EAP-TLS User-Name not matching
Huckle Berry
huck.berry at gmail.com
Sun Jan 17 00:45:03 CET 2010
First off, forgive me if this has been asked before on this list (I did do a
search first, yet no results proved useful).
I am on a fact finding mission to see whether freeradius is going to be
feasible to deploy in my environment (~50 users over ~40 windows and linux
desktops). On a test network I have configured an Ubuntu 9.10 Server with a
patched freeradius that has openssl (oh what fun that was to build).
I have so far altered the original configuration by only a few lines, as
everywhere I go I see Alan screaming "Don't change the config!". I changed
eap.conf by the following
default_eap_type = tls
...
fragment_size = 1024
include_length = yes
I also changed users to include a few lines, most of which are incorrect,
one of which may be correct (but I'm not sure). I added them one at a time
in case one did the trick, but no such luck.
example.com/user
user at example.com
host/user
winlaptop/user
WinLaptop/user
I also edited client.conf to include my NAS (pretty standard change so I'm
not going to detail it)
The issue is when a windows client (A user by the name of user on a laptop
named WinLaptop) attempts to connect, it cannot Authenticate. The error
seems to be that the user name doesn't match between something and the TLS
attrtibute. I would love more info on what this implies and how TLS and
Radius work with each other.
I get the following radiusd -X output: (sorry for the length)
FreeRADIUS Version 2.1.8, for host i486-pc-linux-gnu, built on Jan 15 2010
at 23:02:23
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/detail
including configuration file /etc/freeradius/modules/passwd
including configuration file /etc/freeradius/modules/cui
including configuration file /etc/freeradius/modules/attr_rewrite
including configuration file /etc/freeradius/modules/pam
including configuration file /etc/freeradius/modules/expiration
including configuration file /etc/freeradius/modules/etc_group
including configuration file /etc/freeradius/modules/counter
including configuration file /etc/freeradius/modules/checkval
including configuration file /etc/freeradius/modules/digest
including configuration file /etc/freeradius/modules/otp
including configuration file /etc/freeradius/modules/echo
including configuration file
/etc/freeradius/modules/sqlcounter_expire_on_login
including configuration file /etc/freeradius/modules/logintime
including configuration file /etc/freeradius/modules/ldap
including configuration file /etc/freeradius/modules/ippool
including configuration file /etc/freeradius/modules/policy
including configuration file /etc/freeradius/modules/acct_unique
including configuration file /etc/freeradius/modules/sql_log
including configuration file /etc/freeradius/modules/sradutmp
including configuration file /etc/freeradius/modules/realm
including configuration file /etc/freeradius/modules/preprocess
including configuration file /etc/freeradius/modules/expr
including configuration file /etc/freeradius/modules/radutmp
including configuration file /etc/freeradius/modules/perl
including configuration file /etc/freeradius/modules/files
including configuration file /etc/freeradius/modules/exec
including configuration file /etc/freeradius/modules/smbpasswd
including configuration file /etc/freeradius/modules/mschap
including configuration file /etc/freeradius/modules/smsotp
including configuration file /etc/freeradius/modules/detail.example.com
including configuration file /etc/freeradius/modules/attr_filter
including configuration file /etc/freeradius/modules/ntlm_auth
including configuration file /etc/freeradius/modules/krb5
including configuration file /etc/freeradius/modules/always
including configuration file /etc/freeradius/modules/pap
including configuration file /etc/freeradius/modules/inner-eap
including configuration file /etc/freeradius/modules/mac2ip
including configuration file /etc/freeradius/modules/unix
including configuration file /etc/freeradius/modules/detail.log
including configuration file /etc/freeradius/modules/linelog
including configuration file /etc/freeradius/modules/mac2vlan
including configuration file /etc/freeradius/modules/chap
including configuration file /etc/freeradius/modules/wimax
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 192.168.1.1 {
ipaddr = 192.168.1.1
require_message_authenticator = no
secret = "secret123"
shortname = "AP"
}
client localhost {
ipaddr = 127.0.0.1
require_message_authenticator = no
secret = "testing123"
nastype = "other"
}
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: 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 = no
}
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 = "tls"
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.key"
certificate_file = "/etc/freeradius/certs/server.pem"
CA_file = "/etc/freeradius/certs/ca.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
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 = "md5"
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 1812
Listening on accounting address * port 1813
Listening on proxy address * port 1814
Ready to process requests.
rad_recv: Access-Request packet from host 192.168.1.1 port 3079, id=0,
length=145
User-Name = "user at example.com"
NAS-IP-Address = 192.168.1.1
Called-Station-Id = "0016b6e2cc20"
Calling-Station-Id = "00904b1f9671"
NAS-Identifier = "0016b6e2cc20"
NAS-Port = 56
Framed-MTU = 1400
NAS-Port-Type = Wireless-802.11
EAP-Message = 0x020000150175736572406578616d706c652e636f6d
Message-Authenticator = 0x6e28f191648ccbe2be4c4354a7975433
+- entering group authorize {...}
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
[suffix] Looking up realm "example.com" for User-Name = "user at example.com"
[suffix] Found realm "example.com"
[suffix] Adding Stripped-User-Name = "user"
[suffix] Adding Realm = "example.com"
[suffix] Proxying request from user user to realm example.com
[suffix] Preparing to proxy authentication request to realm "example.com"
++[suffix] returns updated
[eap] Request is supposed to be proxied to Realm example.com. Not doing
EAP.
