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fragattacks/tests/hwsim/test_ap_pmf.py
Jouni Malinen fde35be9b1 tests: WPA2-PSK AP with PMF required and PMF disabled on STA 
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-10-25 19:37:17 +02:00

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# Protected management frames tests
# Copyright (c) 2013, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
import time
import subprocess
import logging
logger = logging.getLogger()
import hwsim_utils
import hostapd
from wlantest import Wlantest
from wpasupplicant import WpaSupplicant
from test_ap_eap import eap_connect
def test_ap_pmf_required(dev, apdev):
"""WPA2-PSK AP with PMF required"""
ssid = "test-pmf-required"
wt = Wlantest()
wt.flush()
wt.add_passphrase("12345678")
params = hostapd.wpa2_params(ssid=ssid, passphrase="12345678")
params["wpa_key_mgmt"] = "WPA-PSK-SHA256";
params["ieee80211w"] = "2";
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
key_mgmt = hapd.get_config()['key_mgmt']
if key_mgmt.split(' ')[0] != "WPA-PSK-SHA256":
raise Exception("Unexpected GET_CONFIG(key_mgmt): " + key_mgmt)
dev[0].connect(ssid, psk="12345678", ieee80211w="1",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
if "[WPA2-PSK-SHA256-CCMP]" not in dev[0].request("SCAN_RESULTS"):
raise Exception("Scan results missing RSN element info")
hwsim_utils.test_connectivity(dev[0], hapd)
dev[1].connect(ssid, psk="12345678", ieee80211w="2",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[1], hapd)
hapd = hostapd.Hostapd(apdev[0]['ifname'])
hapd.request("SA_QUERY " + dev[0].p2p_interface_addr())
hapd.request("SA_QUERY " + dev[1].p2p_interface_addr())
wt.require_ap_pmf_mandatory(apdev[0]['bssid'])
wt.require_sta_pmf(apdev[0]['bssid'], dev[0].p2p_interface_addr())
wt.require_sta_pmf_mandatory(apdev[0]['bssid'], dev[1].p2p_interface_addr())
time.sleep(0.1)
if wt.get_sta_counter("valid_saqueryresp_tx", apdev[0]['bssid'],
dev[0].p2p_interface_addr()) < 1:
raise Exception("STA did not reply to SA Query")
if wt.get_sta_counter("valid_saqueryresp_tx", apdev[0]['bssid'],
dev[1].p2p_interface_addr()) < 1:
raise Exception("STA did not reply to SA Query")
def test_ap_pmf_optional(dev, apdev):
"""WPA2-PSK AP with PMF optional"""
ssid = "test-pmf-optional"
wt = Wlantest()
wt.flush()
wt.add_passphrase("12345678")
params = hostapd.wpa2_params(ssid=ssid, passphrase="12345678")
params["wpa_key_mgmt"] = "WPA-PSK";
params["ieee80211w"] = "1";
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect(ssid, psk="12345678", ieee80211w="1",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[0], hapd)
dev[1].connect(ssid, psk="12345678", ieee80211w="2",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[1], hapd)
wt.require_ap_pmf_optional(apdev[0]['bssid'])
wt.require_sta_pmf(apdev[0]['bssid'], dev[0].p2p_interface_addr())
wt.require_sta_pmf_mandatory(apdev[0]['bssid'], dev[1].p2p_interface_addr())
def test_ap_pmf_optional_2akm(dev, apdev):
"""WPA2-PSK AP with PMF optional (2 AKMs)"""
ssid = "test-pmf-optional-2akm"
wt = Wlantest()
wt.flush()
wt.add_passphrase("12345678")
params = hostapd.wpa2_params(ssid=ssid, passphrase="12345678")
params["wpa_key_mgmt"] = "WPA-PSK WPA-PSK-SHA256";
params["ieee80211w"] = "1";
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect(ssid, psk="12345678", ieee80211w="1",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[0], hapd)
dev[1].connect(ssid, psk="12345678", ieee80211w="2",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[1], hapd)
wt.require_ap_pmf_optional(apdev[0]['bssid'])
wt.require_sta_pmf(apdev[0]['bssid'], dev[0].p2p_interface_addr())
wt.require_sta_key_mgmt(apdev[0]['bssid'], dev[0].p2p_interface_addr(),
"PSK-SHA256")
wt.require_sta_pmf_mandatory(apdev[0]['bssid'], dev[1].p2p_interface_addr())
wt.require_sta_key_mgmt(apdev[0]['bssid'], dev[1].p2p_interface_addr(),
"PSK-SHA256")
def test_ap_pmf_negative(dev, apdev):
"""WPA2-PSK AP without PMF (negative test)"""
ssid = "test-pmf-negative"
wt = Wlantest()
wt.flush()
