EAP (PEAP)+ntlm_auth doesn't send password by it self
Cesar Ortega
cesar8489 at hotmail.com
Thu Mar 25 18:43:29 CET 2010
Good day Alan,
As I had thought the issue with the EAP packet was the configuration of Cisco access-point. I solved this but now I can not authenticate against Windows 2003 AD using ntlm_auth. This is the complete log:
FreeRADIUS Version 2.1.8, for host i486-pc-linux-gnu, built on Mar 18 2010 at 04:07:54
Copyright (C) 1999-2009 The FreeRADIUS server project and contributors.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
You may redistribute copies of FreeRADIUS under the terms of the
GNU General Public License v2.
Starting - reading configuration files ...
including configuration file /etc/freeradius/radiusd.conf
including configuration file /etc/freeradius/proxy.conf
including configuration file /etc/freeradius/clients.conf
including files in directory /etc/freeradius/modules/
including configuration file /etc/freeradius/modules/expr
including configuration file /etc/freeradius/modules/detail.example.com
including configuration file /etc/freeradius/modules/logintime
including configuration file /etc/freeradius/modules/ldap
including configuration file /etc/freeradius/modules/checkval
including configuration file /etc/freeradius/modules/realm
including configuration file /etc/freeradius/modules/mac2ip
including configuration file /etc/freeradius/modules/cui
including configuration file /etc/freeradius/modules/chap
including configuration file /etc/freeradius/modules/echo
including configuration file /etc/freeradius/modules/policy
including configuration file /etc/freeradius/modules/sql_log
including configuration file /etc/freeradius/modules/mschap
including configuration file /etc/freeradius/modules/krb5
including configuration file /etc/freeradius/modules/pam
including configuration file /etc/freeradius/modules/ippool
including configuration file /etc/freeradius/modules/attr_rewrite
including configuration file /etc/freeradius/modules/etc_group
including configuration file /etc/freeradius/modules/ntlm_auth
including configuration file /etc/freeradius/modules/perl
including configuration file /etc/freeradius/modules/passwd
including configuration file /etc/freeradius/modules/mschap.save
including configuration file /etc/freeradius/modules/attr_filter
including configuration file /etc/freeradius/modules/radutmp
including configuration file /etc/freeradius/modules/preprocess
including configuration file /etc/freeradius/modules/mac2vlan
including configuration file /etc/freeradius/modules/pap
including configuration file /etc/freeradius/modules/ntlm_auth.save
including configuration file /etc/freeradius/modules/smsotp
including configuration file /etc/freeradius/modules/sqlcounter_expire_on_login
including configuration file /etc/freeradius/modules/acct_unique
including configuration file /etc/freeradius/modules/expiration
including configuration file /etc/freeradius/modules/digest
including configuration file /etc/freeradius/modules/unix
including configuration file /etc/freeradius/modules/always
including configuration file /etc/freeradius/modules/otp
including configuration file /etc/freeradius/modules/files
including configuration file /etc/freeradius/modules/smbpasswd
including configuration file /etc/freeradius/modules/inner-eap
including configuration file /etc/freeradius/modules/wimax
including configuration file /etc/freeradius/modules/linelog
including configuration file /etc/freeradius/modules/exec
including configuration file /etc/freeradius/modules/detail.log
including configuration file /etc/freeradius/modules/detail
including configuration file /etc/freeradius/modules/sradutmp
including configuration file /etc/freeradius/modules/counter
including configuration file /etc/freeradius/eap.conf
including configuration file /etc/freeradius/policy.conf
including files in directory /etc/freeradius/sites-enabled/
including configuration file /etc/freeradius/sites-enabled/default
including configuration file /etc/freeradius/sites-enabled/inner-tunnel
main {
user = "freerad"
group = "freerad"
allow_core_dumps = no
}
including dictionary file /etc/freeradius/dictionary
main {
prefix = "/usr"
localstatedir = "/var"
logdir = "/var/log/freeradius"
libdir = "/usr/lib/freeradius"
