policy-library/policies/constraints/restrict_fw_rules_world_open.yaml

# Copyright 2021 Google LLC
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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#     https://www.apache.org/licenses/LICENSE-2.0
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apiVersion: constraints.gatekeeper.sh/v1alpha1
kind: GCPRestrictedFirewallRulesConstraintV1
metadata:
  name: restrict-firewall-rule-world-open
  annotations:
    bundles.validator.forsetisecurity.org/forseti-security: v2.26.0
    bundles.validator.forsetisecurity.org/scorecard-v1: security
    description: Checks for open firewall rules allowing ingress from the internet.
spec:
  severity: high
  match:
    target: # {"$ref":"#/definitions/io.k8s.cli.setters.target"}
    - organizations/**
  parameters:
    rules:
    - direction: INGRESS
      source_ranges:
      - 0.0.0.0/0
      enabled: 'true'
      rule_type: allowed