wt.add_passphrase("12345678")
params = hostapd.wpa2_params(ssid=ssid, passphrase="12345678")
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect(ssid, psk="12345678", ieee80211w="1",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[0], hapd)
try:
dev[1].connect(ssid, psk="12345678", ieee80211w="2",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[1], hapd)
raise Exception("PMF required STA connected to no PMF AP")
except Exception, e:
logger.debug("Ignore expected exception: " + str(e))
wt.require_ap_no_pmf(apdev[0]['bssid'])
def test_ap_pmf_assoc_comeback(dev, apdev):
"""WPA2-PSK AP with PMF association comeback"""
ssid = "assoc-comeback"
wt = Wlantest()
wt.flush()
wt.add_passphrase("12345678")
params = hostapd.wpa2_params(ssid=ssid, passphrase="12345678")
params["wpa_key_mgmt"] = "WPA-PSK-SHA256";
params["ieee80211w"] = "2";
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect(ssid, psk="12345678", ieee80211w="1",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
hapd.set("ext_mgmt_frame_handling", "1")
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=10)
hapd.set("ext_mgmt_frame_handling", "0")
dev[0].request("REASSOCIATE")
dev[0].wait_connected(timeout=10, error="Timeout on re-connection")
if wt.get_sta_counter("assocresp_comeback", apdev[0]['bssid'],
dev[0].p2p_interface_addr()) < 1:
raise Exception("AP did not use association comeback request")
def test_ap_pmf_assoc_comeback2(dev, apdev):
"""WPA2-PSK AP with PMF association comeback (using DROP_SA)"""
ssid = "assoc-comeback"
wt = Wlantest()
wt.flush()
wt.add_passphrase("12345678")
params = hostapd.wpa2_params(ssid=ssid, passphrase="12345678")
params["wpa_key_mgmt"] = "WPA-PSK";
params["ieee80211w"] = "1";
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect(ssid, psk="12345678", ieee80211w="2",
key_mgmt="WPA-PSK", proto="WPA2", scan_freq="2412")
if "OK" not in dev[0].request("DROP_SA"):
raise Exception("DROP_SA failed")
dev[0].request("REASSOCIATE")
dev[0].wait_connected(timeout=10, error="Timeout on re-connection")
if wt.get_sta_counter("reassocresp_comeback", apdev[0]['bssid'],
dev[0].p2p_interface_addr()) < 1:
raise Exception("AP did not use reassociation comeback request")
def test_ap_pmf_sta_sa_query(dev, apdev):
"""WPA2-PSK AP with station using SA Query"""
ssid = "assoc-comeback"
addr = dev[0].own_addr()
wt = Wlantest()
wt.flush()
wt.add_passphrase("12345678")
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan5", drv_params="use_monitor=1")
id = wpas.add_network()
wpas.set_network(id, "mode", "2")
wpas.set_network_quoted(id, "ssid", ssid)
wpas.set_network(id, "proto", "WPA2")
wpas.set_network(id, "key_mgmt", "WPA-PSK-SHA256")
wpas.set_network(id, "ieee80211w", "2")
wpas.set_network_quoted(id, "psk", "12345678")
wpas.set_network(id, "pairwise", "CCMP")
wpas.set_network(id, "group", "CCMP")
wpas.set_network(id, "frequency", "2412")
wpas.connect_network(id)
bssid = wpas.own_addr()
wpas.dump_monitor()
dev[0].connect(ssid, psk="12345678", ieee80211w="1",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
wpas.dump_monitor()
wpas.request("DEAUTHENTICATE " + addr + " test=0")
wpas.dump_monitor()
wpas.request("DISASSOCIATE " + addr + " test=0")
wpas.dump_monitor()
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected disconnection")
wpas.request("DEAUTHENTICATE " + addr + " reason=6 test=0")
wpas.dump_monitor()
wpas.request("DISASSOCIATE " + addr + " reason=7 test=0")
wpas.dump_monitor()
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected disconnection")
if wt.get_sta_counter("valid_saqueryreq_tx", bssid, addr) < 1:
raise Exception("STA did not send SA Query")
if wt.get_sta_counter("valid_saqueryresp_rx", bssid, addr) < 1:
raise Exception("AP did not reply to SA Query")
wpas.dump_monitor()
def test_ap_pmf_sta_sa_query_no_response(dev, apdev):
"""WPA2-PSK AP with station using SA Query and getting no response"""
ssid = "assoc-comeback"
addr = dev[0].own_addr()
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan5", drv_params="use_monitor=1")
