pam Google authenticator and Ldap
Joshua Elcik
jelcik at hotmail.com
Fri Dec 5 17:24:00 CET 2014
Running FreeRADIUS Version 2.1.10, for host x86_64-pc-linux-gnu installed on
Ubuntu 12.04
I've got ldap working correctly and its searching within Active Directory
groups to make sure that the person is in particular group to get an Accept
message.
What I'm looking to do, and this is where I need help and maybe its not even
possible, but I ideally I want to be able to configure my cisco ASA to use
the FreeRadius server to do dual authentication using ldap and the Google
authenticator, so is this even really possible.
So the flow would look like - user logins into the anyconnect client using
active directory creds, FreeRadius would check to make sure that user is in
a certain group, vpn or vpnadmin. If the user is in the group that user
would then be prompted for the Google Auth digits and if the user entered
that in correctly the user would be allowed to connect to the vpn.
I understand I would have to use PAM in order for the Google authenticator
to work but is this something that has to happen in the post-auth?
root at freerad01:/etc/freeradius# freeradius -X
FreeRADIUS Version 2.1.10, for host x86_64-pc-linux-gnu, built on Feb 24
2014 at 15:16:50
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/passwd
including configuration file /etc/freeradius/modules/inner-eap
including configuration file /etc/freeradius/modules/pap
including configuration file /etc/freeradius/modules/unix
including configuration file /etc/freeradius/modules/checkval
including configuration file /etc/freeradius/modules/ntlm_auth
including configuration file /etc/freeradius/modules/attr_filter
including configuration file /etc/freeradius/modules/perl
including configuration file /etc/freeradius/modules/acct_unique
including configuration file /etc/freeradius/modules/counter
including configuration file /etc/freeradius/modules/policy
including configuration file /etc/freeradius/modules/files
including configuration file /etc/freeradius/modules/realm
including configuration file /etc/freeradius/modules/pam
including configuration file /etc/freeradius/modules/cui
including configuration file /etc/freeradius/modules/preprocess
including configuration file /etc/freeradius/modules/expr
including configuration file /etc/freeradius/modules/ippool
including configuration file /etc/freeradius/modules/krb5
including configuration file /etc/freeradius/modules/wimax
including configuration file /etc/freeradius/modules/logintime
including configuration file /etc/freeradius/modules/detail
including configuration file /etc/freeradius/modules/exec
including configuration file /etc/freeradius/modules/linelog
including configuration file /etc/freeradius/modules/otp
including configuration file /etc/freeradius/modules/mac2vlan
including configuration file /etc/freeradius/modules/ldap
including configuration file /etc/freeradius/modules/always
including configuration file /etc/freeradius/modules/digest
including configuration file /etc/freeradius/modules/attr_rewrite
including configuration file /etc/freeradius/modules/etc_group
including configuration file /etc/freeradius/modules/detail.example.com
including configuration file /etc/freeradius/modules/sradutmp
including configuration file /etc/freeradius/modules/dynamic_clients
including configuration file /etc/freeradius/modules/opendirectory
including configuration file
/etc/freeradius/modules/sqlcounter_expire_on_login
including configuration file /etc/freeradius/modules/expiration
including configuration file /etc/freeradius/modules/sql_log
including configuration file /etc/freeradius/modules/radutmp
including configuration file /etc/freeradius/modules/chap
including configuration file /etc/freeradius/modules/echo
including configuration file /etc/freeradius/modules/detail.log
including configuration file /etc/freeradius/modules/smbpasswd
including configuration file /etc/freeradius/modules/smsotp
including configuration file /etc/freeradius/modules/mac2ip
including configuration file /etc/freeradius/modules/mschap
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/inner-tunnel
including configuration file /etc/freeradius/sites-enabled/default
main {
user = "root"
group = "root"
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 = yes
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 10.10.10.0/24 {
