Emerson PAC Machine Edition 9.70 Build 8595 - 'FxControlRuntime' Unquoted Service Path

vendor:

PAC Machine Edition

by:

Luis Martinez

7.8

CVSS

HIGH

Unquoted Service Path

426

CWE

Product Name: PAC Machine Edition

Affected Version From: 9.70 Build 8595

Affected Version To: 9.70 Build 8595

Patch Exists: NO

Related CWE: N/A

CPE: a:emerson:pac_machine_edition:9.70_build_8595

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Windows 10 Pro x64 es

2019

Emerson PAC Machine Edition 9.70 Build 8595 – ‘FxControlRuntime’ Unquoted Service Path

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.

Mitigation:

Ensure that all services have a fully qualified path to the executable, and that the path is properly quoted.

Source

Exploit-DB raw data:

# 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.