freebsd-dev/contrib/wpa
Cy Schubert 0ec68024a0 MFV r337818:
WPA: Ignore unauthenticated encrypted EAPOL-Key data

Ignore unauthenticated encrypted EAPOL-Key data in supplicant
processing. When using WPA2, these are frames that have the Encrypted
flag set, but not the MIC flag.

When using WPA2, EAPOL-Key frames that had the Encrypted flag set but
not the MIC flag, had their data field decrypted without first verifying
the MIC. In case the data field was encrypted using RC4 (i.e., when
negotiating TKIP as the pairwise cipher), this meant that
unauthenticated but decrypted data would then be processed. An adversary
could abuse this as a decryption oracle to recover sensitive information
in the data field of EAPOL-Key messages (e.g., the group key).
(CVE-2018-14526)

Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@cs.kuleuven.be>

Obtained from:  git://w1.fi/hostap.git
MFC after:      1 day
Security:       CVE-2018-14526
Security:       VuXML: 6bedc863-9fbe-11e8-945f-206a8a720317
2018-08-14 20:24:10 +00:00
..
hostapd MFV r324714: 2018-07-11 18:53:18 +00:00
hs20/client MFV r324714: 2018-07-11 18:53:18 +00:00
src MFV r337818: 2018-08-14 20:24:10 +00:00
wpa_supplicant To reduce our diff between our sources and our upline, sync up 2018-07-20 02:17:19 +00:00
CONTRIBUTIONS MFV r324714: 2018-07-11 18:53:18 +00:00
COPYING MFV r324714: 2018-07-11 18:53:18 +00:00
README MFV r324714: 2018-07-11 18:53:18 +00:00

wpa_supplicant and hostapd
--------------------------

Copyright (c) 2002-2016, Jouni Malinen <j@w1.fi> and contributors
All Rights Reserved.

These programs are licensed under the BSD license (the one with
advertisement clause removed).

If you are submitting changes to the project, please see CONTRIBUTIONS
file for more instructions.


This package may include either wpa_supplicant, hostapd, or both. See
README file respective subdirectories (wpa_supplicant/README or
hostapd/README) for more details.

Source code files were moved around in v0.6.x releases and compared to
earlier releases, the programs are now built by first going to a
subdirectory (wpa_supplicant or hostapd) and creating build
configuration (.config) and running 'make' there (for Linux/BSD/cygwin
builds).


License
-------

This software may be distributed, used, and modified under the terms of
BSD license:

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