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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2009.0543 -- [Win] Windows Kernel: Increased Privileges 11 June 2009 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Windows Kernel Publisher: Microsoft Operating System: Windows Impact: Increased Privileges Execute Arbitrary Code/Commands Access: Existing Account CVE Names: CVE-2009-1126 CVE-2009-1125 CVE-2009-1124 CVE-2009-1123 Original Bulletin: http://www.microsoft.com/technet/security/Bulletin/MS09-025.mspx Comment: Two of these vulnerabilities have been made public. Revision History: June 11 2009: Document number changed from ESB-2009.0700 to ESB-2009.0543 June 10 2009: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS09-025 - Important Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege (968537) Published: June 9, 2009 Version: 1.0 General Information Executive Summary This security update resolves two publicly disclosed and two privately reported vulnerabilities in the Windows kernel that could allow elevation of privilege. An attacker who successfully exploited any of these vulnerabilities could execute arbitrary code and 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. An attacker must have valid logon credentials and be able to log on locally to exploit these vulnerabilities. The vulnerabilities could not be exploited remotely or by anonymous users. This security update is rated Important for all supported editions of Microsoft Windows 2000, Windows XP, Windows Server 2003, Windows Vista, and Windows Server 2008. For more information, see the subsection, Affected and Non-Affected Software, in this section. The security update addresses these vulnerabilities by correcting the methods used for validating a change in specific kernel objects, for validating the input passed from user mode to the kernel, and for validating the argument passed to the system call. The security update also addresses a vulnerability by ensuring that the Windows kernel cleans up pointers under error conditions. Affected Software Microsoft Windows 2000 Service Pack 4 Windows XP Service Pack 2 and Windows XP Service Pack 3 Windows XP Professional x64 Edition Service Pack 2 Windows Server 2003 Service Pack 2 Windows Server 2003 x64 Edition Service Pack 2 Windows Server 2003 with SP2 for Itanium-based Systems Windows Vista, Windows Vista Service Pack 1, and Windows Vista Service Pack 2 Windows Vista x64 Edition, Windows Vista x64 Edition Service Pack 1, and Windows Vista x64 Edition Service Pack 2 Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2 (Windows Server 2008 Server Core installation affected) Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2 (Windows Server 2008 Server Core installation affected) Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2 Vulnerability Information Windows Kernel Desktop Vulnerability- CVE-2009-1123 An elevation of privilege vulnerability exists in the way that the Windows kernel does not properly validate changes in certain kernel objects. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Windows Kernel Pointer Validation Vulnerability- CVE-2009-1124 An elevation of privilege vulnerability exists in the Windows kernel due to the insufficient validation of certain pointers passed from user mode. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Windows Driver Class Registration Vulnerability - CVE-2009-1125 An elevation of privilege vulnerability exists because the Windows kernel does not properly validate an argument passed to a Windows kernel system call. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Windows Desktop Parameter Edit Vulnerability - CVE-2009-1126 An elevation of privilege vulnerability exists when the Windows kernel improperly validates input passed from user mode to the kernel when editing a specific desktop parameter. The vulnerability could allow an attacker to run code with elevated privileges. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iD8DBQFKMGVjNVH5XJJInbgRAg0YAJ0aqwV8p/4mjiqP7HrPKM9+/1SW+wCeMgkm 78XoXGhohQ3D1bQpEC4hHu4= =bPeN -----END PGP SIGNATURE-----