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author | Felix Fietkau <nbd@nbd.name> | 2017-10-16 11:39:23 +0200 |
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committer | Felix Fietkau <nbd@nbd.name> | 2017-10-16 12:01:57 +0200 |
commit | bbda81ce3077dfade2a43a39f772cfec2e82a9a5 (patch) | |
tree | 85d3ecb10669b2829220c0c2f134e80094bd837e /package/network/services/hostapd/patches/007-FT-Do-not-allow-multiple-Reassociation-Response-fram.patch | |
parent | 0d5c1d7f238cd5aca207268950edc70ed6cf0a05 (diff) | |
download | upstream-bbda81ce3077dfade2a43a39f772cfec2e82a9a5.tar.gz upstream-bbda81ce3077dfade2a43a39f772cfec2e82a9a5.tar.bz2 upstream-bbda81ce3077dfade2a43a39f772cfec2e82a9a5.zip |
hostapd: merge fixes for WPA packet number reuse with replayed messages and key reinstallation
Fixes:
- CERT case ID: VU#228519
- CVE-2017-13077
- CVE-2017-13078
- CVE-2017-13079
- CVE-2017-13080
- CVE-2017-13081
- CVE-2017-13082
- CVE-2017-13086
- CVE-2017-13087
- CVE-2017-13088
For more information see:
https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'package/network/services/hostapd/patches/007-FT-Do-not-allow-multiple-Reassociation-Response-fram.patch')
-rw-r--r-- | package/network/services/hostapd/patches/007-FT-Do-not-allow-multiple-Reassociation-Response-fram.patch | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/package/network/services/hostapd/patches/007-FT-Do-not-allow-multiple-Reassociation-Response-fram.patch b/package/network/services/hostapd/patches/007-FT-Do-not-allow-multiple-Reassociation-Response-fram.patch new file mode 100644 index 0000000000..7712ce5198 --- /dev/null +++ b/package/network/services/hostapd/patches/007-FT-Do-not-allow-multiple-Reassociation-Response-fram.patch @@ -0,0 +1,68 @@ +From: Jouni Malinen <j@w1.fi> +Date: Fri, 22 Sep 2017 12:06:37 +0300 +Subject: [PATCH] FT: Do not allow multiple Reassociation Response frames + +The driver is expected to not report a second association event without +the station having explicitly request a new association. As such, this +case should not be reachable. However, since reconfiguring the same +pairwise or group keys to the driver could result in nonce reuse issues, +be extra careful here and do an additional state check to avoid this +even if the local driver ends up somehow accepting an unexpected +Reassociation Response frame. + +Signed-off-by: Jouni Malinen <j@w1.fi> +--- + +--- a/src/rsn_supp/wpa.c ++++ b/src/rsn_supp/wpa.c +@@ -2637,6 +2637,9 @@ void wpa_sm_notify_disassoc(struct wpa_s + #ifdef CONFIG_FILS + sm->fils_completed = 0; + #endif /* CONFIG_FILS */ ++#ifdef CONFIG_IEEE80211R ++ sm->ft_reassoc_completed = 0; ++#endif /* CONFIG_IEEE80211R */ + + /* Keys are not needed in the WPA state machine anymore */ + wpa_sm_drop_sa(sm); +--- a/src/rsn_supp/wpa_ft.c ++++ b/src/rsn_supp/wpa_ft.c +@@ -153,6 +153,7 @@ static u8 * wpa_ft_gen_req_ies(struct wp + u16 capab; + + sm->ft_completed = 0; ++ sm->ft_reassoc_completed = 0; + + buf_len = 2 + sizeof(struct rsn_mdie) + 2 + sizeof(struct rsn_ftie) + + 2 + sm->r0kh_id_len + ric_ies_len + 100; +@@ -687,6 +688,11 @@ int wpa_ft_validate_reassoc_resp(struct + return -1; + } + ++ if (sm->ft_reassoc_completed) { ++ wpa_printf(MSG_DEBUG, "FT: Reassociation has already been completed for this FT protocol instance - ignore unexpected retransmission"); ++ return 0; ++ } ++ + if (wpa_ft_parse_ies(ies, ies_len, &parse) < 0) { + wpa_printf(MSG_DEBUG, "FT: Failed to parse IEs"); + return -1; +@@ -787,6 +793,8 @@ int wpa_ft_validate_reassoc_resp(struct + return -1; + } + ++ sm->ft_reassoc_completed = 1; ++ + if (wpa_ft_process_gtk_subelem(sm, parse.gtk, parse.gtk_len) < 0) + return -1; + +--- a/src/rsn_supp/wpa_i.h ++++ b/src/rsn_supp/wpa_i.h +@@ -128,6 +128,7 @@ struct wpa_sm { + size_t r0kh_id_len; + u8 r1kh_id[FT_R1KH_ID_LEN]; + int ft_completed; ++ int ft_reassoc_completed; + int over_the_ds_in_progress; + u8 target_ap[ETH_ALEN]; /* over-the-DS target AP */ + int set_ptk_after_assoc; |