rules:
- id: keyvault-ensure-key-expires
  message: >-
    Ensure that the expiration date is set on all keys
  patterns:
  - pattern: resource
  - pattern-not-inside: |
      resource "azurerm_key_vault_key" "..." {
      ...
      expiration_date = "..."
      ...
      }
  - pattern-inside: |
      resource "azurerm_key_vault_key" "..." {
      ...
      }
  metadata:
    cwe:
    - 'CWE-262: Not Using Password Aging'
    category: security
    technology:
    - terraform
    - azure
    references:
    - https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/key_vault_key#expiration_date
    - https://docs.microsoft.com/en-us/powershell/module/az.keyvault/update-azkeyvaultkey?view=azps-5.8.0#example-1--modify-a-key-to-enable-it--and-set-the-expiration-date-and-tags
    subcategory:
    - vuln
    likelihood: LOW
    impact: MEDIUM
    confidence: MEDIUM
  languages: [hcl]
  severity: INFO