Commit 458cb30191 broke LEAP since it
rejects EAP-Success packet that is used within LEAP and this frame does
not have a payload. Fix LEAP by relaxing the generic EAP packet
validation if LEAP has been negotiated.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
While the existing code already addresses TLS Message Length validation
for both EAP-TLS peer and server side, this adds explicit checks and
rejection of invalid messages in the functions handling reassembly. This
does not change externally observable behavior in case of EAP server.
For EAP peer, this starts rejecting invalid messages instead of
addressing them by reallocating the buffer (i.e., ignoring TLS Message
Length in practice).
Signed-hostap: Jouni Malinen <j@w1.fi>
Use the anonymous_identity field to store EAP-SIM/AKA pseudonym identity
so that this can be maintained between EAP sessions (e.g., after
wpa_supplicant restart) even if fast re-authentication data was cleared.
Signed-hostap: Jouni Malinen <j@w1.fi>
The AT_NONCE_S value needs to be used in AT_MAC calculation for
SIM/Re-authentication response even if re-authentication is rejected
with AT_COUNTER_TOO_SMALL.
Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
This EAP type uses a vendor specific expanded EAP header to encapsulate
EAP-TLS with a configuration where the EAP server does not authenticate
the EAP peer. In other words, this method includes only server
authentication. The peer is configured with only the ca_cert parameter
(similarly to other TLS-based EAP methods). This method can be used for
cases where the network provides free access to anyone, but use of RSN
with a securely derived unique PMK for each station is desired.
The expanded EAP header uses the hostapd/wpa_supplicant vendor
code 39068 and vendor type 1 to identify the UNAUTH-TLS method.
Signed-hostap: Jouni Malinen <j@w1.fi>
Some deployed authentication servers seem to be unable to handle the TLS
Session Ticket extension (they are supposed to ignore unrecognized TLS
extensions, but end up rejecting the ClientHello instead). As a
workaround, disable use of TLS Sesson Ticket extension for EAP-TLS,
EAP-PEAP, and EAP-TTLS (EAP-FAST uses session ticket, so any server that
supports EAP-FAST does not need this workaround).
Signed-hostap: Jouni Malinen <j@w1.fi>
tls_disable_session_ticket=1 in phase1/phase2 can now be used to disable
use of TLS Session Ticket extension (which is enabled by default in
recent OpenSSL versions). This can be used to work around issues with
broken authentication servers that do not ignore unrecognized TLS
extensions properly.
Signed-hostap: Jouni Malinen <j@w1.fi>
Only allow the TLS library keying material exporter functionality to be
used for MSK derivation with TLS-based EAP methods to avoid exporting
internal TLS keys from the library.
Signed-hostap: Jouni Malinen <j@w1.fi>
Previously, CONFIG_EAP_MSCHAPV2=y was assumed to be set for
CONFIG_EAP_TTLS=y. Avoid this dependency by making including the
MSCHAPv2 parts in EAP-TTLS conditionally.
Signed-hostap: Jouni Malinen <j@w1.fi>
These validation steps are already done in the EAP parsing code and in
the EAP methods, but the additional check is defensive programming and
can make the validation of received EAP messages more easier to
understand.
Signed-hostap: Jouni Malinen <j@w1.fi>
This allows the password parameter for EAP methods to be fetched
from an external storage.
Following example can be used for developer testing:
ext_password_backend=test:pw1=password|pw2=testing
network={
key_mgmt=WPA-EAP
eap=TTLS
identity="user"
password=ext:pw1
ca_cert="ca.pem"
phase2="auth=PAP"
}
Signed-hostap: Jouni Malinen <j@w1.fi>
At least some error paths (e.g., hitting the limit on hunt-and-peck
iterations) could have resulted in double-freeing of some memory
allocations. Avoid this by setting the pointers to NULL after they have
been freed instead of trying to free the data structure in a location
where some external references cannot be cleared. [Bug 453]
Signed-hostap: Jouni Malinen <j@w1.fi>
The AP PIN on wps_reg command can now be replaced with special value
"nfc-pw" to use device password from a NFC password token from the AP.
Signed-hostap: Jouni Malinen <j@w1.fi>
The OOB Device Password is passed in as a hexdump of the real Device
Password (16..32 octets of arbitrary binary data). The hexdump needs to
be converted to binary form before passing it for WPS processing.
Signed-hostap: Jouni Malinen <j@w1.fi>
Send an "EAP" signal via the new DBus interface under various
conditions during EAP authentication:
- During method selection (ACK and NAK)
- During certificate verification
- While sending and receiving TLS alert messages
- EAP success and failure messages
This provides DBus callers a number of new tools:
- The ability to probe an AP for available EAP methods
(given an identity).
- The ability to identify why the remote certificate was
not verified.
- The ability to identify why the remote peer refused
a TLS connection.
Signed-hostap: Paul Stewart <pstew@chromium.org>
There was a technical change between the last IETF draft version
(draft-arkko-eap-aka-kdf-10) and RFC 5448 in the leading characters
used in the username (i.e., use unique characters for EAP-AKA' instead
of reusing the EAP-AKA ones). This commit updates EAP-AKA' server and
peer implementations to use the leading characters based on the final
RFC.
Note: This will make EAP-AKA' not interoperate between the earlier
draft version and the new version.
Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
OpenSSL wrapper was using the same certificate store for both Phase 1
and Phase 2 TLS exchange in case of EAP-PEAP/TLS, EAP-TTLS/TLS, and
EAP-FAST/TLS. This would be fine if the same CA certificates were used
in both phases, but does not work properly if different CA certificates
are used. Enforce full separation of TLS state between the phases by
using a separate TLS library context in EAP peer implementation.
