Detection: App Engine Firewall Ingress Rule Deleted

Overview

Detect when an App Engine Firewall Ingress Rule was deleted. The removal of firewall rules may leave applications and services vulnerable to unauthorized access. Monitoring deletions ensures the integrity of security configurations and prevents accidental or malicious rule removal.

References:

Usage

Run the detection in your terminal:

powerpipe detection run gcp_audit_log_detections.detection.app_engine_firewall_ingress_rule_deleted

Snapshot and share results via Turbot Pipes:

powerpipe login
powerpipe detection run gcp_audit_log_detections.detection.app_engine_firewall_ingress_rule_deleted --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 'google.app_engine.v%.firewall.deleteingressrule'
  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: App Engine Firewall Ingress Rule Deleted

Overview

Usage

SQL

Tags