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🛡️ Setting up a SAML 2.0 Connection with Microsoft Azure

Jason
Updated

Setting up SAML 2.0 Single Sign-On (SSO) on Microsoft Azure is a common task for enabling secure, federated identity management across different applications. SAML (Security Assertion Markup Language) 2.0 is a standard for exchanging authentication and authorization data between security domains.

This article outlines how to configure SAML 2.0 SSO in Azure, focusing on using Azure Active Directory (Azure AD) as the identity provider.

🧰 Prerequisites

To get started, you’ll need the following:

  • Azure Subscription: Access to an Azure subscription that includes Azure Active Directory.

  • Azure AD Premium: Some SAML-related features require a premium license.

  • Application to Integrate: The external app must support SAML 2.0 for SSO.

🛠️ Steps to Configure SAML 2.0 SSO in Azure AD

1. Register the Application in Azure AD

  • Azure Portal: Go to the Azure portal and access Azure Active Directory.

  • Enterprise Applications: Navigate to "Enterprise applications" and click "New application".

  • Add an Application:

    • Choose from the gallery (e.g., Salesforce, Dropbox), or

    • Create a non-gallery application if the app is not listed.

2. Configure SAML Settings

  • Single Sign-On: In the application settings, navigate to "Single sign-on" and choose SAML.

  • Basic SAML Configuration:

    • Identifier (Entity ID): Unique identifier used to format the SAML assertions.

    • Reply URL (Assertion Consumer Service URL): Where Azure sends the SAML assertion.

    • Sign-on URL (optional): Where users are redirected to initiate login.

3. Set Up Azure AD as Identity Provider

  • Download Federation Metadata XML:

    • This file includes the login URL, public key, and other configuration details the app needs to validate SAML responses from Azure AD.

  • Certificates:

    • Manage signing certificates (Azure AD rotates these periodically).

4. Configure the Application to Use Azure AD as SSO

  • Upload Azure Metadata to the Application:

    • Import the Federation Metadata XML to the application to configure Azure AD as the identity provider.

  • Map User Attributes & Claims:

    • Set how Azure AD user attributes and claims are passed in the SAML response.

    • Azure allows full customization of claims.

5. Test SSO

  • Test Configuration:

    • Validate your setup to ensure users can authenticate into the application via Azure AD without issues.

6. (Optional) Advanced Configuration

  • Group-based Access:

    • Configure access so that only users from specified Azure AD groups can use the application.

  • Conditional Access Policies:

    • Set conditions such as requiring Multi-Factor Authentication (MFA) before access is granted.

🔒 Summary

This setup ensures that users can authenticate into external applications using their Azure AD credentials, providing:

  • Centralized user management

  • Enhanced security with features like MFA

  • Streamlined access via SAML 2.0

For further support, consult Microsoft's official documentation or your IT admin team.

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