# EAP Re-authentication Protocol (ERP) tests # Copyright (c) 2014-2015, Jouni Malinen # # This software may be distributed under the terms of the BSD license. # See README for more details. import binascii import logging logger = logging.getLogger() import os import time import hostapd from utils import HwsimSkip, alloc_fail, wait_fail_trigger from test_ap_eap import int_eap_server_params from test_ap_psk import find_wpas_process, read_process_memory, verify_not_present, get_key_locations def check_erp_capa(dev): capab = dev.get_capability("erp") if not capab or 'ERP' not in capab: raise HwsimSkip("ERP not supported in the build") def test_erp_initiate_reauth_start(dev, apdev): """Authenticator sending EAP-Initiate/Re-auth-Start, but ERP disabled on peer""" params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap") params['erp_send_reauth_start'] = '1' params['erp_domain'] = 'example.com' hapd = hostapd.add_ap(apdev[0]['ifname'], params) dev[0].request("ERP_FLUSH") dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="PAX", identity="pax.user@example.com", password_hex="0123456789abcdef0123456789abcdef", scan_freq="2412") def test_erp_enabled_on_server(dev, apdev): """ERP enabled on internal EAP server, but disabled on peer""" params = int_eap_server_params() params['erp_send_reauth_start'] = '1' params['erp_domain'] = 'example.com' params['eap_server_erp'] = '1' hapd = hostapd.add_ap(apdev[0]['ifname'], params) dev[0].request("ERP_FLUSH") dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="PAX", identity="pax.user@example.com", password_hex="0123456789abcdef0123456789abcdef", scan_freq="2412") def test_erp(dev, apdev): """ERP enabled on server and peer""" check_erp_capa(dev[0]) params = int_eap_server_params() params['erp_send_reauth_start'] = '1' params['erp_domain'] = 'example.com' params['eap_server_erp'] = '1' params['disable_pmksa_caching'] = '1' hapd = hostapd.add_ap(apdev[0]['ifname'], params) dev[0].request("ERP_FLUSH") dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="PSK", identity="psk.user@example.com", password_hex="0123456789abcdef0123456789abcdef", erp="1", scan_freq="2412") for i in range(3): dev[0].request("DISCONNECT") dev[0].wait_disconnected(timeout=15) dev[0].request("RECONNECT") ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15) if ev is None: raise Exception("EAP success timed out") if "EAP re-authentication completed successfully" not in ev: raise Exception("Did not use ERP") dev[0].wait_connected(timeout=15, error="Reconnection timed out") def test_erp_server_no_match(dev, apdev): """ERP enabled on server and peer, but server has no key match""" check_erp_capa(dev[0]) params = int_eap_server_params() params['erp_send_reauth_start'] = '1' params['erp_domain'] = 'example.com' params['eap_server_erp'] = '1' params['disable_pmksa_caching'] = '1' hapd = hostapd.add_ap(apdev[0]['ifname'], params) dev[0].request("ERP_FLUSH") id = dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="PSK", identity="psk.user@example.com", password_hex="0123456789abcdef0123456789abcdef", erp="1", scan_freq="2412") dev[0].request("DISCONNECT") dev[0].wait_disconnected(timeout=15) hapd.request("ERP_FLUSH") dev[0].request("RECONNECT") ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS", "CTRL-EVENT-EAP-FAILURE"], timeout=15) if ev is None: raise Exception("EAP result timed out") if "CTRL-EVENT-EAP-SUCCESS" in ev: raise Exception("Unexpected EAP success") dev[0].request("DISCONNECT") dev[0].select_network(id) ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15) if ev is None: raise Exception("EAP success timed out") if "EAP re-authentication completed successfully" in ev: raise Exception("Unexpected use of ERP") dev[0].wait_connected(timeout=15, error="Reconnection timed out") def start_erp_as(apdev): params = { "ssid": "as", "beacon_int": "2000", "radius_server_clients": "auth_serv/radius_clients.conf", "radius_server_auth_port": '18128', "eap_server": "1", "eap_user_file": "auth_serv/eap_user.conf", "ca_cert": "auth_serv/ca.pem", "server_cert": "auth_serv/server.pem", "private_key": "auth_serv/server.key", "eap_sim_db": "unix:/tmp/hlr_auc_gw.sock", "dh_file": "auth_serv/dh.conf", "pac_opaque_encr_key": "000102030405060708090a0b0c0d0e0f", "eap_fast_a_id": "101112131415161718191a1b1c1d1e1f", "eap_fast_a_id_info": "test