Firewall rules must be configured on the Tanium Server for Client-to-Server communications.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-234089	TANS-SV-000017	SV-234089r612749_rule		Medium

Description
In addition to the client-to-server TCP communication that takes place over port 17472, Tanium Clients also communicate to other Tanium-managed computers over port 17472. The Tanium environment can perform hundreds or thousands of times faster than other security or systems management tools because the Tanium Clients communicate in secure, linearly-controlled peer-to-peer rings. Because clients dynamically communicate with other nearby agents based on proximity and latency, rings tend to form automatically to match a customer's topology--endpoints in California will form one ring while endpoints in Germany will form a separate ring. https://docs.tanium.com/platform_install/platform_install/reference_network_ports.html

Description

In addition to the client-to-server TCP communication that takes place over port 17472, Tanium Clients also communicate to other Tanium-managed computers over port 17472. The Tanium environment can perform hundreds or thousands of times faster than other security or systems management tools because the Tanium Clients communicate in secure, linearly-controlled peer-to-peer rings. Because clients dynamically communicate with other nearby agents based on proximity and latency, rings tend to form automatically to match a customer's topology--endpoints in California will form one ring while endpoints in Germany will form a separate ring. https://docs.tanium.com/platform_install/platform_install/reference_network_ports.html

STIG	Date
Tanium 7.3 Security Technical Implementation Guide	2021-12-20

Details

Check Text ( C-37274r610767_chk )
Consult with the Tanium System Administrator to verify which firewall is being used as a host-based firewall on the Tanium Server. Access the host-based firewall configuration on the Tanium Server. Validate rules exist, as required, to include: Between Tanium Clients or Zone Clients over TCP port 17472, bi-directionally. If a host-based firewall rule does not exist to allow TCP port 17472, bi-directionally, this is a finding. Consult with the network firewall administrator and validate rules exist for the following: Allow TCP traffic on port 17472 from any computer to be managed on a local area network to any other computer to be managed on the same local area network. If a network firewall rule does not exist to allow TCP port 17472 from any managed computer to any other managed computer on the same local area network, this is a finding.

Check Text ( C-37274r610767_chk )

Consult with the Tanium System Administrator to verify which firewall is being used as a host-based firewall on the Tanium Server.

Access the host-based firewall configuration on the Tanium Server.

Validate rules exist, as required, to include:

Between Tanium Clients or Zone Clients over TCP port 17472, bi-directionally.

If a host-based firewall rule does not exist to allow TCP port 17472, bi-directionally, this is a finding.

Consult with the network firewall administrator and validate rules exist for the following:

Allow TCP traffic on port 17472 from any computer to be managed on a local area network to any other computer to be managed on the same local area network.

If a network firewall rule does not exist to allow TCP port 17472 from any managed computer to any other managed computer on the same local area network, this is a finding.

Fix Text (F-37239r610768_fix)
Configure host-based and network firewall rules as required, to include Tanium Clients or Zone Clients over TCP port 17472, bi-directionally. Allow TCP traffic on port 17472 from any computer to be managed on a local area network to any other computer to be managed on the same local area network.