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[defect]: Segmentation fault with check_client_connections #5480

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gk-fschubert opened this issue Dec 17, 2024 · 0 comments
Open

[defect]: Segmentation fault with check_client_connections #5480

gk-fschubert opened this issue Dec 17, 2024 · 0 comments
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defect category: a defect or misbehaviour

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@gk-fschubert
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What type of defect/bug is this?

Crash or memory corruption (segv, abort, etc...)

How can the issue be reproduced?

Enable the site tls and set check_client_connections in it to yes.

Then init and close some tls sessions until the server crashes.

Log output from the FreeRADIUS daemon

FreeRADIUS Version 3.2.7
Copyright (C) 1999-2023 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
For more information about these matters, see the file named COPYRIGHT
Starting - reading configuration files ...
including dictionary file /usr/local/share/freeradius/dictionary
including dictionary file /usr/local/share/freeradius/dictionary.dhcp
including dictionary file /usr/local/share/freeradius/dictionary.vqp
including dictionary file /usr/local/etc/raddb/dictionary
including configuration file /usr/local/etc/raddb/radiusd.conf
including configuration file /usr/local/etc/raddb/proxy.conf
including configuration file /usr/local/etc/raddb/clients.conf
including files in directory /usr/local/etc/raddb/mods-enabled/
including configuration file /usr/local/etc/raddb/mods-enabled/always
including configuration file /usr/local/etc/raddb/mods-enabled/attr_filter
including configuration file /usr/local/etc/raddb/mods-enabled/chap
including configuration file /usr/local/etc/raddb/mods-enabled/date
including configuration file /usr/local/etc/raddb/mods-enabled/detail
including configuration file /usr/local/etc/raddb/mods-enabled/detail.log
including configuration file /usr/local/etc/raddb/mods-enabled/digest
including configuration file /usr/local/etc/raddb/mods-enabled/dynamic_clients
including configuration file /usr/local/etc/raddb/mods-enabled/eap
including configuration file /usr/local/etc/raddb/mods-enabled/echo
including configuration file /usr/local/etc/raddb/mods-enabled/exec
including configuration file /usr/local/etc/raddb/mods-enabled/expiration
including configuration file /usr/local/etc/raddb/mods-enabled/expr
including configuration file /usr/local/etc/raddb/mods-enabled/files
including configuration file /usr/local/etc/raddb/mods-enabled/linelog
including configuration file /usr/local/etc/raddb/mods-enabled/logintime
including configuration file /usr/local/etc/raddb/mods-enabled/mschap
including configuration file /usr/local/etc/raddb/mods-enabled/ntlm_auth
including configuration file /usr/local/etc/raddb/mods-enabled/pap
including configuration file /usr/local/etc/raddb/mods-enabled/passwd
including configuration file /usr/local/etc/raddb/mods-enabled/preprocess
including configuration file /usr/local/etc/raddb/mods-enabled/radutmp
including configuration file /usr/local/etc/raddb/mods-enabled/realm
including configuration file /usr/local/etc/raddb/mods-enabled/replicate
including configuration file /usr/local/etc/raddb/mods-enabled/soh
including configuration file /usr/local/etc/raddb/mods-enabled/sradutmp
including configuration file /usr/local/etc/raddb/mods-enabled/totp
including configuration file /usr/local/etc/raddb/mods-enabled/unix
including configuration file /usr/local/etc/raddb/mods-enabled/unpack
including configuration file /usr/local/etc/raddb/mods-enabled/utf8
including files in directory /usr/local/etc/raddb/policy.d/
including configuration file /usr/local/etc/raddb/policy.d/abfab-tr
including configuration file /usr/local/etc/raddb/policy.d/accounting
including configuration file /usr/local/etc/raddb/policy.d/canonicalization
including configuration file /usr/local/etc/raddb/policy.d/control
including configuration file /usr/local/etc/raddb/policy.d/cui
including configuration file /usr/local/etc/raddb/policy.d/debug
including configuration file /usr/local/etc/raddb/policy.d/dhcp
including configuration file /usr/local/etc/raddb/policy.d/eap
including configuration file /usr/local/etc/raddb/policy.d/filter
including configuration file /usr/local/etc/raddb/policy.d/moonshot-targeted-ids
including configuration file /usr/local/etc/raddb/policy.d/operator-name
including configuration file /usr/local/etc/raddb/policy.d/rfc7542
including files in directory /usr/local/etc/raddb/sites-enabled/
including configuration file /usr/local/etc/raddb/sites-enabled/default
including configuration file /usr/local/etc/raddb/sites-enabled/inner-tunnel
including configuration file /usr/local/etc/raddb/sites-enabled/tls
main {
 security {
 	allow_core_dumps = yes
 }
	name = "radiusd"
	prefix = "/usr/local"
	localstatedir = "/usr/local/var"
	logdir = "/usr/local/var/log/radius"
	run_dir = "/usr/local/var/run/radiusd"
}
Core dumps are enabled
main {
	name = "radiusd"
	prefix = "/usr/local"