++[eap] returns noop
++[unix] returns notfound
++[files] returns noop
++[expiration] returns noop
++[logintime] returns noop
++[pap] returns noop
WARNING: Empty section. Using default return values.
Sending Access-Request of id 139 to 127.0.0.1 port 1812
User-Name = "user"
NAS-IP-Address = 192.168.1.1
Called-Station-Id = "0016b6e2cc20"
Calling-Station-Id = "00904b1f9671"
NAS-Identifier = "0016b6e2cc20"
NAS-Port = 56
Framed-MTU = 1400
NAS-Port-Type = Wireless-802.11
EAP-Message = 0x020000150175736572406578616d706c652e636f6d
Message-Authenticator = 0x00000000000000000000000000000000
Proxy-State = 0x30
Proxying request 0 to home server 127.0.0.1 port 1812
Sending Access-Request of id 139 to 127.0.0.1 port 1812
User-Name = "user"
NAS-IP-Address = 192.168.1.1
Called-Station-Id = "0016b6e2cc20"
Calling-Station-Id = "00904b1f9671"
NAS-Identifier = "0016b6e2cc20"
NAS-Port = 56
Framed-MTU = 1400
NAS-Port-Type = Wireless-802.11
EAP-Message = 0x020000150175736572406578616d706c652e636f6d
Message-Authenticator = 0x00000000000000000000000000000000
Proxy-State = 0x30
Going to the next request
Waking up in 0.9 seconds.
rad_recv: Access-Request packet from host 127.0.0.1 port 1814, id=139,
length=136
User-Name = "user"
NAS-IP-Address = 192.168.1.1
Called-Station-Id = "0016b6e2cc20"
Calling-Station-Id = "00904b1f9671"
NAS-Identifier = "0016b6e2cc20"
NAS-Port = 56
Framed-MTU = 1400
NAS-Port-Type = Wireless-802.11
EAP-Message = 0x020000150175736572406578616d706c652e636f6d
Message-Authenticator = 0xa892984cce17699fd5732b0db2faf7a8
Proxy-State = 0x30
+- entering group authorize {...}
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
[suffix] No '@' in User-Name = "user", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] returns noop
[eap] EAP packet type response id 0 length 21
[eap] No EAP Start, assuming it's an on-going EAP conversation
++[eap] returns updated
++[unix] returns notfound
++[files] returns noop
++[expiration] returns noop
++[logintime] returns noop
[pap] WARNING! No "known good" password found for the user. Authentication
may fail because of this.
++[pap] returns noop
Found Auth-Type = EAP
+- entering group authenticate {...}
[eap] Identity does not match User-Name, setting from EAP Identity.
[eap] Failed in handler
++[eap] returns invalid
Failed to authenticate the user.
Using Post-Auth-Type Reject
+- entering group REJECT {...}
[attr_filter.access_reject] expand: %{User-Name} -> user
attr_filter: Matched entry DEFAULT at line 11
++[attr_filter.access_reject] returns updated
Delaying reject of request 1 for 1 seconds
Going to the next request
Waking up in 0.9 seconds.
Sending delayed reject for request 1
Sending Access-Reject of id 139 to 127.0.0.1 port 1814
Proxy-State = 0x30
Waking up in 4.9 seconds.
rad_recv: Access-Reject packet from host 127.0.0.1 port 1812, id=139,
length=23
Proxy-State = 0x30
+- entering group post-proxy {...}
[eap] No pre-existing handler found
++[eap] returns noop
Using Post-Auth-Type Reject
+- entering group REJECT {...}
[attr_filter.access_reject] expand: %{User-Name} -> user at example.com
attr_filter: Matched entry DEFAULT at line 11
++[attr_filter.access_reject] returns updated
Sending Access-Reject of id 0 to 192.168.1.1 port 3079
Finished request 0.
Going to the next request
Waking up in 4.9 seconds.
Cleaning up request 1 ID 139 with timestamp +8
Cleaning up request 0 ID 0 with timestamp +8
Ready to process requests.
Thanks in advance for any help!
~Huckle Berry
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