turbot/steampipe-mod-kubernetes-compliance

Control: Pod containers argument authorization mode should not be set to 'always allow'

Description

This check ensures that the container in the Pod has argument authorization mode not set to 'always allow'.

Usage

Run the control in your terminal:

powerpipe control run kubernetes_compliance.control.pod_container_argument_authorization_mode_no_always_allow

Snapshot and share results via Turbot Pipes:

powerpipe login
powerpipe control run kubernetes_compliance.control.pod_container_argument_authorization_mode_no_always_allow --share

SQL

This control uses a named query:

with container_list as (
select
c ->> 'name' as container_name,
trim('"' from split_part(co::text, '=', 2)) as value,
p.name as pod
from
kubernetes_pod as p,
jsonb_array_elements(containers) as c,
jsonb_array_elements(c -> 'command') as co
where
(co)::text LIKE '%--authorization-mode=%'
), container_name_with_pod_name as (
select
p.name as pod_name,
p.uid as pod_uid,
p.path as path,
p.start_line as start_line,
p.end_line as end_line,
p.context_name as context_name,
p.namespace as namespace,
p.source_type as source_type,
p.tags as tags,
p._ctx as _ctx,
c.*
from
kubernetes_pod as p,
jsonb_array_elements(containers) as c
)
select
coalesce(p.pod_uid, concat(p.path, ':', p.start_line)) as resource,
case
when (p.value -> 'command') is null or not ((p.value -> 'command') @> '["kube-apiserver"]') then 'ok'
when l.container_name is not null and (p.value -> 'command') @> '["kube-apiserver"]' and ((l.value) like '%AlwaysAllow%') then 'alarm'
else 'ok'
end as status,
case
when (p.value -> 'command') is null then p.value ->> 'name' || ' command not defined.'
when not ((p.value -> 'command') @> '["kube-apiserver"]') then p.value ->> 'name' || ' kube-apiserver not defined.'
when l.container_name is not null and (p.value -> 'command') @> '["kube-apiserver"]' and ((l.value) like '%AlwaysAllow%') then p.value ->> 'name' || ' authorization mode set to always allow.'
else p.value ->> 'name' || ' authorization mode not set to always allow.'
end as reason,
p.pod_name as pod_name
, coalesce(context_name, '') as context_name, namespace, source_type, coalesce(path || ':' || start_line || '-' || end_line, '') as path
from
container_name_with_pod_name as p
left join container_list as l on p.value ->> 'name' = l.container_name and p.pod_name = l.pod;

Tags