High Google KMS Crypto Key Rotation Period

Query id: d8c57c4e-bf6f-4e32-a2bf-8643532de77b
Query name: High Google KMS Crypto Key Rotation Period
Platform: Terraform
Severity: Medium
Category: Secret Management
URL: Github

Description¶

KMS encryption keys should be rotated every 90 days or less. A short lifetime of encryption keys reduces the potential blast radius in case of compromise.
Documentation

Code samples¶

Code samples with security vulnerabilities¶

Postitive test num. 1 - tf file

resource "google_kms_crypto_key" "positive1" {
  name            = "crypto-key-example"
  key_ring        = google_kms_key_ring.keyring.id
  rotation_period = "77760009s"
  lifecycle {
    prevent_destroy = true
  }
}

resource "google_kms_crypto_key" "positive2" {
  name            = "crypto-key-example"
  key_ring        = google_kms_key_ring.keyring.id
  lifecycle {
    prevent_destroy = true
  }
}

Code samples without security vulnerabilities¶

Negative test num. 1 - tf file

resource "google_kms_crypto_key" "negative1" {
  name            = "crypto-key-example"
  key_ring        = google_kms_key_ring.keyring.id
  rotation_period = "100000s"
  lifecycle {
    prevent_destroy = true
  }
}