	localstatedir = "/usr/local/var"
	sbindir = "/usr/local/sbin"
	logdir = "/usr/local/var/log/radius"
	run_dir = "/usr/local/var/run/radiusd"
	libdir = "/usr/local/lib"
	radacctdir = "/usr/local/var/log/radius/radacct"
	panic_action = "gdb -silent -x /etc/raddb/panic.gdb %e %p 2>&1 | tee /usr/local/var/log/radius/gdb-radiusd-%p.log"
	hostname_lookups = no
	max_request_time = 30
	proxy_dedup_window = 1
	cleanup_delay = 5
	max_requests = 16384
	max_fds = 512
	postauth_client_lost = no
	pidfile = "/usr/local/var/run/radiusd/radiusd.pid"
	checkrad = "/usr/local/sbin/checkrad"
	debug_level = 0
	proxy_requests = yes
 log {
 	stripped_names = no
 	auth = no
 	auth_badpass = no
 	auth_goodpass = no
 	colourise = yes
 	msg_denied = "You are already logged in - access denied"
 }
 resources {
 }
 security {
 	max_attributes = 200
 	reject_delay = 1.000000
 	status_server = yes
 	require_message_authenticator = "auto"
 	limit_proxy_state = "auto"
 	allow_vulnerable_openssl = "no"
 }
 unlang {
 	group_stop_return = no
 	policy_stop_return = no
 }
}
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 {
 	nonblock = no
 	ipaddr = 127.0.0.1
 	port = 1812
 	type = "auth"
 	secret = <<< secret >>>
 	response_window = 20.000000
 	response_timeouts = 1
 	max_outstanding = 65536
 	zombie_period = 40
 	status_check = "status-server"
 	ping_interval = 30
 	check_interval = 30
 	check_timeout = 4
 	num_answers_to_alive = 3
 	revive_interval = 120
  limit {
  	max_connections = 16
  	max_requests = 0
  	lifetime = 0
  	idle_timeout = 0
  }
  coa {
  	irt = 2
  	mrt = 16
  	mrc = 5
  	mrd = 30
  }
 }
 home_server tls {
 	nonblock = no
 	ipaddr = 127.0.0.1
 	port = 2083
 	type = "auth"
 	proto = "tcp"
 	secret = <<< secret >>>
 	response_window = 30.000000
 	response_timeouts = 1
 	max_outstanding = 65536
 	zombie_period = 40
 	status_check = "none"
 	ping_interval = 30
 	check_timeout = 4
 	num_answers_to_alive = 3
 	revive_interval = 300
  limit {
  	max_connections = 16
  	max_requests = 0
  	lifetime = 0
  	idle_timeout = 0
  }
  coa {
  	irt = 2
  	mrt = 16
  	mrc = 5
  	mrd = 30
  }
 }
  tls {
  	verify_depth = 0
  	ca_path = "/usr/local/etc/raddb/certs"
  	pem_file_type = yes
  	private_key_file = "/usr/local/etc/raddb/certs/client.pem"
  	certificate_file = "/usr/local/etc/raddb/certs/client.pem"
  	ca_file = "/usr/local/etc/raddb/certs/ca.pem"
  	private_key_password = <<< secret >>>
  	fragment_size = 8192
  	include_length = yes
  	check_crl = no
  	cipher_list = "DEFAULT"
  	ca_path_reload_interval = 0
  	ecdh_curve = "prime256v1"
  	tls_min_version = "1.2"
  }
  	connect_timeout = 30
 home_server_pool my_auth_failover {
	type = fail-over
	home_server = localhost
 }
 realm example.com {
	auth_pool = my_auth_failover
 }
 realm LOCAL {
 }
 home_server_pool tls {
	type = fail-over
	home_server = tls
 }
 realm tls {
	auth_pool = tls
 }
radiusd: #### Loading Clients ####
 client localhost {
 	ipaddr = 127.0.0.1
 	secret = <<< secret >>>
 	nas_type = "other"
 	proto = "*"
  limit {
  	max_connections = 16
  	lifetime = 0
  	idle_timeout = 900
  }
 }
Shared secret for client localhost is short, and likely can be broken by an attacker.
 client localhost_ipv6 {
 	ipv6addr = ::1
 	secret = <<< secret >>>
  limit {
  	max_connections = 16
  	lifetime = 0
  	idle_timeout = 30
  }
 }
Shared secret for client localhost_ipv6 is short, and likely can be broken by an attacker.
Debugger not attached
Configuration version: f480-c871-7ada-22bf
 # Creating Auth-Type = mschap
 # Creating Auth-Type = digest
 # Creating Auth-Type = eap
 # Creating Auth-Type = PAP
 # Creating Auth-Type = CHAP
 # Creating Auth-Type = MS-CHAP
 # Creating Autz-Type = New-TLS-Connection
radiusd: #### Instantiating modules ####
 modules {
  # Loaded module rlm_always
  # Loading module "reject" from file /usr/local/etc/raddb/mods-enabled/always
  always reject {
  	rcode = "reject"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "fail" from file /usr/local/etc/raddb/mods-enabled/always
  always fail {
  	rcode = "fail"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "ok" from file /usr/local/etc/raddb/mods-enabled/always
  always ok {
  	rcode = "ok"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "handled" from file /usr/local/etc/raddb/mods-enabled/always
  always handled {
  	rcode = "handled"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "invalid" from file /usr/local/etc/raddb/mods-enabled/always
  always invalid {
  	rcode = "invalid"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "userlock" from file /usr/local/etc/raddb/mods-enabled/always
  always userlock {
  	rcode = "userlock"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "notfound" from file /usr/local/etc/raddb/mods-enabled/always
  always notfound {
  	rcode = "notfound"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "noop" from file /usr/local/etc/raddb/mods-enabled/always
  always noop {
  	rcode = "noop"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "updated" from file /usr/local/etc/raddb/mods-enabled/always
  always updated {
  	rcode = "updated"
  	simulcount = 0
  	mpp = no
  }
  # Loaded module rlm_attr_filter
  # Loading module "attr_filter.post-proxy" from file /usr/local/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.post-proxy {
  	filename = "/usr/local/etc/raddb/mods-config/attr_filter/post-proxy"
  	key = "%{Realm}"
  	relaxed = no
  }
  # Loading module "attr_filter.pre-proxy" from file /usr/local/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.pre-proxy {
  	filename = "/usr/local/etc/raddb/mods-config/attr_filter/pre-proxy"
  	key = "%{Realm}"
  	relaxed = no
  }
  # Loading module "attr_filter.access_reject" from file /usr/local/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.access_reject {
  	filename = "/usr/local/etc/raddb/mods-config/attr_filter/access_reject"
  	key = "%{User-Name}"
  	relaxed = no
  }
  # Loading module "attr_filter.access_challenge" from file /usr/local/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.access_challenge {
  	filename = "/usr/local/etc/raddb/mods-config/attr_filter/access_challenge"
  	key = "%{User-Name}"
  	relaxed = no
  }
  # Loading module "attr_filter.accounting_response" from file /usr/local/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.accounting_response {
  	filename = "/usr/local/etc/raddb/mods-config/attr_filter/accounting_response"
  	key = "%{User-Name}"
  	relaxed = no
  }
  # Loading module "attr_filter.coa" from file /usr/local/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.coa {
  	filename = "/usr/local/etc/raddb/mods-config/attr_filter/coa"
  	key = "%{User-Name}"
  	relaxed = no
  }
  # Loaded module rlm_chap
  # Loading module "chap" from file /usr/local/etc/raddb/mods-enabled/chap
  # Loaded module rlm_date
  # Loading module "date" from file /usr/local/etc/raddb/mods-enabled/date
  date {
  	format = "%b %e %Y %H:%M:%S %Z"
  	utc = no
  }
  # Loading module "wispr2date" from file /usr/local/etc/raddb/mods-enabled/date
  date wispr2date {
  	format = "%Y-%m-%dT%H:%M:%S"
  	utc = no
  }
  # Loaded module rlm_detail
  # Loading module "detail" from file /usr/local/etc/raddb/mods-enabled/detail
  detail {
  	filename = "/usr/local/var/log/radius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/detail-%Y%m%d"
  	header = "%t"
  	permissions = 384
  	locking = no
  	dates_as_integer = no
  	escape_filenames = no
  	log_packet_header = no
  }
  # Loading module "auth_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  detail auth_log {
  	filename = "/usr/local/var/log/radius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/auth-detail-%Y%m%d"
  	header = "%t"
  	permissions = 384
  	locking = no
  	dates_as_integer = no
  	escape_filenames = no
  	log_packet_header = no
  }
  # Loading module "reply_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  detail reply_log {
  	filename = "/usr/local/var/log/radius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/reply-detail-%Y%m%d"
  	header = "%t"
  	permissions = 384
  	locking = no
  	dates_as_integer = no
  	escape_filenames = no
  	log_packet_header = no
  }
  # Loading module "pre_proxy_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  detail pre_proxy_log {
  	filename = "/usr/local/var/log/radius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/pre-proxy-detail-%Y%m%d"
  	header = "%t"
  	permissions = 384
  	locking = no
  	dates_as_integer = no
  	escape_filenames = no
  	log_packet_header = no
  }
  # Loading module "post_proxy_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  detail post_proxy_log {
  	filename = "/usr/local/var/log/radius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/post-proxy-detail-%Y%m%d"
  	header = "%t"
  	permissions = 384
  	locking = no
  	dates_as_integer = no
  	escape_filenames = no
  	log_packet_header = no
  }
  # Loaded module rlm_digest
  # Loading module "digest" from file /usr/local/etc/raddb/mods-enabled/digest
  # Loaded module rlm_dynamic_clients
  # Loading module "dynamic_clients" from file /usr/local/etc/raddb/mods-enabled/dynamic_clients
  # Loaded module rlm_eap
  # Loading module "eap" from file /usr/local/etc/raddb/mods-enabled/eap
  eap {
  	default_eap_type = "md5"
  	timer_expire = 60
  	max_eap_type = 52
  	ignore_unknown_eap_types = no
  	cisco_accounting_username_bug = no
  	max_sessions = 16384
  	dedup_key = ""
  }
  # Loaded module rlm_exec
  # Loading module "echo" from file /usr/local/etc/raddb/mods-enabled/echo
  exec echo {
  	wait = yes
  	program = "/bin/echo %{User-Name}"
  	input_pairs = "request"
  	output_pairs = "reply"
  	shell_escape = yes
  }
  # Loading module "exec" from file /usr/local/etc/raddb/mods-enabled/exec
  exec {
  	wait = no
  	input_pairs = "request"
  	shell_escape = yes
  	timeout = 10
  }
  # Loaded module rlm_expiration
  # Loading module "expiration" from file /usr/local/etc/raddb/mods-enabled/expiration
  # Loaded module rlm_expr
  # Loading module "expr" from file /usr/local/etc/raddb/mods-enabled/expr
  expr {
  	safe_characters = "@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_: /äéöüàâæçèéêëîïôœùûüaÿÄÉÖÜßÀÂÆÇÈÉÊËÎÏÔŒÙÛÜŸ"
  }
  # Loaded module rlm_files
  # Loading module "files" from file /usr/local/etc/raddb/mods-enabled/files
  files {
