Not able to block a specific TLS1.3 cipher
Akhil Pillai
akhilpillai101 at gmail.com
Thu Apr 24 10:29:44 UTC 2025
Hello All,
I have been trying to use only a specific tls1.3 cipher but it fails. I
want to use only SHA256. Below is the debug out.
root at WIFI_TLS1:~# vi /etc/freeradius3/mods-enabled/eap
root at WIFI_TLS1:~# radiusd -Xf
FreeRADIUS Version 3.2.5
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/share/freeradius3/dictionary
including dictionary file /etc/freeradius3/dictionary
including configuration file /etc/freeradius3/radiusd.conf
including configuration file /etc/freeradius3/clients.conf
including files in directory /etc/freeradius3/mods-enabled/
including configuration file /etc/freeradius3/mods-enabled/eap
including configuration file /etc/freeradius3/mods-enabled/pap
including configuration file /etc/freeradius3/mods-enabled/preprocess
including configuration file /etc/freeradius3/mods-enabled/chap
including configuration file /etc/freeradius3/mods-enabled/exec
including configuration file /etc/freeradius3/mods-enabled/expr
including configuration file /etc/freeradius3/mods-enabled/unix
including configuration file /etc/freeradius3/mods-enabled/radutmp
including configuration file /etc/freeradius3/mods-enabled/attr_filter
including configuration file /etc/freeradius3/mods-enabled/mschap
including configuration file /etc/freeradius3/mods-enabled/logintime
including configuration file /etc/freeradius3/mods-enabled/passwd
including configuration file /etc/freeradius3/mods-enabled/files
including configuration file /etc/freeradius3/mods-enabled/realm
including configuration file /etc/freeradius3/mods-enabled/sradutmp
including configuration file /etc/freeradius3/mods-enabled/always
including configuration file /etc/freeradius3/mods-enabled/detail
including configuration file /etc/freeradius3/mods-enabled/digest
including configuration file /etc/freeradius3/mods-enabled/expiration
including files in directory /etc/freeradius3/policy.d/
including configuration file /etc/freeradius3/policy.d/eap
including configuration file /etc/freeradius3/policy.d/accounting
including configuration file /etc/freeradius3/policy.d/filter
including files in directory /etc/freeradius3/sites-enabled/
including configuration file /etc/freeradius3/sites-enabled/default
including configuration file /etc/freeradius3/sites-enabled/inner-tunnel
main {
security {
allow_core_dumps = no
}
name = "radiusd"
prefix = "/usr"
localstatedir = "/var"
logdir = "/var/log"
run_dir = "/var/run/radiusd"
}
main {
name = "radiusd"
prefix = "/usr"
localstatedir = "/var"
sbindir = "/usr/sbin"
logdir = "/var/log"
run_dir = "/var/run/radiusd"
libdir = "/usr/lib/freeradius3"
radacctdir = "/var/db/radacct"
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 = "/var/run/radiusd/radiusd.pid"
checkrad = "/usr/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"
}
}
radiusd: #### Loading Realms and Home Servers ####
radiusd: #### Loading Clients ####
client abc81 {
ipaddr = 192.168.1.81
secret = <<< secret >>>
limit {
max_connections = 16
lifetime = 0
idle_timeout = 30
}
}
client abc83 {
ipaddr = 192.168.1.83
secret = <<< secret >>>
limit {
max_connections = 16
lifetime = 0
idle_timeout = 30
}
}
client abcnet {
ipaddr = 192.168.1.0/24
secret = <<< secret >>>
limit {
max_connections = 16
lifetime = 0
idle_timeout = 30
}
}
client abcBL020 {
ipaddr = 192.168.1.20
secret = <<< secret >>>
limit {
max_connections = 16
lifetime = 0
idle_timeout = 30
}
}
client abcBL002 {
ipaddr = 192.168.1.92
secret = <<< secret >>>
limit {
max_connections = 16
lifetime = 0
idle_timeout = 30
}
}
client abcBL016 {
ipaddr = 192.168.1.96
secret = <<< secret >>>
limit {
max_connections = 16
lifetime = 0
idle_timeout = 30
}
}
client abcnet {
ipaddr = 172.27.70.0/24
secret = <<< secret >>>
limit {
max_connections = 16
lifetime = 0
idle_timeout = 30
}
}
client abcnet {
ipaddr = 172.27.80.0/24
secret = <<< secret >>>
limit {
max_connections = 16
lifetime = 0
idle_timeout = 30
}
}
client localhost {
ipv4addr = *
require_message_authenticator = "no"
secret = <<< secret >>>
nas_type = "other"
proto = "*"
limit {
max_connections = 16
lifetime = 0
idle_timeout = 30
}
}
client routertest {
ipaddr = 172.27.70.15
secret = <<< secret >>>
limit {
max_connections = 16
lifetime = 0
idle_timeout = 30
