Duo Single Sign-On for One Identity Safeguard for Privileged Sessions

Overview

As business applications move from on-premises to cloud hosted solutions, users experience password fatigue due to disparate logons for different applications. Single sign-on (SSO) technologies seek to unify identities across systems and reduce the number of different credentials a user has to remember or input to gain access to resources.

While SSO is convenient for users, it presents new security challenges. If a user's primary password is compromised, attackers may be able to gain access to multiple resources. In addition, as sensitive information makes its way to cloud-hosted services it is even more important to secure access by implementing two-factor authentication and zero-trust policies.

About Duo Single Sign-On

Duo Single Sign-On is our cloud-hosted SSO product which layers Duo's strong authentication and flexible policy engine on top of One Identity Safeguard for Privileged Sessions logins. Duo Single Sign-On acts as an identity provider (IdP), authenticating your users using existing on-premises Active Directory (AD) or another SSO IdP. Duo SSO prompts users for two-factor authentication and performs endpoint assessment and verification before permitting access to One Identity Safeguard for Privileged Sessions.

Duo Single Sign-On is available in Duo Premier, Duo Advantage, and Duo Essentials plans, which also include the ability to define policies that enforce unique controls for each individual SSO application. For example, you can require that Salesforce users complete two-factor authentication at every login, but only once every seven days when accessing One Identity Safeguard for Privileged Sessions. Duo checks the user, device, and network against an application's policy before allowing access to the application.

Configure Single Sign-On

Before configuring One Identity Safeguard for Privileged Sessions with Duo SSO using Security Assertion Markup Language (SAML) 2.0 authentication you'll first need to enable Duo Single Sign-On for your Duo account and configure a working authentication source.

Once you have your SSO authentication source working, continue to the next step of creating the One Identity Safeguard for Privileged Sessions application in Duo.

Create the One Identity Safeguard for Privileged Sessions Application in Duo

1. Log on to the Duo Admin Panel and navigate to Applications → Protect an Application.

2. Locate the entry for One Identity Safeguard for Privileged Sessions with a protection type of "2FA with SSO hosted by Duo (Single Sign-On)" in the applications list. Click Protect to the far-right to start configuring One Identity Safeguard for Privileged Sessions. See Protecting Applications for more information about protecting applications with Duo and additional application options. You'll need the information on the One Identity Safeguard for Privileged Sessions page under Downloads later.

3. One Identity Safeguard for Privileged Sessions uses the Mail attribute when authenticating. We've mapped the <Email Address> bridge attribute to Duo Single Sign-On supported authentication source attributes as follows:

   Bridge Attribute	Active Directory	SAML IdP
   <Email Address>	mail	Email

   If you are using a non-standard email attribute for your authentication source, check the Custom attributes box and enter the name of the attribute you wish to use instead.

4. You can adjust additional settings for your new SAML application at this time — like changing the application's name from the default value, enabling self-service, or assigning a group policy.

5. Keep the Duo Admin Panel tab open. You will come back to it later.

Duo Universal Prompt

The Duo Universal Prompt provides a simplified and accessible Duo login experience for web-based applications, offering a redesigned visual interface with security and usability enhancements.

Universal Prompt	Traditional Prompt

The Duo One Identity Safeguard for Privileged Sessions application supports the Universal Prompt by default, so there's no additional action required on your part to start using the newest authentication experience.

Activate Universal Prompt

Activation of the Universal Prompt is a per-application change. Activating it for one application does not change the login experience for your other Duo applications. Universal Prompt is already activated for new One Identity Safeguard for Privileged Sessions applications at creation.

The "Universal Prompt" area of the application details page shows that this application's status is "Activation complete", with these activation control options:

• Show traditional prompt: Your users experience Duo's traditional prompt via redirect when logging in to this application.
• Show new Universal Prompt: (Default) Your users experience the Universal Prompt via redirect when logging in to this application.

The application's Universal Prompt status shows "Activation complete" both here and on the Universal Prompt Update Progress report.

For the time being, you may change this setting to Show traditional prompt to use the legacy experience. Keep in mind that support for the traditional Duo prompt ended for the majority of applications in March 2024. This option will be removed in the future.

Universal Update Progress

Click the See Update Progress link to view the Universal Prompt Update Progress report. This report shows the update availability and migration progress for all your Duo applications. You can also activate the new prompt experience for multiple supported applications from the report page instead of visiting the individual details pages for each application.

Enable One Identity Safeguard for Privileged Sessions for SSO

Group Mapping

1. Log into your One Identity Safeguard for Privileged Sessions account as an administrator.

2. In the left menu sidebar, navigate to Users & Access Control → Appliance Access.

3. Scroll down to the bottom right corner of the page and click + to add a new group row.

4. Enter a unique name for your group into the empty field at the bottom of the "Group" column. Make note of your group name. You will need it later.

