From: Michael Braun <michael-dev@xxxxxxxxxxxxx>
A malcious station could try to do FT-over-DS with a non WPA-enabled BSS.
When this BSS is located in the same hostapd instance, internal RRB
delivery will be used and thus the FT Action Frame will be processed by a
non-WPA enabled BSS. This processing will crash hostapd as hapd->wpa_auth
is null.
This test implements such a malcious request and checks for hostapd
crashing.
Signed-off-by: Michael Braun <michael-dev@xxxxxxxxxxxxx>
---
tests/hwsim/test_ap_ft.py | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/tests/hwsim/test_ap_ft.py b/tests/hwsim/test_ap_ft.py
index 7d0f515..4143072 100644
--- a/tests/hwsim/test_ap_ft.py
+++ b/tests/hwsim/test_ap_ft.py
@@ -1444,3 +1444,30 @@ def test_ap_ft_bridge(dev, apdev):
finally:
subprocess.call(['ip', 'link', 'set', 'dev', "brft", 'down'])
subprocess.call(['brctl', 'delbr', "brft"])
+
+def test_ap_ft_internal_rrb_check(dev, apdev):
+ """RRB internal delivery only to wpa enabled bss"""
+ ssid = "test-ft"
+ passphrase="12345678"
+
+ radius = hostapd.radius_params()
+ params = ft_params1(ssid=ssid, passphrase=passphrase)
+ params['wpa_key_mgmt'] = "FT-EAP"
+ params["ieee8021x"] = "1"
+ params = dict(radius.items() + params.items())
+ hapd = hostapd.add_ap(apdev[0]['ifname'], params)
+ key_mgmt = hapd.get_config()['key_mgmt']
+ if key_mgmt.split(' ')[0] != "FT-EAP":
+ raise Exception("Unexpected GET_CONFIG(key_mgmt): " + key_mgmt)
+
+ hapd1 = hostapd.add_ap(apdev[1]['ifname'], { "ssid" : ssid })
+
+ # connect to WPA enabled AP
+ dev[0].connect(ssid, key_mgmt="FT-EAP", proto="WPA2", ieee80211w="1",
+ eap="GPSK", identity="gpsk user",
+ password="abcdefghijklmnop0123456789abcdef",
+ scan_freq="2412")
+
+ # try over_ds roaming to non-WPA-enabled AP
+ # if hostapd does not check hapd->wpa_auth internally, it will crash now.
+ dev[0].roam_over_ds(apdev[1]['bssid'], fail_test=True)
--
1.9.1
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