Two-Factor Authentication (2FA/MFA) for Barracuda WAF
Application security is increasingly complex. Barracuda makes it simple. Barracuda Web Application Firewall is a part of Barracuda Cloud Application Protection, an integrated platform that brings a comprehensive set of interoperable solutions and capabilities together to ensure complete application security. You can enable two-factor authentication (2FA) for your Barracuda WAF managed active directory to increase security level. When you enable 2FA, your users enter their username and password (first factor) as usual, and as a second factor they have to enter an authentication code which will be shared virtually on their device or in the form of a hardware token. This 2FA/MFA solution adds an additional security measure to prevent unwanted users getting access to your Barracuda WAF.
Types of 2FA Authentication with RADIUS
The 2-factor authentication can be of two types depending on the Apps clients.
- Applications Clients that support RADIUS Challenge.
- Applications Clients that do not support RADIUS Challenge.
miniOrange 2FA authentication for Barracuda WAF Login
miniOrange accomplishes this by acting as a RADIUS server that accepts the username/password of the user entered as a RADIUS request and validates the user against the user store as Active Directory (AD). After the first level of authentication, miniOrange prompts the user with 2-factor authentication and either grants/revokes access based on the input by the user.
- Primary authentication initiates with the user submitting his Username and Password for Barracuda WAF.
- User request acts as an authentication request to RADIUS Server(miniOrange).
- miniOrange RADIUS server passes user credentials to validate against the credentials stored in AD (Active Directory) / Database.
- Once the user's first level of authentication gets validated AD sends the confirmation to RADIUS Server.
- Now miniOrange RADIUS Server asks for a 2-factor authentication challenge to the user.
- Here user submits the response/code which he receives on his hardware/phone.
- User response is checked at miniOrange’s RADIUS Server side.
- On successful 2nd factor authentication the user is granted access to login.
Connect with any External Directories
miniOrange provides user authentication from various external directories such as miniOrange Directory, Microsoft AD, Azure Active Directory/LDAP, AWS Cognito and many more.
Can't find your Directory? Contact us on firstname.lastname@example.org
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Enable Two-Factor Authentication (2FA)/MFA for Barracuda WAF Client to extend security level.
1. Add the Radius Client in miniOrange
2. Configure Barracuda WAF Client
- From the ACCESS CONTROL > Authentication Services page, select the RADIUS tab.
- Enter information about your RADIUS server:
- Realm Name – Enter the name of a realm. A realm is a RADIUS-compliant database of authorized user and group records. The realm can be located internally or externally on a RADIUS server.
- Server IP – Enter the IP address of the RADIUS server to authenticate users.
- Server Port – Enter the port number of the RADIUS server. Port 1812 is normally used for RADIUS.
- Shared Secret – Enter the secret key that is shared between the Barracuda Web Application Firewall and RADIUS server. Minimum value of the key is 6. As a best practice, use a unique account for this integration point and grant it the least level of privileges required, coordinating with the RADIUS administrator. This account requires READ privileges on the RADIUS server. For additional information, see Security for Integrating with Other Systems - Best Practices.
- Timeout – Enter the time in seconds for the Barracuda Web Application Firewall to wait for a response from the RADIUS server before retransmitting the packet.
- Retries – Enter the number of times you want the Barracuda Web Application Firewall to transmit a request packet to the RADIUS server before giving up.
- Click Add to add your RADIUS server configuration.
3. Configure Your User Directory (Optional)
miniOrange provides user authentication from various external sources, which can be Directories (like ADFS, Microsoft Active Directory, Azure AD, OpenLDAP, Google, AWS Cognito etc), Identity Providers (like Okta, Shibboleth, Ping, OneLogin, KeyCloak), Databases (like MySQL, Maria DB, PostgreSQL) and many more. You can configure your existing directory/user store or add users in miniOrange.
Configure your existing directories such as Microsoft Active Directory, Azure, OpenLDAP, etc.
- Click on External Directories >> Add Directory in the left menu of the dashboard.
- Select Directory type as AD/LDAP.
Enter LDAP Display Name and LDAP Identifier name.
Select Directory Type as Active Directory.
Enter the LDAP Server URL or IP Address against LDAP Server URL field.
Click on Test Connection button to verify if you have made a successful connection with your LDAP server.
- STORE LDAP CONFIGURATION IN MINIORANGE: Choose this option if you want to keep your configuration in miniOrange. If active directory is behind a firewall, you will need to open the firewall to allow incoming requests to your AD.
- STORE LDAP CONFIGURATION ON PREMISE: Choose this option if you want to keep your configuration in your premise and only allow access to AD inside premises. You will have to download and install miniOrange gateway in your premise.
