Idt pc audio 1.0.6499.0 stacsv unquoted service path Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2020-12-04 | Type : local | Platform : windows
This exploit / vulnerability Idt pc audio 1.0.6499.0 stacsv unquoted service path is for educational purposes only and if it is used you will do on your own risk!

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# Exploit Title: IDT PC Audio 1.0.6499.0 - 'STacSV' Unquoted Service Path
# Discovery by: Diego Cañada
# Software link: https://www.pconlife.com/download/otherfile/20566/90674cffc8658c4f2bf58d43bb9b7ccb/
# Discovery Date: 2020-12-03
# Tested Version: 1.0.6499.0
# Vulnerability Type: Unquoted Service Path
# Tested on OS: Windows 10 Home Single Language x64 ES

# Step to discover Unquoted Service Path:

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

Audio service STacSV c:\Program Files\IDT\WDM\STacSV64.exe Auto

# Service info:

C:\>sc qc StacSV
[SC] QueryServiceConfig CORRECTO

NOMBRE_SERVICIO: StacSV
TIPO : 10 WIN32_OWN_PROCESS
TIPO_INICIO : 2 AUTO_START
CONTROL_ERROR : 1 NORMAL
NOMBRE_RUTA_BINARIO: C:\Program Files\IDT\WDM\STacSV64.exe
GRUPO_ORDEN_CARGA : AudioGroup
ETIQUETA : 0
NOMBRE_MOSTRAR : Audio Service
DEPENDENCIAS :
NOMBRE_INICIO_SERVICIO: 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.