Re: How to proxy password from TTLS

2 Nov 2007

      Am 02.11.2007 um 14:58 schrieb Alan DeKok:
...
Does the tunnel contain a clear-text password?  Debug mode will show 
this.
...
What do I have to change, to use the password transmitted in the
TTLS-Tunnel? Or do I have fundamental errors in my idea of how to do 
this?
Run the server in debugging mode to see what it's doing, and post the
output here.
The output:

mac339:~ system$ sudo radiusd -X
FreeRADIUS Version 2.0.0-pre2, for host powerpc-apple-darwin8.10.0, 
built on Oct  5 2007 at 16:14:01
Copyright (C) 2000-2007 The FreeRADIUS server project.
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.
Config:   including file: //etc/raddb/radiusd.conf
Config:   including file: //etc/raddb/proxy.conf
Config:   including file: //etc/raddb/clients.conf
Config:   including file: //etc/raddb/snmp.conf
Config:   including file: //etc/raddb/eap.conf
Config:   including file: //etc/raddb/sql.conf
Config:   including file: //etc/raddb/sql/mysql/dialup.conf
Config:   including file: //etc/raddb/sql/mysql/counter.conf
Config:   including files in directory: //etc/raddb/sites-enabled/
Config:   including file: //etc/raddb/sites-enabled/default
Starting - reading configuration files ...
read_config_files:  reading dictionary
main {
         prefix = "/"
         localstatedir = "//var"
         logdir = "//var/log/radius"
         libdir = "//lib"
         radacctdir = "//var/log/radius/radacct"
         hostname_lookups = no
         max_request_time = 30
         cleanup_delay = 5
         max_requests = 1024
         allow_core_dumps = no
         log_stripped_names = no
         log_file = "//var/log/radius/radius.log"
         log_auth = no
         log_auth_badpass = no
         log_auth_goodpass = no
         pidfile = "//var/run/radiusd/radiusd.pid"
         checkrad = "//sbin/checkrad"
         debug_level = 0
         proxy_requests = yes
  log {
         syslog_facility = "daemon"
  }
  proxy server {
         retry_delay = 5
         retry_count = 3
         default_fallback = no
         dead_time = 120
         wake_all_if_all_dead = no
  }
  security {
         max_attributes = 200
         reject_delay = 1
         status_server = yes
  }
}
  home_server dras_server {
         ipaddr = XXX.XXX.XXX.XXX IP address [XXX.XXX.XXX.XXX]
         port = 1645
         type = "auth"
         secret = "XXX"
         response_window = 20
         max_outstanding = 65536
         zombie_period = 40
         status_check = "none"
         ping_check = "none"
         ping_interval = 30
         check_interval = 30
         num_answers_to_alive = 3
         num_pings_to_alive = 3
         revive_interval = 120
         status_check_timeout = 4
  }
  server_pool dras_pool {
         type = fail-over
         home_server = dras_server
  }
  realm dras {
         auth_pool = dras_pool
  }
  home_server localhost {
         ipaddr = 127.0.0.1 IP address [127.0.0.1]
         port = 1812
         type = "auth"
         secret = "testing123"
         response_window = 20
         max_outstanding = 65536
         zombie_period = 40
         status_check = "status-server"
         ping_check = "none"
         ping_interval = 30
         check_interval = 30
         num_answers_to_alive = 3
         num_pings_to_alive = 3
         revive_interval = 120
         status_check_timeout = 4
  }
  server_pool my_auth_failover {
         type = fail-over
         home_server = localhost
  }
  realm example.com {
         auth_pool = my_auth_failover
  }
  realm LOCAL {
  }
  listen {
         type = "auth"
         ipaddr = *
         port = 0
  client 192.168.1.24 {
         secret = "XXX.XXX.XXX.XXX"
         shortname = "netgear1"
  }
  client 192.168.1.132 {
         secret = "XXX.XXX.XXX.XXX"
         shortname = "netgear2"
  }
  client 192.168.1.133 {
         secret = "XXX.XXX.XXX.XXX"
         shortname = "netgear3"
  }
  }
  listen {
         type = "acct"
         ipaddr = *
         port = 0
  }
radiusd:  entering modules setup
radiusd: Library search path is /lib
  instantiate {
  Module: Linked to module rlm_exec
  Module: Instantiating exec
   exec {
         wait = yes
         input_pairs = "request"
         shell_escape = yes
   }
rlm_exec: wait=yes but no output defined. Did you mean output=none?
