gcloud-api-keys-present: Delete Google Cloud API Keys

id: gcloud-api-keys-present

info:
  name: Delete Google Cloud API Keys
  author: princechaddha
  severity: low
  description: |
    Ensure that all your Google Cloud projects are using standard authentication flow instead of API keys for authentication. Google Cloud Platform (GCP) API keys are simple encrypted strings that can be used when calling certain APIs which don't need to access private user data. GCP API keys are usually accessible to clients, as they can be publicly viewed from within a browser, making it easy to discover and steal an API key.
  impact: |
    Using API keys that are publicly accessible can lead to unauthorized access and potential security breaches.
  remediation: |
    Remove all API keys and replace them with standard authentication methods to secure your applications.
  reference:
    - https://cloud.google.com/docs/authentication/api-keys
  tags: cloud,devops,gcp,gcloud,google-cloud-api,gcp-cloud-config

flow: |
  code(1)
  for(let projectId of iterate(template.projectIds)){
    set("projectId", projectId)
    code(2)
    for(let apiKey of iterate(template.apiKeys)){
      javascript(1)
    }
  }

self-contained: true

code:
  - engine:
      - sh
      - bash
    source: |
      gcloud projects list --format="json(projectId)"
    extractors:
      - type: json
        name: projectIds
        internal: true
        json:
          - '.[].projectId'

  - engine:
      - sh
      - bash
    source: |
      gcloud alpha services api-keys list --project=$projectId --format="json(keyId)"
    extractors:
      - type: json
        name: apiKeys
        internal: true
        json:
          - '.[].keyId'

javascript:
  - code: |
      let apiKey = template.apiKey;
      let projectId = template.projectId;
      if (apiKey) {
        Export("API key " + apiKey + " found in Project " + projectId);
      }

    extractors:
      - type: dsl
        dsl:
          - response
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