turbot/kubernetes_compliance

Query: deployment_container_strong_kube_apiserver_cryptographic_ciphers

Usage

powerpipe query kubernetes_compliance.query.deployment_container_strong_kube_apiserver_cryptographic_ciphers

Steampipe Tables

SQL

with container_list as (
select
c ->> 'name' as container_name,
trim('"' from split_part(co::text, '=', 2)) as value,
d.name as deployment
from
kubernetes_deployment as d,
jsonb_array_elements(template -> 'spec' -> 'containers') as c,
jsonb_array_elements_text(c -> 'command') as co
where
co like '%--tls-cipher-suites=%'
), container_name_with_deployment_name as (
select
d.name as deployment_name,
d.uid as deployment_uid,
d.path as path,
d.start_line as start_line,
d.end_line as end_line,
d.context_name as context_name,
d.namespace as namespace,
d.source_type as source_type,
d.tags as tags,
d._ctx as _ctx,
c.*
from
kubernetes_deployment as d,
jsonb_array_elements(template -> 'spec' -> 'containers') as c
)
select
coalesce(d.deployment_uid, concat(d.path, ':', d.start_line)) as resource,
case
when (d.value -> 'command') is null or not ((d.value -> 'command') @> '["kube-apiserver"]') then 'ok'
when l.container_name is not null and (d.value -> 'command') @> '["kube-apiserver"]'
and string_to_array(l.value, ',') <@ array['TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256','TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256','TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305','TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384','TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305','TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384','TLS_RSA_WITH_AES_256_GCM_SHA384','TLS_RSA_WITH_AES_128_GCM_SHA256']
then 'ok'
else 'alarm'
end as status,
case
when (d.value -> 'command') is null then d.value ->> 'name' || ' command not defined.'
when not ((d.value -> 'command') @> '["kube-apiserver"]') then d.value ->> 'name' || ' kube-apiserver not defined.'
when l.container_name is not null and (d.value -> 'command') @> '["kube-apiserver"]'
and string_to_array(l.value, ',') <@ array['TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256','TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256','TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305','TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384','TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305','TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384','TLS_RSA_WITH_AES_256_GCM_SHA384','TLS_RSA_WITH_AES_128_GCM_SHA256']
then d.value ->> 'name' || ' kube-apiserver uses strong cryptographic ciphers.'
else d.value ->> 'name' || ' kube-apiserver not using strong cryptographic ciphers.'
end as reason,
d.deployment_name as deployment_name
, coalesce(context_name, '') as context_name, namespace, source_type, coalesce(path || ':' || start_line || '-' || end_line, '') as path
from
container_name_with_deployment_name as d
left join container_list as l on d.value ->> 'name' = l.container_name and d.deployment_name = l.deployment;

Controls

The query is being used by the following controls: