Control: 8.4 Ensure that the Expiration Date is set for all Secrets in Non-RBAC Key Vaults

Description

The Azure Key Vault enables users to store and keep secrets within the Microsoft Azure environment. Secrets in the Azure Key Vault are octet sequences with a maximum size of 25k bytes each. The exp (expiration time) attribute identifies the expiration time on or after which the secret MUST NOT be used. By default, secrets never expire. It is thus recommended to rotate secrets in the key vault and set an explicit expiration time for all secrets. This ensures that the secrets cannot be used beyond their assigned lifetimes.

Remediation

From Console

1. Go to Key vaults
2. For each Key vault, click on Keys.
3. Under the Settings section, Make sure Enabled is set to Yes
4. Set an appropriate EXPIRATION DATE on all keys.

From Command Line

Command to update the Expiration Date for the key

az keyvault key set-attributes --name <keyName> --vault-name <vaultName> -- expires Y-m-d'T'H:M:S'Z'

Note

By default, secrets do not expire.