Citrix Virtual Apps and Desktop 7.x StoreFront Security Technical Implementation Guide

Version/Release: V1R1
Published: 2021-02-01
Released: 2021-01-28
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This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: disa.stig_spt@mail.mil.

The Citrix Storefront server must implement DoD-approved encryption to protect the confidentiality of remote access sessions.

AC-17 - High - CCI-000068 - V-234251 - SV-234251r628797_rule

RMF Control

AC-17

Severity

High

CCI

CCI-000068

Version

CVAD-SF-000030

Vuln IDs

V-234251

Rule IDs

SV-234251r628797_rule

Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Encryption provides a means to secure the remote connection to prevent unauthorized access to the data traversing the remote access connection thereby providing a degree of confidentiality. The encryption strength of mechanism is selected based on the security categorization of the information.

Checks: C-37436r612113_chk

A DoD approved VPN, or gateway/proxy, must be leveraged to access StoreFront from a remote network. This VPN, or gateway, must handle user authentication and tunneling of StoreFront traffic. The VPN, or gateway, must meet the DoD encryption requirements, such as FIPS 140-2, for the environment. If no VPN, or gateway/proxy, is used for remote access to StoreFront, this is a finding. If the VPN, or gateway/proxy, does not authenticate the remote user before providing access to StoreFront, this is a finding. If the VPN, or gateway/proxy, fails to meet the DoD encryption requirements for the environment, this is a finding.

Fix: F-37401r612114_fix

Implement a DoD approved VPN, or gateway/proxy, that will authenticate user access and tunnel/proxy traffic to StoreFront. Ensure the VPN, or gateway/proxy, is configured to authenticate the user before accessing the environment, and meets the DoD encryption requirements, such as FIPS 140-2, for the environment.

Citrix StoreFront server must accept Personal Identity Verification (PIV) credentials.

AC-3 - Medium - CCI-000213 - V-234252 - SV-234252r628797_rule

RMF Control

AC-3

Severity

Medium

CCI

CCI-000213

Version

CVAD-SF-000855

Vuln IDs

V-234252

Rule IDs

SV-234252r628797_rule

The use of PIV credentials facilitates standardization and reduces the risk of unauthorized access. DoD has mandated the use of the Common Access Card (CAC) to support identity management and personal authentication for systems covered under HSPD 12, as well as a primary component of layered protection for national security systems. Satisfies: SRG-APP-000391, SRG-APP-000033, SRG-APP-000392, SRG-APP-000439, SRG-APP-000440, SRG-APP-000442

Checks: C-37437r612116_chk

Open the Citrix StoreFront management console and select the "Store" node in the left pane. For each Store listed, select the store and perform the following: 1) From the Actions menu item, click "Manage Authentication Methods". 2) Ensure only "Smart card" is selected. If using remote access "Pass-through from NetScaler Gateway" may also be selected. If the "Smart Card" method is not selected, or if other methods are selected, this is a finding. If "Pass-through from NetScaler Gateway" is selected, this is not a finding.

Fix: F-37402r612117_fix

Open the Citrix StoreFront management console and select the "Store" node in the left pane. For each Store listed, select the store and perform the following: 1) From the Actions menu item, click "Manage Authentication Methods". 2) Check "Smart card" and uncheck any other authentication methods. If using remote access, select "Pass-through from NetScaler Gateway".