Cloudpath | Error "Unable to authorize via SAML", G-Suite Authentication fails

[Orlando_Elias]

Issue: Users experiencing authentication failures when using SAML-based authentication, particularly with external services like G-Suite.

Root Cause: The Security Assertion Markup Language (SAML) relies on precise time synchronization between the systems involved (identity provider, service provider, and user's device) to ensure the security of authentication transactions.

Resolution:

• Ensure Accurate Time Configuration:

  • Confirm that both the Cloudpath instance and the virtual server have accurate time configurations.
  • Point NTP configurations to a reliable NTP server, such as RUCKUS's public NTP server (ntp.ruckuswireless.com).

• Automatic Time Synchronization:

  • Set up automatic NTP synchronization to ensure consistent and accurate time across systems.
  • Regularly monitor NTP synchronization to detect and address any time drift issues promptly.

Follow this guide for instructions on how to configure SAML services in RUCKUS Cloudpath.

How SAML Works:

1. Request Initiation:

   • User requests access to a service.
   • Service Provider (SP) redirects the user to the Identity Provider (IdP) for authentication.

2. Authentication:

   • IdP authenticates the user by requesting credentials (e.g., username and password).
   • IdP generates a SAML assertion containing authentication information encrypted with the SP's public key and user details.

3. SAML Assertion:

   • SAML assertion includes a timestamp to ensure its freshness.
   • If the SAML assertion is too old (beyond a defined time window), the assertion is considered invalid.

4. Response to Service Provider:

   • IdP sends the SAML assertion back to the user's browser.

5. Access Granted:

   • User's browser submits the SAML assertion to the SP.
   • SP validates the assertion's authenticity and, if valid, grants access.