tree 01d449b3a17cd20a603d24e4cec9b9e4ee5a6de4
parent f7bcce468f1c1d8b2ba61744c305b29f46ce34e9
author Mathy Vanhoef <Mathy.Vanhoef@cs.kuleuven.be> 1499868204 +0200
committer Glen Kuhne <kuh@google.com> 1508172625 -0700

Prevent reinstallation of an already in-use group key

Track the current GTK and IGTK that is in use and when receiving a
(possibly retransmitted) Group Message 1 or WNM-Sleep Mode Response, do
not install the given key if it is already in use. This prevents an
attacker from trying to trick the client into resetting or lowering the
sequence counter associated to the group key.

Change-Id: I5a315accb15ca5d2464acc3c370c66e07d57c7ea
Merged-In: I5a315accb15ca5d2464acc3c370c66e07d57c7ea
Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@cs.kuleuven.be>
Signed-off-by: Glen Kuhne <kuh@google.com>
Bug: 65245581
Test: WiFi integration tests
Merged-In: I1273cf9ee58154b16512ef4284a8d2c5541d3c01