server", "eap_server_erp": "1", "erp_domain": "example.com" } hostapd.add_ap(apdev['ifname'], params) def test_erp_radius(dev, apdev): """ERP enabled on RADIUS server and peer""" check_erp_capa(dev[0]) start_erp_as(apdev[1]) params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap") params['auth_server_port'] = "18128" params['erp_send_reauth_start'] = '1' params['erp_domain'] = 'example.com' params['disable_pmksa_caching'] = '1' hapd = hostapd.add_ap(apdev[0]['ifname'], params) dev[0].request("ERP_FLUSH") dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="PSK", identity="psk.user@example.com", password_hex="0123456789abcdef0123456789abcdef", erp="1", scan_freq="2412") for i in range(3): dev[0].request("DISCONNECT") dev[0].wait_disconnected(timeout=15) dev[0].request("RECONNECT") ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15) if ev is None: raise Exception("EAP success timed out") if "EAP re-authentication completed successfully" not in ev: raise Exception("Did not use ERP") dev[0].wait_connected(timeout=15, error="Reconnection timed out") def erp_test(dev, hapd, **kwargs): res = dev.get_capability("eap") if kwargs['eap'] not in res: logger.info("Skip ERP test with %s due to missing support" % kwargs['eap']) return hapd.dump_monitor() dev.dump_monitor() dev.request("ERP_FLUSH") id = dev.connect("test-wpa2-eap", key_mgmt="WPA-EAP", erp="1", scan_freq="2412", **kwargs) dev.request("DISCONNECT") dev.wait_disconnected(timeout=15) hapd.dump_monitor() dev.request("RECONNECT") ev = dev.wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15) if ev is None: raise Exception("EAP success timed out") if "EAP re-authentication completed successfully" not in ev: raise Exception("Did not use ERP") dev.wait_connected(timeout=15, error="Reconnection timed out") ev = hapd.wait_event([ "AP-STA-CONNECTED" ], timeout=5) if ev is None: raise Exception("No connection event received from hostapd") dev.request("DISCONNECT") def test_erp_radius_eap_methods(dev, apdev): """ERP enabled on RADIUS server and peer""" check_erp_capa(dev[0]) eap_methods = dev[0].get_capability("eap") start_erp_as(apdev[1]) params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap") params['auth_server_port'] = "18128" params['erp_send_reauth_start'] = '1' params['erp_domain'] = 'example.com' params['disable_pmksa_caching'] = '1' hapd = hostapd.add_ap(apdev[0]['ifname'], params) erp_test(dev[0], hapd, eap="AKA", identity="0232010000000000@example.com", password="90dca4eda45b53cf0f12d7c9c3bc6a89:cb9cccc4b9258e6dca4760379fb82581:000000000123") erp_test(dev[0], hapd, eap="AKA'", identity="6555444333222111@example.com", password="5122250214c33e723a5dd523fc145fc0:981d464c7c52eb6e5036234984ad0bcf:000000000123") erp_test(dev[0], hapd, eap="EKE", identity="erp-eke@example.com", password="hello") if "FAST" in eap_methods: erp_test(dev[0], hapd, eap="FAST", identity="erp-fast@example.com", password="password", ca_cert="auth_serv/ca.pem", phase2="auth=GTC", phase1="fast_provisioning=2", pac_file="blob://fast_pac_auth_erp") erp_test(dev[0], hapd, eap="GPSK", identity="erp-gpsk@example.com", password="abcdefghijklmnop0123456789abcdef") erp_test(dev[0], hapd, eap="IKEV2", identity="erp-ikev2@example.com", password="password") erp_test(dev[0], hapd, eap="PAX", identity="erp-pax@example.com", password_hex="0123456789abcdef0123456789abcdef") # TODO: PEAP (EMSK) #if "MSCHAPV2" in eap_methods: # erp_test(dev[0], hapd, eap="PEAP", identity="erp-peap@example.com", # password="password", ca_cert="auth_serv/ca.pem", # phase2="auth=MSCHAPV2") erp_test(dev[0], hapd, eap="PSK", identity="erp-psk@example.com", password_hex="0123456789abcdef0123456789abcdef") if "PWD" in eap_methods: erp_test(dev[0], hapd, eap="PWD", identity="erp-pwd@example.com", password="secret password") erp_test(dev[0], hapd, eap="SAKE", identity="erp-sake@example.com", password_hex="0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef") erp_test(dev[0], hapd, eap="SIM", identity="1232010000000000@example.com", password="90dca4eda45b53cf0f12d7c9c3bc6a89:cb9cccc4b9258e6dca4760379fb82581") erp_test(dev[0], hapd, eap="TLS", identity="erp-tls@example.com", ca_cert="auth_serv/ca.pem", client_cert="auth_serv/user.pem", private_key="auth_serv/user.key") erp_test(dev[0], hapd, eap="TTLS", identity="erp-ttls@example.com", password="password", ca_cert="auth_serv/ca.pem", phase2="auth=PAP") def