==================================================================== CERT-Renater Note d'Information No. 2015/VULN179 _____________________________________________________________________ DATE : 09/09/2015 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Windows version Vista, 7, 8, 8.1, 10, RT, Server 2008, Server 2012. ====================================================================== KB3089657 https://technet.microsoft.com/en-us/library/security/MS15-102 ______________________________________________________________________ Microsoft Security Bulletin MS15-102: Important Vulnerabilities in Windows Task Management Could Allow Elevation of Privilege (3089657) Bulletin Number: MS15-102 Bulletin Title: Vulnerabilities in Windows Task Management Could Allow Elevation of Privilege Severity: Important KB Article: 3089657 Version: 1.0 Published Date: September 8, 2015 Executive Summary This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logs on to a system and runs a specially crafted application. This security update is rated Important for all supported releases of Microsoft Windows. For more information, see the Affected Software section. Affected Software Windows Vista 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 10 for 32-bit Systems[2] Windows 10 for x64-based Systems[2] Server Core installation option 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) [1]The security updates for Windows RT operating systems are available via Windows Update only. [2]The Windows 10 update is cumulative. In addition to containing non-security updates, it also contains all of the security fixes for all of the Windows 10-affected vulnerabilities shipping with this months security release. See Microsoft Knowledge Base Article 3081455 for more information and download links. Vulnerability Information Windows Task Management Elevation of Privilege Vulnerability - CVE-2015-2524 An elevation of privilege vulnerability exists when Microsoft Windows fails to properly validate and enforce impersonation levels. An attacker who successfully exploited this vulnerability could bypass impersonation-level security checks and gain elevated privileges on a targeted system. To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application designed to increase privileges. The security update addresses the vulnerability by correcting how Windows validates impersonation events. Microsoft received information about this vulnerability through coordinated vulnerability disclosure. When this security bulletin was originally issued, Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers. Windows Task File Deletion Elevation of Privilege Vulnerability - CVE-2015-2525 An elevation of privilege vulnerability exists in Windows Task Scheduler when it improperly verifies certain file system interactions. An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the local system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take complete control over an affected system. The security update addresses the vulnerability by correcting how Task Scheduler verifies file system interactions. Microsoft received information about this vulnerability through coordinated vulnerability disclosure. When this security bulletin was originally issued, Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers. Windows Task Management Elevation of Privilege Vulnerability - CVE-2015-2528 An elevation of privilege vulnerability exists when Microsoft Windows fails to properly validate and enforce impersonation levels. An attacker who successfully exploited this vulnerability could bypass impersonation-level security checks and gain elevated privileges on a targeted system. To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application designed to increase privileges. The security update addresses the vulnerability by correcting how Windows validates impersonation events. Microsoft received information about this vulnerability through coordinated vulnerability disclosure. When this security bulletin was originally issued, Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers. ========================================================= Serveur de référence du CERT-Renater https://services.renater.fr/ssi/ ========================================================== + CERT-RENATER | tel : 01-53-94-20-44 + + 23 - 25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email: cert@support.renater.fr + ==========================================================