| The WPA2 four-way handshake protocol is vulnerable to replay attacks which can |
| result in unauthenticated clients gaining access to the network. |
| |
| Backport a number of patches from upstream to fix this. |
| |
| CVE: CVE-2017-13077 |
| CVE: CVE-2017-13078 |
| CVE: CVE-2017-13079 |
| CVE: CVE-2017-13080 |
| CVE: CVE-2017-13081 |
| CVE: CVE-2017-13082 |
| CVE: CVE-2017-13086 |
| CVE: CVE-2017-13087 |
| CVE: CVE-2017-13088 |
| |
| Upstream-Status: Backport |
| Signed-off-by: Ross Burton <ross.burton@intel.com> |
| |
| From 53c5eb58e95004f86e65ee9fbfccbc291b139057 Mon Sep 17 00:00:00 2001 |
| From: Jouni Malinen <j@w1.fi> |
| Date: Fri, 22 Sep 2017 11:25:02 +0300 |
| Subject: [PATCH 7/8] WNM: Ignore WNM-Sleep Mode Response without pending |
| request |
| |
| Commit 03ed0a52393710be6bdae657d1b36efa146520e5 ('WNM: Ignore WNM-Sleep |
| Mode Response if WNM-Sleep Mode has not been used') started ignoring the |
| response when no WNM-Sleep Mode Request had been used during the |
| association. This can be made tighter by clearing the used flag when |
| successfully processing a response. This adds an additional layer of |
| protection against unexpected retransmissions of the response frame. |
| |
| Signed-off-by: Jouni Malinen <j@w1.fi> |
| --- |
| wpa_supplicant/wnm_sta.c | 4 +++- |
| 1 file changed, 3 insertions(+), 1 deletion(-) |
| |
| diff --git a/wpa_supplicant/wnm_sta.c b/wpa_supplicant/wnm_sta.c |
| index 1b3409c..67a07ff 100644 |
| --- a/wpa_supplicant/wnm_sta.c |
| +++ b/wpa_supplicant/wnm_sta.c |
| @@ -260,7 +260,7 @@ static void ieee802_11_rx_wnmsleep_resp(struct wpa_supplicant *wpa_s, |
| |
| if (!wpa_s->wnmsleep_used) { |
| wpa_printf(MSG_DEBUG, |
| - "WNM: Ignore WNM-Sleep Mode Response frame since WNM-Sleep Mode has not been used in this association"); |
| + "WNM: Ignore WNM-Sleep Mode Response frame since WNM-Sleep Mode operation has not been requested"); |
| return; |
| } |
| |
| @@ -299,6 +299,8 @@ static void ieee802_11_rx_wnmsleep_resp(struct wpa_supplicant *wpa_s, |
| return; |
| } |
| |
| + wpa_s->wnmsleep_used = 0; |
| + |
| if (wnmsleep_ie->status == WNM_STATUS_SLEEP_ACCEPT || |
| wnmsleep_ie->status == WNM_STATUS_SLEEP_EXIT_ACCEPT_GTK_UPDATE) { |
| wpa_printf(MSG_DEBUG, "Successfully recv WNM-Sleep Response " |
| -- |
| 2.7.4 |