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Microsoft Office 365 - RSA Ready SecurID Access Implementation Guide

Certified: August 01, 2022

 

Solution Summary

Use Case

When integrated, Microsoft Office 365 end users must authenticate with RSA SecurID Access to sign in. Microsoft Office 365 can integrate using WS-Federation SSO Agent, SAML SSO Agent, or SAML relying party.

The available features and limitations are dependent on the specific Office 365 application and on whether it is integrated using SAML (SSO Agent or relying party) or WSFederation.

 

Application Integration Type
Operating System Office Version Name

WSFederation

SAML
Any Office 365 Web browser ss-key-auth-supported.png ss-key-access-policies-additional-auth-supported.png ss-key-auth-supported.png ss-key-access-policies-additional-auth-supported.png
Android N/A Outlook for Android ss-key-auth-supported.png ss-key-access-policies-additional-auth-supported.png ss-key-auth-supported.png ss-key-access-policies-additional-auth-supported.png
iOS N/A iOS Mail app (ActiveSync) ss-key-auth-supported.png ss-key-access-policies-additional-auth-not-supported.png ss-key-auth-not-supported.png
iOS N/A Outlook for iOS ss-key-auth-supported.png ss-key-access-policies-additional-auth-supported.png ss-key-auth-supported.png ss-key-access-policies-additional-auth-supported.png
Windows Office 2016 (ADAL enabled) Word, Access, Excel, PowerPoint, OneNote, Teams ss-key-auth-supported.png ss-key-access-policies-additional-auth-supported.png ss-key-auth-supported.png ss-key-access-policies-additional-auth-supported.png
Windows Office 2013 (ADAL disabled) Word, Access, Excel, PowerPoint, Project, SharePoint, Visio, Teams ss-key-auth-supported.png ss-key-client-config-required.png ss-key-access-policies-additional-auth-not-supported.png ss-key-auth-not-supported.png
Windows Office 2013 (ADAL enabled) Word, Access, Excel, PowerPoint, Project, SharePoint, Visio, Teams ss-key-auth-supported.png ss-key-client-config-required.png ss-key-access-policies-additional-auth-supported.png ss-key-auth-supported.png ss-key-client-config-required.png ss-key-access-policies-additional-auth-supported.png

 

ss-key-auth-supported.png Authentication supported
ss-key-client-config-required.png Client configuration required
ss-key-auth-not-supported.png Authentication not supported
ss-key-access-policies-additional-auth-supported.png Access policies and additional authentication supported
ss-key-access-policies-additional-auth-not-supported.png Access policies supported but additional authentication not supported

 

Integration Types

SSO Agent integrations use SAML 2.0 or WS-Fed technologies to direct users’ web browsers to Cloud Authentication Service for authentication. SSO Agents also provide single sign-on to other applications using the RSA Application Portal.

Relying party integrations use SAML 2.0 to direct users’ web browsers to Cloud Authentication Service for authentication.

 

Supported Features

This section shows all of the supported features by integration type and by RSA SecurID Access component. Use this information to determine which integration type and which RSA SecurID Access component your deployment will use. The next section in this guide contains the steps to integrate RSA SecurID Access with Microsoft Office 365 for each integration type.

 

Microsoft Office 365 Integration with RSA Cloud Authentication Service

Authentication Methods

Authentication API

RADIUS

Relying Party

SSO Agent

RSA SecurID - -
LDAP Password - -
Authenticate Approve - -
Authenticate Tokencode - -
Device Biometrics - -
SMS Tokencode - -
Voice Tokencode - -
FIDO Token n/a n/a - -

 

Microsoft Office 365 Integration with RSA Authentication Manager

Authentication Methods

Authentication API

RADIUS Authentication Agent
RSA SecurID - - -
On-Demand Authentication - - -
Risk-Based Authentication n/a - -

 

Supported
- Not supported
n/t Not yet tested or documented, but may be possible
n/a Not applicable

​Configuration Summary

The following links provide instructions on how to integrate Microsoft Office 365 with RSA SecurID Access.

This document is not intended to suggest optimum installations or configurations. It assumes that the reader has both working knowledge of all products involved, and the ability to perform the tasks outlined in this section. Administrators should have access to the product documentation for all products in order to install the required components. All RSA SecurID Access components must be installed and working prior to the integration.

 

Integration Prerequisites

The following links provide information on Office 365 prerequisites to integrate with RSA SecurID Access. Some or all of these prerequisites may already be met if your organization is already using Office 365.

 

 

Integration Configuration

 

 

Known Issues

WS-Fedederation SSO Agent

 

Allow or block clients that do not support modern authentication

Issue: Clients, such as Microsoft Office desktop applications that do not support modern authentication will fail authentication if using a policy that requires additional authentication.

Resolution: Configure and apply an access policy that allows or denies clients that does not support modern authentication and require additional authentication for clients that do.

The following clients will have MSOIDCRL in User Agent string:

  • Word
  • Excel
  • PowerPoint
  • Skype

The following clients will have null in User Agent string:

  • Outlook
  • Active Sync clients

This example policy allows access for all clients that do not support modern authentication, and requires additional authentication with low assurance level for clients that do.

body-ki-1_624x303.png

 

Office 2013 rich clients do not prompt for credentials

Issue: A domain-joined user using a rich client will initially login, but if the user signs out of the rich client, they won’t get prompt to sign-in.

Resolution: Add a new DWORD value to the registry NoDomainUser and set the value to 1.

For full details, refer to the following link.

Office applications periodically prompt for credentials to SharePoint Online, OneDrive, and Lync Online

 

Sign-in error when identity routers are behind a load balancer

Issue: Error when accessing Office 365 applications:

Sorry but we're having trouble signing you in.

AADSTS20012: An error occurred when we tried to process a WS-Federation message. The message was invalid.

Cause: When multiple identity routers are configured behind a load balancer, internal identity router traffic can get sent to the load balancer and then on to a different identity router. This loss of session persistence can cause authentication failure.

Resolution: Create static DNS entries to map the load balancer hostname to each identity router proxy IP address:

For each identity router:

    1. Edit and go to the Settings tab.
    2. Create a static DNS entry specifying the identity router's proxy interface IP address and the load balancer's DNS hostname.

Reference Step 13 of Add an Identity Router Using the Cloud Administration Console.

  1. Publish the changes.

 

SAML SSO Agent

No known issues

SAML Relying Party

No known issues.

 

 

Next Topic:Integration Prerequisites
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‎2022-08-04 04:01 AM
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