radacctdir = "/var/log/freeradius/radacct"
hostname_lookups = no
max_request_time = 30
cleanup_delay = 5
max_requests = 1024
pidfile = "/var/run/freeradius/freeradius.pid"
checkrad = "/usr/sbin/checkrad"
debug_level = 0
proxy_requests = yes
log {
stripped_names = no
auth = no
auth_badpass = no
auth_goodpass = no
}
security {
max_attributes = 200
reject_delay = 1
status_server = yes
}
}
radiusd: #### Loading Realms and Home Servers ####
proxy server {
retry_delay = 5
retry_count = 3
default_fallback = no
dead_time = 120
wake_all_if_all_dead = no
}
home_server localhost {
ipaddr = 127.0.0.1
port = 1812
type = "auth"
secret = "testing123"
response_window = 20
max_outstanding = 65536
require_message_authenticator = no
zombie_period = 40
status_check = "status-server"
ping_interval = 30
check_interval = 30
num_answers_to_alive = 3
num_pings_to_alive = 3
revive_interval = 120
status_check_timeout = 4
irt = 2
mrt = 16
mrc = 5
mrd = 30
}
home_server_pool my_auth_failover {
type = fail-over
home_server = localhost
}
realm example.com {
auth_pool = my_auth_failover
}
realm LOCAL {
}
radiusd: #### Loading Clients ####
client localhost {
ipaddr = 127.0.0.1
require_message_authenticator = no
secret = "testing123"
nastype = "other"
}
client localhost {
ipaddr = 127.0.0.1
require_message_authenticator = no
secret = "testing123"
nastype = "other"
}
WARNING: Ignoring duplicate client 127.0.0.1
client "Cisco AP's IP address" {
require_message_authenticator = no
secret = "alejandro"
shortname = "cisco_ap1100"
nastype = "cisco"
}
client 129.90.73.0 {
require_message_authenticator = no
secret = "alejandro"
nastype = "cisco"
}
radiusd: #### Instantiating modules ####
instantiate {
Module: Linked to module rlm_exec
Module: Instantiating exec
exec {
wait = no
input_pairs = "request"
shell_escape = yes
}
Module: Linked to module rlm_expr
Module: Instantiating expr
Module: Linked to module rlm_expiration
Module: Instantiating expiration
expiration {
reply-message = "Password Has Expired "
}
Module: Linked to module rlm_logintime
Module: Instantiating logintime
logintime {
reply-message = "You are calling outside your allowed timespan "
minimum-timeout = 60
}
}
radiusd: #### Loading Virtual Servers ####
server inner-tunnel {
modules {
Module: Checking authenticate {...} for more modules to load
Module: Instantiating ntlm_auth
exec ntlm_auth {
wait = yes
program = "/usr/bin/ntlm_auth --request-nt-key --domain=MyDOMAIN --username=%{mschap:User-Name} --password=%{User-Password}"
input_pairs = "request"
shell_escape = yes
}
Module: Linked to module rlm_pap
Module: Instantiating pap
pap {
encryption_scheme = "auto"
auto_header = no
}
Module: Linked to module rlm_chap
Module: Instantiating chap
Module: Linked to module rlm_mschap
Module: Instantiating mschap
mschap {
use_mppe = yes
require_encryption = no
require_strong = no
with_ntdomain_hack = yes
ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key --username=%{%{Stripped-User-Name}:-%{User-Name:-None}} --challenge=%{mschap:Challenge:-00} --nt-response=%{mschap:NT-Response:-00}"
}
Module: Linked to module rlm_unix
Module: Instantiating unix
unix {
radwtmp = "/var/log/freeradius/radwtmp"
}
Module: Linked to module rlm_eap
Module: Instantiating eap
eap {
default_eap_type = "peap"
timer_expire = 60
ignore_unknown_eap_types = no
cisco_accounting_username_bug = no
max_sessions = 4096
}
Module: Linked to sub-module rlm_eap_md5
Module: Instantiating eap-md5
Module: Linked to sub-module rlm_eap_leap
Module: Instantiating eap-leap
Module: Linked to sub-module rlm_eap_gtc
Module: Instantiating eap-gtc
gtc {
challenge = "Password: "
auth_type = "PAP"
}
Module: Linked to sub-module rlm_eap_tls
Module: Instantiating eap-tls
tls {
rsa_key_exchange = no
dh_key_exchange = yes
rsa_key_length = 512
dh_key_length = 512
verify_depth = 0
pem_file_type = yes
private_key_file = "/etc/freeradius/certs/server_keycert.pem"
certificate_file = "/etc/freeradius/certs/server_keycert.pem"
CA_file = "/etc/freeradius/certs/cacert.pem"
private_key_password = "whatever"
dh_file = "/etc/freeradius/certs/dh"
random_file = "/etc/freeradius/certs/random"
fragment_size = 1024
include_length = yes
check_crl = no
check_cert_cn = "%{User-Name}"
cipher_list = "DEFAULT"
make_cert_command = "/etc/freeradius/certs/bootstrap"
