# Date: 2021-06-21
# Exploit Author: Julio Aviña
# Vendor Homepage: https://www.asus.com/
# Software Link: https://dlcdnets.asus.com/pub/ASUS/LCD%20Monitors/MB16ACE/ASUS_DisplayWidget_3.4.0.036.exe.zip
# Version: 3.4.0.036
# Service File Version 1.0.0.1
# 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 "%ASUSDisplayWidgetService%"' get displayname, pathname, startmode, startname
DisplayName PathName StartMode StartName
ASUS DisplayWidget Service by Portrait Displays C:\Program
Files\Portrait Displays\ASUS DisplayWidget\DisplayWidgetService.exe
Auto LocalSystem
# 2. To check service info:
C:\>sc qc "ASUSDisplayWidgetService"
[SC] QueryServiceConfig CORRECTO
NOMBRE_SERVICIO: ASUSDisplayWidgetService
TIPO : 10 WIN32_OWN_PROCESS
TIPO_INICIO : 2 AUTO_START
CONTROL_ERROR : 1 NORMAL
NOMBRE_RUTA_BINARIO: C:\Program Files\Portrait Displays\ASUS
DisplayWidget\DisplayWidgetService.exe
GRUPO_ORDEN_CARGA :
ETIQUETA : 0
NOMBRE_MOSTRAR : ASUS DisplayWidget Service by Portrait
Displays
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.
