Control: WAF web ACLs should have rules with actions

powerpipe control run terraform_aws_compliance.control.waf_web_acl_rule_with_action

powerpipe login
powerpipe control run terraform_aws_compliance.control.waf_web_acl_rule_with_action --share

with rules_without_action as (
  select
    address as name
  from
    terraform_resource,
    jsonb_array_elements(
    case jsonb_typeof(attributes_std -> 'rules')
      when 'array' then (attributes_std -> 'rules')
      else null end
    ) as r
  where
   ( r -> 'action' is null or (r -> 'action' = '{}'))
    and type = 'aws_waf_web_acl'
)
select
  r.address as resource,
  case
    when (jsonb_typeof(attributes_std -> 'rules') = 'array') and a.name is null then 'ok'
    when (jsonb_typeof(attributes_std -> 'rules') = 'array') and a.name is not null then 'alarm'
    when (attributes_std -> 'rules' ->> 'action') is not null then 'ok'
    else 'alarm'
  end as status,
  split_part(r.address, '.', 2) || case
    when (jsonb_typeof(attributes_std -> 'rules') = 'array') and a.name is null then ' has all rules with action attached'
    when (jsonb_typeof(attributes_std -> 'rules') = 'array') and a.name is not null then ' has rules with no action attached'
    when (attributes_std -> 'rules' ->> 'action') is not null then ' has rule with action attached'
    else ' has rules with no action attached'
  end || '.' reason
  
  , path || ':' || start_line
from
  terraform_resource as r
  left join rules_without_action as a on a.name = r.address
where
  r.type = 'aws_waf_web_acl';