  	filename = "/usr/local/etc/raddb/mods-config/files/authorize"
  	acctusersfile = "/usr/local/etc/raddb/mods-config/files/accounting"
  	preproxy_usersfile = "/usr/local/etc/raddb/mods-config/files/pre-proxy"
  }
  # Loaded module rlm_linelog
  # Loading module "linelog" from file /usr/local/etc/raddb/mods-enabled/linelog
  linelog {
  	filename = "/usr/local/var/log/radius/linelog"
  	escape_filenames = no
  	syslog_severity = "info"
  	permissions = 384
  	format = "This is a log message for %{User-Name}"
  	reference = "messages.%{%{reply:Packet-Type}:-default}"
  }
  # Loading module "log_accounting" from file /usr/local/etc/raddb/mods-enabled/linelog
  linelog log_accounting {
  	filename = "/usr/local/var/log/radius/linelog-accounting"
  	escape_filenames = no
  	syslog_severity = "info"
  	permissions = 384
  	format = ""
  	reference = "Accounting-Request.%{%{Acct-Status-Type}:-unknown}"
  }
  # Loaded module rlm_logintime
  # Loading module "logintime" from file /usr/local/etc/raddb/mods-enabled/logintime
  logintime {
  	minimum_timeout = 60
  }
  # Loaded module rlm_mschap
  # Loading module "mschap" from file /usr/local/etc/raddb/mods-enabled/mschap
  mschap {
  	use_mppe = yes
  	require_encryption = no
  	require_strong = no
  	with_ntdomain_hack = yes
   passchange {
   }
  	allow_retry = yes
  	winbind_retry_with_normalised_username = no
  }
  # Loading module "ntlm_auth" from file /usr/local/etc/raddb/mods-enabled/ntlm_auth
  exec ntlm_auth {
  	wait = yes
  	program = "/path/to/ntlm_auth --request-nt-key --domain=MYDOMAIN --username=%{mschap:User-Name} --password=%{User-Password}"
  	shell_escape = yes
  }
  # Loaded module rlm_pap
  # Loading module "pap" from file /usr/local/etc/raddb/mods-enabled/pap
  pap {
  	normalise = yes
  }
  # Loaded module rlm_passwd
  # Loading module "etc_passwd" from file /usr/local/etc/raddb/mods-enabled/passwd
  passwd etc_passwd {
  	filename = "/etc/passwd"
  	format = "*User-Name:Crypt-Password:"
  	delimiter = ":"
  	ignore_nislike = no
  	ignore_empty = yes
  	allow_multiple_keys = no
  	hash_size = 100
  }
  # Loaded module rlm_preprocess
  # Loading module "preprocess" from file /usr/local/etc/raddb/mods-enabled/preprocess
  preprocess {
  	huntgroups = "/usr/local/etc/raddb/mods-config/preprocess/huntgroups"
  	hints = "/usr/local/etc/raddb/mods-config/preprocess/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
  }
  # Loaded module rlm_radutmp
  # Loading module "radutmp" from file /usr/local/etc/raddb/mods-enabled/radutmp
  radutmp {
  	filename = "/usr/local/var/log/radius/radutmp"
  	username = "%{User-Name}"
  	case_sensitive = yes
  	check_with_nas = yes
  	permissions = 384
  	caller_id = yes
  }
  # Loaded module rlm_realm
  # Loading module "IPASS" from file /usr/local/etc/raddb/mods-enabled/realm
  realm IPASS {
  	format = "prefix"
  	delimiter = "/"
  	ignore_default = no
  	ignore_null = no
  }
  # Loading module "suffix" from file /usr/local/etc/raddb/mods-enabled/realm
  realm suffix {
  	format = "suffix"
  	delimiter = "@"
  	ignore_default = no
  	ignore_null = no
  }
  # Loading module "bangpath" from file /usr/local/etc/raddb/mods-enabled/realm
  realm bangpath {
  	format = "prefix"
  	delimiter = "!"
  	ignore_default = no
  	ignore_null = no
  }
  # Loading module "realmpercent" from file /usr/local/etc/raddb/mods-enabled/realm
  realm realmpercent {
  	format = "suffix"
  	delimiter = "%"
  	ignore_default = no
  	ignore_null = no
  }
  # Loading module "ntdomain" from file /usr/local/etc/raddb/mods-enabled/realm
  realm ntdomain {
  	format = "prefix"
  	delimiter = "\"
  	ignore_default = no
  	ignore_null = no
  }
  # Loaded module rlm_replicate
  # Loading module "replicate" from file /usr/local/etc/raddb/mods-enabled/replicate
  # Loaded module rlm_soh
  # Loading module "soh" from file /usr/local/etc/raddb/mods-enabled/soh
  soh {
  	dhcp = yes
  }
  # Loading module "sradutmp" from file /usr/local/etc/raddb/mods-enabled/sradutmp
  radutmp sradutmp {
  	filename = "/usr/local/var/log/radius/sradutmp"
  	username = "%{User-Name}"
  	case_sensitive = yes
  	check_with_nas = yes
  	permissions = 420
  	caller_id = no
  }
  # Loaded module rlm_totp
  # Loading module "totp" from file /usr/local/etc/raddb/mods-enabled/totp
  totp {
  	time_step = 30
  	otp_length = 6
  	lookback_steps = 1
  	lookback_interval = 30
  	lookforward_steps = 0
  }
  # Loaded module rlm_unix
  # Loading module "unix" from file /usr/local/etc/raddb/mods-enabled/unix
  unix {
  	radwtmp = "/usr/local/var/log/radius/radwtmp"
  }
Creating attribute Unix-Group
  # Loaded module rlm_unpack
  # Loading module "unpack" from file /usr/local/etc/raddb/mods-enabled/unpack
  # Loaded module rlm_utf8
  # Loading module "utf8" from file /usr/local/etc/raddb/mods-enabled/utf8
  instantiate {
  }
  # Instantiating module "reject" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "fail" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "ok" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "handled" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "invalid" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "userlock" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "notfound" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "noop" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "updated" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "attr_filter.post-proxy" from file /usr/local/etc/raddb/mods-enabled/attr_filter
reading pairlist file /usr/local/etc/raddb/mods-config/attr_filter/post-proxy
  # Instantiating module "attr_filter.pre-proxy" from file /usr/local/etc/raddb/mods-enabled/attr_filter
reading pairlist file /usr/local/etc/raddb/mods-config/attr_filter/pre-proxy
  # Instantiating module "attr_filter.access_reject" from file /usr/local/etc/raddb/mods-enabled/attr_filter
reading pairlist file /usr/local/etc/raddb/mods-config/attr_filter/access_reject
  # Instantiating module "attr_filter.access_challenge" from file /usr/local/etc/raddb/mods-enabled/attr_filter
reading pairlist file /usr/local/etc/raddb/mods-config/attr_filter/access_challenge
  # Instantiating module "attr_filter.accounting_response" from file /usr/local/etc/raddb/mods-enabled/attr_filter
reading pairlist file /usr/local/etc/raddb/mods-config/attr_filter/accounting_response
  # Instantiating module "attr_filter.coa" from file /usr/local/etc/raddb/mods-enabled/attr_filter
reading pairlist file /usr/local/etc/raddb/mods-config/attr_filter/coa
  # Instantiating module "detail" from file /usr/local/etc/raddb/mods-enabled/detail
  # Instantiating module "auth_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
rlm_detail (auth_log): 'User-Password' suppressed, will not appear in detail output
  # Instantiating module "reply_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  # Instantiating module "pre_proxy_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  # Instantiating module "post_proxy_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  # Instantiating module "eap" from file /usr/local/etc/raddb/mods-enabled/eap
   # Linked to sub-module rlm_eap_md5
   # Linked to sub-module rlm_eap_gtc
   gtc {
   	challenge = "Password: "
   	auth_type = "PAP"
   }
   # Linked to sub-module rlm_eap_tls
   tls {
   	tls = "tls-common"
   }
   tls-config tls-common {
   	verify_depth = 0
   	ca_path = "/usr/local/etc/raddb/certs"
   	pem_file_type = yes
   	private_key_file = "/usr/local/etc/raddb/certs/server.pem"
   	certificate_file = "/usr/local/etc/raddb/certs/server.pem"
   	ca_file = "/usr/local/etc/raddb/certs/ca.pem"
   	private_key_password = <<< secret >>>
   	fragment_size = 1024
   	include_length = yes
   	auto_chain = yes
   	check_crl = no
   	check_all_crl = no
   	ca_path_reload_interval = 0
   	cipher_list = "DEFAULT"
   	cipher_server_preference = no
   	reject_unknown_intermediate_ca = no
   	ecdh_curve = ""
   	tls_max_version = "1.2"
   	tls_min_version = "1.2"
    cache {
    	enable = no
    	lifetime = 24
    	max_entries = 255
    }
    verify {
    	skip_if_ocsp_ok = no
    }
    ocsp {
    	enable = no
    	override_cert_url = yes
    	url = "http://127.0.0.1/ocsp/"
    	use_nonce = yes
    	timeout = 0
    	softfail = no
    }
   }
   # Linked to sub-module rlm_eap_ttls
   ttls {
   	tls = "tls-common"
   	default_eap_type = "md5"
   	copy_request_to_tunnel = no
   	use_tunneled_reply = no
   	virtual_server = "inner-tunnel"
   	include_length = yes
   	require_client_cert = no
   }
tls: Using cached TLS configuration from previous invocation
   # Linked to sub-module rlm_eap_peap
   peap {
   	tls = "tls-common"
   	default_eap_type = "mschapv2"
   	copy_request_to_tunnel = no
   	use_tunneled_reply = no
   	proxy_tunneled_request_as_eap = yes
   	virtual_server = "inner-tunnel"
   	soh = no
   	require_client_cert = no
   }
tls: Using cached TLS configuration from previous invocation
   # Linked to sub-module rlm_eap_mschapv2
   mschapv2 {
   	with_ntdomain_hack = no
   	send_error = no
   }
  # Instantiating module "expiration" from file /usr/local/etc/raddb/mods-enabled/expiration
  # Instantiating module "files" from file /usr/local/etc/raddb/mods-enabled/files
reading pairlist file /usr/local/etc/raddb/mods-config/files/authorize
reading pairlist file /usr/local/etc/raddb/mods-config/files/accounting
reading pairlist file /usr/local/etc/raddb/mods-config/files/pre-proxy
  # Instantiating module "linelog" from file /usr/local/etc/raddb/mods-enabled/linelog
  # Instantiating module "log_accounting" from file /usr/local/etc/raddb/mods-enabled/linelog
  # Instantiating module "logintime" from file /usr/local/etc/raddb/mods-enabled/logintime
  # Instantiating module "mschap" from file /usr/local/etc/raddb/mods-enabled/mschap
rlm_mschap (mschap): using internal authentication
  # Instantiating module "pap" from file /usr/local/etc/raddb/mods-enabled/pap
  # Instantiating module "etc_passwd" from file /usr/local/etc/raddb/mods-enabled/passwd
rlm_passwd: nfields: 3 keyfield 0(User-Name) listable: no
  # Instantiating module "preprocess" from file /usr/local/etc/raddb/mods-enabled/preprocess
reading pairlist file /usr/local/etc/raddb/mods-config/preprocess/huntgroups
reading pairlist file /usr/local/etc/raddb/mods-config/preprocess/hints
  # Instantiating module "IPASS" from file /usr/local/etc/raddb/mods-enabled/realm
  # Instantiating module "suffix" from file /usr/local/etc/raddb/mods-enabled/realm
  # Instantiating module "bangpath" from file /usr/local/etc/raddb/mods-enabled/realm
  # Instantiating module "realmpercent" from file /usr/local/etc/raddb/mods-enabled/realm
  # Instantiating module "ntdomain" from file /usr/local/etc/raddb/mods-enabled/realm
  # Instantiating module "totp" from file /usr/local/etc/raddb/mods-enabled/totp
 } # modules
radiusd: #### Loading Virtual Servers ####
server { # from file /usr/local/etc/raddb/radiusd.conf
} # server
server default { # from file /usr/local/etc/raddb/sites-enabled/default
 # Loading authenticate {...}
Compiling Auth-Type PAP for attr Auth-Type
Compiling Auth-Type CHAP for attr Auth-Type
Compiling Auth-Type MS-CHAP for attr Auth-Type
 # Loading authorize {...}
Ignoring "sql" (see raddb/mods-available/README.rst)
Ignoring "ldap" (see raddb/mods-available/README.rst)
Compiling Autz-Type New-TLS-Connection for attr Autz-Type
 # Loading preacct {...}
 # Loading accounting {...}
 # Loading post-proxy {...}
 # Loading post-auth {...}
Compiling Post-Auth-Type REJECT for attr Post-Auth-Type
Compiling Post-Auth-Type Challenge for attr Post-Auth-Type
Compiling Post-Auth-Type Client-Lost for attr Post-Auth-Type
} # server default
server inner-tunnel { # from file /usr/local/etc/raddb/sites-enabled/inner-tunnel
 # Loading authenticate {...}
Compiling Auth-Type PAP for attr Auth-Type
Compiling Auth-Type CHAP for attr Auth-Type
Compiling Auth-Type MS-CHAP for attr Auth-Type
 # Loading authorize {...}
 # Loading session {...}
 # Loading post-proxy {...}
 # Loading post-auth {...}
 # Skipping contents of 'if' as it is always 'false' -- /usr/local/etc/raddb/sites-enabled/inner-tunnel:366
Compiling Post-Auth-Type REJECT for attr Post-Auth-Type
} # server inner-tunnel
 thread pool {
 	start_servers = 5
 	max_servers = 32
 	min_spare_servers = 3
 	max_spare_servers = 10
 	max_requests_per_server = 0
 	cleanup_delay = 5
 	max_queue_size = 65536
 	auto_limit_acct = no
 }
Thread spawned new child 1. Total threads in pool: 1
Thread 1 waiting to be assigned a request
Thread spawned new child 2. Total threads in pool: 2
Thread 2 waiting to be assigned a request
Thread spawned new child 3. Total threads in pool: 3
Thread 3 waiting to be assigned a request
Thread spawned new child 4. Total threads in pool: 4
Thread 4 waiting to be assigned a request
Thread spawned new child 5. Total threads in pool: 5
Thread pool initialized
radiusd: #### Opening IP addresses and Ports ####
Thread 5 waiting to be assigned a request
listen {
 	type = "auth+acct"
 	virtual_server = "default"
 	ipaddr = *
 	port = 2083
 	proto = "tcp"
  tls {
  	verify_depth = 0
  	ca_path = "/usr/local/etc/raddb/certs"
  	pem_file_type = yes
  	private_key_file = "/usr/local/etc/raddb/certs/server.pem"
  	certificate_file = "/usr/local/etc/raddb/certs/server.pem"
  	ca_file = "/usr/local/etc/raddb/certs/ca.pem"
  	private_key_password = <<< secret >>>
  	fragment_size = 8192
  	include_length = yes
  	auto_chain = yes
  	check_crl = no
  	check_all_crl = no
  	ca_path_reload_interval = 3600
  	cipher_list = "DEFAULT"
  	cipher_server_preference = no
  	require_client_cert = yes
  	reject_unknown_intermediate_ca = no
  	ecdh_curve = ""
  	tls_max_version = "1.3"
  	tls_min_version = "1.2"
   cache {
   	enable = no
   	lifetime = 24
   	max_entries = 255
   }
   verify {
   	skip_if_ocsp_ok = no
   }
   ocsp {
   	enable = no
   	override_cert_url = no
   	use_nonce = yes
   	timeout = 0
   	softfail = no
   }
  }
 	check_client_connections = yes
  limit {
  	max_connections = 16
  	lifetime = 0
  	idle_timeout = 30
  }
 	clients = "radsec"
  client 127.0.0.1 {
  	ipaddr = *
  	secret = <<< secret >>>
  	proto = "tls"
   limit {
   	max_connections = 16
   	lifetime = 0
   	idle_timeout = 30
   }
  }
Shared secret for client 127.0.0.1 is short, and likely can be broken by an attacker.
}
listen {
  	type = "auth"
  	ipaddr = *
  	port = 0
   limit {
   	max_connections = 16
   	lifetime = 0
   	idle_timeout = 900
   }
}
listen {
  	type = "acct"
  	ipaddr = *
  	port = 0
   limit {
   	max_connections = 16
   	lifetime = 0
   	idle_timeout = 30
   }
}
listen {
  	type = "auth"
  	ipv6addr = ::
  	port = 0
   limit {
   	max_connections = 16
   	lifetime = 0
   	idle_timeout = 30
   }
}
listen {
  	type = "acct"
  	ipv6addr = ::
  	port = 0
   limit {
   	max_connections = 16
   	lifetime = 0
   	idle_timeout = 30
   }
}
listen {
  	type = "auth"
  	ipaddr = 127.0.0.1
  	port = 18120
}
Listening on auth+acct proto tcp address * port 2083 (TLS) bound to server default
Listening on auth address * port 1812 bound to server default
Listening on acct address * port 1813 bound to server default
Listening on auth address :: port 1812 bound to server default
Listening on acct address :: port 1813 bound to server default
Listening on auth address 127.0.0.1 port 18120 bound to server inner-tunnel
Listening on proxy address * port 39095
Listening on proxy address :: port 55812
Ready to process requests