In Active Directory, go to the properties of user containers/OU's and search for Distinguished Name attribute.
Enter the valid Bind account Password.
Click on Test Bind Account Credentials button to verify your LDAP Bind credentials for LDAP connection.
Search Base is the location in the directory where the search for a user begins. You will get this from the same place you got your Distinguished name.
Select a suitable Search filter from the drop down menu. To use custom Search Filter select "Write your Custom Filter" option and customize it accordingly.
You can also configure following options while setting up AD. Enable Activate LDAP in order to authenticate users from AD/LDAP. Click on the Save button to add user store.
Here's the list of the attributes and what it does when we enable it. You can enable/disable accordingly.
||All user authentications will be done with LDAP credentials if you Activate it
|Sync users in miniOrange
||Users will be created in miniOrange after authentication with LDAP
||If LDAP credentials fail then user will be authenticated through miniOrange
|Allow users to change password
||This allows your users to change their password. It updates the new credentials in your LDAP server
|Enable administrator login
||On enabling this, your miniOrange Administrator login authenticates using your LDAP server
|Show IdP to users
||If you enable this option, this IdP will be visible to users
|Send Configured Attributes
||If you enable this option, then only the attributes configured below will be sent in attributes at the time of login
Click on Save. After this, it will show you the list of User stores. Click on Test Connection to check whether you have enter valid details. For that, it will ask for username and password.
On Successful connection with LDAP Server, a success message is shown.
Click on Test Attribute Mapping.
Enter a valid Username. Then, click on Test. Mapped Attributes corresponding to the user are fetched.
After successful Attribute Mapping Configuration, go back to the ldap configuration and enable Activate LDAP in order to authenticate users from AD/LDAP.
Refer our guide to setup LDAPS on windows server.
User Import and Provisioning from AD
Note: Below steps are used to enable one time or manual sync. To enable sync on scheduled basis, you should use LDAP gateway module. Read more and download the LDAP gateway module.
- Go to Settings >> Product Settings in the Customer Admin Account.
- Enable the "Enable User Auto Registration" option and click Save.
- (Optional) To send a welcome email to all the end users that will be imported, enable the "Enable sending Welcome Emails after user registration" option and click Save.
- From the Left-Side menu of the dashboard select Provisioning.
- In Setup Provisioning tab select Active Directory in the Select Application Drop Down.
- Toggle the Import Users tab, click on Save button.
- On the same section, switch to Import Users section.
- Select Active Directory from the dropdown and click on the Import Users tab, to import all the users from Active Directory to miniOrange.
- You can view all the Users you have imports by selecting Users >> User List from Left Panel.
- All the imported users will be auto registered.
- These groups will be helpful in adding multiple 2FA policies on the applications.
4. Creating User Groups (Recommended)
- Select Groups >> Manage Groups from left panel.
- Click on the Create Group button on the top.
- Enter an appropriate Group Name and click on Create Group.
- In this guide we have created a Group by name VPN_Group.
- Assign various members to the group using the Assign User option associated with the group in the groups list.
- Select the Users that are required to be assigned to this group. Then Select Assign to Group in Select Action Dropdown and click on Apply button.
- These groups will be helpful in adding multiple 2FA policies on the applications.
5. Customize MFA options for End-users
- To enable 2FA/MFA for Barracuda WAF end-users, go to 2-Factor Authentication >> 2FA for end users.
- Select default Two-Factor authentication method for end users. You can select particular 2FA methods, which you want to show on the end users dashboard.
- Once Done with the settings, click on Save to configure your 2FA settings.
. MFA Enrollment Steps
6. Add Another Policy (Optional)
- Here, we will configure a policy for the User Group that we created in the Step 4 and associate it with the Barracuda WAF VPN Application.
- Click on Policies tab >> App Login Policy.
- Click on Add Policy tab.
- In Application section, select the RADIUS App that we configured earlier in Step 1.
- Select the required User Group in Group Name and enter the Policy name.
- In this guide, we will configure a Password Only policy for "VPN_Group", so that only the VPN_Group members can access VPN Services without a Second Factor.
- Once done with the policy settings, click on Save to Add Policy.
7. Test 2FA for Barracuda WAF Login
- Connect to the URL you normally use to log in to your Barracuda WAF.
- Enter your AD username & password and click on Connect.
- Now, you will be prompted for the 2-factor authentication code. Enter the code and click on Continue.
- After successful validation, you will be connected to Barracuda WAF.
- Login to miniOrange Admin Dashboard.
- Click on Reports >> Radius User Authentication Report.
- Enter Enduser Identifier and Date range.
- Click on Search.