test_erp_key_lifetime_in_memory(dev, apdev, params): """ERP and key lifetime in memory""" check_erp_capa(dev[0]) p = int_eap_server_params() p['erp_send_reauth_start'] = '1' p['erp_domain'] = 'example.com' p['eap_server_erp'] = '1' p['disable_pmksa_caching'] = '1' hapd = hostapd.add_ap(apdev[0]['ifname'], p) password = "63d2d21ac3c09ed567ee004a34490f1d16e7fa5835edf17ddba70a63f1a90a25" pid = find_wpas_process(dev[0]) dev[0].request("ERP_FLUSH") dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="TTLS", identity="pap-secret@example.com", password=password, ca_cert="auth_serv/ca.pem", phase2="auth=PAP", erp="1", scan_freq="2412") # The decrypted copy of GTK is freed only after the CTRL-EVENT-CONNECTED # event has been delivered, so verify that wpa_supplicant has returned to # eloop before reading process memory. time.sleep(1) dev[0].ping() buf = read_process_memory(pid, password) dev[0].request("DISCONNECT") dev[0].wait_disconnected(timeout=15) dev[0].relog() msk = None emsk = None rRK = None rIK = None pmk = None ptk = None gtk = None with open(os.path.join(params['logdir'], 'log0'), 'r') as f: for l in f.readlines(): if "EAP-TTLS: Derived key - hexdump" in l: val = l.strip().split(':')[3].replace(' ', '') msk = binascii.unhexlify(val) if "EAP-TTLS: Derived EMSK - hexdump" in l: val = l.strip().split(':')[3].replace(' ', '') emsk = binascii.unhexlify(val) if "EAP: ERP rRK - hexdump" in l: val = l.strip().split(':')[3].replace(' ', '') rRK = binascii.unhexlify(val) if "EAP: ERP rIK - hexdump" in l: val = l.strip().split(':')[3].replace(' ', '') rIK = binascii.unhexlify(val) if "WPA: PMK - hexdump" in l: val = l.strip().split(':')[3].replace(' ', '') pmk = binascii.unhexlify(val) if "WPA: PTK - hexdump" in l: val = l.strip().split(':')[3].replace(' ', '') ptk = binascii.unhexlify(val) if "WPA: Group Key - hexdump" in l: val = l.strip().split(':')[3].replace(' ', '') gtk = binascii.unhexlify(val) if not msk or not emsk or not rIK or not rRK or not pmk or not ptk or not gtk: raise Exception("Could not find keys from debug log") if len(gtk) != 16: raise Exception("Unexpected GTK length") kck = ptk[0:16] kek = ptk[16:32] tk = ptk[32:48] fname = os.path.join(params['logdir'], 'erp_key_lifetime_in_memory.memctx-') logger.info("Checking keys in memory while associated") get_key_locations(buf, password, "Password") get_key_locations(buf, pmk, "PMK") get_key_locations(buf, msk, "MSK") get_key_locations(buf, emsk, "EMSK") get_key_locations(buf, rRK, "rRK") get_key_locations(buf, rIK, "rIK") if password not in buf: raise HwsimSkip("Password not found while associated") if pmk not in buf: raise HwsimSkip("PMK not found while associated") if kck not in buf: raise Exception("KCK not found while associated") if kek not in buf: raise Exception("KEK not found while associated") if tk in buf: raise Exception("TK found from memory") if gtk in buf: get_key_locations(buf, gtk, "GTK") raise Exception("GTK found from memory") logger.info("Checking keys in memory after disassociation") buf = read_process_memory(pid, password) # Note: Password is still present in network configuration # Note: PMK is in EAP fast re-auth data get_key_locations(buf, password, "Password") get_key_locations(buf, pmk, "PMK") get_key_locations(buf, msk, "MSK") get_key_locations(buf, emsk, "EMSK") get_key_locations(buf, rRK, "rRK") get_key_locations(buf, rIK, "rIK") verify_not_present(buf, kck, fname, "KCK") verify_not_present(buf, kek, fname, "KEK") verify_not_present(buf, tk, fname, "TK") verify_not_present(buf, gtk, fname, "GTK") dev[0].request("RECONNECT") ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15) if ev is None: raise Exception("EAP success timed out") if "EAP re-authentication completed successfully" not in ev: raise Exception("Did not use ERP") dev[0].wait_connected(timeout=15, error="Reconnection timed out") dev[0].request("DISCONNECT") dev[0].wait_disconnected(timeout=15) dev[0].relog() pmk = None ptk = None gtk = None with open(os.path.join(params['logdir'], 'log0'), 'r') as f: for l in f.readlines(): if "WPA: PMK - hexdump" in l: val = l.strip().split(':')[3].replace(' ', '') pmk = binascii.unhexlify(val) if "WPA: PTK - hexdump" in l: val = l.strip().split(':')[3].replace(' ', '') ptk = binascii.unhexlify(val) if "WPA: GTK in EAPOL-Key - hexdump" in l: val = l.strip().split(':')[3].replace(' ', '') gtk = binascii.unhexlify(val) if not pmk or not ptk or not gtk: raise Exception("Could not find keys from debug log") kck = ptk[0:16] kek = ptk[16:32] tk = ptk[32:48] logger.info("Checking keys in memory after ERP and disassociation") buf = read_process_memory(pid, password) # Note: Password is still present in network configuration get_key_locations(buf, password, "Password") get_key_locations(buf, pmk, "PMK") get_key_locations(buf, msk, "MSK") get_key_locations(buf, emsk, "EMSK") get_key_locations(buf, rRK, "rRK") get_key_locations(buf, rIK, "rIK") verify_not_present(buf, kck, fname, "KCK") verify_not_present(buf, kek, fname, "KEK") verify_not_present(buf, tk, fname, "TK") verify_not_present(buf, gtk, fname, "GTK") dev[0].request("REMOVE_NETWORK all") logger.info("Checking keys in memory after network profile removal") buf = read_process_memory(pid, password) # Note: rRK and rIK are still in memory get_key_locations(buf, password, "Password") get_key_locations(buf, pmk, "PMK") get_key_locations(buf, msk, "MSK") get_key_locations(buf, emsk, "EMSK") get_key_locations(buf, rRK, "rRK") get_key_locations(buf, rIK, "rIK") verify_not_present(buf, password, fname, "password") verify_not_present(buf, pmk, fname, "PMK") verify_not_present(buf, kck, fname, "KCK") verify_not_present(buf, kek, fname, "KEK") verify_not_present(buf, tk, fname, "TK") verify_not_present(buf, gtk, fname, "GTK") verify_not_present(buf, msk, fname, "MSK") verify_not_present(buf, emsk, fname, "EMSK") dev[0].request("ERP_FLUSH") logger.info("Checking keys in memory after ERP_FLUSH") buf = read_process_memory(pid, password) get_key_locations(buf, rRK, "rRK") get_key_locations(buf, rIK, "rIK") verify_not_present(buf, rRK, fname, "rRK") verify_not_present(buf, rIK, fname, "rIK") def test_erp_anonymous_identity(dev, apdev): """ERP and anonymous identity""" check_erp_capa(dev[0]) params = int_eap_server_params() params['erp_send_reauth_start'] = '1' params['erp_domain'] = 'example.com' params['eap_server_erp'] = '1' params['disable_pmksa_caching'] = '1' hapd = hostapd.add_ap(apdev[0]['ifname'], params) dev[0].request("ERP_FLUSH") dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="TTLS", identity="erp-ttls@example.com", anonymous_identity="anonymous@example.com", password="password", ca_cert="auth_serv/ca.pem", phase2="auth=PAP", erp="1", scan_freq="2412") for i in range(3): dev[0].request("DISCONNECT") dev[0].wait_disconnected(timeout=15) dev[0].request("RECONNECT") ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15) if ev is None: raise Exception("EAP success timed out") if "EAP re-authentication completed successfully" not in ev: raise Exception("Did not use ERP") dev[0].wait_connected(timeout=15, error="Reconnection timed out") def test_erp_home_realm_oom(dev, apdev): """ERP and home realm OOM""" check_erp_capa(dev[0]) params = int_eap_server_params() params['erp_send_reauth_start'] = '1' params['erp_domain'] = 'example.com' params['eap_server_erp'] = '1' params['disable_pmksa_caching'] = '1' hapd = hostapd.add_ap(apdev[0]['ifname'], params) for count in range(1, 3): with alloc_fail(dev[0], count, "eap_home_realm"): dev[0].request("ERP_FLUSH") dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="TTLS", identity="erp-ttls@example.com", anonymous_identity="anonymous@example.com", password="password", ca_cert="auth_serv/ca.pem", phase2="auth=PAP", erp="1", scan_freq="2412", wait_connect=False) dev[0].wait_connected(timeout=10) wait_fail_trigger(dev[0], "GET_ALLOC_FAIL") dev[0].request("REMOVE_NETWORK all") dev[0].wait_disconnected() for count in range(1, 3): dev[0].request("ERP_FLUSH") dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="TTLS", identity="erp-ttls@example.com", anonymous_identity="anonymous@example.com", password="password", ca_cert="auth_serv/ca.pem", phase2="auth=PAP", erp="1", scan_freq="2412", wait_connect=False) dev[0].wait_connected(timeout=10) if range > 1: continue with alloc_fail(dev[0], count, "eap_home_realm"): dev[0].request("DISCONNECT") dev[0].wait_disconnected(timeout=15) dev[0].request("RECONNECT") wait_fail_trigger(dev[0], "GET_ALLOC_FAIL") dev[0].request("REMOVE_NETWORK all") dev[0].wait_disconnected()