Hotspot Shield 6.0.3 - Unquoted Service Path Privilege Escalation

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# Exploit Title: Hotspot Shield Unquoted Service Path Privilege Escalation
# Date: 13/10/2016
# Author: Amir.ght
# Vendor Homepage: https://www.hotspotshield.com
# Software Link: https://www.hotspotshield.com/download/
# version : 6.0.3  (Latest)
# Tested on: Windows 7
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Hotspot Shield installs as a service with an unquoted service path
To properly exploit this vulnerability,
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.
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C:\>sc qc hshld
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: hshld
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Program Files\Hotspot Shield\bin\cmw_srv.exe
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : Hotspot Shield Service
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem