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A startup uses Vault to manage secrets for their web application. They currently have a single admin user who authenticates with a root token. They want to allow two developers to authenticate with their own credentials and restrict them to read-only access to a specific path 'secret/data/webapp'. They decide to use the Userpass auth method. The admin creates a user 'dev1' with password 'password123' and assigns a policy 'webapp-readonly' that grants read capability on 'secret/data/webapp'. However, when dev1 tries to log in, Vault returns a permission denied error. The admin checks the token and sees no policies attached. What is the most likely issue?
The most likely issue is that the admin created the user 'dev1' but did not assign any policies to that user. In Vault's Userpass auth method, simply creating a user does not attach any policies; the admin must explicitly specify the policies when creating or updating the user. W…Read full explanation
An administrator wants to ensure that a token created by a user cannot be used after 24 hours, even if the user tries to renew it. What should the administrator do?
Setting an explicit max TTL on the token to 24h ensures that the token's lifetime cannot be extended beyond 24 hours, even if the user attempts to renew it. In Vault, the `explicit_max_ttl` parameter overrides any renewal requests, enforcing a hard upper limit on the token's vali…Read full explanation
After rotating the 'payment-key', Vault successfully decrypts data encrypted with the old key (v1). What is the most likely reason the decryption succeeded?
A is correct because Vault uses key versioning: when a key is rotated, the old key version (v1) is retained for decryption purposes. The ciphertext includes metadata referencing the key version used for encryption, so Vault automatically selects the correct old key version to dec…Read full explanation
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