require_message_authenticator = no
secret = "testing123"
nastype = "other"
}
radiusd: #### Instantiating modules ####
instantiate {
Module: Linked to module rlm_exec
Module: Instantiating module "exec" from file /etc/freeradius/modules/exec
exec {
wait = no
input_pairs = "request"
shell_escape = yes
}
Module: Linked to module rlm_expr
Module: Instantiating module "expr" from file /etc/freeradius/modules/expr
Module: Linked to module rlm_expiration
Module: Instantiating module "expiration" from file
/etc/freeradius/modules/expiration
expiration {
reply-message = "Password Has Expired "
}
Module: Linked to module rlm_logintime
Module: Instantiating module "logintime" from file
/etc/freeradius/modules/logintime
logintime {
reply-message = "You are calling outside your allowed timespan "
minimum-timeout = 60
}
}
radiusd: #### Loading Virtual Servers ####
server inner-tunnel { # from file /etc/freeradius/sites-enabled/inner-tunnel
modules {
Module: Checking authenticate {...} for more modules to load
Module: Linked to module rlm_chap
Module: Instantiating module "chap" from file /etc/freeradius/modules/chap
Module: Linked to module rlm_mschap
Module: Instantiating module "mschap" from file
/etc/freeradius/modules/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=%{mschap:User-Name:-None}
--domain=%{%{mschap:NT-Domain}:-NEXTPT.COM}
--challenge=%{mschap:Challenge:-00} --nt-response=%{mschap:NT-Response:-00}"
}
Module: Linked to module rlm_pam
Module: Instantiating module "pam" from file /etc/freeradius/modules/pam
pam {
pam_auth = "radiusd"
}
Module: Linked to module rlm_unix
Module: Instantiating module "unix" from file /etc/freeradius/modules/unix
unix {
radwtmp = "/var/log/freeradius/radwtmp"
}
Module: Linked to module rlm_ldap
Module: Instantiating module "ldap" from file /etc/freeradius/modules/ldap
ldap {
server = "10.10.10.110"
port = 389
password = "password"
identity = "cn=Account,ou=Next Point,dc=nextpt,dc=com"
net_timeout = 1
timeout = 4
timelimit = 3
tls_mode = no
start_tls = no
tls_require_cert = "allow"
tls {
start_tls = no
require_cert = "allow"
}
basedn = "ou=Next Point,dc=nextpt,dc=com"
filter = "(sAMAccountName=%{Stripped-User-Name:-%{User-Name}})"
base_filter = "(objectclass=radiusprofile)"
auto_header = no
access_attr_used_for_allow = yes
chase_referrals = yes
rebind = yes
groupname_attribute = "cn"
groupmembership_filter =
"(|(&(objectClass=GroupOfNames)(member=%{control:Ldap-UserDn}))(&(objectClas
s=GroupOfUniqueNames)(uniquemember=%{control:Ldap-UserDn})))"
groupmembership_attribute = "memberOf"
dictionary_mapping = "/etc/freeradius/ldap.attrmap"
ldap_debug = 0
ldap_connections_number = 5
compare_check_items = no
do_xlat = yes
edir_account_policy_check = no
set_auth_type = yes
}
rlm_ldap: Registering ldap_groupcmp for Ldap-Group
rlm_ldap: Registering ldap_xlat with xlat_name ldap
rlm_ldap: reading ldap<->radius mappings from file
/etc/freeradius/ldap.attrmap
rlm_ldap: LDAP radiusCheckItem mapped to RADIUS $GENERIC$
rlm_ldap: LDAP radiusReplyItem mapped to RADIUS $GENERIC$
rlm_ldap: LDAP radiusAuthType mapped to RADIUS Auth-Type
rlm_ldap: LDAP radiusSimultaneousUse mapped to RADIUS Simultaneous-Use
rlm_ldap: LDAP radiusCalledStationId mapped to RADIUS Called-Station-Id
rlm_ldap: LDAP radiusCallingStationId mapped to RADIUS Calling-Station-Id
rlm_ldap: LDAP lmPassword mapped to RADIUS LM-Password
rlm_ldap: LDAP ntPassword mapped to RADIUS NT-Password
rlm_ldap: LDAP sambaLmPassword mapped to RADIUS LM-Password
rlm_ldap: LDAP sambaNtPassword mapped to RADIUS NT-Password
rlm_ldap: LDAP dBCSPwd mapped to RADIUS LM-Password
rlm_ldap: LDAP userPassword mapped to RADIUS Password-With-Header
rlm_ldap: LDAP acctFlags mapped to RADIUS SMB-Account-CTRL-TEXT
rlm_ldap: LDAP radiusExpiration mapped to RADIUS Expiration
rlm_ldap: LDAP radiusNASIpAddress mapped to RADIUS NAS-IP-Address
rlm_ldap: LDAP radiusServiceType mapped to RADIUS Service-Type
rlm_ldap: LDAP radiusFramedProtocol mapped to RADIUS Framed-Protocol
rlm_ldap: LDAP radiusFramedIPAddress mapped to RADIUS Framed-IP-Address
rlm_ldap: LDAP radiusFramedIPNetmask mapped to RADIUS Framed-IP-Netmask
rlm_ldap: LDAP radiusFramedRoute mapped to RADIUS Framed-Route
rlm_ldap: LDAP radiusFramedRouting mapped to RADIUS Framed-Routing
rlm_ldap: LDAP radiusFilterId mapped to RADIUS Filter-Id
rlm_ldap: LDAP radiusFramedMTU mapped to RADIUS Framed-MTU
