Telefonica O2 Connection Manager 8.7 Service Trusted Path Privilege Escalation

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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:\>  
  
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