5. Click the drop-down menu in the "Type" column and select read and write/perform.

6. Next to the drop-down menu, click Edit. The "Select object" pop-up window opens.

7. Click the checkboxes next to your desired permissions and then click Save.

8. In the bottom right corner of the page, click Commit.

9. After the group configuration is saved, the "Result" pop-up window opens. Click OK to close the pop-up window.

10. In the left menu sidebar, navigate to Users & Access Control → Local Users.

11. On the right side of the page, click + to add a new user row.

12. Enter the email address for your user into the empty field at the bottom of the "User" column.

    Note: The users that you add to One Identity Safeguard for Privileged Sessions should be already added to the group in the Duo Admin Panel that you want to map.

13. Repeat steps 11 and 12 for each additional user.

14. Click Commit.

15. After the user configuration is saved, the "Result" pop-up window opens. Click OK to close the pop-up window.

16. Return to the Duo Admin Panel. Under "Service Provider", type the name of the group you noted earlier into the One Identity Safeguard for Privileged Sessions groups field.

17. Click the Duo Groups drop-down menu and select the applicable Duo group(s).

    

Create a Login Method

1. In the left menu sidebar, navigate to Users & Access Control → Login Options.

2. Click + Create new login method and select SAML2. The "Create new SAML2 login method" window opens.

3. Enter a unique name for your login method into the Login method name field.

4. Under "Status", click the Enabled toggle switch.

5. Return to the Duo Admin Panel. Under "Downloads", click Download XML.

6. Return to the One Identity Safeguard for Privileged Sessions "Create new SAML2 login method" window. Under "Identity Provider", click Select file from computer and open the XML file you downloaded from the Duo Admin Panel earlier.

7. At the bottom of the "Create new SAML2 login method" window, click Save. The window closes.

8. Click the SSO Configuration drop-down menu and select SAML2 Service Provider settings. The "SAML2 Service provider settings" window opens.

9. Make note of your hostname in the Hostname field. You will need it later.

   Example: oneid.example.com

10. Click Cancel to close the "SAML2 Service provider settings" window.

11. Click the SSO Configuration drop-down menu and select SAML2 Service Provider details. The "SAML2 Service provider details" window opens.

12. Click Download SAML2 metadata.

13. Click Cancel to close the "SAML2 Service provider details" window.

14. In the upper right corner of the page, click Commit changes.

15. Return to the Duo Admin Panel. Under "Service Provider", click Choose File and open the XML file you downloaded from One Identity Safeguard for Privileged Sessions earlier.

16. In the Duo Admin Panel, scroll down to the bottom of the page and click Save.

Learn more about One Identity Safeguard for Privileged Sessions SSO at One Identity Support.

Using SSO

You can log on to One Identity Safeguard for Privileged Sessions by navigating to your One Identity Safeguard for Privileged Sessions SSO page, which is the hostname you noted earlier e.g., https://oneid.example.com. Click Login with (your name) to be redirected to Duo Single Sign-On to begin authentication.

Active Directory Login

With Active Directory as the Duo SSO authentication source, enter the primary username (email address) on the Duo SSO login page and click or tap Next.

Enter the AD primary password and click or tap Log in to continue.

Enable Duo Passwordless to log in to Duo SSO backed by Active Directory authentication without entering a password in the future.

SAML Login

With another SAML identity provider as the Duo SSO authentication source, Duo SSO immediately redirects the login attempt to that SAML IdP for primary authentication. Users do not see the Duo SSO primary login screen.

Duo Authentication

Successful verification of your primary credentials by Active Directory or a SAML IdP redirects back to Duo. Complete Duo two-factor authentication when prompted and then you'll return to One Identity Safeguard for Privileged Sessions to complete the login process.

* Universal Prompt experience shown.

One Identity Safeguard for Privileged Sessions supports SP-initiated authentication only, meaning that you must start your SSO login from that application's sign-in page. You won't be able to add One Identity Safeguard for Privileged Sessions as an application tile in Duo Central for IdP-initiated logins.

Congratulations! Your One Identity Safeguard for Privileged Sessions users now authenticate using Duo Single Sign-On.

See the full user login experience, including expired password reset (available for Active Directory authentication sources) in the Duo End User Guide for SSO.

Enable Remembered Devices

To minimize additional Duo two-factor prompts when switching between One Identity Safeguard for Privileged Sessions and your other Duo Single Sign-On SAML applications, be sure to apply a shared "Remembered Devices" policy to your SAML applications.

Troubleshooting

Need some help? Try searching our Knowledge Base articles or Community discussions. For further assistance, contact Support.