id = wpas.add_network()
wpas.set_network(id, "mode", "2")
wpas.set_network_quoted(id, "ssid", ssid)
wpas.set_network(id, "proto", "WPA2")
wpas.set_network(id, "key_mgmt", "WPA-PSK-SHA256")
wpas.set_network(id, "ieee80211w", "2")
wpas.set_network_quoted(id, "psk", "12345678")
wpas.set_network(id, "pairwise", "CCMP")
wpas.set_network(id, "group", "CCMP")
wpas.set_network(id, "frequency", "2412")
wpas.connect_network(id)
bssid = wpas.own_addr()
wpas.dump_monitor()
dev[0].connect(ssid, psk="12345678", ieee80211w="1",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
wpas.dump_monitor()
wpas.request("DEAUTHENTICATE " + addr + " test=0")
wpas.dump_monitor()
wpas.request("DISASSOCIATE " + addr + " test=0")
wpas.dump_monitor()
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected disconnection")
wpas.request("SET ext_mgmt_frame_handling 1")
wpas.request("DEAUTHENTICATE " + addr + " reason=6 test=0")
wpas.dump_monitor()
wpas.request("DISASSOCIATE " + addr + " reason=7 test=0")
wpas.dump_monitor()
dev[0].wait_disconnected()
wpas.dump_monitor()
wpas.request("SET ext_mgmt_frame_handling 0")
dev[0].wait_connected()
wpas.dump_monitor()
def test_ap_pmf_sta_unprot_deauth_burst(dev, apdev):
"""WPA2-PSK AP with station receiving burst of unprotected Deauthentication frames"""
ssid = "deauth-attack"
addr = dev[0].own_addr()
wt = Wlantest()
wt.flush()
wt.add_passphrase("12345678")
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan5", drv_params="use_monitor=1")
id = wpas.add_network()
wpas.set_network(id, "mode", "2")
wpas.set_network_quoted(id, "ssid", ssid)
wpas.set_network(id, "proto", "WPA2")
wpas.set_network(id, "key_mgmt", "WPA-PSK-SHA256")
wpas.set_network(id, "ieee80211w", "2")
wpas.set_network_quoted(id, "psk", "12345678")
wpas.set_network(id, "pairwise", "CCMP")
wpas.set_network(id, "group", "CCMP")
wpas.set_network(id, "frequency", "2412")
wpas.connect_network(id)
bssid = wpas.own_addr()
dev[0].connect(ssid, psk="12345678", ieee80211w="1",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
for i in range(0, 10):
wpas.request("DEAUTHENTICATE " + addr + " reason=6 test=0")
wpas.request("DISASSOCIATE " + addr + " reason=7 test=0")
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected disconnection")
num_req = wt.get_sta_counter("valid_saqueryreq_tx", bssid, addr)
num_resp = wt.get_sta_counter("valid_saqueryresp_rx", bssid, addr)
if num_req < 1:
raise Exception("STA did not send SA Query")
if num_resp < 1:
raise Exception("AP did not reply to SA Query")
if num_req > 1:
raise Exception("STA initiated too many SA Query procedures (%d)" % num_req)
time.sleep(10)
for i in range(0, 5):
wpas.request("DEAUTHENTICATE " + addr + " reason=6 test=0")
wpas.request("DISASSOCIATE " + addr + " reason=7 test=0")
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected disconnection")
num_req = wt.get_sta_counter("valid_saqueryreq_tx", bssid, addr)
num_resp = wt.get_sta_counter("valid_saqueryresp_rx", bssid, addr)
if num_req != 2 or num_resp != 2:
raise Exception("Unexpected number of SA Query procedures (req=%d resp=%d)" % (num_req, num_resp))
def test_ap_pmf_required_eap(dev, apdev):
"""WPA2-EAP AP with PMF required"""
ssid = "test-pmf-required-eap"
params = hostapd.wpa2_eap_params(ssid=ssid)
params["wpa_key_mgmt"] = "WPA-EAP-SHA256";
params["ieee80211w"] = "2";
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
key_mgmt = hapd.get_config()['key_mgmt']
if key_mgmt.split(' ')[0] != "WPA-EAP-SHA256":
raise Exception("Unexpected GET_CONFIG(key_mgmt): " + key_mgmt)
dev[0].connect("test-pmf-required-eap", key_mgmt="WPA-EAP-SHA256",
ieee80211w="2", eap="PSK", identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
scan_freq="2412")
dev[1].connect("test-pmf-required-eap", key_mgmt="WPA-EAP WPA-EAP-SHA256",
ieee80211w="1", eap="PSK", identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
scan_freq="2412")
def test_ap_pmf_optional_eap(dev, apdev):
"""WPA2EAP AP with PMF optional"""
params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
params["ieee80211w"] = "1";