cache {
enable = no
lifetime = 24
max_entries = 255
}
}
Module: Linked to sub-module rlm_eap_ttls
Module: Instantiating eap-ttls
ttls {
default_eap_type = "peap"
copy_request_to_tunnel = no
use_tunneled_reply = no
virtual_server = "inner-tunnel"
include_length = yes
}
Module: Linked to sub-module rlm_eap_peap
Module: Instantiating eap-peap
peap {
default_eap_type = "mschapv2"
copy_request_to_tunnel = no
use_tunneled_reply = no
proxy_tunneled_request_as_eap = yes
virtual_server = "inner-tunnel"
}
Module: Linked to sub-module rlm_eap_mschapv2
Module: Instantiating eap-mschapv2
mschapv2 {
with_ntdomain_hack = no
}
Module: Checking authorize {...} for more modules to load
Module: Linked to module rlm_realm
Module: Instantiating suffix
realm suffix {
format = "suffix"
delimiter = "@"
ignore_default = no
ignore_null = no
}
Module: Linked to module rlm_files
Module: Instantiating files
files {
usersfile = "/etc/freeradius/users"
acctusersfile = "/etc/freeradius/acct_users"
preproxy_usersfile = "/etc/freeradius/preproxy_users"
compat = "no"
}
Module: Checking session {...} for more modules to load
Module: Linked to module rlm_radutmp
Module: Instantiating radutmp
radutmp {
filename = "/var/log/freeradius/radutmp"
username = "%{User-Name}"
case_sensitive = yes
check_with_nas = yes
perm = 384
callerid = yes
}
Module: Checking post-proxy {...} for more modules to load
Module: Checking post-auth {...} for more modules to load
Module: Linked to module rlm_attr_filter
Module: Instantiating attr_filter.access_reject
attr_filter attr_filter.access_reject {
attrsfile = "/etc/freeradius/attrs.access_reject"
key = "%{User-Name}"
}
} # modules
} # server
server {
modules {
Module: Checking authenticate {...} for more modules to load
Module: Checking authorize {...} for more modules to load
Module: Linked to module rlm_preprocess
Module: Instantiating preprocess
preprocess {
huntgroups = "/etc/freeradius/huntgroups"
hints = "/etc/freeradius/hints"
with_ascend_hack = no
ascend_channels_per_line = 23
with_ntdomain_hack = no
with_specialix_jetstream_hack = no
with_cisco_vsa_hack = no
with_alvarion_vsa_hack = no
}
Module: Checking preacct {...} for more modules to load
Module: Linked to module rlm_acct_unique
Module: Instantiating acct_unique
acct_unique {
key = "User-Name, Acct-Session-Id, NAS-IP-Address, Client-IP-Address, NAS-Port"
}
Module: Checking accounting {...} for more modules to load
Module: Linked to module rlm_detail
Module: Instantiating detail
detail {
detailfile = "/var/log/freeradius/radacct/%{Client-IP-Address}/detail-%Y%m%d"
header = "%t"
detailperm = 384
dirperm = 493
locking = no
log_packet_header = no
}
Module: Instantiating attr_filter.accounting_response
attr_filter attr_filter.accounting_response {
attrsfile = "/etc/freeradius/attrs.accounting_response"
key = "%{User-Name}"
}
Module: Checking session {...} for more modules to load
Module: Checking post-proxy {...} for more modules to load
Module: Checking post-auth {...} for more modules to load
} # modules
} # server
radiusd: #### Opening IP addresses and Ports ####
listen {
type = "auth"
ipaddr = *
port = 0
}
listen {
type = "acct"
ipaddr = *
port = 0
}
Listening on authentication address * port 1645
Listening on accounting address * port 1646
Listening on proxy address * port 1647
Ready to process requests.
rad_recv: Access-Request packet from host "Cisco AP's IP address" port 1645, id=55, length=236
User-Name = "MyDOMAIN\\ORTEGACA"
Framed-MTU = 1400
Called-Station-Id = "0040.96a0.088f"
Calling-Station-Id = "001f.3c28.46f3"
Service-Type = Login-User
Message-Authenticator = 0xe43ae3c3e67164ede561a0c37dd2b6e9
EAP-Message = 0x0203005019800000004616030100410100003d03014baba5286a0713455be389a185e990e164e70a5b93f45a52ebe45aaa1b85184000001600040005000a000900640062000300060013001200630100
NAS-Port-Type = Wireless-802.11
NAS-Port = 3127
State = 0x89f4148c89f70db4f66551dcf5baf778
NAS-IP-Address = "Cisco AP's IP address"
NAS-Identifier = "mw-ltqN1-P3-01"
+- entering group authorize {...}
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
[suffix] No '@' in User-Name = "MyDOMAIN\ORTEGACA", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] returns noop
[eap] EAP packet type response id 3 length 80
[eap] Continuing tunnel setup.
