Wondershare PDFelement 5.2.9 - Unquoted Service Path Privilege Escalation

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# Exploit Title: Wondershare PDFelement Unquoted Service Path Privilege
Escalation
# Date: 10/14/2016
# Author: Saeed Hasanzadeh (Net.Hun73r)
# Vendor Homepage: https://www.wondershare.com/
# Software Link:
http://download.wondershare.com/inst/pdfelement_setup_full1042.exe
#version : 5.2.9
# Tested on: Windows 7
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Wondershare PDFelement installs 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 WsAppService
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: WsAppService
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Program Files\Wondershare\WAF\2.2.3.2\WsAppService.exe
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : Wondershare Application Framework Service
        DEPENDENCIES       : RPCSS
        SERVICE_START_NAME : LocalSystem