Query: ec2_instance_no_iam_role_attached_with_credentials_exposure_access

with iam_roles as (
  select
    r.arn as role_arn,
    i.arn as intance_arn
  from
    aws_iam_role as r,
    jsonb_array_elements_text(instance_profile_arns) as p
    left join aws_ec2_instance as i on p = i.iam_instance_profile_arn
  where
    i.arn is not null
), iam_role_with_permission as (
  select
    arn
  from
    aws_iam_role,
    jsonb_array_elements(assume_role_policy_std -> 'Statement') as s,
    jsonb_array_elements_text(s -> 'Principal' -> 'Service') as service,
    jsonb_array_elements_text(s -> 'Action') as action
  where
    arn in (select role_arn from iam_roles)
    and  s ->> 'Effect' = 'Allow'
    and service = 'ec2.amazonaws.com'
    and action in (
      'chime:createapikey', 'codepipeline:pollforjobs', 'cognito-identity:getopenidtoken', 'cognito-identity:getopenidtokenfordeveloperidentity', 'cognito-identity:getcredentialsforidentity', 'connect:getfederationtoken', 'connect:getfederationtokens', 'ec2:getpassworddata', 'ecr:getauthorizationtoken', 'gamelift:requestuploadcredentials', 'iam:createaccesskey', 'iam:createloginprofile', 'iam:createservicespecificcredential', 'iam:resetservicespecificcredential', 'iam:updateaccesskey', 'lightsail:getinstanceaccessdetails', 'lightsail:getrelationaldatabasemasteruserpassword', 'rds-db:connect', 'redshift:getclustercredentials', 'sso:getrolecredentials', 'mediapackage:rotatechannelcredentials', 'mediapackage:rotateingestendpointcredentials', 'sts:assumerole', 'sts:assumerolewithsaml', 'sts:assumerolewithwebidentity', 'sts:getfederationtoken', 'sts:getsessiontoken','*:*'
    )
)
select
  i.arn as resource,
  case
    when p.arn is null then 'ok'
    else 'alarm'
  end status,
  case
    when p.arn is null then title || ' has no IAM role attached with credentials exposure permissions.'
    else title || ' has IAM role attached with credentials exposure permissions.'
  end as reason
  
  , i.account_id
from
  aws_ec2_instance as i
  left join iam_roles as r on r.intance_arn = i.arn
  left join iam_role_with_permission as p on p.arn = r.role_arn;