__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Vulnerabilities in Microsoft Office (932554) [Microsoft Security Bulletin MS07-015] February 14, 2007 12:00 GMT Number R-131 [REVISED 1 Mar 2007] [REVISED 24 Apr 2008] ______________________________________________________________________________ PROBLEM: Vulnerabilities exist in Microsoft PowerPoint and Excel that could allow remote code execution. PLATFORM: Tested Software and Security Update Download Locations: Affected Software: • Microsoft Office 2000 Service Pack 3 • Microsoft Access 2000 • Microsoft Excel 2000 • Microsoft FrontPage 2000 • Microsoft Outlook 2000 • Microsoft PowerPoint 2000 • Microsoft Publisher 2000 • Microsoft Word 2000 • Microsoft Office XP Service Pack 3 • Microsoft Access 2002 • Microsoft Excel 2002 • Microsoft FrontPage 2002 • Microsoft Outlook 2002 • Microsoft PowerPoint 2002 • Microsoft Publisher 2002 • Microsoft Visio 2002 • Microsoft Word 2002 • Microsoft Office 2003 Service Pack 2 • Microsoft Access 2003 • Microsoft Excel 2003 • Microsoft Excel 2003 Viewer • Microsoft FrontPage 2003 • Microsoft InfoPath 2003 • Microsoft OneNote 2003 • Microsoft Outlook 2003 • Microsoft PowerPoint 2003 • Microsoft Project 2003 • Microsoft Publisher 2003 • Microsoft Visio 2003 • Microsoft Word 2003 • Microsoft Excel 2003 Viewer • Microsoft Word 2003 Viewer • Microsoft Project 2000 Service Release 1 • Microsoft Project 2002 Service Pack 1 • Microsoft Visio 2002 Service Pack 2 • Microsoft Office 2004 for Mac Non-Affected Software: • 2007 Microsoft Office System • Microsoft Office 2003 Service Pack 2 • Microsoft PowerPoint 2003 Viewer • Microsoft Works Suites: • Microsoft Works Suite 2004 • Microsoft Works Suite 2005 • Microsoft Works Suite 2006 DAMAGE: Could allow remote code execution. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. An intruder who can coerce a user to open a ASSESSMENT: malicious PowerPoint or Excel document can run arbitrary code in the security context of the logged-in user. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-131.shtml ORIGINAL BULLETIN: http://www.microsoft.com/technet/security/Bulletin/MS07- 015.mspx CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2006-3877 CVE-2007-0671 ______________________________________________________________________________ REVISION HISTORY: 03/01/2007 - revised R-131 to reflect changes Microsoft has made on MS07-015 where tehy updated "Prerequisites and Additional Update" for Office 2003 in the "Security Update Information" section. 04/24/2008 - revised R-131 to reflect changes Microsoft has made on MS07-015 where they updated Microsoft Visio 2002 removed from Microsoft Office XP Service Pack 3 section of Affected Software table. Microsoft Visio 2002 Service Pack 2 is listed spearately in the Affected Software table. [***** Start Microsoft Security Bulletin MS07-015 *****] Microsoft Security Bulletin MS07-015 Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (932554) Published: February 13, 2007 | Updated: April 23, 2008 Version: 1.2 Summary Who Should Read this Document: Customers who use Microsoft Office 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: Microsoft Office 2000 Service Pack 3 — Download the update (KB 929062) • Microsoft Access 2000 • Microsoft Excel 2000 • Microsoft FrontPage 2000 • Microsoft Outlook 2000 • Microsoft PowerPoint 2000 • Microsoft Publisher 2000 • Microsoft Word 2000 • Microsoft Office XP Service Pack 3 — Download the update (KB929063) • Microsoft Access 2002 • Microsoft Excel 2002 • Microsoft FrontPage 2002 • Microsoft Outlook 2002 • Microsoft PowerPoint 2002 • Microsoft Publisher 2002 • Microsoft Word 2002 • Microsoft Office 2003 Service Pack 2 — Download the update (KB929064) • Microsoft Access 2003 • Microsoft Excel 2003 • Microsoft Excel 2003 Viewer • Microsoft FrontPage 2003 • Microsoft InfoPath 2003 • Microsoft OneNote 2003 • Microsoft Outlook 2003 • Microsoft PowerPoint 2003 • Microsoft Project 2003 • Microsoft Publisher 2003 • Microsoft Visio 2003 • Microsoft Word 2003 • Microsoft Excel 2003 Viewer • Microsoft Word 2003 Viewer • Microsoft Project 2000 Service Release 1 — Download the update (KB929062) • Microsoft Project 2002 Service Pack 1 — Download the update (KB929063) • Microsoft Visio 2002 Service Pack 2 — Download the update (KB929063) • Microsoft Office 2004 for Mac — Download the update (KB932185) Non-Affected Software: • 2007 Microsoft Office System • Microsoft Office 2003 Service Pack 2 • Microsoft PowerPoint 2003 Viewer • Microsoft Works Suites: • Microsoft Works Suite 2004 • Microsoft Works Suite 2005 • 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 two newly discovered, privately and publicly reported vulnerabilities. Each vulnerability is documented in its own subsection in the "Vulnerability Details" section of this bulletin. When using vulnerable versions of Office, if a user were logged on with administrative user rights, an attacker who successfully exploited these vulnerabilities could take complete control of the 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. We recommend