radiusd logs good passwords even when told not to?

Tim Eberhard xmin0s at gmail.com
Tue Jan 6 17:36:25 CET 2009


Background info:

# uname -a
Linux removed.com 2.6.9-67.0.22.EL #1 Wed Jul 23 17:17:45 EDT 2008 i686 i686
i386 GNU/Linux

Free radius installed via a RPM:
# rpm -qa  | grep radius
freeradius-1.0.1-3.RHEL4.5


# radiusd -v
radiusd: FreeRADIUS Version 1.0.1, for host , built on Apr 25 2007 at
08:19:46
Copyright (C) 2000-2003 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.
For more information about these matters, see the file named COPYRIGHT.


We start/stop it via the init.d script which states:
RADIUSD=/usr/sbin/radiusd
LOCKF=/var/lock/subsys/radiusd
CONFIG=/etc/raddb/radiusd.conf

Our /etc/raddb/radiusd.conf clearly states to not log passwords:
#  allowed values: {no, yes}
#
log_auth_badpass = no
log_auth_goodpass = no



However it's logging good password auth's still..

# ll /etc/radacct/ | wc -l
631

# cat auth-detail-20081023

Packet-Type = Access-Request
<removed>
        User-Name = "username"
        User-Password = "password"
        NAS-IP-Address = 127.0.0.1
        Client-IP-Address = 127.0.0.1




Starting it manually with debug turned on here is what I see..

