mirror of
https://github.com/Av0idD4rk/firegex.git
synced 2026-10-23 21:42:05 +00:00
478 lines
18 KiB
Python
478 lines
18 KiB
Python
#!/usr/bin/env python3
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from utils.colors import colors, puts, sep
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from utils.firegexapi import FiregexAPI
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from utils.tcpserver import TcpServer
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from utils.udpserver import UdpServer
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from utils.tls_helpers import generate_self_signed_cert_key, tls_connect_send_recv
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import argparse
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import secrets
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import base64
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import time
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if __name__ == "__main__":
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parser = argparse.ArgumentParser()
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parser.add_argument(
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"--address",
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"-a",
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type=str,
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required=False,
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help="Address of firegex backend",
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default="http://127.0.0.1:4444/",
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)
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parser.add_argument(
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"--password", "-p", type=str, required=True, help="Firegex password"
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)
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parser.add_argument(
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"--service_name",
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"-n",
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type=str,
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required=False,
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help="Name of the test service",
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default="Test Service",
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)
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parser.add_argument(
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"--port",
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"-P",
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type=int,
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required=False,
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help="Port of the test service",
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default=1337,
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)
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parser.add_argument(
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"--ipv6", "-6", action="store_true", help="Test Ipv6", default=False
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)
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parser.add_argument(
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"--proto",
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"-m",
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type=str,
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required=False,
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choices=["tcp", "udp"],
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help="Select the protocol",
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default="tcp",
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)
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parser.add_argument(
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"--tls", "-t", action="store_true", help="Test TLS Decrypt", default=False
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)
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args = parser.parse_args()
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if args.tls and args.proto != "tcp":
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puts("TLS is only supported with TCP protocol.", color=colors.red)
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exit(1)
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sep()
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puts("Testing will start on ", color=colors.cyan, end="")
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puts(f"{args.address}", color=colors.yellow)
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firegex = FiregexAPI(args.address)
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status = firegex.status()
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if status.get("status") == "init":
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firegex.set_password(args.password)
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# Login
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if firegex.login(args.password):
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puts("Sucessfully logged in ✔", color=colors.green)
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else:
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puts("Test Failed: Unknown response or wrong passowrd ✗", color=colors.red)
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exit(1)
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# Create server. When testing TLS, the backend itself must also speak TLS: nginx's
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# loopback clear_port leg always re-encrypts before forwarding to the real destination
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# (this mirrors a CTF challenge service that natively speaks TLS).
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backend_cert, backend_key = generate_self_signed_cert_key("127.0.0.1") if args.tls else (None, None)
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server = (TcpServer if args.proto == "tcp" else UdpServer)(
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args.port, ipv6=args.ipv6, **({"tls_cert": backend_cert, "tls_key": backend_key} if args.tls else {})
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)
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tls_stream_id = None
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tls_ssl_port = None
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service_id = None
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def exit_test(code):
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if service_id:
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server.stop()
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if firegex.nfregex_delete_service(service_id):
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puts("Sucessfully deleted service ✔", color=colors.green)
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else:
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puts("Test Failed: Coulnd't delete serivce ✗", color=colors.red)
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exit(1)
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if tls_stream_id:
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firegex.tls_stop_stream(tls_stream_id)
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if firegex.tls_delete_stream(tls_stream_id):
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puts("Sucessfully deleted TLS stream ✔", color=colors.green)
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else:
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puts("Test Failed: Couldn't delete TLS stream ✗", color=colors.red)
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exit(1)
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exit(code)
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srvs = firegex.nfregex_get_services()
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for ele in srvs:
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if ele["name"] == args.service_name:
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firegex.nfregex_delete_service(ele["service_id"])
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if args.tls:
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streams = firegex.tls_get_streams()
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for s in streams:
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if s["port"] == args.port:
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firegex.tls_stop_stream(s["id"])
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firegex.tls_delete_stream(s["id"])
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cert, key = generate_self_signed_cert_key("localhost")
