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Assessment Title
Rule Text
Exchange must have forms-based authentication enabled.
Description
Discussion Text
Identification and Authentication provide the foundation for access control. Access to email services applications in the DoW requires authentication using DoW Public Key Infrastructure (PKI) certificates. Authentication for Outlook Web App (OWA) is used to enable web access to user email mailboxes and should assume that certificate-based authentication has been configured. This setting controls whether forms-based logon should be used by the OWA website.
Because the DoW requires Common Access Card (CAC)-based authentication to applications, OWA access must be brokered through an application proxy or other preauthenticator, which performs CAC authentication prior to arrival at the CA server. The authenticated request is then forwarded directly to OWA, where authentication is repeated without requiring the user to repeat authentication steps. For this scenario to work, the Application Proxy server must have forms-based authentication enabled, and Exchange must have forms-based Authentication disabled.
If forms-based Authentication is enabled on the Exchange CA server, it is evidence that the application proxy server is either not correctly configured, or it may be missing.
Because the DoW requires Common Access Card (CAC)-based authentication to applications, OWA access must be brokered through an application proxy or other preauthenticator, which performs CAC authentication prior to arrival at the CA server. The authenticated request is then forwarded directly to OWA, where authentication is repeated without requiring the user to repeat authentication steps. For this scenario to work, the Application Proxy server must have forms-based authentication enabled, and Exchange must have forms-based Authentication disabled.
If forms-based Authentication is enabled on the Exchange CA server, it is evidence that the application proxy server is either not correctly configured, or it may be missing.
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