XenDesktop License Server must protect the authenticity of communications sessions.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-81417	CXEN-LS-000480	SV-96131r1_rule		Medium

Description
Authenticity protection provides protection against man-in-the-middle attacks/session hijacking and the insertion of false information into sessions. Application communication sessions are protected using transport encryption protocols, such as SSL or TLS. SSL/TLS provide web applications with a way to authenticate user sessions and encrypt application traffic. Session authentication can be single (one-way) or mutual (two-way) in nature. Single authentication authenticates the server for the client, whereas mutual authentication provides a means for both the client and the server to authenticate each other. This requirement applies to applications that use communications sessions. This includes but is not limited to web-based applications and Service-Oriented Architectures (SOA). This requirement addresses communications protection at the application session, versus the network packet, and establishes grounds for confidence at both ends of communications sessions in ongoing identities of other parties and in the validity of information transmitted. Depending on the required degree of confidentiality and integrity, web services/SOA will require the use of SSL/TLS mutual authentication (two-way/bidirectional).

Description

Authenticity protection provides protection against man-in-the-middle attacks/session hijacking and the insertion of false information into sessions. Application communication sessions are protected using transport encryption protocols, such as SSL or TLS. SSL/TLS provide web applications with a way to authenticate user sessions and encrypt application traffic. Session authentication can be single (one-way) or mutual (two-way) in nature. Single authentication authenticates the server for the client, whereas mutual authentication provides a means for both the client and the server to authenticate each other. This requirement applies to applications that use communications sessions. This includes but is not limited to web-based applications and Service-Oriented Architectures (SOA). This requirement addresses communications protection at the application session, versus the network packet, and establishes grounds for confidence at both ends of communications sessions in ongoing identities of other parties and in the validity of information transmitted. Depending on the required degree of confidentiality and integrity, web services/SOA will require the use of SSL/TLS mutual authentication (two-way/bidirectional).

STIG	Date
Citrix XenDesktop 7.x License Server Security Technical Implementation Guide	2019-03-20

Details

Check Text ( C-81157r1_chk )
Look in \\Citrix\Licensing\LS\conf\ folder of the License Server installation directory for cert file/cert key file. Open the License Management Console, click "Administration", and select the "Server Configuration" tab. Click the "Secure Web Server Configuration" bar and verify "Select Enable HTTPS (Default 443)" is selected. If "Select Enable HTTPS (Default 443)" is not selected, this is a finding. NOTE: You may be prompted to log in after "Administration".

Check Text ( C-81157r1_chk )

Look in \\Citrix\Licensing\LS\conf\ folder of the License Server installation directory for cert file/cert key file.

Open the License Management Console, click "Administration", and select the "Server Configuration" tab.

Click the "Secure Web Server Configuration" bar and verify "Select Enable HTTPS (Default 443)" is selected.

If "Select Enable HTTPS (Default 443)" is not selected, this is a finding.

NOTE: You may be prompted to log in after "Administration".

Fix Text (F-88233r1_fix)
1. Copy a valid server certificate file and server certificate key file into the \\Citrix\Licensing\LS\conf\ folder of the License Server installation directory. 2. Click "Administration" and select the "Server Configuration" tab. 3. Click the "Secure Web Server Configuration" bar. 4. Select "Enable HTTPS (Default 443)". 5. Enter a port for the HTTPS communication. 6. Enter the location of the server certificate file and the server certificate key file. 7. Stop and restart the Citrix Licensing service from the services control panel of the machine running the license server.

Fix Text (F-88233r1_fix)

1. Copy a valid server certificate file and server certificate key file into the \\Citrix\Licensing\LS\conf\ folder of the License Server installation directory.
2. Click "Administration" and select the "Server Configuration" tab.
3. Click the "Secure Web Server Configuration" bar.
4. Select "Enable HTTPS (Default 443)".
5. Enter a port for the HTTPS communication.
6. Enter the location of the server certificate file and the server certificate key file.
7. Stop and restart the Citrix Licensing service from the services control panel of the machine running the license server.