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tls_stream_id = firegex.tls_add_stream("TLS Stream", "::1" if args.ipv6 else "127.0.0.1", args.port, cert, key)
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if tls_stream_id:
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puts(f"Sucessfully created TLS stream {tls_stream_id} ✔", color=colors.green)
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else:
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puts("Test Failed: Failed to create TLS stream ✗", color=colors.red)
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exit_test(1)
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if firegex.tls_start_stream(tls_stream_id):
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puts("Sucessfully started TLS stream ✔", color=colors.green)
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else:
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puts("Test Failed: Failed to start TLS stream ✗", color=colors.red)
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exit_test(1)
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tls_ssl_port = firegex.tls_get_stream(tls_stream_id)["ssl_port"]
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service_id = firegex.nfregex_add_service(
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args.service_name, args.port, args.proto, "::1" if args.ipv6 else "127.0.0.1",
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target_type="tls" if args.tls else "flow",
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tls_stream_id=tls_stream_id if args.tls else None
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)
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if service_id:
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puts(f"Sucessfully created service {service_id} ✔", color=colors.green)
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else:
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puts("Test Failed: Failed to create service ✗", color=colors.red)
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exit(1)
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if firegex.nfregex_start_service(service_id):
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puts("Sucessfully started service ✔", color=colors.green)
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else:
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puts("Test Failed: Failed to start service ✗", color=colors.red)
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exit_test(1)
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server.start()
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time.sleep(0.5)
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def send_check(data):
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"""Sends data and checks it was echoed back unmodified. When testing TLS,
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routes through a real TLS handshake against the stream's public ssl_port
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(so the check actually exercises decrypt -> filter -> re-encrypt), instead
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of talking to the backend directly."""
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if args.tls:
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return tls_connect_send_recv(tls_ssl_port, args.ipv6, data) == data
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return server.sendCheckData(data)
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try:
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if send_check(secrets.token_bytes(432)):
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puts("Successfully tested first proxy with no regex ✔", color=colors.green)
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else:
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puts("Test Failed: Data was corrupted ", color=colors.red)
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exit_test(1)
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except Exception:
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puts("Test Failed: Couldn't send data to the server ", color=colors.red)
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exit_test(1)
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# Add new regex
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secret = bytes(secrets.token_hex(16).encode())
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if firegex.nfregex_add_regex(
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service_id, secret, "B", active=True, is_case_sensitive=True
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):
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puts(f"Sucessfully added regex {str(secret)} ✔", color=colors.green)
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else:
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puts(f"Test Failed: Couldn't add the regex {str(secret)} ✗", color=colors.red)
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exit_test(1)
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# Check if regex is present in the service
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n_blocked = 0
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def getMetric(metric_name, regex):
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for metric in firegex.nfregex_get_metrics().split("\n"):
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if metric.startswith(metric_name + "{") and f'regex="{regex}"' in metric:
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return int(metric.split(" ")[-1])
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def checkRegex(regex, should_work=True, upper=False, deleted=False):
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if should_work:
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global n_blocked
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for r in firegex.nfregex_get_service_regexes(service_id):
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if r["regex"] == secret:
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# Test the regex
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s = regex.upper() if upper else regex
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if not send_check(
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secrets.token_bytes(40) + s + secrets.token_bytes(40)
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):
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puts(
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"The malicious request was successfully blocked ✔",
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color=colors.green,
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)
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n_blocked += 1
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time.sleep(1)
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if firegex.nfregex_get_regex(r["id"])["n_packets"] == n_blocked:
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puts(
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"The packet was reported as blocked in the API ✔",
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color=colors.green,
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)
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else:
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puts(
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"Test Failed: The packet wasn't reported as blocked in the API ✗",
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color=colors.red,
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)
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exit_test(1)
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if (
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getMetric("firegex_blocked_packets", secret.decode())
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== n_blocked
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):
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puts(
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"The packet was reported as blocked in the metrics ✔",
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color=colors.green,
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)
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else:
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puts(
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"Test Failed: The packet wasn't reported as blocked in the metrics ✗",
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color=colors.red,
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)
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exit_test(1)
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if getMetric("firegex_active", secret.decode()) == 1:
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puts(
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"The regex was reported as active in the metrics ✔",
