__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Vulnerability in Windows Services for UNIX [Microsoft Security Bulletin (MS07-053)] September 12, 2007 12:00 GMT Number R-344 [REVISED 21 Sept 2007] ______________________________________________________________________________ PROBLEM: A vulnerability exists in Windows Services for UNIX where running certain setuid binary files could allow an attacker to gain elevated privilege. PLATFORM: Windows Server 2003 (all editions) Windows Vista (all editions) Windows Services for UNIX 3.0 and 3.5 DAMAGE: Elevated privilege. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. An attacker could gain elevated privilege. ASSESSMENT: ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-344.shtml ORIGINAL BULLETIN: http://www.microsoft.com/technet/security/Bulletin/MS07-053.mspx CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-3036 ______________________________________________________________________________ REVISION HISTORY: 09/21/2007 - revised R-344 to reflect changes Microsoft has made in MS07-053 to correct table information for the SMS detection and deployment summary for this security update. SMS 2003 Software Update Services (SUS) can detect this security update with EST. If a previous version of the Extended Security Update Inventory Tool has been installed on SMS, it will need to be upgraded with the current version of the tool to enable detection of this security update. [***** Start Microsoft Security Bulletin (MS07-053) *****] Microsoft Security Bulletin MS07-053 - Important Vulnerability in Windows Services for UNIX Could Allow Elevation of Privilege (939778) Published: September 11, 2007 | Updated: September 19, 2007 Version: 1.1 General Information Executive Summary This important security update resolves one publicly disclosed vulnerability. A vulnerability exists in Windows Services for UNIX 3.0, Windows Services for UNIX 3.5, and Subsystem for UNIX-based Applications where running certain setuid binary files could allow an attacker to gain elevation of privilege. This is an important security update for supported releases of Windows 2000, Windows Server 2003, Windows Services for UNIX 3.0, Windows Services for UNIX 3.5, and Subsystem for UNIX-based Applications, a component of Windows Server 2003 and Windows Vista. For more information, see the subsection, Affected and Non-Affected Software, in this section. 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 security update. Known Issues. None. 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 Windows 2000 Service Pack 4 Windows Services for UNIX 3.0 Elevation of Privilege Important None Windows 2000 Service Pack 4 Windows Services for UNIX 3.5 Elevation of Privilege Important None Windows XP Service Pack 2 Windows Services for UNIX 3.0 Elevation of Privilege Important None Windows XP Service Pack 2 Windows Services for UNIX 3.5 Elevation of Privilege Important None Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Windows Services for UNIX 3.0 Elevation of Privilege Important None Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Windows Services for UNIX 3.5 Elevation of Privilege Important None Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Subsystem for UNIX-based Applications Elevation of Privilege Important None Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 Subsystem for UNIX-based Applications Elevation of Privilege Important None Window Vista Subsystem for UNIX-based Applications Elevation of Privilege Important None Windows Vista x64 Edition Subsystem for UNIX-based Applications Elevation of Privilege Important None Non-affected Software Software Windows Services for UNIX 1.0 Windows Services for UNIX 2.0 Windows Services for UNIX 2.1 Windows Services for UNIX 2.2 Vulnerability Information Severity Ratings and Vulnerability Identifiers Affected Software Windows Services for UNIX Could Allow Elevation of Privilege -- CVE-2007-3036 Aggregate Severity Rating Windows Services for UNIX 3.0 on Windows 2000 Service Pack 4 Important Elevation of Privilege Important Windows Services for UNIX 3.5 on Windows 2000 Service Pack 4 Important Elevation of Privilege Important Windows Services for UNIX 3.0 on Windows XP Service Pack 2 Important Elevation of Privilege Important Windows Services for UNIX 3.5 on Windows XP Service Pack 2 Important Elevation of Privilege Important Windows Services for UNIX 3.0 on Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Important Elevation of Privilege Important Windows Services for UNIX 3.5 on Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Important Elevation of Privilege Important Subsystem for UNIX-based Applications on Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Important Elevation of Privilege Important Subsystem for UNIX-based Applications on Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 Important Elevation of Privilege Important Subsystem for UNIX-based Applications on Window Vista Important Elevation of Privilege Important Subsystem for UNIX-based Applications on Windows Vista x64 Edition Important Elevation of Privilege Important Top of section Windows Services for UNIX Could Allow Elevation of Privilege - CVE-2007-3036 A vulnerability exists in Windows Services for UNIX 3.0, Windows Services for UNIX 3.5, and Subsystem for UNIX-based Applications where running certain setuid binary files could allow an attacker to gain elevation of privilege. An attacker who successfully exploited this vulnerability could gain elevation of privilege. To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2007-3036. 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 and Enterprise Update Scan Tool (EST) 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 and EST detection summary for this security update. Software MBSA 1.2.1 EST MBSA 2.0.1 Windows Services for UNIX 3.0 on Windows 2000 Service Pack 4 No Yes No Windows Services for UNIX 3.0 on Windows XP Service Pack 2 No Yes No Windows Services for UNIX 3.5 on Windows XP Service Pack 2 No Yes No Windows Services for UNIX 3.0 on Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 No Yes No Windows Services for UNIX 3.5 on Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 No Yes No Subsystem for UNIX-based Applications on Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 No Yes Yes Subsystem for UNIX-based Applications on Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 No Yes Yes Subsystem for UNIX-based Applications on Window Vista No Yes See Note for Windows Vista below Subsystem for UNIX-based Applications on Windows Vista x64 Edition No Yes See Note for Windows Vista below 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 Windows Services for UNIX 3.0 on Windows 2000 Service Pack 4 Yes (with EST) No Windows Services for UNIX 3.0 on Windows XP Service Pack 2 Yes (with EST) No Windows Services for UNIX 3.5 on Windows XP Service Pack 2 Yes (with EST) No Windows Services for UNIX 3.0 on Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Yes (with EST) No Windows Services for UNIX 3.5 on Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Yes (with EST) No Subsystem for UNIX-based Applications on Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 Yes (with EST) No Subsystem for UNIX-based Applications on Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 Yes (with EST) No Subsystem for UNIX-based Applications on Window Vista Yes (with EST) See Note for Windows Vista below Subsystem for UNIX-based Applications on Windows Vista x64 Edition Yes (with EST) 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. Top of section Security Update Deployment Affected Software For information about the specific security update for your affected software, click the appropriate link: * Windows Server 2003 (all editions) * Windows Vista (all editions) * Windows Services for UNIX 3.0 and 3.5 Other Information Acknowledgments Microsoft thanks the following for working with us to help protect customers: • Brian A. Reiter of WolfeReiter for working with us on the Windows Services for UNIX Could Allow Elevation of Privilege (CVE-2007-3036). 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 (September 11, 2007): Bulletin published. • V1.1 (September 19, 2007): Bulletin revised to correct table information for the SMS detection and deployment summary for this security update. SMS 2003 Software Update Services (SUS) can detect this security update with EST. If a previous version of the Extended Security Update Inventory Tool has been installed on SMS, it will need to be upgraded with the current version of the tool to enable detection of this security update. [***** End Microsoft Security Bulletin (MS07-053) *****] _______________________________________________________________________________ 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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