++[eap] returns ok
Found Auth-Type = EAP
+- entering group authenticate {...}
[eap] Request found, released from the list
[eap] EAP/peap
[eap] processing type peap
[peap] processing EAP-TLS
TLS Length 70
[peap] Length Included
[peap] eaptls_verify returned 11
[peap] (other): before/accept initialization
[peap] TLS_accept: before/accept initialization
[peap] <<< TLS 1.0 Handshake [length 0041], ClientHello
[peap] TLS_accept: SSLv3 read client hello A
[peap] >>> TLS 1.0 Handshake [length 002a], ServerHello
[peap] TLS_accept: SSLv3 write server hello A
[peap] >>> TLS 1.0 Handshake [length 05e9], Certificate
[peap] TLS_accept: SSLv3 write certificate A
[peap] >>> TLS 1.0 Handshake [length 0004], ServerHelloDone
[peap] TLS_accept: SSLv3 write server done A
[peap] TLS_accept: SSLv3 flush data
[peap] TLS_accept: Need to read more data: SSLv3 read client certificate A
In SSL Handshake Phase
In SSL Accept mode
[peap] eaptls_process returned 13
[peap] EAPTLS_HANDLED
++[eap] returns handled
Sending Access-Challenge of id 55 to "Cisco AP's IP address" port 1645
EAP-Message = 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
EAP-Message = 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
EAP-Message = 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
EAP-Message = 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
EAP-Message = 0x67613121301f06092a864886
Message-Authenticator = 0x00000000000000000000000000000000
State = 0x89f4148c88f00db4f66551dcf5baf778
My /etc/freeradius/modules/mschap file is:
mschap {
with_ntdomain_hack = yes
ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key --username=%{mschap:User-Name:-None} --domain=%{%{mschap:NT-Domain}:-PDVSA2000} --challenge=%{mschap:Challenge:-00} --nt-response=%{mschap:NT-Response:-00}"
}
eap.conf
eap {
default_eap_type = peap
tls {
certdir = ${confdir}/certs
cadir = ${confdir}/certs
private_key_password = whatever
private_key_file = ${certdir}/server_keycert.pem
certificate_file = ${certdir}/server_keycert.pem
CA_file = ${cadir}/cacert.pem
dh_file = ${certdir}/dh
random_file = ${certdir}/random
fragment_size = 1024
include_length = yes
check_cert_cn = %{User-Name}
cipher_list = "DEFAULT"
}
}
Everything is default. The question is: Why EAP - PEAP with ntlm_auth does not works? I feel I am pretty close to get my freeradius server works... :-(
Thank you,
Cesar
From: cesar8489 at hotmail.com
To: freeradius-users at lists.freeradius.org
Subject: RE: EAP (PEAP)+ntlm_auth doesn't send password by it self
Date: Mon, 22 Mar 2010 19:49:41 -0400
Hi Alan,
> Date: Sun, 21 Mar 2010 16:19:28 +0000
> From: A.L.M.Buxey at lboro.ac.uk
> To: freeradius-users at lists.freeradius.org
> Subject: Re: EAP (PEAP)+ntlm_auth doesn't send password by it self
>
> Hi,
>
> > [ntlm_auth] WARNING: Deprecated conditional expansion ":-". See "man unlang" for details
> > [ntlm_auth] ... expanding second conditional
>
> you still havent fixed that basic thing - check out the default config from
> the 2.1.8 tarball
Today I tried unsuccessful to figure out how solve the ":-" issue. I read "man unlang" but I could not find anything...
> > [ntlm_auth] No MS-CHAP-Challenge in the request.
> > [ntlm_auth] expand: --challenge=%{mschap:Challenge:-00} -> --challenge=
> > [ntlm_auth] No MS-CHAP-Response or MS-CHAP2-Response was found in the request.
> > [ntlm_auth] expand: --nt-response=%{mschap:NT-Response:-00} -> --nt-response=
> > hex decode of failed! (only got 0 bytes)
>
> okay - so no challenge in the request - so what type of EAP authentication
> are you doing?
I have been thinking it could be by a wrong configuration of the Cisco AP 1100. I will follow the instructions described at http://www.cisco.com/en/US/products/hw/wireless/ps4570/products_configuration_example09186a00801c40b6.shtml#NetEAP
However, I just want to do transparent authentications using PEAP with Microsoft Challenge Authentication Protocol (MS-CHAP) Version 2 without certificates (have you a recipe?)(http://cisco.com/en/US/prod/collateral/wireless/ps5678/ps430/prod_qas0900aecd801764f1_ps4570_Products_Q_and_A_Item.html)
I will let you know as soon as put my hands in action again.
Cesar
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