Metadata

Id: terraform-azure-secret-expiration-not-set

Provider: Azure

Platform: Terraform

Severity: Medium

Category: Secret Management

Learn More

• Provider Reference

Description

Secrets stored in Azure Key Vault using the azurerm_key_vault_secret resource should always have an expiration_date set to ensure that sensitive credentials are not usable indefinitely. Failing to set an expiration date may result in forgotten or stale secrets lingering in your environment, increasing the risk of those secrets being misused if an account is compromised or a process changes. For a more secure configuration, explicitly specify the expiration_date attribute, as shown below:

resource "azurerm_key_vault_secret" "example" {
    name             = "api-key"
    value            = "supersecret"
    key_vault_id     = azurerm_key_vault.example.id

    expiration_date  = "2025-01-01T00:00:00Z"
}

Compliant Code Examples

resource "azurerm_key_vault_secret" "negative1" {
    name         = "secret-sauce"
    value        = "szechuan"
    key_vault_id = azurerm_key_vault.example.id

    tags = {
    environment = "Production"
    }
    expiration_date = "2020-12-30T20:00:00Z"
}

Non-Compliant Code Examples

resource "azurerm_key_vault_secret" "positive1" {
    name         = "secret-sauce"
    value        = "szechuan"
    key_vault_id = azurerm_key_vault.example.id

    tags = {
    environment = "Production"
    }
}