Droid4X Privilege Escalation

`# Exploit Title: Droid4X Unquoted Service Path Privilege Escalation  
# Date: 03/10/2016  
# Author: Yunus YILDIRIM (Th3GundY)  
# Team: CT-Zer0 (@CRYPTTECH) && Superbug (@xsuperbug)  
# Website: http://yildirimyunus.com  
# Contact: [email protected]  
# Category: local  
# Vendor Homepage: http://www.droid4x.com/  
# Software Link: http://dl.haima.me/download/DXDown/win/Z001/Droid4XInstaller.exe  
# Tested on: Windows 7 x86/x64  
  
1. Description  
  
Droid4XService (Droid4XService.exe) installs as a service with   
an unquoted service path running with SYSTEM privileges.  
This could potentially allow an authorized but non-privileged local  
user to execute arbitrary code with elevated privileges on the system.  
  
  
2. Proof of Concept  
  
C:\Windows\system32>sc qc Droid4XService  
[SC] QueryServiceConfig SUCCESS  
SERVICE_NAME: Droid4XService  
TYPE : 110 WIN32_OWN_PROCESS (interactive)  
START_TYPE : 2 AUTO_START  
ERROR_CONTROL : 1 NORMAL  
BINARY_PATH_NAME : C:\Program Files (x86)\Droid4X\Droid4XService.exe  
LOAD_ORDER_GROUP :  
TAG : 0  
DISPLAY_NAME : Droid4XService  
DEPENDENCIES :  
SERVICE_START_NAME : LocalSystem  
  
  
3. Exploit:  
  
A successful attempt would require the local attacker must insert an executable file  
in the path of the service.  
Upon service restart or system reboot, the malicious code will be run with elevated privileges.  
  
  
Vulnerability Disclosure Timeline:  
==================================  
03/10/2016 - Contact With Vendor  
27/10/2016 - No Response From Vendor  
09/11/2016 - Public Disclosure  
`