__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Vulnerability in Windows Active Directory (926122) [Microsoft Security Bulletin (MS07-039)] July 10, 2007 19:00 GMT Number R-294 [REVISED 13 Jul 2007] [REVISED 27 Jul 2007] ______________________________________________________________________________ PROBLEM: A remote code execution vulneraiblity exists in the way that Active Directory validates a LDAP request. An attacker who successfully exploited this vulnerability could take complete control of an affected system. PLATFORM: Microsoft Windows 2000 Server Service Pack 4 Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 Windows Server 2003 with SP1 for Intanium-based Systems and Windows Server 2003 with SP2 for Intanium-based Systems Storage Management Appliance v2.1 Software running on Storage Management Appliance I, II, III DAMAGE: Remote code execution. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is HIGH. An attacker who successfully exploited this ASSESSMENT: vulnerability could take complete control of an affected system. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-294.shtml ORIGINAL BULLETIN: http://www.microsoft.com/technet/security/Bulletin/MS07-039.mspx ADDITIONAL LINK: Visit Hewlett-Packard's Subscription Service for: HPSBST02243 SSRT071446 rev. 1 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-0040 CVE-2007-3028 ______________________________________________________________________________ REVISION HISTORY: 07/13/2007 - revised R-294 to reflect changes Microsoft has made in MS07-039 where they updated the bulletin to add FAQ section for ADAM dependencies and deployment to all 2000 and 2003 systems. 07/27/2007 - revised R-294 to to add a link to Hewlett-Packard's Subscription Service for HPSBST02243 SSRT071446 rev. 1 for Storage Management Appliance v2.1 Software running on Storage Management Appliance I, II, III. [***** Start Microsoft Security Bulletin (MS07-039) *****] Microsoft Security Bulletin MS07-039 - Critical Vulnerability in Windows Active Directory Could Allow Remote Code Execution (926122) Published: July 10, 2007 | Updated: 12 July 2007 Version: 1.1 General Information Executive Summary This critical security update resolves a privately reported vulnerability in implementations of Active Directory on Windows 2000 Server and Windows Server 2003 that could allow remote code execution or a denial of service condition. Attacks attempting to exploit this vulnerability would most likely result in a denial of service condition. However remote code execution could be possible. On Windows Server 2003 an attacker must have valid logon credentials to exploit this vulnerability. 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. This is a critical security update for supported editions of Windows 2000 and an important security update for supported editions of Windows Server 2003. For more information, see the subsection, Affected and Non-Affected Software, in this section. This security update addresses the vulnerability by validating the number of convertible attributes in the client LDAP request. For more information about the vulnerability, see 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 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 Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by This Update Microsoft Windows 2000 Server Service Pack 4 Remote Code Execution Critical None Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Remote Code Execution Important None Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 Remote Code Execution Important None Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems Remote Code Execution Important None Non-Affected Software Operating System Windows 2000 Professional Service Pack 4 Windows XP Service Pack 2 Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 Windows Vista Windows Vista x64 Edition Note: These editions of Windows are not affected because they do not include the Active Directory server component. Vulnerability Information Severity Ratings and Vulnerability Identifiers Vulnerability Severity Rating and Maximum Security Impact by Affected Software Affected Software Active Directory Remote Code Execution Vulnerability – CVE-2007-0040 Active Directory Denial of Service Vulnerability – CVE- 2007-3028 Aggregate Severity Rating Windows 2000 Server Service Pack 4 Critical Remote Code Execution Important Denial Of Service Critical Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Important Remote Code Execution None Important Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 Important Remote Code Execution None Important Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems Important Remote Code Execution None Important Windows Active Directory Remote Code Execution Vulnerability- CVE-2007-0040 A remote code execution vulnerability exists in the way that Active Directory validates a LDAP request. An attacker who successfully exploited this vulnerability could take complete control of an affected system. To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2007-0040. Windows Active Directory Denial of Service Vulnerability- CVE-2007-3028 A denial of service vulnerability exists in the way that Microsoft Active Directory validates a client-sent LDAP request. An attacker could exploit the vulnerability by sending a specially crafted LDAP request to a server running Active Directory. An attacker who successfully exploited this vulnerability could cause the server to temporarily stop responding. To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2007-3028. 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 Microsoft Windows 2000 Server Service Pack 4 Yes 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 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 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 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. 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 Server (all editions) * Windows Server 2003 (all editions) Other Information Acknowledgments Microsoft thanks the following for working with us to help protect customers: • Peter Winter-Smith of NGSSoftware, for reporting the Windows Active Directory Denial of Service Vulnerability-CVE-2007-3028. • Neel Mehta of IBM Internet Security Systems x-Force, for reporting the Windows Active Directory Remote Code Execution Vulnerability-CVE-2007-0040. 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 (July 10, 2007): Bulletin published. • V1.1 (July 12, 2007): Bulletin Revised: Updating bulletin to add FAQ section for ADAM dependencies and deployment to all 2000 and 2003 systems. [***** End Microsoft Security Bulletin (MS07-039) *****] _______________________________________________________________________________ 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. 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