SOME TLS CONNECTIONS




(0) (TLS) We already have 14 bytes of application data, processing it.
Thread 1 got semaphore
Waking up in 0.2 seconds.
(0) (TLS) Client has closed the TCP connection
Thread 1 handling request 8, (2 handled so far)
(TLS) Closing socket from client port 43372
(0) (TLS) RADIUS/TLS - send TLS 1.3 Alert, warning close_notify
(TLS) Closing connection
(8) (TLS) Checking connection to see if it is authorized.
(0) (TLS) We already have 14 bytes of application data, processing it.
(8) # Executing group from file /usr/local/etc/raddb/sites-enabled/default
(8)   Autz-Type New-TLS-Connection {
(8)     [ok] = ok
(8)   } # Autz-Type New-TLS-Connection = ok
(0) (TLS) We already have 14 bytes of application data, processing it.
(8) (TLS) Connection is authorized
Waking up in 0.2 seconds.
(0) (TLS) Client has closed the TCP connection
(TLS) Closing socket from client port 43412
(8) Sent Access-Accept Id 0 from 0.0.0.0:2083 to 192.168.97.2:43404 length 38
(0) (TLS) RADIUS/TLS - send TLS 1.3 Alert, warning close_notify
(TLS) Closing connection
(0) (TLS) Client has closed the TCP connection
(TLS) Closing socket from client port 43388
(0) (TLS) RADIUS/TLS - send TLS 1.3 Handshake, Finished
(0) (TLS) RADIUS/TLS - send TLS 1.3 Alert, warning close_notify
(TLS) Closing connection
Waking up in 0.2 seconds.
(8) Finished request
Thread 1 waiting to be assigned a request
Segmentation fault (core dumped)

