ASLDRService ATK Hotkey 1.0.69.0 - Unquoted Service Path Privilege Escalation

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# Exploit Title:   ASLDRService ATK Hotkey- Privilege Escalation Unquoted Service Path
# Date: 13/10/2016
# Exploit Author : Cyril Vallicari
# Vendor Homepage: www.asus.com
# Version:  1.0.69.0
# Tested on: Windows 7 x64 SP1 (but it should works on all windows version)
 
The application suffers from an unquoted service path issue impacting the service 'ASLDRService' deployed as part of ATK Hotkey
This could potentially allow an authorized but non-privileged local user to execute arbitrary code witystem privileges on the system.
 
POC :
 
 
C:\Users\Utilisateur>sc qc ASLDRService
[SC] QueryServiceConfig réussite(s)

SERVICE_NAME: ASLDRService
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Program Files (x86)\ASUS\ATK Package\ATK Hotkey\ASLDRSrv.exe
        LOAD_ORDER_GROUP   : ShellSvcGroup
        TAG                : 0
        DISPLAY_NAME       : ASLDR Service
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem


Additional notes :

https://hackerone.com/blog/asus-vulnerability-disclosure-deja-vu