14 January 2015
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.0083 Vulnerability in Windows Application Compatibility Cache Could Allow Elevation of Privilege (3023266) 14 January 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Windows Publisher: Microsoft Operating System: Windows 7 Windows 8 Windows 8.1 Windows RT Windows RT 8.1 Windows Server 2008 R2 Windows Server 2012 Windows Server 2012 R2 Impact/Access: Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2015-0002 Original Bulletin: https://technet.microsoft.com/en-us/library/security/MS15-001 - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS15-001 - Important Vulnerability in Windows Application Compatibility Cache Could Allow Elevation of Privilege (3023266) Published: January 13, 2015 Version: 1.0 Executive Summary This security update resolves a publicly disclosed vulnerability in Microsoft Windows. The vulnerability could allow elevation of privilege if an attacker logs on to a system and runs a specially crafted application. An authenticated attacker who successfully exploited this vulnerability could bypass existing permission checks that are performed during cache modification in the Microsoft Windows Application Compatibility component and execute arbitrary code with elevated privileges. This security update is rated Important for all supported editions of Windows 7, Windows Server 2008 R2, Windows 8, Windows Server 2012, Windows RT, Windows 8.1, Windows Server 2012 R2, and Windows RT 8.1. Affected Software 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  Windows RT 8.1  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)  This update is available via Windows Update only. Vulnerability Information Microsoft Application Compatibility Infrastructure Elevation of Privilege Vulnerability - CVE-2015-0002 An elevation of privilege vulnerability exists in how the Microsoft Windows Application Compatibility Infrastructure (AppCompat) improperly checks the authorization of the caller's impersonation token. An attacker could attempt to exploit this to run a privileged application. The update addresses the vulnerability by implementing proper authorization checking of impersonation token usage. This vulnerability has been publicly disclosed. It has been assigned Common Vulnerability and Exposure number CVE-2015-0002. When this security bulletin was issued, Microsoft was not aware of attacks that attempt to exploit this vulnerability. - --------------------------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 firstname.lastname@example.org 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: email@example.com 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 iQIVAwUBVLWnjhLndAQH1ShLAQK1PQ/6A9vrKMnHB0wv0Sd32igjg5iwOEPQbjjD 54PwrPG1gQYj/OxxlsGDzljUjDNtWkK5s9Lok+ng4cqaA8p1nvi2K4OJkxhawcj0 RsutckXwQga02f7L7XfrYmuVKq6dWq2SRr+0SJv/sP23X/4C8HNzcClaobMUlSc1 +gqoo5gnIxsHAgQJeqDoJV/TFjhO4lHycusn1WRmalHK3iO2BV/YI5J0DwDdLuHv eHfGAK2aBGhyTY2Xe7iX/V/Q2qC2WBs8agHGAKX92cEeo3t/gCNR0vO88hTRuEiu iu6tdeMf9YSPnGoZwCJ6k4kCZh1fypOk9hQSZTj9GGzggD5wccrv+dIs+6gSrqXe GUKahSCOR9hhFmRr8a6gefFOCcsIbAHsx1vVEEgKAx0Gic2jbxCIiGUFolJwD4VE 8LAm6dis4GOlZm71sEhKuAyWogWNbJgY12wQpKEeFEkOt+bXkWjBuMfcUKuJNYJr mI4J2y7YjbUbPiCtjFXCXcYgpJ/3bSs3sisr/Zn7qOmmGxJ4DAAujFP/GigN+IRy NXS2wy+JprOrJyFr2XRyb3SE3RMS+iv6ndrpQ6rKUbzfReY0RBGxDWp7V8bOOjBs 1ItIOIozLCrWfNvTcs/wIh+LsK/I1VCqiVn0L3LggJuoxoLbYgmgbmkrB31cdNLX wpshMGTOsWM= =YaEV -----END PGP SIGNATURE-----