  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
   }
  }
server {
  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
         use_open_directory = yes
   }
  Module: Linked to module rlm_unix
  Module: Instantiating unix
   unix {
         radwtmp = "//var/log/radius/radwtmp"
   }
  Module: Linked to module rlm_eap
  Module: Instantiating eap
   eap {
         default_eap_type = "md5"
         timer_expire = 60
         ignore_unknown_eap_types = no
         cisco_accounting_username_bug = no
   }
   eap: Linked to sub-module rlm_eap_md5
   eap: Instantiating eap-md5
   eap: Linked to sub-module rlm_eap_leap
   eap: Instantiating eap-leap
   eap: Linked to sub-module rlm_eap_gtc
   eap: Instantiating eap-gtc
    gtc {
         challenge = "Password: "
         auth_type = "PAP"
    }
   eap: Linked to sub-module rlm_eap_tls
   eap: 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/1x/Mac339.pem"
         certificate_file = "/etc/1x/Mac339.pem"
         CA_file = "/etc/1x/root.pem"
         private_key_password = "password"
         dh_file = "/etc/1x/DH"
         random_file = "/etc/1x/random"
         fragment_size = 1024
         include_length = yes
         check_crl = no
         cipher_list = "DEFAULT"
         make_cert_command = "/etc/1x/bootstrap"
    }
rlm_eap_tls: Loading the certificate file as a chain
WARNING: rlm_eap_tls: Unable to set DH parameters.  DH cipher suites 
may not work!
WARNING: Fix this by running the OpenSSL command listed in eap.conf
   eap: Linked to sub-module rlm_eap_ttls
   eap: Instantiating eap-ttls
    ttls {
         default_eap_type = "md5"
         copy_request_to_tunnel = no
         use_tunneled_reply = no
    }
   eap: Linked to sub-module rlm_eap_peap
   eap: Instantiating eap-peap
    peap {
         default_eap_type = "mschapv2"
         copy_request_to_tunnel = no
         use_tunneled_reply = no
         proxy_tunneled_request_as_eap = yes
    }
   eap: Linked to sub-module rlm_eap_mschapv2
   eap: Instantiating eap-mschapv2
    mschapv2 {
         with_ntdomain_hack = no
    }
  Module: Checking authorize {...} for more modules to load
  Module: Linked to module rlm_preprocess
  Module: Instantiating preprocess
   preprocess {
         huntgroups = "//etc/raddb/huntgroups"
         hints = "//etc/raddb/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_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/raddb/users"
         acctusersfile = "//etc/raddb/acct_users"
         preproxy_usersfile = "//etc/raddb/preproxy_users"
         compat = "no"
   }
  Module: Linked to module rlm_passwd
  Module: Instantiating userlist
   passwd userlist {
         filename = "/etc/raddb/userlist"
         format = "*User-Name:User-Password"
         delimiter = ":"
         ignorenislike = yes
         ignoreempty = yes
         allowmultiplekeys = no
         hashsize = 100
   }
rlm_passwd: nfields: 2 keyfield 0(User-Name) listable: 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/radius/radacct/%{Client-IP-Address}/detail-%Y%m%d"
         header = "%t"
         detailperm = 384
         dirperm = 493
         locking = no
         log_packet_header = no
   }
  Module: Linked to module rlm_radutmp
  Module: Instantiating radutmp
   radutmp {
         filename = "//var/log/radius/radutmp"
         username = "%{User-Name}"
         case_sensitive = yes
         check_with_nas = yes
         perm = 384
         callerid = yes
   }
  Module: Linked to module rlm_attr_filter
  Module: Instantiating attr_filter.accounting_response
   attr_filter attr_filter.accounting_response {
         attrsfile = "//etc/raddb/attrs.accounting_response"
         key = "%{User-Name}"
   }
  Module: Checking session {...} for more modules to load
  Module: Checking pre-proxy {...} for more modules to load
  Module: Checking post-proxy {...} for more modules to load
  Module: Checking post-auth {...} for more modules to load
  Module: Instantiating attr_filter.access_reject
   attr_filter attr_filter.access_reject {
         attrsfile = "//etc/raddb/attrs.access_reject"
         key = "%{User-Name}"
   }
  }
}
Initializing the thread pool...
Listening on authentication address * port 1812
Listening on accounting address * port 1813
Listening on proxy address * port 1814
Ready to process requests.
Nothing to do.  Sleeping until we see a request.

