excel 2002 severity rating. Frequently Asked Questions (FAQ) Related to This Security Update Vulnerability Details * Excel Malformed IMDATA Record Vulnerability - CVE-2007-0027: A remote code execution vulnerability exists in Microsoft Excel. An attacker could exploit this vulnerability when Excel parses a file and processes a malformed IMDATA record. If a user is logged on with administrative user rights, 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. Users whose accounts are configured to have fewer user rights on the system could be less affected than users who operate with administrative user rights. Mitigating Factors for Excel Malformed IMDATA Record Vulnerability - CVE-2007-0027: Workarounds for Excel Malformed IMDATA Record Vulnerability - CVE-2007-0027: FAQ for Excel Malformed IMDATA Record Vulnerability - CVE-2007-0027: * Excel Malformed Record Vulnerability - CVE-2007-0028: A remote code execution vulnerability exists in Microsoft Excel. An attacker could exploit this vulnerability when Excel parses a file and processes a malformed record. If a user is logged on with administrative user rights, 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. Users whose accounts are configured to have fewer user rights on the system could be less affected than users who operate with administrative user rights. Mitigating Factors for Excel Malformed Record Vulnerability - CVE-2007-0028: Workarounds for Excel Malformed Record Vulnerability - CVE-2007-0028: FAQ for Excel Malformed Record Vulnerability - CVE-2007-0028: * Excel Malformed String Vulnerability - CVE-2007-0029: A remote code execution vulnerability exists in Microsoft Excel that could allow an attacker who successfully exploited this vulnerability to take complete control of the affected system. If a user were logged on with administrative user rights, 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. Users whose accounts are configured to have fewer user rights on the system could be less affected than users who operate with administrative user rights. Mitigating Factors for Excel Malformed String Vulnerability - CVE-2007-0029: Workarounds for Excel Malformed String Vulnerability - CVE-2007-0029: FAQ for Excel Malformed String Vulnerability - CVE-2007-0029: * Excel Malformed Column Record Vulnerability - CVE-2007-0030: A remote code execution vulnerability exists in Microsoft Excel. An attacker could exploit this vulnerability when Excel parses a file and processes a malformed Column record. If a user were logged on with administrative user rights, 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. Users whose accounts are configured to have fewer user rights on the system could be less affected than users who operate with administrative user rights. Mitigating Factors for Excel Malformed Column Record Vulnerability - CVE-2007-0030: Workarounds for Excel Malformed Column Record Vulnerability - CVE-2007-0030: FAQ for Excel Malformed Column Record Vulnerability - CVE-2007-0030: * Excel Malformed Palette Record Vulnerability - CVE-2007-0031: A remote code execution vulnerability exists in Microsoft Excel. An attacker could exploit this vulnerability when Excel parses a file and processes a malformed Palette record. If a user were logged on with administrative user rights, 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. Users whose accounts are configured to have fewer user rights on the system could be less affected than users who operate with administrative user rights. Mitigating Factors for Excel Malformed Palette Record Vulnerability - CVE-2007-0031: Workarounds for Excel Malformed Palette Record Vulnerability - CVE-2007-0031: FAQ for Excel Malformed Palette Record Vulnerability - CVE-2007-0031: Security Update Information For information about the specific security update for your affected software, click the appropriate link: * Excel 2000 * Excel 2002 * Excel 2003 * Office 2004 for Mac * Ovvice v.X for Mac Acknowledgments Microsoft thanks the following for working with us to help protect customers: • Jeff Gennari of CERT for reporting the Excel Malformed IMDATA Record Vulnerability - CVE-2007-0027 • Jie Ma of Fortinet Security Research Team for reporting the Excel Malformed Record Vulnerability - CVE-2007-0028 • NSFocus Security Team for reporting the Excel Malformed String Vulnerability - CVE-2007-0029 • Greg MacManus of iDefense Labs for reporting the Excel Malformed Column Record Vulnerability - CVE-2007-0030 • Greg MacManus of iDefense Labs for reporting the Excel Malformed PALETTE Record Vulnerability - CVE-2007-0031 Obtaining Other Security Updates: Updates for other security issues are available at the following locations: • Security updates are available at the Microsoft Download Center. You can find them most easily by doing a keyword search for "security_patch." • Updates for consumer platforms are available at the Microsoft Update Web site. 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. Security Resources: • The Microsoft TechNet Security Web site provides additional information about security in Microsoft products. • TechNet Update Management Center • Microsoft Software Update Services • Microsoft Windows Server Update Services • Microsoft Baseline Security Analyzer (MBSA) • Windows Update • Microsoft Update • Windows Update Catalog: For more information about the Windows Update Catalog, see Microsoft Knowledge Base Article 323166. • Office Update Software Update Services: By using Microsoft Software Update Services (SUS), administrators can quickly and reliably deploy the latest critical updates and security updates to Windows 2000 and Windows Server 2003-based servers, and to desktop systems that are running Windows 2000 Professional or Windows XP Professional. For more information about how to deploy security updates by using Software Update Services, visit the Software Update Services Web site. Windows Server Update Services: By using Windows Server Update Services (WSUS), administrators can quickly and reliably 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 onto Windows 2000 and later operating systems. For more information about how to deploy security updates using Windows Server Update Services, visit the Windows Server Update Services Web site. Systems Management Server: Microsoft Systems Management Server (SMS) delivers a highly configurable enterprise solution for managing updates. By using SMS, administrators can identify Windows-based systems that require security updates and can perform controlled deployment of these updates throughout the enterprise with minimal disruption to end users. For more information about how administrators can use SMS 2003 to deploy security updates, visit the SMS 2003 Security Patch Management Web site. SMS 2.0 users can also use Software Updates Service Feature Pack to help deploy security updates. For information about SMS, visit the SMS Web site. Note SMS uses the Microsoft Baseline Security Analyzer, the Microsoft Office Detection Tool, and the Enterprise Update Scan Tool to provide broad support for security bulletin update detection and deployment. Some software updates may not be detected by these tools. Administrators can use the inventory capabilities of the SMS in these cases to target updates to specific systems. For more information about this procedure, visit the following Web site. Some security updates require administrative rights following a restart of the system. Administrators can use the Elevated Rights Deployment Tool (available in the SMS 2003 Administration Feature Pack and in the SMS 2.0 Administration Feature Pack) to install these updates. 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 (January 9, 2007): Bulletin published. • V1.1 (January 12, 2007): Bulletin updated Caveats and “What are the known issues that customers may experience when they install this security update?” under the “Frequently Asked Questions (FAQ) Related to This Security Update” section. • V2.0 (January 18, 2007): Bulletin updated: This bulletin has been re-released to re-offer the security update to customers with Microsoft Excel 2000. The security update previously did not correctly process the phonetic information that is embedded in files that are created by using Excel in the Korean, Chinese, or Japanese executable mode. For additional information see Microsoft Knowledge Base Article 931183. [***** End Microsoft Security Bulletin MS07-002 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Microsoft for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC 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 CIAC. 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 the University of California 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. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. 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