Detection: Resource Manager IAM Policy Set

Overview

Detect when an IAM policy was set in GCP Resource Manager. Unauthorized or accidental changes to IAM policies can expose resources to security risks, disrupt access controls, or indicate misconfigurations. Monitoring these events ensures proper access governance and prevents unauthorized modifications.

References:

Usage

Run the detection in your terminal:

powerpipe detection run gcp_audit_log_detections.detection.resource_manager_iam_policy_set

Snapshot and share results via Turbot Pipes:

powerpipe login
powerpipe detection run gcp_audit_log_detections.detection.resource_manager_iam_policy_set --share

SQL

This detection uses a named query:

select
  tp_timestamp as timestamp,
method_name as operation,
resource_name as resource,
authentication_info.principal_email as actor,
tp_source_ip as source_ip,
tp_index as project,
tp_id as source_id,
-- Create new aliases to preserve original row data
*

from
  gcp_audit_log
where
  method_name ilike 'cloudresourcemanager.v%.projects.setiampolicy'
  and severity != 'Error'
-- TODO: Do we need to check operation?
-- and (operation_src is null or operation_src.last = true)

order by
  timestamp desc;

Detection: Resource Manager IAM Policy Set

Overview

Usage

SQL

Tags