# radiusd -X
Starting - reading configuration files ...
reread_config:  reading 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/sql.conf
 main: prefix = "/"
 main: localstatedir = "//var"
 main: logdir = "/var/log"
 main: libdir = "//lib"
 main: radacctdir = "/etc/radacct"
 main: hostname_lookups = no
 main: max_request_time = 30
 main: cleanup_delay = 5
 main: max_requests = 1024
 main: delete_blocked_requests = 0
 main: port = 1812
 main: allow_core_dumps = no
 main: log_stripped_names = yes
 main: log_file = "/var/log/radius.log"
 main: log_auth = yes
 main: log_auth_badpass = no
 main: log_auth_goodpass = no
 main: pidfile = "//var/run/radiusd/radiusd.pid"
 main: bind_address = 192.168.1.1 IP address [192.168.1.1]
 main: user = "(null)"
 main: group = "(null)"
 main: usercollide = no
 main: lower_user = "no"
 main: lower_pass = "no"
 main: nospace_user = "no"
 main: nospace_pass = "no"
 main: checkrad = "//sbin/checkrad"
 main: proxy_requests = no
 proxy: retry_delay = 5
 proxy: retry_count = 3
 proxy: synchronous = no
 proxy: default_fallback = yes
 proxy: dead_time = 120
 proxy: post_proxy_authorize = yes
 proxy: wake_all_if_all_dead = no
 security: max_attributes = 200
 security: reject_delay = 1
 security: status_server = no
 main: debug_level = 0
read_config_files:  reading dictionary
read_config_files:  reading naslist
Using deprecated naslist file.  Support for this will go away soon.
read_config_files:  reading clients
read_config_files:  reading realms
radiusd:  entering modules setup
Module: Library search path is /lib
Module: Loaded expr
Module: Instantiated expr (expr)
Module: Loaded PAP
 pap: encryption_scheme = "crypt"
Module: Instantiated pap (pap)
Module: Loaded CHAP
Module: Instantiated chap (chap)
Module: Loaded MS-CHAP
 mschap: use_mppe = yes
 mschap: require_encryption = no
 mschap: require_strong = no
 mschap: with_ntdomain_hack = no
 mschap: passwd = "(null)"
 mschap: authtype = "MS-CHAP"
 mschap: ntlm_auth = "(null)"
Module: Instantiated mschap (mschap)
Module: Loaded System
 unix: cache = no
 unix: passwd = "(null)"
 unix: shadow = "(null)"
 unix: group = "(null)"
 unix: radwtmp = "/var/log/radwtmp"
 unix: usegroup = no
 unix: cache_reload = 600
Module: Instantiated unix (unix)
Module: Loaded eap
 eap: default_eap_type = "md5"
 eap: timer_expire = 60
 eap: ignore_unknown_eap_types = no
 eap: cisco_accounting_username_bug = no
rlm_eap: Loaded and initialized type md5
rlm_eap: Loaded and initialized type leap
Module: Instantiated eap (eap)
Module: Loaded preprocess
 preprocess: huntgroups = "/etc/raddb/huntgroups"
 preprocess: hints = "/etc/raddb/hints"
 preprocess: with_ascend_hack = no
 preprocess: ascend_channels_per_line = 23
 preprocess: with_ntdomain_hack = no
 preprocess: with_specialix_jetstream_hack = no
 preprocess: with_cisco_vsa_hack = no
Module: Instantiated preprocess (preprocess)
Module: Loaded detail
 detail: detailfile = "/etc/radacct/%{Client-IP-Address}/auth-detail-%Y%m%d"
 detail: detailperm = 384
 detail: dirperm = 493
 detail: locking = no
Module: Instantiated detail (auth_log)
Module: Loaded realm
 realm: format = "suffix"
 realm: delimiter = "@"
 realm: ignore_default = no
 realm: ignore_null = no
Module: Instantiated realm (suffix)
Module: Loaded files
 files: usersfile = "/etc/raddb/users"
 files: acctusersfile = "/etc/raddb/acct_users"
 files: preproxy_usersfile = "/etc/raddb/preproxy_users"
 files: compat = "no"
Module: Instantiated files (files)
Module: Loaded Acct-Unique-Session-Id
 acct_unique: key = "User-Name, Acct-Session-Id, NAS-IP-Address,
Client-IP-Address, NAS-Port-Id"
Module: Instantiated acct_unique (acct_unique)
 detail: detailfile = "/etc/radacct/%{Client-IP-Address}/detail-%Y%m%d"
 detail: detailperm = 384
 detail: dirperm = 493
 detail: locking = no
Module: Instantiated detail (detail)
Module: Loaded radutmp
 radutmp: filename = "/var/log/radutmp"
 radutmp: username = "%{User-Name}"
 radutmp: case_sensitive = yes
 radutmp: check_with_nas = yes
 radutmp: perm = 384
 radutmp: callerid = yes
Module: Instantiated radutmp (radutmp)
Listening on authentication 192.168.1.1:1812
Listening on accounting 192.168.1.1:1813
Ready to process requests.
rad_recv: Access-Request packet from host 10.10.10.10:2702, id=165,
length=53
        User-Name = "username"
        User-Password = "removed"
        NAS-IP-Address = 10.10.10.10
  Processing the authorize section of radiusd.conf
modcall: entering group authorize for request 0
  modcall[authorize]: module "preprocess" returns ok for request 0
radius_xlat:  '/etc/radacct/10.10.10.10/auth-detail-20090106'
rlm_detail: /etc/radacct/%{Client-IP-Address}/auth-detail-%Y%m%d expands to
/etc/radacct/10.10.10.10/auth-detail-20090106
  modcall[authorize]: module "auth_log" returns ok for request 0
  modcall[authorize]: module "chap" returns noop for request 0
  rlm_eap: No EAP-Message, not doing EAP
  modcall[authorize]: module "eap" returns noop for request 0
    rlm_realm: No '@' in User-Name = "username", looking up realm NULL
    rlm_realm: No such realm "NULL"
  modcall[authorize]: module "suffix" returns noop for request 0
    users: Matched DEFAULT at 153
    users: Matched username at 316
  modcall[authorize]: module "files" returns ok for request 0
  modcall[authorize]: module "mschap" returns noop for request 0
modcall: group authorize returns ok for request 0
  rad_check_password:  Found Auth-Type System
auth: type "System"
  Processing the authenticate section of radiusd.conf
modcall: entering group authenticate for request 0
  modcall[authenticate]: module "unix" returns ok for request 0
modcall: group authenticate returns ok for request 0
Login OK: [username] (from client hostname.com port 0)
Sending Access-Accept of id 165 to 10.10.10.10:2702
        NS-Admin-Privilege = All-VSYS-Root-Admin
Finished request 0
Going to the next request
--- Walking the entire request list ---
Waking up in 6 seconds...

You can see it touched and updated the file with the new record..

# ll
total 4
-rw-------  1 root root 342 Jan  6 10:17 auth-detail-20090106


So why is it doing this? How can I stop it? Ideally I would like radius to
NOT store passwords in plain-text..

Any help is appreciated, thanks all!

-Tim Eberhard
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