Signed-hostap: Jouni Malinen <j@w1.fi>
Commit 30680e9332 changed the length
of the implicit challenge result to match with the exact length used
in TTLS. However, it failed to update the peer_challenge generation
to use a separate random value. Previously, this was generated as
part of the implicit challenge, but more correct way would have been
to generate a random value for it separately. Do this now to fix the
read after the allocated buffer (16 bytes after the implicit
challenge).
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
intended-for: hostap-1
Remove the GPL notification text from EAP-pwd implementation per
approval from Dan Harkins who contributed these files.
(email from Dan Harkins <dharkins@lounge.org> dated
Wed, 4 Jan 2012 16:25:48 -0800)
Signed-hostap: Jouni Malinen <j@w1.fi>
The pseudonym identity should use a realm in environments where a realm is
used. Thus, the realm of the permanent identity is added to the pseudonym
username sent by the server.
Signed-hostap: Simon Baatz <gmbnomis@gmail.com>
The pseudonym identity should use a realm in environments where a realm is
used. Thus, the realm of the permanent identity is added to the pseudonym
username sent by the server.
Signed-hostap: Simon Baatz <gmbnomis@gmail.com>
Some SIM cards do not include MNC length with in EF_AD. Try to figure
out the MNC length based on the MCC/MNC values in the beginning of the
IMSI. This covers a prepaid Elisa/Kolumbus card that would have ended
up using incorrect MNC length based on the 3-digit default.
Signed-hostap: Jouni Malinen <j@w1.fi>
The temporary IMSI buffer can be used for this without needing the
extra memory allocation. In addition, the implementation is easier
to understand when the extra identity prefix value for EAP-SIM/AKA
is not included while fetching MCC/MNC from the IMSI.
Signed-hostap: Jouni Malinen <j@w1.fi>
The pseudonym is a temporary identity, but is no one-time identifier (like
the fast re-authentication identity). Thus, do not forget it if the server
does not include it in every challenge. There are servers that include the
pseudonym identity only at full-auth. [Bug 424]
Prepare for multiple TLS PRF functions by renaming the SHA1+MD5 based
TLS PRF function to more specific name and add tls_prf() within the
internal TLS implementation as a wrapper for this for now.
Signed-hostap: Jouni Malinen <j@w1.fi>
This structure was not really used for anything apart from figuring out
length of the EAP-pwd header (and even that in a way that would not work
with fragmentation). Since the bitfields in the structure could have
been problematic depending on target endianness, remove this unnecessary
structure.
Signed-hostap: Jouni Malinen <j@w1.fi>
Another niceness of OpenSSL is that if the high-order bit of a 521-bit
big num is not set then BN_bn2bin() will just return 65 bytes instead of
66 bytes with the 1st (big endian, after all) being all zero. When this
happens the wrong number of octets are mixed into function H(). So
there's a whole bunch of "offset" computations and BN_bn2bin() dumps the
big number into a buffer + offset. That should be obvious in the patch
too.
data->phase2_method cannot really be NULL if
eap_fast_init_phase2_method() returns success, but this construction
seems to be too difficult for some static analyzers. While this change
is not really needed in practice, it makes it easier to go through
warnings from such analyzers.
Signed-hostap: Jouni Malinen <j@w1.fi>
This function can fail in theory since the SHA-1 functions are
allowed to return an error. While this does not really happen in
practice (we would not get this far if SHA-1 does not work), it is
cleaner to include the error handling here to keep static analyzers
happier. [Bug 421]
Signed-hostap: Jouni Malinen <j@w1.fi>
Control requests will be extended for non-EAP uses later, so it makes
sense to have them be generic. Furthermore, having them defined as an
enum is easier for processing internally, and more generic for control
interfaces that may not use field names. The public ctrl_req_type /
field_name conversion function will be used later by the D-Bus control
interface too.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Special processing is needed to handle EAP user request for
identity or password at the beginning of Phase 2 when the implicit
identity request is used. data->pending_phase2_req needs to be set
to an empty buffer in that case to avoid re-processing the previous
part of TLS negotiation when the user enters the needed information.
Signed-hostap: Jouni Malinen <j@w1.fi>
This fixes an issue where WPS run leaves a small ClientTimeout
value (2) configured and the next EAPOL authentication is started
with that small value even for Identity exchange. This can cause
problems when an EAPOL packet gets dropped immediately after
association and a retry of that packet is needed (which may take
more than two seconds).
While EAP-FAST uses protected success notification, RFC 5422, Section
3.5 points out a possibility of EAP-Failure being sent out even after
protected success notification in case of provisioning. Change the
EAP-FAST peer implementation to accept that exception to the protected
success notification. This allows the station to re-connect more quickly
to complete EAP-FAST connection in the case the server rejects the
initial attempt by only allowing it to use to provision a new PAC.
These protocols seem to be abandoned: latest IETF drafts have expired
years ago and it does not seem likely that EAP-TTLSv1 would be
deployed. The implementation in hostapd/wpa_supplicant was not complete
and not fully tested. In addition, the TLS/IA functionality was only
available when GnuTLS was used. Since GnuTLS removed this functionality
in 3.0.0, there is no available TLS/IA implementation in the latest
version of any supported TLS library.
Remove the EAP-TTLSv1 and TLS/IA implementation to clean up unwanted
complexity from hostapd and wpa_supplicant. In addition, this removes
any potential use of the GnuTLS extra library.