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color=colors.green,
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)
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else:
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puts(
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"Test Failed: The regex wasn't reported as active in the metrics ✗",
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color=colors.red,
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)
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exit_test(1)
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else:
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puts(
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"Test Failed: The request wasn't blocked ✗",
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color=colors.red,
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)
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exit_test(1)
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return
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puts("Test Failed: The regex wasn't found ✗", color=colors.red)
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exit_test(1)
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else:
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if send_check(
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secrets.token_bytes(40)
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+ base64.b64decode(regex)
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+ secrets.token_bytes(40)
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):
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puts("The request wasn't blocked ✔", color=colors.green)
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else:
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puts(
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"Test Failed: The request was blocked when it shouldn't have",
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color=colors.red,
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)
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exit_test(1)
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if not deleted:
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if getMetric("firegex_active", secret.decode()) == 0:
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puts(
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"The regex was reported as inactive in the metrics ✔",
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color=colors.green,
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)
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else:
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puts(
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"Test Failed: The regex wasn't reported as inactive in the metrics ✗",
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color=colors.red,
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)
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exit_test(1)
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def clear_regexes():
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global n_blocked
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n_blocked = 0
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for r in firegex.nfregex_get_service_regexes(service_id):
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if r["regex"] == secret:
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if firegex.nfregex_delete_regex(r["id"]):
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puts(
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f"Sucessfully deleted regex with id {r['id']} ✔",
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color=colors.green,
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)
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else:
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puts("Test Failed: Coulnd't delete the regex ✗", color=colors.red)
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exit_test(1)
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break
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if f'regex="{secret.decode()}"' not in firegex.nfregex_get_metrics():
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puts("No regex metrics after deletion ✔", color=colors.green)
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else:
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puts(
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"Test Failed: Metrics found after deleting the regex ✗",
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color=colors.red,
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)
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exit_test(1)
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checkRegex(secret)
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# Pause the proxy
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if firegex.nfregex_stop_service(service_id):
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puts(f"Sucessfully paused service with id {service_id} ✔", color=colors.green)
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else:
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puts("Test Failed: Coulnd't pause the service ✗", color=colors.red)
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exit_test(1)
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# Check if it's actually paused
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checkRegex(secret, should_work=False)
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# Start firewall
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if firegex.nfregex_start_service(service_id):
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puts(f"Sucessfully started service with id {service_id} ✔", color=colors.green)
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else:
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puts("Test Failed: Coulnd't start the service ✗", color=colors.red)
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exit_test(1)
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checkRegex(secret)
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# Disable regex
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for r in firegex.nfregex_get_service_regexes(service_id):
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if r["regex"] == secret:
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if firegex.nfregex_disable_regex(r["id"]):
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puts(
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f"Sucessfully disabled regex with id {r['id']} ✔",
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color=colors.green,
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)
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else:
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puts("Test Failed: Coulnd't disable the regex ✗", color=colors.red)
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exit_test(1)
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break
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# Check if it's actually disabled
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checkRegex(secret, should_work=False)
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# Enable regex
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for r in firegex.nfregex_get_service_regexes(service_id):
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if r["regex"] == secret:
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if firegex.nfregex_enable_regex(r["id"]):
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puts(
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f"Sucessfully enabled regex with id {r['id']} ✔", color=colors.green
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)
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else:
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puts("Test Failed: Coulnd't enable the regex ✗", color=colors.red)
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exit_test(1)
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break
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checkRegex(secret)
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# Delete regex
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clear_regexes()
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# Check if it's actually deleted
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checkRegex(secret, should_work=False, deleted=True)
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# Add case insensitive regex
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if firegex.nfregex_add_regex(
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service_id, secret, "B", active=True, is_case_sensitive=False
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):
