### AWS Auth Role configuration requires an external_id

#### Affected Versions

- 1.17.0 - 1.17.3

#### Issue

You must set the `external_id` parameter during role configuration, or the Vault
AWS authentication plugin returns a validation error.

#### Workaround

To avoid the error during configuration:

1. Set the `external_id` parameter when configuring AWS authentication plugin
   with a valid ID or any string longer than two characters.
1. Configure any desired roles. 
1. If you used an arbitrary string, remove the external ID.
