Identity and Access Management for the Amazon CLI - Amazon Command Line Interface
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China.

Identity and Access Management for the Amazon CLI

The Amazon Command Line Interface (Amazon CLI) uses the same users and roles to access your Amazon resources and their services. The policies that grant permissions are the same because the Amazon CLI calls the same API operations that are used by the service console. For more information, see the "Identity and Access Management" section in the "Security" chapter of the Amazon service that you want to use.

The only major difference is how you authenticate when using a standard IAM user and long-term credentials. Although an IAM user requires a password to access an Amazon service's console, that same IAM user requires an access key pair to perform the same operations using the Amazon CLI. All other short-term credentials are used in the same way they are used with the console.

The credentials used by the Amazon CLI are stored in plaintext files and are not encrypted.

  • The $HOME/.aws/credentials file stores long-term credentials required to access your Amazon resources. These include your access key ID and secret access key.

  • Short-term credentials, such as those for roles that you assume, or that are for Amazon IAM Identity Center (successor to Amazon Single Sign-On) services, are also stored in the $HOME/.aws/cli/cache and $HOME/.aws/sso/cache folders, respectively.

Mitigation of Risk

  • We strongly recommend that you configure your file system permissions on the $HOME/.aws folder and its child folders and files to restrict access to only authorized users.

  • Use roles with temporary credentials wherever possible to reduce the opportunity for damage if the credentials are compromised. Use long-term credentials only to request and refresh short-term role credentials.