The Tanium Server certificate must be signed by a DOD Certificate Authority.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-254947	TANS-AP-001130	SV-254947r867741_rule		Medium

Description
The Tanium Server has the option to use a "self-signed" certificate or a Trusted Certificate Authority signed certificate for SSL connections. During evaluations of Tanium in Lab settings, customers often conclude that a "self-signed" certificate is an acceptable risk. However, in production environments it is critical that a SSL certificate signed by a Trusted Certificate Authority be used on the Tanium Server in lieu of an untrusted and insecure "self-signed" certificate.

Description

The Tanium Server has the option to use a "self-signed" certificate or a Trusted Certificate Authority signed certificate for SSL connections. During evaluations of Tanium in Lab settings, customers often conclude that a "self-signed" certificate is an acceptable risk. However, in production environments it is critical that a SSL certificate signed by a Trusted Certificate Authority be used on the Tanium Server in lieu of an untrusted and insecure "self-signed" certificate.

STIG	Date
Tanium 7.x Application on TanOS Security Technical Implementation Guide	2022-10-31

Details

Check Text ( C-58560r867739_chk )
1. Using a web browser on a system that has connectivity to the Tanium Application, access the Tanium Application web user interface (UI) and log on with multi-factor authentication. 2. When connected, review the Certificate for the Tanium Server. 3. In the web browser, view the presented Certificate and verify that the Certificate shows as issued by a DOD Root CA. Also verify that the Certification path's top-level is a DOD Root CA. 4. If the certificate authority is not DOD Root CA, this is a finding.

Check Text ( C-58560r867739_chk )

1. Using a web browser on a system that has connectivity to the Tanium Application, access the Tanium Application web user interface (UI) and log on with multi-factor authentication.

2. When connected, review the Certificate for the Tanium Server.

3. In the web browser, view the presented Certificate and verify that the Certificate shows as issued by a DOD Root CA. Also verify that the Certification path's top-level is a DOD Root CA.

4. If the certificate authority is not DOD Root CA, this is a finding.

Fix Text (F-58504r867740_fix)
Request or regenerate the certificate from a DOD Root Certificate Authority.