#######################################
The Request:############################
#######################################

rad_recv: Access-Request packet from host 192.168.1.24 port 1030, id=2, 
length=174
         Message-Authenticator = 0x36e3c475bff42def9ec2405cacfa23d3
         Service-Type = Framed-User
         User-Name = "burgerw"
         Framed-MTU = 1488
         Called-Station-Id = "00184DFCC7B8:Test-U"
         Calling-Station-Id = "0017F2ECCC75"
         NAS-Identifier = "netgear1"
         NAS-Port-Type = Wireless-802.11
         Connect-Info = "CONNECT 54Mbps 802.11g"
         EAP-Message = 0x0200000c0162757267657277
         NAS-IP-Address = 192.168.1.24
         NAS-Port = 1
         NAS-Port-Id = "STA port # 1"
+- entering group authorize
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
++[unix] returns notfound
     rlm_realm: No '@' in User-Name = "burgerw", looking up realm NULL
     rlm_realm: No such realm "NULL"
++[suffix] returns noop
   rlm_eap: EAP packet type response id 0 length 12
   rlm_eap: No EAP Start, assuming it's an on-going EAP conversation
++[eap] returns updated
         expand: %{Called-Station-Id} -> 00184DFCC7B8:Test-U
     users: Matched entry DEFAULT at line 3
++[files] returns ok
++[expiration] returns noop
++[logintime] returns noop
++[userlist] returns notfound
++[pap] returns noop
+- entering group pre-proxy
     preproxy_users: Matched entry DEFAULT at line 25
++[files] returns ok
Sending Access-Request of id 196 to XXX.XXX.XXX.XXX port 1645
         Message-Authenticator = 0x00000000000000000000000000000000
         Service-Type = Framed-User
         User-Name = "burgerw"
         Framed-MTU = 1488
         Called-Station-Id = "00184DFCC7B8:Test-U"
         Calling-Station-Id = "0017F2ECCC75"
         NAS-Identifier := "10.1.3.139"
         NAS-Port-Type = Wireless-802.11
         Connect-Info = "CONNECT 54Mbps 802.11g"
         EAP-Message = 0x0200000c0162757267657277
         NAS-IP-Address = 192.168.1.24
         NAS-Port = 1
         NAS-Port-Id = "STA port # 1"
         Proxy-State = 0x32
Proxying request 13 to realm dras, home server XXX.XXX.XXX.XXX port 1645
Sending Access-Request of id 196 to XXX.XXX.XXX.XXX port 1645
         Message-Authenticator = 0x00000000000000000000000000000000
         Service-Type = Framed-User
         User-Name = "burgerw"
         Framed-MTU = 1488
         Called-Station-Id = "00184DFCC7B8:Test-U"
         Calling-Station-Id = "0017F2ECCC75"
         NAS-Identifier := "10.1.3.139"
         NAS-Port-Type = Wireless-802.11
         Connect-Info = "CONNECT 54Mbps 802.11g"
         EAP-Message = 0x0200000c0162757267657277
         NAS-IP-Address = 192.168.1.24
         NAS-Port = 1
         NAS-Port-Id = "STA port # 1"
         EAP-Type = Identity
         Realm = "dras"
         Proxy-State = 0x32
Going to the next request
Waking up in 19 seconds...
rad_recv: Access-Reject packet from host XXX.XXX.XXX.XXX port 1645, 
id=196, length=40
         Reply-Message = "\r\ninvalid password"
+- entering group post-proxy
++[eap] returns noop
   Found Post-Auth-Type Reject
+- entering group REJECT
         expand: %{User-Name} -> burgerw
  attr_filter: Matched entry DEFAULT at line 11
++[attr_filter.access_reject] returns updated
Delaying reject of request 13 for 1 seconds
Going to the next request
rad_recv: Access-Request packet from host 192.168.1.24 port 1030, id=2, 
length=174
Waiting to send Access-Reject to client netgear1 port 1030 - ID: 2
Sending delayed reject for request 13
Sending Access-Reject of id 2 to 192.168.1.24 port 1030
         Reply-Message = "\r\ninvalid password"
Waking up in 4 seconds...
Cleaning up request 13 ID 2 with timestamp +7693
Nothing to do.  Sleeping until we see a request.

Thank you for your help Alan.
I wish any commercial product would have a support as good as yours.

Wolfgang Burger <burgerw@immunbio.mpg.de>

Max-Planck-Institut fuer Immunbiologie
Scientific Data Processing Unit
(+00 49) 761 / 5108 461
Stuebeweg 51
D-79108 Freiburg
Germany