}
}
Debugger not attached
# Creating Auth-Type = eap
# Creating Autz-Type = New-TLS-Connection
# Creating Auth-Type = mschap
# Creating Auth-Type = PAP
# Creating Auth-Type = CHAP
# Creating Auth-Type = MS-CHAP
radiusd: #### Instantiating modules ####
modules {
# Loaded module rlm_eap
# Loading module "eap" from file /etc/freeradius3/mods-enabled/eap
eap {
default_eap_type = "tls"
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_pap
# Loading module "pap" from file /etc/freeradius3/mods-enabled/pap
pap {
normalise = yes
}
# Loaded module rlm_preprocess
# Loading module "preprocess" from file
/etc/freeradius3/mods-enabled/preprocess
preprocess {
huntgroups = "/etc/freeradius3/mods-config/preprocess/huntgroups"
hints = "/etc/freeradius3/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_chap
# Loading module "chap" from file /etc/freeradius3/mods-enabled/chap
# Loaded module rlm_exec
# Loading module "exec" from file /etc/freeradius3/mods-enabled/exec
exec {
wait = no
input_pairs = "request"
shell_escape = yes
timeout = 10
}
# Loaded module rlm_expr
# Loading module "expr" from file /etc/freeradius3/mods-enabled/expr
expr {
safe_characters =
"@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_:
/äéöüàâæçèéêëîïôœùûüaÿÄÉÖÜßÀÂÆÇÈÉÊËÎÏÔŒÙÛÜŸ"
}
# Loaded module rlm_unix
# Loading module "unix" from file /etc/freeradius3/mods-enabled/unix
unix {
radwtmp = "/var/log/radwtmp"
}
Creating attribute Unix-Group
# Loaded module rlm_radutmp
# Loading module "radutmp" from file /etc/freeradius3/mods-enabled/radutmp
radutmp {
filename = "/var/log/radutmp"
username = "%{User-Name}"
case_sensitive = yes
check_with_nas = yes
permissions = 384
caller_id = yes
}
# Loaded module rlm_attr_filter
# Loading module "attr_filter.post-proxy" from file
/etc/freeradius3/mods-enabled/attr_filter
attr_filter attr_filter.post-proxy {
filename = "/etc/freeradius3/mods-config/attr_filter/post-proxy"
key = "%{Realm}"
relaxed = no
}
# Loading module "attr_filter.pre-proxy" from file
/etc/freeradius3/mods-enabled/attr_filter
attr_filter attr_filter.pre-proxy {
filename = "/etc/freeradius3/mods-config/attr_filter/pre-proxy"
key = "%{Realm}"
relaxed = no
}
# Loading module "attr_filter.access_reject" from file
/etc/freeradius3/mods-enabled/attr_filter
attr_filter attr_filter.access_reject {
filename = "/etc/freeradius3/mods-config/attr_filter/access_reject"
key = "%{User-Name}"
relaxed = no
}
# Loading module "attr_filter.access_challenge" from file
/etc/freeradius3/mods-enabled/attr_filter
attr_filter attr_filter.access_challenge {
filename = "/etc/freeradius3/mods-config/attr_filter/access_challenge"
key = "%{User-Name}"
relaxed = no
}
# Loading module "attr_filter.accounting_response" from file
/etc/freeradius3/mods-enabled/attr_filter
attr_filter attr_filter.accounting_response {
filename = "/etc/freeradius3/mods-config/attr_filter/accounting_response"
key = "%{User-Name}"
relaxed = no
}
# Loading module "attr_filter.coa" from file
/etc/freeradius3/mods-enabled/attr_filter
attr_filter attr_filter.coa {
filename = "/etc/freeradius3/mods-config/attr_filter/coa"
key = "%{User-Name}"
relaxed = no
}
# Loaded module rlm_mschap
# Loading module "mschap" from file /etc/freeradius3/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
}
# Loaded module rlm_logintime
# Loading module "logintime" from file
/etc/freeradius3/mods-enabled/logintime
logintime {
minimum_timeout = 60
}
# Loaded module rlm_passwd
# Loading module "etc_passwd" from file
/etc/freeradius3/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_files
# Loading module "files" from file /etc/freeradius3/mods-enabled/files
files {
filename = "/etc/freeradius3/mods-config/files/authorize"
acctusersfile = "/etc/freeradius3/mods-config/files/accounting"
preproxy_usersfile = "/etc/freeradius3/mods-config/files/pre-proxy"
}
# Loaded module rlm_realm
# Loading module "IPASS" from file /etc/freeradius3/mods-enabled/realm
realm IPASS {
format = "prefix"
delimiter = "/"
ignore_default = no
ignore_null = no
}
# Loading module "suffix" from file /etc/freeradius3/mods-enabled/realm
realm suffix {
format = "suffix"
delimiter = "@"
ignore_default = no
ignore_null = no
}
# Loading module "bangpath" from file /etc/freeradius3/mods-enabled/realm
realm bangpath {
format = "prefix"
delimiter = "!"
ignore_default = no
ignore_null = no
}
# Loading module "realmpercent" from file
/etc/freeradius3/mods-enabled/realm
realm realmpercent {
format = "suffix"
delimiter = "%"
ignore_default = no
ignore_null = no
}
# Loading module "ntdomain" from file /etc/freeradius3/mods-enabled/realm
realm ntdomain {
format = "prefix"
delimiter = "\"
ignore_default = no
ignore_null = no
}
# Loading module "sradutmp" from file
/etc/freeradius3/mods-enabled/sradutmp
radutmp sradutmp {
filename = "/var/log/sradutmp"
username = "%{User-Name}"
case_sensitive = yes
check_with_nas = yes
permissions = 420
caller_id = no
}
# Loaded module rlm_always
# Loading module "reject" from file /etc/freeradius3/mods-enabled/always
always reject {
rcode = "reject"
simulcount = 0
mpp = no
}
# Loading module "fail" from file /etc/freeradius3/mods-enabled/always
always fail {
rcode = "fail"
simulcount = 0
mpp = no
}
# Loading module "ok" from file /etc/freeradius3/mods-enabled/always
always ok {
rcode = "ok"
simulcount = 0
mpp = no
}
# Loading module "handled" from file /etc/freeradius3/mods-enabled/always
always handled {
rcode = "handled"
simulcount = 0
mpp = no
}
# Loading module "invalid" from file /etc/freeradius3/mods-enabled/always
always invalid {
rcode = "invalid"
simulcount = 0
mpp = no
}
# Loading module "userlock" from file /etc/freeradius3/mods-enabled/always
always userlock {
rcode = "userlock"
simulcount = 0
mpp = no
}
# Loading module "notfound" from file /etc/freeradius3/mods-enabled/always
always notfound {
rcode = "notfound"
simulcount = 0
mpp = no
}
# Loading module "noop" from file /etc/freeradius3/mods-enabled/always
always noop {
rcode = "noop"
simulcount = 0
mpp = no
}
# Loading module "updated" from file /etc/freeradius3/mods-enabled/always
always updated {
rcode = "updated"
simulcount = 0
mpp = no
}
# Loaded module rlm_detail
# Loading module "detail" from file /etc/freeradius3/mods-enabled/detail
detail {
filename =
"/var/db/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
}
# Loaded module rlm_digest
# Loading module "digest" from file /etc/freeradius3/mods-enabled/digest
# Loaded module rlm_expiration
# Loading module "expiration" from file
/etc/freeradius3/mods-enabled/expiration
instantiate {
}
# Instantiating module "eap" from file /etc/freeradius3/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 = "/etc/freeradius3/certs"
pem_file_type = yes
private_key_file = "/etc/freeradius3/certs/hostapd.server.prv"
certificate_file = "/etc/freeradius3/certs/hostapd.server.pem"
ca_file = "/etc/freeradius3/certs/hostapd.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 = "TLS_AES_128_GCM_SHA256"
cipher_server_preference = 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 = yes
url = "http://127.0.0.1/ocsp/"
use_nonce = yes
timeout = 0
softfail = no
}
}
tls: (TLS) Failed setting cipher list: error:0A0000B9:SSL routines::no
cipher match
rlm_eap_tls: Failed initializing SSL context
rlm_eap (EAP): Failed to initialise rlm_eap_tls
/etc/freeradius3/mods-enabled/eap[14]: Instantiation failed for module "eap"
Any idea why this fails?
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