Relevant log output from client utilities

No response

Backtrace from LLDB or GDB

(lldb) bt all
* thread #1, name = 'radiusd', stop reason = signal SIGSEGV: invalid address (fault address: 0xaaaaab519000)
  * frame #0: 0x0000fffff78c7c84 libc.so.6`__memcpy_generic at memcpy.S:186
    frame #1: 0x0000aaaaaab0c5e4 radiusd`tls_socket_write(listener=0x0000aaaaaaffc6a0) at tls_listen.c:147:2
    frame #2: 0x0000aaaaaab0db9c radiusd`tls_socket_recv(listener=0x0000aaaaaaffc6a0) at tls_listen.c:638:11
    frame #3: 0x0000aaaaaab0e24c radiusd`dual_tls_recv(listener=0x0000aaaaaaffc6a0) at tls_listen.c:768:7
    frame #4: 0x0000aaaaaaaf50e8 radiusd`event_socket_handler(xel=0x0000aaaaaaed9720, fd=22, ctx=0x0000aaaaaaffc6a0) at process.c:5390:2
    frame #5: 0x0000fffff7f2e9f4 libfreeradius-radius.so`fr_event_loop(el=0x0000aaaaaaed9720) at event.c:721:4
    frame #6: 0x0000aaaaaaaf7530 radiusd`radius_event_process at process.c:6617:9
    frame #7: 0x0000aaaaaaaddea4 radiusd`main(argc=4, argv=0x0000fffffffff6b8) at radiusd.c:653:19
    frame #8: 0x0000fffff78573fc libc.so.6`__libc_start_call_main(main=(radiusd`main at radiusd.c:97:1), argc=4, argv=0x0000fffffffff6b8) at libc_start_call_main.h:58:16
    frame #9: 0x0000fffff78574cc libc.so.6`__libc_start_main_impl(main=(radiusd`main at radiusd.c:97:1), argc=4, argv=0x0000fffffffff6b8, init=(radiusd`__do_global_dtors_aux_fini_array_entry), fini=<unavailable>, rtld_fini=<unavailable>, stack_end=<unavailable>) at libc-start.c:392:3
    frame #10: 0x0000aaaaaaab5970 radiusd`_start + 48
  thread #2, name = 'radiusd'
    frame #0: 0x0000fffff78a9df8 libc.so.6`__GI___futex_abstimed_wait_cancelable64 at futex-internal.c:57:12
    frame #1: 0x0000fffff78a9dd4 libc.so.6`__GI___futex_abstimed_wait_cancelable64 at futex-internal.c:87:9
    frame #2: 0x0000fffff78a9d40 libc.so.6`__GI___futex_abstimed_wait_cancelable64(futex_word=0x0000aaaaaab4c4a0, expected=0, clockid=<unavailable>, abstime=0x0000000000000000, private=<unavailable>) at futex-internal.c:139:10
    frame #3: 0x0000fffff78b5a5c libc.so.6`__new_sem_wait_slow64(sem=0x0000aaaaaab4c4a0, abstime=<unavailable>, clockid=<unavailable>) at sem_waitcommon.c:183:10
    frame #4: 0x0000aaaaaaae7184 radiusd`request_handler_thread(arg=0x0000aaaaaaf22ae0) at threads.c:741:7
    frame #5: 0x0000fffff78ad5c8 libc.so.6`start_thread(arg=0x0000000000000000) at pthread_create.c:442:8
    frame #6: 0x0000fffff7915edc libc.so.6`thread_start at clone.S:79
  thread #3, name = 'radiusd'
    frame #0: 0x0000fffff78a9df8 libc.so.6`__GI___futex_abstimed_wait_cancelable64 at futex-internal.c:57:12
    frame #1: 0x0000fffff78a9dd4 libc.so.6`__GI___futex_abstimed_wait_cancelable64 at futex-internal.c:87:9
    frame #2: 0x0000fffff78a9d40 libc.so.6`__GI___futex_abstimed_wait_cancelable64(futex_word=0x0000aaaaaab4c4a0, expected=0, clockid=<unavailable>, abstime=0x0000000000000000, private=<unavailable>) at futex-internal.c:139:10
    frame #3: 0x0000fffff78b5a5c libc.so.6`__new_sem_wait_slow64(sem=0x0000aaaaaab4c4a0, abstime=<unavailable>, clockid=<unavailable>) at sem_waitcommon.c:183:10
    frame #4: 0x0000aaaaaaae7184 radiusd`request_handler_thread(arg=0x0000aaaaaaf220f0) at threads.c:741:7
    frame #5: 0x0000fffff78ad5c8 libc.so.6`start_thread(arg=0x0000000000000000) at pthread_create.c:442:8
    frame #6: 0x0000fffff7915edc libc.so.6`thread_start at clone.S:79
  thread #4, name = 'radiusd'
    frame #0: 0x0000fffff78a9df8 libc.so.6`__GI___futex_abstimed_wait_cancelable64 at futex-internal.c:57:12
    frame #1: 0x0000fffff78a9dd4 libc.so.6`__GI___futex_abstimed_wait_cancelable64 at futex-internal.c:87:9
    frame #2: 0x0000fffff78a9d40 libc.so.6`__GI___futex_abstimed_wait_cancelable64(futex_word=0x0000aaaaaab4c4a0, expected=0, clockid=<unavailable>, abstime=0x0000000000000000, private=<unavailable>) at futex-internal.c:139:10
    frame #3: 0x0000fffff78b5a5c libc.so.6`__new_sem_wait_slow64(sem=0x0000aaaaaab4c4a0, abstime=<unavailable>, clockid=<unavailable>) at sem_waitcommon.c:183:10
    frame #4: 0x0000aaaaaaae7184 radiusd`request_handler_thread(arg=0x0000aaaaaaf22bc0) at threads.c:741:7
    frame #5: 0x0000fffff78ad5c8 libc.so.6`start_thread(arg=0x0000000000000000) at pthread_create.c:442:8
    frame #6: 0x0000fffff7915edc libc.so.6`thread_start at clone.S:79
  thread #5, name = 'radiusd'
    frame #0: 0x0000fffff78a9df8 libc.so.6`__GI___futex_abstimed_wait_cancelable64 at futex-internal.c:57:12
    frame #1: 0x0000fffff78a9dd4 libc.so.6`__GI___futex_abstimed_wait_cancelable64 at futex-internal.c:87:9
    frame #2: 0x0000fffff78a9d40 libc.so.6`__GI___futex_abstimed_wait_cancelable64(futex_word=0x0000aaaaaab4c4a0, expected=0, clockid=<unavailable>, abstime=0x0000000000000000, private=<unavailable>) at futex-internal.c:139:10
    frame #3: 0x0000fffff78b5a5c libc.so.6`__new_sem_wait_slow64(sem=0x0000aaaaaab4c4a0, abstime=<unavailable>, clockid=<unavailable>) at sem_waitcommon.c:183:10
    frame #4: 0x0000aaaaaaae7184 radiusd`request_handler_thread(arg=0x0000aaaaaaf22970) at threads.c:741:7
    frame #5: 0x0000fffff78ad5c8 libc.so.6`start_thread(arg=0x0000000000000000) at pthread_create.c:442:8
    frame #6: 0x0000fffff7915edc libc.so.6`thread_start at clone.S:79
  thread #6, name = 'radiusd'
    frame #0: 0x0000fffff78a9df8 libc.so.6`__GI___futex_abstimed_wait_cancelable64 at futex-internal.c:57:12
    frame #1: 0x0000fffff78a9dd4 libc.so.6`__GI___futex_abstimed_wait_cancelable64 at futex-internal.c:87:9
    frame #2: 0x0000fffff78a9d40 libc.so.6`__GI___futex_abstimed_wait_cancelable64(futex_word=0x0000aaaaaab4c4a0, expected=0, clockid=<unavailable>, abstime=0x0000000000000000, private=<unavailable>) at futex-internal.c:139:10
    frame #3: 0x0000fffff78b5a5c libc.so.6`__new_sem_wait_slow64(sem=0x0000aaaaaab4c4a0, abstime=<unavailable>, clockid=<unavailable>) at sem_waitcommon.c:183:10
    frame #4: 0x0000aaaaaaae7184 radiusd`request_handler_thread(arg=0x0000aaaaaaf22050) at threads.c:741:7
    frame #5: 0x0000fffff78ad5c8 libc.so.6`start_thread(arg=0x0000000000000000) at pthread_create.c:442:8
    frame #6: 0x0000fffff7915edc libc.so.6`thread_start at clone.S:79
@gk-fschubert gk-fschubert added the defect category: a defect or misbehaviour label Dec 17, 2024
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