terraform.gcp.security.gcp-dataproc-cluster-encrypted-with-cmk.gcp-dataproc-cluster-encrypted-with-cmk

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Ensure Dataproc cluster is encrypted with Customer Supplied Encryption Keys (CSEK)

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Defintion

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rules:
  - id: gcp-dataproc-cluster-encrypted-with-cmk
    patterns:
      - pattern: |
          resource "google_dataproc_cluster" $ANYTHING {
            ...
          }
      - pattern-not-inside: |
          resource "google_dataproc_cluster" $ANYTHING {
            ...
            cluster_config {
              encryption_config {
                ...
                kms_key_name = ...
                ...
              }
            }
            ...
          }
    message: "Ensure Dataproc cluster is encrypted with Customer Supplied Encryption
      Keys (CSEK)\t"
    metadata:
      category: security
      technology:
        - terraform
        - gcp
      owasp:
        - A03:2017 - Sensitive Data Exposure
      cwe:
        - "CWE-320: CWE CATEGORY: Key Management Errors"
      references:
        - https://owasp.org/Top10/A02_2021-Cryptographic_Failures
      subcategory:
        - audit
      likelihood: LOW
      impact: LOW
      confidence: LOW
      license: Commons Clause License Condition v1.0[LGPL-2.1-only]
      vulnerability_class:
        - Cryptographic Issues
    languages:
      - hcl
    severity: WARNING

Examples

gcp-dataproc-cluster-encrypted-with-cmk.tf

# fail
# ruleid: gcp-dataproc-cluster-encrypted-with-cmk
resource "google_dataproc_cluster" "fail" {
  name   = "simplecluster"
  region = "us-central1"
  cluster_config {

  }
}

# ok: gcp-dataproc-cluster-encrypted-with-cmk
resource "google_dataproc_cluster" "pass" {
  name   = "simplecluster"
  region = "us-central1"
  cluster_config {
     encryption_config {
       kms_key_name = "SecretSquirrel"
     }
  }
}