Fortitude HTTP 1.0.4.0 – Unquoted Service Path Privilege Escalation
# Exploit Title: Fortitude HTTP 1.0.4.0 Unquoted Service Path Elevation of Privilege # Date: 05/10/2016 # Exploit Author: Tulpa # Contact: tulpa@tulpa-security.com # Author website: www.tulpa-security.com # Author twitter: @tulpa_security # Vendor Homepage: http://www.networkdls.com/ # Software Link: http://www.networkdls.com/Software/View/Fortitude_HTTP # Version: Software Version 1.0.4.0 # Tested on: Windows 7 x86 # Shout-out to carbonated and ozzie_offsec 1. Description: Netgear Genie installs a service called 'Fortitude HTTP' with an unquoted service path running with SYSTEM privileges. This could potentially allow an authorized but non-privileged local user to execute arbitrary code with elevated privileges on the system. 2. Proof C:\Program Files>sc qc "Fortitude HTTP" [SC] QueryServiceConfig SUCCESS SERVICE_NAME: Fortitude HTTP TYPE : 110 WIN32_OWN_PROCESS (interactive) START_TYPE : 2 AUTO_START ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : C:\Program Files\NetworkDLS\Fortitude HTTP\Bin \FortitudeSvc.exe /RunService LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : NetworkDLS Fortitude HTTP DEPENDENCIES : SERVICE_START_NAME : LocalSystem 3. Exploit: 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. |