Title

Firewall rules must be configured on the Tanium Server for Server-to-Module Server communications. (Cat II impact)

Discussion

The Tanium Module Server is used to extend the functionality of Tanium through the use of various workbenches. The Tanium Module Server requires communication with the Tanium Server on port 17477. Without a proper connection from the Tanium Server to the Tanium Module Server, access to the system capabilities could be denied. For more information, refer to https://docs.tanium.com/platform_install/platform_install/reference_network_ports.html.

Check Content

Consult with the Tanium system administrator to verify which firewall is being used as a host-based firewall on the Tanium Server. 1. Access the Tanium Server. 2. Log on to the server with an account that has administrative privileges. 3. Access the host-based firewall configuration on the Tanium Server. 4. Validate a rule exists for the following: Port Needed: Tanium Server to Tanium Module Server over TCP port 17477. If a host-based firewall rule does not exist to allow TCP port 17477 from the Tanium Server to the Tanium Module Server, this is a finding. Consult with the network firewall administrator and validate rules exist for the following: Allow TCP traffic on port 17477 from the Tanium Server to the Tanium Module Server. If a network firewall rule does not exist to allow TCP traffic on port 17477 from the Tanium Server to the Tanium Module Server, this is a finding.

Fix Text

1. Configure host-based firewall rules on the Tanium Server to allow the following required traffic: Allow TCP traffic on port 17477 to the Tanium Module Server from the Tanium Server. 2. Configure the network firewall to allow the above traffic.

Additional Identifiers

Rule ID: SV-253857r997279_rule

Vulnerability ID: V-253857

Group Title: SRG-APP-000383

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.