Veyon 4.3.4 – ‘VeyonService’ Unquoted Service Path

• Exploit Database
• 12 阅读

• 作者： Víctor García
  日期： 2020-03-24
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/48246/

• # Exploit Title: Veyon 4.3.4 - 'VeyonService' Unquoted Service Path
  # Discovery by: Víctor García
  # Discovery Date: 2020-03-23
  # Vendor Homepage: https://veyon.io/
  # Software Link:
  https://github.com/veyon/veyon/releases/download/v4.3.4/veyon-4.3.4.0-win64-setup.exe
  # Tested Version: 4.3.4
  # Vulnerability Type: Unquoted Service Path
  # Tested on: Windows 10 Pro x64
  
  # 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 """
  Veyon Service VeyonService C:\Program Files\Veyon\veyon-service.exe
  
  
  # Service info:
  
  C:\>sc qc VeyonService
  [SC] QueryServiceConfig SUCCESS
  
  SERVICE_NAME: VeyonService
  TYPE : 10WIN32_OWN_PROCESS
  START_TYPE : 2 AUTO_START
  ERROR_CONTROL: 1 NORMAL
  BINARY_PATH_NAME : C:\Program Files\Veyon\veyon-service.exe
  LOAD_ORDER_GROUP :
  TAG: 0
  DISPLAY_NAME : Veyon Service
  DEPENDENCIES : Tcpip
   : RpcSs
  SERVICE_START_NAME : 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.