that customers apply the update immediately. Severity Ratings and Vulnerability Identifiers: Vulnerability Identifiers Impact of Vulnerability Microsoft Office 2000 Microsoft Office XP Microsoft Office 2003 Microsoft Office 2004 for Mac PowerPoint Malformed Record Memory Corruption Vulnerability - CVE-2006-3877 Remote Code Execution Critical Important Important Important Excel Malformed Record Vulnerability - CVE-2007-0671 Remote Code Execution Critical 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. Top of section Vulnerability Details PowerPoint Malformed Record Memory Corruption Vulnerability - CVE-2006-3877: A remote code execution vulnerability exists in PowerPoint and could be exploited when PowerPoint opened a specially crafted file. Such a file might be included in an e-mail attachment or hosted on a malicious web site. An attacker could exploit the vulnerability by constructing a specially crafted PowerPoint file that could allow remote code execution. 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 PowerPoint Malformed Record Memory Corruption Vulnerability - CVE-2006-3877: • An attacker who successfully exploited this vulnerability 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. • In a Web-based attack scenario, an attacker would have to host a Web site that contains a PowerPoint file that is used to attempt to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site. • The vulnerability cannot be exploited automatically through e-mail. For an attack to be successful a user must open an attachment that is sent in an e-mail message. • Users who have installed and are using the Office Document Open Confirmation Tool for Office 2000 will be prompted with Open, Save, or Cancel before opening a document. The features of the Office Document Open Confirmation Tool are incorporated in Office XP and Office 2003. • 2007 Microsoft Office System is not affected by this vulnerability. • PowerPoint 2003 Viewer is not affected by this vulnerability. Top of section Workarounds for PowerPoint Malformed Record Memory Corruption Vulnerability - CVE-2006-3877: • Do not open or save Microsoft PowerPoint files that you receive from untrusted sources or that you receive unexpectedly from trusted sources. This vulnerability could be exploited when a user opens a specially crafted file. Excel Malformed Record Vulnerability - CVE-2007-0671: A remote code execution vulnerability exists in Excel and could be exploited when Excel opened a specially crafted file. Such a file might be included in an e-mail attachment or hosted on a malicious web site. An attacker could exploit the vulnerability by constructing a specially crafted Excel file that could allow remote code execution. 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 Record Vulnerability - CVE-2007-0671: • An attacker who successfully exploited this vulnerability 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. • In a Web-based attack scenario, an attacker would have to host a Web site that contains an Excel file that is used to attempt to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site. • The vulnerability cannot be exploited automatically through e-mail. For an attack to be successful a user must open an attachment that is sent in an e-mail message. • Users who have installed and are using the Office Document Open Confirmation Tool for Office 2000 will be prompted with Open, Save, or Cancel before opening a document. The features of the Office Document Open Confirmation Tool are incorporated in Office XP and Office 2003. • 2007 Microsoft Office System is not affected by this vulnerability. Top of section Workarounds for Excel Malformed Record Vulnerability - CVE-2007-0671: • Do not open or save Microsoft Excel files that you receive from untrusted sources or that you receive unexpectedly from trusted sources. This vulnerability could be exploited when a user opens a specially crafted file. Security Update Information Affected Software: For information about the specific security update for your affected software, click the appropriate link: Office 2000 Office XP Office 2003 Office 2004 for Mac Acknowledgments Microsoft thanks the following for working with us to help protect customers: • Chris Ries of VigilantMinds Inc. for reporting the PowerPoint Malformed Record Memory Corruption Vulnerability (CVE-2006-3877). 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 (February 13, 2007): Bulletin published. • V1.1 (February 28, 2007) Bulletin updated: “Prerequisites and Additional Update” for Office 2003 in the “Security Update Information” section. • V1.2 (April 23, 2008) Bulletin updated: Microsoft Visio 2002 removed from Microsoft Office XP Service Pack 3 section of Affected Software table. Microsoft Visio 2002 Service Pack 2 is listed separately in the Affected Software table. [***** End Microsoft Security Bulletin MS07-015 *****] _______________________________________________________________________________ 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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