Control: Application Gateway should restrict message lookup in Log4j2

powerpipe control run terraform_azure_compliance.control.application_gateway_restrict_message_lookup_log4j2

powerpipe login
powerpipe control run terraform_azure_compliance.control.application_gateway_restrict_message_lookup_log4j2 --share

with managed_rule as (
  select
    distinct name
  from
    terraform_resource,
    jsonb_array_elements (
      case jsonb_typeof(attributes_std -> 'managed_rules' -> 'managed_rule_set')
        when 'array' then (attributes_std -> 'managed_rules' -> 'managed_rule_set')
        when 'object' then jsonb_build_array(attributes_std -> 'managed_rules' -> 'managed_rule_set')
        else null end
      ) r,
    jsonb_array_elements(
        case jsonb_typeof(r -> 'rule_group_override')
        when 'array' then (r -> 'rule_group_override')
        when 'object' then jsonb_build_array(r -> 'rule_group_override')
        else null end
      ) as o
  where
    type = 'azurerm_web_application_firewall_policy'
    and r ->> 'type' = 'OWASP'
    and r ->> 'version' in ('3.1', '3.2')
    and o ->> 'rule_group_name' = 'REQUEST-944-APPLICATION-ATTACK-JAVA'
    and o -> 'disabled_rules' @> '["944240"]'
), managed_rule_set_version as (
  select
    distinct name
  from
    terraform_resource,
    jsonb_array_elements (
      case jsonb_typeof(attributes_std -> 'managed_rules' -> 'managed_rule_set')
        when 'array' then (attributes_std -> 'managed_rules' -> 'managed_rule_set')
        when 'object' then jsonb_build_array(attributes_std -> 'managed_rules' -> 'managed_rule_set')
        else null end
      ) r
  where
    type = 'azurerm_web_application_firewall_policy'
    and r ->> 'type' = 'OWASP'
    and r ->> 'version' not in ('3.1', '3.2')
)
select
  address as resource,
  case
    when v.name is not null then 'alarm'
    when m.name is not null then 'alarm'
    else 'ok'
  end status,
  split_part(address, '.', 2) || case
    when v.name is not null then ' managed rule set vesion is old'
    when m.name is not null then ' does not restrict message lookup in Log4j2'
    else ' restrict message lookup in Log4j2'
  end || '.' reason
  
  , path || ':' || start_line
from
  terraform_resource as r
  left join managed_rule as m on r.name = m.name
  left join managed_rule_set_version as v on v.name = r.name
where
  type = 'azurerm_web_application_firewall_policy';