__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Cumulative Security Update for Internet Explorer [Microsoft Security Bulletin (MS07-045)] August 14, 2007 19:00 GMT Number R-319 [REVISED 24 Aug 2007] [REVISED 30 Aug 2007] [REVISED 11 Oct 2007] ______________________________________________________________________________ PROBLEM: Remote code execution vulnerabilities exists in: 1) the way Internet Explorer parses certain strings in CSS; 2) ActiveX control, tblinf32.dll; and 3) ActiveX object, pdwizard.ocx. PLATFORM: Windows 2000 (all editions) Windows XP (all editions) Windows Server 2003 (all editions) Windows Vista (all editions) DAMAGE: Could allow remote code execution. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. An attacker who successfully exploited this ASSESSMENT: vulnerability could gain the same user rights as the logged on user. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-319.shtml ORIGINAL BULLETIN: http://www.microsoft.com/technet/security/Bulletin/MS07-045.mspx CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-0943 CVE-2007-2216 CVE-2007-3041 ______________________________________________________________________________ REVISION HISTORY: 08/24/2007 - revised R-319 to reflect changes Microsoft has made in MS07-045 where they corrected Registry Verification for Internet Explorer 7 for all supported 32-bit editions, 64-bit editions, and Itanium-based editions of Windows Server 2003. 08/30/2007 - revised R-319 to reflect changes Microsoft has made in MS07-045 where they revised to document the functionality change of increasing the limit on cookies from 20 to 50. 10/11/2007 - revised R-319 to reflect changes Microsoft has made in MS07-045 where they corrected the name of an affected file in the text only. [***** Start Microsoft Security Bulletin (MS07-045) *****] Microsoft Security Bulletin MS07-045 - Critical Cumulative Security Update for Internet Explorer (937143) Published: August 14, 2007 | Updated: October 10, 2007 Version: 1.3 General Information Executive Summary This critical security update resolves three privately reported vulnerabilities. These vulnerabilities could allow remote code execution if a user viewed a specially crafted Web page using Internet Explorer. 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. The security update is rated critical for supported releases of Internet Explorer 5.01 and Internet Explorer 6 Service Pack 1. For Internet Explorer 6 for supported versions and editions of Windows XP Home and Windows XP Professional, the security update is also rated critical, otherwise it is rated moderate for other supported operating systems. For Internet Explorer 7 for supported versions and editions of Windows XP and Windows XP Professional, and Internet Explorer 7 in Windows Vista, the security update is rated Important, otherwise it is rated low. For more information, see the subsection, Affected and Non-Affected Software, in this section. The security update addresses two vulnerabilities by setting the kill bit for ActiveX controls, and addresses the third vulnerability by modifying the way that Internet Explorer handles certain strings in CSS files. For more information about the vulnerabilities, 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 937143 documents the currently known issues that customers may experience when they install this security update. The article also documents recommended solutions for these issues. Top of section Affected and Non-Affected Software The software listed here has 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 Operating System Component Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by This Update Internet Explorer 5.01 and Internet Explorer 6 Service Pack 1 Microsoft Windows 2000 Service Pack 4 Microsoft Internet Explorer 5.01 Service Pack 4 Remote Code Execution Critical MS07-033 Microsoft Windows 2000 Service Pack 4 Microsoft Internet Explorer 6 Service Pack 1 Remote Code Execution Critical MS07-033 Internet Explorer 6 Windows XP Service Pack 2 Microsoft Internet Explorer 6 Remote Code Execution Critical MS07-033 Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 Microsoft Internet Explorer 6 Remote Code Execution Critical MS07-033 Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Microsoft Internet Explorer 6 Remote Code Execution Moderate MS07-033 Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 Microsoft Internet Explorer 6 Remote Code Execution Moderate MS07-033 Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems Microsoft Internet Explorer 6 Remote Code Execution Moderate MS07-033 Internet Explorer 7 Windows XP Service Pack 2 Windows Internet Explorer 7 Remote Code Execution Important MS07-033 Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 Windows Internet Explorer 7 Remote Code Execution Important MS07-033 Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Windows Internet Explorer 7 Remote Code Execution Low MS07-033 Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 Windows Internet Explorer 7 Remote Code Execution Low MS07-033 Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems Windows Internet Explorer 7 Remote Code Execution Low MS07-033 Windows Vista Windows Internet Explorer 7 Remote Code Execution Important MS07-033 Windows Vista x64 Edition Windows Internet Explorer 7 Remote Code Execution Important MS07-033 Vulnerability Information Severity Ratings and Vulnerability Identifiers Vulnerability Severity Rating and Maximum Security Impact by Affected Software Affected Software CSS Memory Corruption Vulnerability - CVE-2007-0943 ActiveX Object Vulnerability - CVE-2007-2216 ActiveX Object Memory Corruption Vulnerability - CVE-2007-3041 Aggregate Severity Rating Internet Explorer 5.01 and Internet Explorer 6 Service Pack 1 Internet Explorer 5.01 Service Pack 4 on Microsoft Windows 2000 Service Pack 4 Critical Remote Code Execution Critical Remote Code Execution Critical Remote Code Execution Critical Internet Explorer 6 Service Pack 1 when installed on Microsoft Windows 2000 Service Pack 4 None Critical Remote Code Execution Critical Remote Code Execution Critical Internet Explorer 6 Internet Explorer 6 for Windows XP Service Pack 2 None Critical Remote Code Execution Critical Remote Code Execution Critical Internet Explorer 6 for Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 None Critical Remote Code Execution Critical Remote Code Execution Critical Internet Explorer 6 for Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 None Moderate Remote Code Execution Moderate Remote Code Execution Moderate Internet Explorer 6 for Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 None Moderate Remote Code Execution Moderate Remote Code Execution Moderate Internet Explorer 6 for Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems None Moderate Remote Code Execution Moderate Remote Code Execution Moderate Internet Explorer 7 Internet Explorer 7 for Windows XP Service Pack 2 None Important Remote Code Execution Important Remote Code Execution Important Internet Explorer 7 for Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 None Important Remote Code Execution Important Remote Code Execution Important Internet Explorer 7 for Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 None Low Remote Code Execution Low Remote Code Execution Low Internet Explorer 7 for Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 None Low Remote Code Execution Low Remote Code Execution Low Internet Explorer 7 for Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems None Low Remote Code Execution Low Remote Code Execution Low Internet Explorer 7 in Windows Vista None Important Remote Code Execution Important Remote Code Execution Important Internet Explorer 7 in Windows Vista x64 Edition None Important Remote Code Execution Important Remote Code Execution Important CSS Memory Corruption Vulnerability - CVE-2007-0943 A remote code execution vulnerability exists in the way Internet Explorer parses certain strings in CSS. 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.. To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2007-0943. ActiveX Object Vulnerability - CVE-2007-2216 A remote code execution vulnerability exists in the ActiveX control, tblinf32.dll. This control can also be found under the name of vstlbinf.dll. Both of these components were never intended to be supported in Internet Explorer. An attacker could exploit the vulnerability by constructing a specially crafted Web page that could potentially allow remote code execution if a user visited the Web page. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged on user. To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2007-2216. ActiveX Object Memory Corruption Vulnerability - CVE-2007-3041 A remote code execution vulnerability exists in the ActiveX object, pdwizard.ocx. 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. To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2007-3041. Update Information Detection and Deployment Tools and Guidance Manage the software and security updates you need to deploy to the servers, desktop, and mobile computers 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 at the Microsoft Download Center. You can find them most easily by doing a keyword search for "security_patch." Finally, security updates can be downloaded from the Windows Update Catalog. For more information about the Windows Update Catalog, see Microsoft Knowledge Base Article 323166. 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), the Extended Security Update Inventory Tool, and the Enterprise Update Scan Tool (EST). 