Citrix ADC

Citrix ADC MPX FIPS certified appliances

The Citrix ADC MPX 8900 FIPS and MPX 15000-50G FIPS certified appliances have been tested by a third party laboratory for the security requirements of FIPS 140-2 Level-2 and is in the formal review process by NIST. More information about the FIPS 140-2 standard and validation program is available on the National Institute of Standards and Technology (NIST) and the Canadian Center for Cyber Security (CCCS) Cryptographic Module Validation Program (CMVP) website at https://csrc.nist.gov/projects/cryptographic-module-validation-program.

Prerequisites

  • FIPS license
  • Platform license

Ciphers supported on MPX 8900 FIPS and MPX 15000-50G FIPS certified appliances

All ciphers supported on a Citrix ADC MPX/SDX 14000 FIPS appliance, except the 3DES cipher, are supported on the MPX 8900 and MPX 15000-50G FIPS certified appliances. For the complete list of ciphers supported on these appliances, see Cipher support on Citrix ADC VPX FIPS and MPX FIPS certified appliances.

Limitation

RADIUS & TACACS authentication are not supported on the MPX FIPS certified appliance.

Configuration

  1. After the appliance starts, run the following command at the CLI:

    > show system fipsStatus
    
  2. You must get the following output.

    FipsStatus: "System is operating in FIPS mode"
    Done
    >
    
  3. In case you get the following output, check the license.

    FipsStatus: "System is operating in non FIPS mode"
    Done
    >
    

Perform the following steps to initialize the MPX appliance for the FIPS mode of operation.

  1. Enforce strong passphrase requirements.
  2. Replace the default TLS certificate.
  3. Disable HTTP access to the web GUI.
  4. Create the KEK master key.
  5. After initial configuration, disable local authentication and configure remote authentication using LDAP.

Enforce strong passphrase requirements using the GUI

Passphrases are used to derive keys using PBKDF2. As an admin, enable strong passphrase requirements using the GUI.

  1. Navigate to System > Settings.
  2. In the Settings section, click Change Global System Settings.
  3. In the Strong Password field, select Enable All.
  4. In the Min Password Length field, type “8.”
  5. Click OK.

Replace the default TLS certificate

By default, the MPX FIPS certified appliance includes a factory-provisioned RSA certificate for TLS connections (ns-server.cert and ns-server.key). This certificate is not intended for use in production deployments and must be replaced. Replace the default certificate with a new certificate after the initial installation.

To replace the default TLS certificate:

  1. At the command prompt, type the following command to set the host name of the appliance.

    set ns hostName <hostname>

  2. Create a Certificate Signing Request (CSR) using the GUI.
    1. Navigate to Traffic Management > SSL > SSL Files.
    2. In the CSR tab, click Create Certificate Signing Request (CSR).
    3. Enter the values and click Create. Note: The Common Name field contains the value of host name created in step 1.
  3. Submit the CSR file to a trusted certificate authority (CA). The CSR file is available in the /nsconfig/ssl directory.
  4. After receiving the certificate from the CA, copy the file to the /nsconfig/ssl directory.
  5. Navigate to Traffic Management > SSL > Certificates > Server Certificates.
  6. Select ns-server-certificate.
  7. Click Update.
  8. Click Update the certificate and key.
  9. In the Certificate File Name field, choose the certificate file that was received from the certificate authority (CA). Choose Local if the file is on your local computer. Otherwise, choose Appliance.
  10. In the Key File Name field, specify the default private key file name (ns-server.key).
  11. Select the No Domain Check option.
  12. Click OK.

Disable HTTP access to the web GUI

To protect traffic to the administrative interface and web GUI, the appliance must be configured to use HTTPS. After adding new certificates, use the CLI to disable HTTP access to the GUI management interface.

At the command prompt, type:

set ns ip <NSIP> -gui SECUREONLY

Create the KEK master key

The KEK master key is used to encrypt passphrases and other sensitive information. To prevent the default KEK from being used, use the CLI to create a KEK.

To create the KEK, at the command prompt, type:

create system kek

When prompted, enter a strong passphrase. The KEK is derived from this passphrase.

Disable local authentication and configure remote authentication using LDAP

The superuser account is a default account with root CLI access privileges that is required for initial configuration. During initial configuration, disable local system authentication to block access to all local accounts (including the superuser account), and to ensure that superuser privileges are not assigned to any user account.

To disable local system authentication and enable external system authentication using the CLI

At the command prompt, type:

set system parameter -localauth disabled

Follow the instructions in Configuring LDAP authentication to configure external system authentication to use LDAP.

Citrix ADC MPX FIPS certified appliances