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="TTLS",
identity="pap user", anonymous_identity="ttls",
password="password",
ca_cert="auth_serv/ca.pem", phase2="auth=PAP",
ieee80211w="1", scan_freq="2412")
dev[1].connect("test-wpa2-eap", key_mgmt="WPA-EAP WPA-EAP-SHA256",
eap="TTLS", identity="pap user", anonymous_identity="ttls",
password="password",
ca_cert="auth_serv/ca.pem", phase2="auth=PAP",
ieee80211w="2", scan_freq="2412")
def test_ap_pmf_required_sha1(dev, apdev):
"""WPA2-PSK AP with PMF required with SHA1 AKM"""
ssid = "test-pmf-required-sha1"
wt = Wlantest()
wt.flush()
wt.add_passphrase("12345678")
params = hostapd.wpa2_params(ssid=ssid, passphrase="12345678")
params["wpa_key_mgmt"] = "WPA-PSK";
params["ieee80211w"] = "2";
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
key_mgmt = hapd.get_config()['key_mgmt']
if key_mgmt.split(' ')[0] != "WPA-PSK":
raise Exception("Unexpected GET_CONFIG(key_mgmt): " + key_mgmt)
dev[0].connect(ssid, psk="12345678", ieee80211w="2",
key_mgmt="WPA-PSK", proto="WPA2", scan_freq="2412")
if "[WPA2-PSK-CCMP]" not in dev[0].request("SCAN_RESULTS"):
raise Exception("Scan results missing RSN element info")
hwsim_utils.test_connectivity(dev[0], hapd)
def test_ap_pmf_toggle(dev, apdev):
"""WPA2-PSK AP with PMF optional and changing PMF on reassociation"""
try:
_test_ap_pmf_toggle(dev, apdev)
finally:
dev[0].request("SET reassoc_same_bss_optim 0")
def _test_ap_pmf_toggle(dev, apdev):
ssid = "test-pmf-optional"
wt = Wlantest()
wt.flush()
wt.add_passphrase("12345678")
params = hostapd.wpa2_params(ssid=ssid, passphrase="12345678")
params["wpa_key_mgmt"] = "WPA-PSK";
params["ieee80211w"] = "1";
params["assoc_sa_query_max_timeout"] = "1"
params["assoc_sa_query_retry_timeout"] = "1"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
bssid = apdev[0]['bssid']
addr = dev[0].own_addr()
dev[0].request("SET reassoc_same_bss_optim 1")
id = dev[0].connect(ssid, psk="12345678", ieee80211w="1",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
wt.require_ap_pmf_optional(bssid)
wt.require_sta_pmf(bssid, addr)
sta = hapd.get_sta(addr)
if '[MFP]' not in sta['flags']:
raise Exception("MFP flag not present for STA")
dev[0].set_network(id, "ieee80211w", "0")
dev[0].request("REASSOCIATE")
dev[0].wait_connected()
wt.require_sta_no_pmf(bssid, addr)
sta = hapd.get_sta(addr)
if '[MFP]' in sta['flags']:
raise Exception("MFP flag unexpectedly present for STA")
cmd = subprocess.Popen(['iw', 'dev', apdev[0]['ifname'], 'station', 'get',
addr], stdout=subprocess.PIPE)
(data,err) = cmd.communicate()
if "yes" in [l for l in data.splitlines() if "MFP" in l][0]:
raise Exception("Kernel STA entry had MFP enabled")
dev[0].set_network(id, "ieee80211w", "1")
dev[0].request("REASSOCIATE")
dev[0].wait_connected()
wt.require_sta_pmf(bssid, addr)
sta = hapd.get_sta(addr)
if '[MFP]' not in sta['flags']:
raise Exception("MFP flag not present for STA")
cmd = subprocess.Popen(['iw', 'dev', apdev[0]['ifname'], 'station', 'get',
addr], stdout=subprocess.PIPE)
(data,err) = cmd.communicate()
if "yes" not in [l for l in data.splitlines() if "MFP" in l][0]:
raise Exception("Kernel STA entry did not have MFP enabled")
def test_ap_pmf_required_sta_no_pmf(dev, apdev):
"""WPA2-PSK AP with PMF required and PMF disabled on STA"""
ssid = "test-pmf-required"
params = hostapd.wpa2_params(ssid=ssid, passphrase="12345678")
params["wpa_key_mgmt"] = "WPA-PSK-SHA256";
params["ieee80211w"] = "2";
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
# Disable PMF on the station and try to connect
dev[0].connect(ssid, psk="12345678", ieee80211w="0",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412", wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-NETWORK-NOT-FOUND",
"CTRL-EVENT-ASSOC-REJECT"], timeout=2)
if ev is None:
raise Exception("No connection result")
if "CTRL-EVENT-ASSOC-REJECT" in ev:
raise Exception("Tried to connect to PMF required AP without PMF enabled")
dev[0].request("REMOVE_NETWORK all")
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