AWS SAML Implementation
This article contains AWS-specific help for configuring login with SSO via SAML 2.0. For help configuring login with SSO for another IdP, refer to SAML 2.0 Configuration.
Configuration involves working simultaneously within the Bitwarden web vault and the AWS Console. As you proceed, we recommend having both readily available and completing steps in the order they are documented.
Already an SSO expert? Skip the instructions in this article and download screenshots of sample configurations to compare against your own.
Navigate to your organization's Settings → Single sign-on screen:
If you haven't already, create a unique SSO identifier for your organization and select SAML from the the Type dropdown. Keep this screen open for easy reference.
You can turn off the Set a unique SP entity ID option at this stage if you wish. Doing so will remove your organization ID from your SP entity ID value, however in almost all cases it is recommended to leave this option on.
In the AWS Console, navigate to AWS SSO, select Applications from the navigation, and select the Add a new application button:
Underneath the search bar, select the Add a custom SAML 2.0 application option:
Give the application a unique, Bitwarden-specific Display name.
You will need the information in this section for a later configuration step. Copy the AWS SSO sign-in URL and AWS SSO issuer URL, and download the AWS SSO certificate:
In the Application start URL field, specify the login URL from which users will access Bitwarden. For cloud-hosted customers, this is always
https://vault.bitwarden.com/#/sso. For self-hosted instances, this is determined by your configured server URL, for example
In the application metadata section, select the option to manually enter metadata values:
Configure the following fields:
When you are finished, select Save changes.
Navigate to the Attribute mappings tab and configure the following mappings:
Navigate to the Assigned users tab and select the Assign users button:
You can assign users to the application on an individual level, or by Group.
At this point, you have configured everything you need within the context of the AWS Console. Return to the Bitwarden web vault to complete configuration.
The Single Sign-On screen separates configuration into two sections:
SAML Service Provider Configuration will determine the format of SAML requests.
SAML Identity Provider Configuration will determine the format to expect for SAML responses.
Service provider configuration should already be complete, however you may choose to edit any of the following fields:
When you are done with the service provider configuration, Save your work.
Identity Provider Configuration will often require you to refer back to the AWS Console to retrieve application values:
When completing the X509 certificate, take note of the expiration date. Certificates will have to be renewed in order to prevent any disruptions in service to SSO end users. If a certificate has expired, Admin and Owner accounts will always be able to log in with email address and master password.
When you are done with the identity provider configuration, Save your work.
You can require users to log in with SSO by activating the single sign-on authentication policy. Please note, this will require activating the single organization policy as well. Learn more.
Once your configuration is complete, test it by navigating to https://vault.bitwarden.com, entering your email address, selecting Continue, and selecting the Enterprise Single-On button:
Enter the configured organization identifier and select Log In. If your implementation is successfully configured, you will be redirected to the AWS SSO login screen:
After you authenticate with your AWS credentials, enter your Bitwarden master password to decrypt your vault!
Bitwarden does not support unsolicited responses, so initiating login from your IdP will result in an error. The SSO login flow must be initiated from Bitwarden.