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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2013.1764 Vulnerability in Windows Could Allow Remote Code Execution (2893294) 10 December 2013 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Windows Publisher: Microsoft Operating System: Windows XP Windows Server 2003 Windows Vista Windows Server 2008 Windows 7 Windows Server 2008 R2 Windows 8 Windows RT Windows Server 2012 Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2013-3900 Original Bulletin: https://technet.microsoft.com/en-us/security/bulletin/ms13-098 - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS13-098 - Critical Vulnerability in Windows Could Allow Remote Code Execution (2893294) Published Date: December 10, 2013 Version: 1.0 General Information Executive Summary This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if user or application runs or installs a specially crafted, signed portable executable (PE) file on an affected system. This security update is rated Critical for all supported releases of Windows. For more information, see the subsection, Affected and Non-Affected Software, in this section. Affected Software Windows XP Service Pack 3 Windows XP Professional x64 Edition Service Pack 2 Windows Server 2003 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 Service Pack 2 Windows Vista x64 Edition Service Pack 2 Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2 Windows Server 2008 for Itanium-based Systems Service Pack 2 Windows 7 for 32-bit Systems Service Pack 1 Windows 7 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for Itanium-based Systems Service Pack 1 Windows 8 for 32-bit Systems Windows 8 for x64-based Systems Windows 8.1 for 32-bit Systems Windows 8.1 for x64-based Systems Windows Server 2012 Windows Server 2012 R2 Windows RT[1] Windows RT 8.1[1] Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Windows Server 2012 (Server Core installation) Windows Server 2012 R2 (Server Core installation) Vulnerability Information WinVerifyTrust Signature Validation Vulnerability - CVE-2013-3900 A remote code execution vulnerability exists in the way that the WinVerifyTrust function handles Windows Authenticode signature verification for portable executable (PE) files. An anonymous attacker could exploit the vulnerability by modifying an existing signed executable file to leverage unverified portions of the file in such a way as to add malicious code to the file without invalidating the signature. 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 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 =========================================================================== 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 iQIVAwUBUqeYLBLndAQH1ShLAQIr4Q//Wd4dklgfm317qgYt91jilvMuaTP9ttio aiqSizNjYvau8Ewf8C9VkFZ5A2hJQ/JYkotbBf945GaX95Zc5x/vGxuCqugfCnvd QTX+9J1winBDkaOkzlnnuoZZ8N5i9W8MdFI7zCOVs28OtVG5vT9pHwRXNsx4zBn0 Ne6t9v2SeM39M4FW6XD7OpBLKkzl7bzDUMcVh1JLAdKIMUzziCTDZxfpylub/qLC Aks7LoSApVPTn1oEYydCEI98jYwCenPxiL2QQuLVT5daCC0/GFmq3BBybIrMnB2L riS/gk8k7TiaBY6xph0hYp4gbhTC8+i9hF/RCsSsXH10t52NghTO95ONkEznrbU7 +q3QgjEt1wF16cjXF8/3yHI6JcLFzHKebc6/Ntgo3ktE/omMYTnRXVx/taR7GV4d mTsZo05uKrQdM/pmqKyA5+9GiemzuwSfT1Lz9t0RxLbj9/4aq0OZL1JD+soVZNmb HyjaP5UuGubdw1KbQYtg0lMZWYR5PFsTW5mPJfCgiqwJS3vJf+5FVbO9AQieMbdh PFs8hjQqCNmJjoCepfF4A3OA9sgiHXWErw6X/Qi0WB7KpDAtyLkp5F87u1akKDPp 5b47XGBWkcYywAMQ3ZKVkUkgkiRfI7rLFItzXKvpMEdiB4oIbAm87htl8IG3SOW3 9YPIkrEhB2c= =kio4 -----END PGP SIGNATURE-----