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 Web site. The following table provides the MBSA detection summary for this security update. Software MBSA 1.2.1 MBSA 2.0.1 Windows 2000 Service Pack 4 Yes Yes Windows XP Service Pack 2 Yes Yes Windows XP Professional x64 Edition and Microsoft Windows XP Professional x64 Edition Service Pack 2 No Yes Windows Server 2003 Service Pack 1 and Microsoft Windows Server 2003 Service Pack 2 Yes Yes Windows Server 2003 x64 Edition and Microsoft Windows Server 2003 x64 Edition Service Pack 2 No Yes Windows Server 2003 with SP1 for Itanium-based Systems and Microsoft Windows Server 2003 with SP2 for Itanium-based Systems No Yes Windows Vista No See Note for Windows Vista below Windows Vista x64 Edition No See Note for Windows Vista below Note MBSA 1.2.1 does not support systems with Internet Explorer 7 installed. MBSA 2.0 does support systems with Internet Explorer 7 installed. Note for Windows Vista Microsoft does not support installing MBSA 2.0.1 on computers that run Windows Vista, but you may install MBSA 2.0.1 on a supported operating system and then scan the Windows Vista-based computer remotely. For additional information about MBSA support for Windows Vista, visit the MBSA Web site. See also Microsoft Knowledge Base Article 931943: Microsoft Baseline Security Analyzer (MBSA) support for Windows Vista. For more information about MBSA, visit the MBSA Web site. For more information about the software that Microsoft Update and MBSA 2.0 currently do not detect, see Microsoft Knowledge Base Article 895660. 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 to Windows 2000 and later operating systems. 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 Microsoft Windows 2000 Service Pack 4 Yes Yes Windows XP Service Pack 2 Yes Yes Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 No Yes Windows Server 2003 Service Pack 1 and Microsoft Windows Server 2003 Service Pack 2 Yes Yes Windows Server 2003 x64 Edition and Microsoft Windows Server 2003 x64 Edition Service Pack 2 No Yes Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems No Yes Windows Vista No See Note for Windows Vista below Windows Vista x64 Edition No See Note for Windows Vista below SMS 2.0 and SMS 2003 Software Update Services (SUS) Feature Pack can use MBSA 1.2.1 for detection and therefore have the same limitation that is listed earlier in this bulletin related to programs that MBSA 1.2.1 does not detect. For SMS 2.0, the SMS SUS Feature Pack, which includes the Security Update Inventory Tool (SUIT), can be used by SMS to detect security updates. SMS SUIT uses the MBSA 1.2.1 engine for detection. For more information about SUIT, visit the following Microsoft Web site. For more information about the limitations of SUIT, see Microsoft Knowledge Base Article 306460. The SMS SUS Feature Pack also includes the Microsoft Office Inventory Tool to detect required updates for Microsoft Office applications. 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, visit the following Microsoft Web site. SMS 2003 can also use the Microsoft Office Inventory Tool to detect required updates for Microsoft Office applications. Note for Windows Vista Microsoft Systems Management Server 2003 with Service Pack 3 includes support for Windows Vista manageability. For more information about SMS, visit the SMS Web site. Security Update Deployment Affected Software For information about the specific security update for your affected software, click the appropriate link: * Windows 2000 (all editions) * Windows XP (all editions) * Windows Server 2003 (all editions) * Windows Vista (all editions) Other Information Acknowledgments Microsoft thanks the following for working with us to help protect customers: • NSFocus Security Team for reporting the CSS Memory Corruption Vulnerability - CVE-2007-0943. • Brett Moore of Security-Assessment.com for reporting the ActiveX Object Vulnerability - CVE-2007-2216. 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 (August 14, 2007): Bulletin published. • V1.1 (August 22, 2007): Bulletin revised to correct Registry Key Verification for Internet Explorer 7 for all supported 32-bit editions, 64-bit editions, and Itanium-based editions of Windows Server 2003. • V1.2 (August 29, 2007): Bulletin revised to document the functionality change of increasing the limit on cookies from 20 to 50. • V1.3 (October 10, 2007): Bulletin revised to correct the name of an affected file in the bulletin text only. [***** End Microsoft Security Bulletin (MS07-045) *****] _______________________________________________________________________________ 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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