summaryrefslogtreecommitdiffstats
path: root/source/n/wpa_supplicant/2017-1/rebased-v2.6-0004-Prevent-installation-of-an-all-zero-TK.patch
diff options
context:
space:
mode:
author Patrick J Volkerding <volkerdi@slackware.com>2018-12-29 23:13:15 +0000
committer Eric Hameleers <alien@slackware.com>2018-12-30 08:59:46 +0100
commit527328c5da0d2375ca5dfc2a053c9fe328839918 (patch)
treed2773d407aba234712f864db90e15c99a9e08da5 /source/n/wpa_supplicant/2017-1/rebased-v2.6-0004-Prevent-installation-of-an-all-zero-TK.patch
parent1e1c447e2ef274f8b3733ba21570e74c3bc757b7 (diff)
downloadcurrent-527328c5da0d2375ca5dfc2a053c9fe328839918.tar.gz
current-527328c5da0d2375ca5dfc2a053c9fe328839918.tar.xz
Sat Dec 29 23:13:15 UTC 201820181229231315
a/kernel-generic-4.19.13-x86_64-1.txz: Upgraded. a/kernel-huge-4.19.13-x86_64-1.txz: Upgraded. a/kernel-modules-4.19.13-x86_64-1.txz: Upgraded. d/doxygen-1.8.15-x86_64-1.txz: Upgraded. d/kernel-headers-4.19.13-x86-1.txz: Upgraded. k/kernel-source-4.19.13-noarch-1.txz: Upgraded. FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER y -> n l/libsecret-0.18.7-x86_64-1.txz: Upgraded. n/wpa_supplicant-2.6-x86_64-6.txz: Upgraded. It seems we're not the only ones with broken WPA2-Enterprise support with wpa_supplicant-2.7, so we'll fix it the same way as everyone else - by reverting to wpa_supplicant-2.6 for now. isolinux/initrd.img: Rebuilt. kernels/*: Upgraded. testing/packages/wpa_supplicant-2.7-x86_64-2.txz: Upgraded. Applied a patch from Gentoo to allow building CONFIG_IEEE80211X=y without the experimental CONFIG_FILS=y option. usb-and-pxe-installers/usbboot.img: Rebuilt.
Diffstat (limited to 'source/n/wpa_supplicant/2017-1/rebased-v2.6-0004-Prevent-installation-of-an-all-zero-TK.patch')
-rw-r--r--source/n/wpa_supplicant/2017-1/rebased-v2.6-0004-Prevent-installation-of-an-all-zero-TK.patch79
1 files changed, 79 insertions, 0 deletions
diff --git a/source/n/wpa_supplicant/2017-1/rebased-v2.6-0004-Prevent-installation-of-an-all-zero-TK.patch b/source/n/wpa_supplicant/2017-1/rebased-v2.6-0004-Prevent-installation-of-an-all-zero-TK.patch
new file mode 100644
index 000000000..22ee21794
--- /dev/null
+++ b/source/n/wpa_supplicant/2017-1/rebased-v2.6-0004-Prevent-installation-of-an-all-zero-TK.patch
@@ -0,0 +1,79 @@
+From 8f82bc94e8697a9d47fa8774dfdaaede1084912c Mon Sep 17 00:00:00 2001
+From: Mathy Vanhoef <Mathy.Vanhoef@cs.kuleuven.be>
+Date: Fri, 29 Sep 2017 04:22:51 +0200
+Subject: [PATCH 4/8] Prevent installation of an all-zero TK
+
+Properly track whether a PTK has already been installed to the driver
+and the TK part cleared from memory. This prevents an attacker from
+trying to trick the client into installing an all-zero TK.
+
+This fixes the earlier fix in commit
+ad00d64e7d8827b3cebd665a0ceb08adabf15e1e ('Fix TK configuration to the
+driver in EAPOL-Key 3/4 retry case') which did not take into account
+possibility of an extra message 1/4 showing up between retries of
+message 3/4.
+
+Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@cs.kuleuven.be>
+---
+ src/common/wpa_common.h | 1 +
+ src/rsn_supp/wpa.c | 5 ++---
+ src/rsn_supp/wpa_i.h | 1 -
+ 3 files changed, 3 insertions(+), 4 deletions(-)
+
+diff --git a/src/common/wpa_common.h b/src/common/wpa_common.h
+index d200285..1021ccb 100644
+--- a/src/common/wpa_common.h
++++ b/src/common/wpa_common.h
+@@ -215,6 +215,7 @@ struct wpa_ptk {
+ size_t kck_len;
+ size_t kek_len;
+ size_t tk_len;
++ int installed; /* 1 if key has already been installed to driver */
+ };
+
+ struct wpa_gtk {
+diff --git a/src/rsn_supp/wpa.c b/src/rsn_supp/wpa.c
+index 7a2c68d..0550a41 100644
+--- a/src/rsn_supp/wpa.c
++++ b/src/rsn_supp/wpa.c
+@@ -510,7 +510,6 @@ static void wpa_supplicant_process_1_of_4(struct wpa_sm *sm,
+ os_memset(buf, 0, sizeof(buf));
+ }
+ sm->tptk_set = 1;
+- sm->tk_to_set = 1;
+
+ kde = sm->assoc_wpa_ie;
+ kde_len = sm->assoc_wpa_ie_len;
+@@ -615,7 +614,7 @@ static int wpa_supplicant_install_ptk(struct wpa_sm *sm,
+ enum wpa_alg alg;
+ const u8 *key_rsc;
+
+- if (!sm->tk_to_set) {
++ if (sm->ptk.installed) {
+ wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
+ "WPA: Do not re-install same PTK to the driver");
+ return 0;
+@@ -659,7 +658,7 @@ static int wpa_supplicant_install_ptk(struct wpa_sm *sm,
+
+ /* TK is not needed anymore in supplicant */
+ os_memset(sm->ptk.tk, 0, WPA_TK_MAX_LEN);
+- sm->tk_to_set = 0;
++ sm->ptk.installed = 1;
+
+ if (sm->wpa_ptk_rekey) {
+ eloop_cancel_timeout(wpa_sm_rekey_ptk, sm, NULL);
+diff --git a/src/rsn_supp/wpa_i.h b/src/rsn_supp/wpa_i.h
+index 9a54631..41f371f 100644
+--- a/src/rsn_supp/wpa_i.h
++++ b/src/rsn_supp/wpa_i.h
+@@ -24,7 +24,6 @@ struct wpa_sm {
+ struct wpa_ptk ptk, tptk;
+ int ptk_set, tptk_set;
+ unsigned int msg_3_of_4_ok:1;
+- unsigned int tk_to_set:1;
+ u8 snonce[WPA_NONCE_LEN];
+ u8 anonce[WPA_NONCE_LEN]; /* ANonce from the last 1/4 msg */
+ int renew_snonce;
+--
+2.7.4
+