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Duo Single Sign-On for Rapid7

Last Updated: June 15th, 2023

Add two-factor authentication and flexible security policies to Rapid7 SAML 2.0 logins with Duo Single-Sign On. Our cloud-hosted SSO identity provider offers inline user enrollment, self-service device management, and support for a variety of authentication methods — such as passkeys and security keys, Duo Push, or Verified Duo Push — in the Universal Prompt.


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 Rapid7 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 Rapid7.

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 Rapid7. Duo checks the user, device, and network against an application's policy before allowing access to the application.

Configure Single Sign-On

Before configuring Rapid7 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 Rapid7 application in Duo.

Create the Rapid7 Application in Duo

  1. Log on to the Duo Admin Panel and navigate to Applications.

  2. Click Protect an Application and locate the entry for Rapid7 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 Rapid7. See Protecting Applications for more information about protecting applications in Duo and additional application options. You'll need the information on the Rapid7 page under Downloads later.

  3. Rapid7 uses the Mail attribute, First name attribute, and Last name attribute when authenticating. We've mapped the bridge attributes to Duo Single Sign-On supported authentication source attributes as follows:

    Bridge Attribute Active Directory SAML IdP
    <Email Address> mail Email
    <First Name> givenName FirstName
    <Last Name> sn LastName

    If you are using non-standard attributes for your authentication source, check the Custom attributes box and enter the name of the attributes 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
 Duo Push in Universal Prompt  Duo Push in Traditional Prompt

We've already updated the Duo Rapid7 application hosted in Duo's service to support the Universal Prompt, so there's no action required on your part to update the application itself. If you created your Rapid7 application before March 2024, you can activate the Universal Prompt experience for users from the Duo Admin Panel. Rapid7 applications created after March 2024 have the Universal Prompt activated by default.

If you created your Rapid7 application before March 2024, it's a good idea to read the Universal Prompt Update Guide for more information, about the update process and the new login experience for users, before you activate the Universal Prompt for your application.

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.

The "Universal Prompt" area of the application details page shows that this application is "Ready to activate", 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" here and on the Universal Prompt Update Progress report.

Universal Prompt Info - Universal Prompt Activation Complete

Should you ever want to roll back to the traditional prompt, you can return to this setting and change it back to Show traditional prompt. However, this will still deliver the Duo prompt via redirect, not in an iframe. Keep in mind that support for the traditional Duo prompt ended for the majority of applications in March 2024.

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 Rapid7 for SSO

  1. Log into your Rapid7 account as an administrative user.

  2. In the left menu sidebar, click the Settings icon and then click Authentication Settings.

  3. Click the SSO Settings tab.

  4. In the "Select your Identity Provider (IdP)" section, click the drop-down menu and select Duo.

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

  6. Return to your Rapid7 account page. In the "Add your IdP Certificate" section, click Browse and open the certificate file you downloaded earlier.

  7. In the "Copy the Following Data Into your External IdP" section, copy the Assertion Consumer Service (ACS URL) and paste it into the Duo Admin Panel Assertion Consumer Service (ACS URL) field.

  8. Return to your Rapid7 account page. Copy the Entity ID and paste it into the Duo Admin Panel Entity ID field.

  9. Return to your Rapid7 account page. Copy the Default Relay State and paste it into the Duo Admin Panel Default Relay State field.

    Duo Rapid7 Service Provider URLs
  10. Return to your Rapid7 account page and scroll down to the "Provide the Required Fields From your IdP" section.

  11. Return to the Duo Admin Panel. Under "Metadata", copy the Entity ID and paste it into the Rapid7 Entity ID field.

  12. Return to the Duo Admin Panel. Copy the Single Sign-On URL and paste it into the Rapid7 Single Sign-On URL field.

    Duo Rapid7 Metadata URLs
  13. In your Rapid7 account page, scroll to the bottom of the page and click Submit and turn on SSO.

Group Mapping

You have the option to map Duo groups to different roles in Rapid7. To map Duo groups, do the following.

  1. Log into your Rapid7 account as an administrative user.

  2. In the left menu sidebar, click the User Management icon and then click the User Groups tab.

  3. In the upper right corner of the page, click Create User Group.

  4. Type your desired group name into the Group name field.

  5. Under "Group Configuration", select the Products, Roles, Users, and Data Access tabs to configure your group.

  6. Click Save Group.

  7. Return to the Duo Admin Panel. Type the name you used in the Rapid7 Group name field into the Duo Admin Panel Rapid7 Group Name field.

  8. Select the applicable Duo group from the Duo groups drop-down menu.

    Duo Rapid7 Group Mapping
  9. Scroll the to bottom of the page and click Save.

Learn more about Rapid7 SSO at Rapid7 Support Resources.

Using SSO

You can log on to Rapid7 by navigating to your Rapid7 SSO page e.g., Click Sign in with SSO, enter your email, and then click Next 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.

Duo Single Sign-On Login

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

Duo Single Sign-On Password

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 Rapid7 to complete the login process.

Duo Universal Prompt

* Universal Prompt experience shown.

You can also log into Rapid7 using Duo Central, our cloud-hosted portal which allows users to access all of their applications in one spot. Link to Rapid7 in Duo Central by adding it as an application tile. Once the tile has been added, log into Duo Central and click the tile for IdP-initiated authentication to Rapid7.

Congratulations! Your Rapid7 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 Rapid7 and your other Duo Single Sign-On SAML applications, be sure to apply a shared "Remembered Devices" policy to your SAML applications.


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