__________________________________________________________ The U.S. Department of Energy Cyber Incident Response Capability __ __ __ ___ __ __ ___ ___ | \ | | |_ __ / | |__| / |__/ |__| |__ \___ __|__ | \ \___ __________________________________________________________ INFORMATION BULLETIN Vulnerability in Active Directory [Microsoft Security Bulletin (MS08-060)] October 15, 2008 15:00 GMT Number T-005 [REVISED 29 Oct 2008] ______________________________________________________________________________ PROBLEM: A remote code execution vulnerability exists inimplementations of Active Directory on Microsoft Windows 2000 Server. This could allow remote code execution. PLATFORM: Windows 2000 Server with Active Directory DAMAGE: Remote code execution. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. The vulnerability is due to incorrect ASSESSMENT: memory allocation when receiving specially crafted LDAP or LDAPS requests. An attacker who successfully exploited this vulnerability could take complete control of an affected system. ______________________________________________________________________________ CVSS 2 BASE SCORE: 7.4 TEMPORAL SCORE: 5.8 VECTOR: (AV:A/AC:M/Au:S/C:C/I:C/A:C/E:POC/RL:OF/RC:C) ______________________________________________________________________________ LINKS: DOE-CIRC BULLETIN: http://doecirc.energy.gov/ciac/bulletins/t-005.shtml ORIGINAL BULLETIN: http://www.microsoft.com/technet/security/Bulletin/MS08-060.mspx CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2008-4023 ______________________________________________________________________________ REVISION HISTORY: 10/29/2008 - revised T-005 to reflect changes Microsoft has made in MS08-060 where they updated the Non-Affected Software table. [***** Start Microsoft Security Bulletin (MS08-060) *****] Microsoft Security Bulletin MS08-060 – Critical Vulnerability in Active Directory Could Allow Remote Code Execution (957280) Published: October 14, 2008 | Updated: October 15, 2008 Version: 1.1 General Information Executive Summary This security update resolves a privately reported vulnerability in implementations of Active Directory on Microsoft Windows 2000 Server. The vulnerability could allow remote code execution if an attacker gains access to an affected network. This vulnerability only affects Microsoft Windows 2000 servers configured to be domain controllers. If a Microsoft Windows 2000 server has not been promoted to a domain controller, it will not be listening to Lightweight Directory Access Protocol (LDAP) or LDAP over SSL (LDAPS) queries, and will not be exposed to this vulnerability. This security update is rated Critical for implementations of Active Directory on Microsoft Windows 2000 Server. For more information, see the subsection, Affected and Non-Affected Software, in this section. The security update addresses the vulnerability by correctly allocating memory for client LDAP requests. 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 Operating System Component Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by this Update Microsoft Windows 2000 Server Service Pack 4 Active Directory Remote Code Execution Critical MS08-035 Non-Affected Software Operating System Component Microsoft Windows 2000 Professional Service Pack 4 Not applicable Windows XP Service Pack 2 and Windows XP Service Pack 3 ADAM Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 ADAM Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Active Directory ADAM Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 Active Directory ADAM Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems Not applicable Windows Vista and Windows Vista Service Pack 1 Not applicable Windows Vista x64 Edition and Windows Vista x64 Edition Service Pack 1 Not applicable Windows Server 2008 for 32-bit Systems Active Directory AD LDS Windows Server 2008 for x64-based Systems Active Directory AD LDS Windows Server 2008 for Itanium-based Systems Active Directory Vulnerability Information Severity Ratings and Vulnerability Identifiers Vulnerability Severity Rating and Maximum Security Impact by Affected Software Affected Software Active Directory Overflow Vulnerability - CVE-2008-4023 Aggregate Severity Rating Active Directory on Microsoft Windows 2000 Server Service Pack 4 Critical Remote Code Execution Critical Top of section Active Directory Overflow Vulnerability - CVE-2008-4023 A remote code execution vulnerability exists in implementations of Active Directory on Microsoft Windows 2000 Server. The vulnerability is due to incorrect memory allocation when receiving specially crafted LDAP or LDAPS requests. 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-2008-4023. 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 Microsoft Windows 2000 Server Service Pack 4 Yes For more information about MBSA 2.1, see MBSA 2.1 Frequently Asked Questions. 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 Microsoft Windows 2000 Server Service Pack 4 Yes Yes Yes Yes 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. Security Update Deployment Affected Software For information about the specific security update for your affected software, click the appropriate link: * Windows 2000 Server with Active Directory Other Information Acknowledgments Microsoft thanks the following for working with us to help protect customers: • Paul Miseiko of nCircle for reporting the Active Directory Overflow Vulnerability (CVE-2008-4023) 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): Updated the Non-Affected Software table. [***** End Microsoft Security Bulletin (MS08-060) *****] _______________________________________________________________________________ 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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