Telefonica O2 Connection Manager 8.7 Service Trusted Path Privilege Escalation Vendor: Telefonica S.A. Product web page: http://www.telefonica.com | http://www.o2.co.uk Affected version: 8.7.6.792 Summary: O2 Connection Manager will help you to manage your internet connections by getting you connected to the fastest available network. Automatically connect you to the fastest available network including your home broadband if you have a wireless router. Desc: The O2 Connection Manager's service suffers from an unquoted search path issue impacting the Import WiFi 'TGCM_ImportWiFiSvc' service for Windows. This could potentially allow an authorized but non-privileged local user to execute arbitrary code with elevated privileges on the system. A successful attempt would require the local user to be able to insert their code in the system root path undetected by the OS or other security applications where it could potentially be executed during application startup or reboot. If successful, the local user’s code would execute with the elevated privileges of the application. Tested on: Microsoft Windows 7 Professional SP1 (EN) Microsoft Windows 7 Ultimate SP1 (EN) Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2014-5200 Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5200.php 22.09.2014 --- C:\>sc qc TGCM_ImportWiFiSvc [SC] QueryServiceConfig SUCCESS SERVICE_NAME: TGCM_ImportWiFiSvc TYPE : 10 WIN32_OWN_PROCESS START_TYPE : 2 AUTO_START ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : C:\Program Files (x86)\O2\Connection Manager\ImpWiFiSvc.exe LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : TGCM_ImportWiFiSvc DEPENDENCIES : SERVICE_START_NAME : LocalSystem C:\>icacls "C:\Program Files (x86)\O2\Connection Manager\ImpWiFiSvc.exe" C:\Program Files (x86)\O2\Connection Manager\ImpWiFiSvc.exe NT AUTHORITY\SYSTEM:(I)(F) BUILTIN\Administrators:(I)(F) BUILTIN\Users:(I)(RX) Successfully processed 1 files; Failed processing 0 files C:\> ---