OpenVPN Private Tunnel 2.8.4 – ‘ovpnagent’ Unquoted Service Path
# Title: OpenVPN Private Tunnel 2.8.4 - 'ovpnagent' Unquoted Service Path # Author: Sainadh Jamalpur # Date: 2019-10-31 # Vendor Homepage: https://openvpn.net/ # Software Link: https://swupdate.openvpn.org/privatetunnel/client/privatetunnel-win-2.8.exe # Version : PrivateTunnel v2.8.4 # Tested on: Windows 10 64bit(EN) # CVE : N/A # ===================================================== # 1. Description: # Unquoted service paths in OpenVPN Private Tunnel v2.8.4 have an unquoted service path. #PoC =========== C:\>sc qc ovpnagent [SC] QueryServiceConfig SUCCESS SERVICE_NAME: ovpnagent TYPE : 10 WIN32_OWN_PROCESS START_TYPE : 2 AUTO_START ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : C:\Program Files (x86)\OpenVPN Technologies\PrivateTunnel\ovpnagent.exe LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : OpenVPN Agent DEPENDENCIES : SERVICE_START_NAME : LocalSystem C:\> #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. |