rlm_ldap: LDAP radiusFramedCompression mapped to RADIUS Framed-Compression
rlm_ldap: LDAP radiusLoginIPHost mapped to RADIUS Login-IP-Host
rlm_ldap: LDAP radiusLoginService mapped to RADIUS Login-Service
rlm_ldap: LDAP radiusLoginTCPPort mapped to RADIUS Login-TCP-Port
rlm_ldap: LDAP radiusCallbackNumber mapped to RADIUS Callback-Number
rlm_ldap: LDAP radiusCallbackId mapped to RADIUS Callback-Id
rlm_ldap: LDAP radiusFramedIPXNetwork mapped to RADIUS Framed-IPX-Network
rlm_ldap: LDAP radiusClass mapped to RADIUS Class
rlm_ldap: LDAP radiusSessionTimeout mapped to RADIUS Session-Timeout
rlm_ldap: LDAP radiusIdleTimeout mapped to RADIUS Idle-Timeout
rlm_ldap: LDAP radiusTerminationAction mapped to RADIUS Termination-Action
rlm_ldap: LDAP radiusLoginLATService mapped to RADIUS Login-LAT-Service
rlm_ldap: LDAP radiusLoginLATNode mapped to RADIUS Login-LAT-Node
rlm_ldap: LDAP radiusLoginLATGroup mapped to RADIUS Login-LAT-Group
rlm_ldap: LDAP radiusFramedAppleTalkLink mapped to RADIUS
Framed-AppleTalk-Link
rlm_ldap: LDAP radiusFramedAppleTalkNetwork mapped to RADIUS
Framed-AppleTalk-Network
rlm_ldap: LDAP radiusFramedAppleTalkZone mapped to RADIUS
Framed-AppleTalk-Zone
rlm_ldap: LDAP radiusPortLimit mapped to RADIUS Port-Limit
rlm_ldap: LDAP radiusLoginLATPort mapped to RADIUS Login-LAT-Port
rlm_ldap: LDAP radiusReplyMessage mapped to RADIUS Reply-Message
rlm_ldap: LDAP radiusTunnelType mapped to RADIUS Tunnel-Type
rlm_ldap: LDAP radiusTunnelMediumType mapped to RADIUS Tunnel-Medium-Type
rlm_ldap: LDAP radiusTunnelPrivateGroupId mapped to RADIUS
Tunnel-Private-Group-Id
conns: 0x8e5da0
Module: Linked to module rlm_eap
Module: Instantiating module "eap" from file /etc/freeradius/eap.conf
eap {
default_eap_type = "mschapv2"
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
CA_path = "/etc/freeradius/certs"
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 = "/dev/urandom"
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
}
verify {
}
}
Module: Linked to sub-module rlm_eap_ttls
Module: Instantiating eap-ttls
ttls {
default_eap_type = "mschapv2"
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_files
Module: Instantiating module "files" from file /etc/freeradius/modules/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 module "radutmp" from file
/etc/freeradius/modules/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 module "attr_filter.access_reject" from file
/etc/freeradius/modules/attr_filter
attr_filter attr_filter.access_reject {
attrsfile = "/etc/freeradius/attrs.access_reject"
key = "%{User-Name}"
}
} # modules
} # server
server { # from file /etc/freeradius/radiusd.conf
modules {
Module: Checking authenticate {...} for more modules to load
Module: Linked to module rlm_pap
Module: Instantiating module "pap" from file /etc/freeradius/modules/pap
pap {
encryption_scheme = "auto"
auto_header = no
}
Module: Linked to module rlm_digest
Module: Instantiating module "digest" from file
/etc/freeradius/modules/digest
Module: Checking authorize {...} for more modules to load
Module: Checking preacct {...} for more modules to load
Module: Linked to module rlm_preprocess
Module: Instantiating module "preprocess" from file
/etc/freeradius/modules/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: Linked to module rlm_acct_unique
Module: Instantiating module "acct_unique" from file
/etc/freeradius/modules/acct_unique
acct_unique {
key = "User-Name, Acct-Session-Id, NAS-IP-Address,
Client-IP-Address, NAS-Port"
}
Module: Linked to module rlm_realm
Module: Instantiating module "suffix" from file
/etc/freeradius/modules/realm
realm suffix {
format = "suffix"
delimiter = "@"
ignore_default = no
ignore_null = no
}
Module: Checking accounting {...} for more modules to load
Module: Linked to module rlm_detail
Module: Instantiating module "detail" from file
/etc/freeradius/modules/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 module "attr_filter.accounting_response" from file
/etc/freeradius/modules/attr_filter
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
}
listen {
type = "auth"
ipaddr = 127.0.0.1
port = 18120
}
Listening on authentication address * port 1812
Listening on accounting address * port 1813
Listening on authentication address 127.0.0.1 port 18120 as server
inner-tunnel
Listening on proxy address * port 1814
Ready to process requests.
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