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puts(
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f"Sucessfully added case insensitive regex {str(secret)} ✔",
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color=colors.green,
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)
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else:
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puts(
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f"Test Failed: Coulnd't add the case insensitive regex {str(secret)} ✗",
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color=colors.red,
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)
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exit_test(1)
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checkRegex(secret, upper=True)
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checkRegex(secret)
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clear_regexes()
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# Rename service
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if firegex.nfregex_rename_service(service_id, f"{args.service_name}2"):
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puts(
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f"Sucessfully renamed service to {args.service_name}2 ✔", color=colors.green
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)
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else:
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puts("Test Failed: Coulnd't rename service ✗", color=colors.red)
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exit_test(1)
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# Check if service was renamed correctly
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service = firegex.nfregex_get_service(service_id)
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if service["name"] == f"{args.service_name}2":
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puts("Checked that service was renamed correctly ✔", color=colors.green)
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else:
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puts("Test Failed: Service wasn't renamed correctly ✗", color=colors.red)
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exit_test(1)
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# Rename back service
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if firegex.nfregex_rename_service(service_id, f"{args.service_name}"):
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puts(
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f"Sucessfully renamed service to {args.service_name} ✔", color=colors.green
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)
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else:
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puts("Test Failed: Coulnd't rename service ✗", color=colors.red)
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exit_test(1)
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# Change settings (skipped in --tls mode: the service's own port/ip/proto no longer
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# drive traffic interception once linked to a TLS stream, see resolve_target())
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if not args.tls:
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opposite_proto = "udp" if args.proto == "tcp" else "tcp"
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if firegex.nfregex_settings_service(
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service_id,
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1338,
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"::dead:beef" if args.ipv6 else "123.123.123.123",
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True,
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proto=opposite_proto,
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):
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srv_updated = firegex.nfregex_get_service(service_id)
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if (
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srv_updated["port"] == 1338
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and srv_updated["proto"] == opposite_proto
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and ("::dead:beef" if args.ipv6 else "123.123.123.123")
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in srv_updated["ip_int"]
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and srv_updated["fail_open"]
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):
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puts("Sucessfully changed service settings ✔", color=colors.green)
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else:
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puts(
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"Test Failed: Service settings weren't updated correctly ✗",
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color=colors.red,
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)
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exit_test(1)
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else:
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puts("Test Failed: Coulnd't change service settings ✗", color=colors.red)
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exit_test(1)
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if args.tls:
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# Stopping the TLS stream should cascade-stop the dependent service
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if firegex.tls_stop_stream(tls_stream_id):
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time.sleep(1)
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srv_after_stop = firegex.nfregex_get_service(service_id)
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if srv_after_stop["status"] == "stop":
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puts("TLS stream stop correctly cascaded to stop the dependent service ✔", color=colors.green)
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else:
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puts("Test Failed: Dependent service wasn't cascade-stopped ✗", color=colors.red)
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exit_test(1)
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else:
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puts("Test Failed: Coulnd't stop the TLS stream ✗", color=colors.red)
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exit_test(1)
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# Starting the dependent service should cascade-reactivate the TLS stream
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if firegex.nfregex_start_service(service_id):
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time.sleep(1)
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stream_after_start = firegex.tls_get_stream(tls_stream_id)
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if stream_after_start["status"] == "active":
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puts("Starting the service correctly cascaded to reactivate the TLS stream ✔", color=colors.green)
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else:
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puts("Test Failed: TLS stream wasn't cascade-reactivated ✗", color=colors.red)
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exit_test(1)
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else:
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puts("Test Failed: Coulnd't start the service ✗", color=colors.red)
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exit_test(1)
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if send_check(secrets.token_bytes(64)):
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puts("Traffic flows correctly after the cascade reactivation ✔", color=colors.green)
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else:
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puts("Test Failed: Traffic didn't flow correctly after the cascade reactivation ✗", color=colors.red)
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exit_test(1)
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# Deleting a still-referenced TLS stream must be rejected
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if not firegex.tls_delete_stream(tls_stream_id):
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puts("Correctly rejected deletion of a TLS stream still in use ✔", color=colors.green)
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else:
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puts("Test Failed: Deleting an in-use TLS stream should have failed ✗", color=colors.red)
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exit_test(1)
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exit_test(0)
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