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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-234106	TANS-SV-000036	SV-234106r612749_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 7.3 Security Technical Implementation Guide	2021-12-20

Details

Check Text ( C-37291r610818_chk )
Using a web browser on a system, which has connectivity to the Tanium Application, access the Tanium Application web user interface (UI). Log on with CAC. When connected, review the Certificate for the Tanium Server: In Internet Explorer, right-click on the page. Select "Properties". Click on the "Certificates" tab. On the "General" tab, validate the Certificate shows as issued by a DOD Root CA. On Certification "Path" tab, validate the path top-level is a DoD Root CA. If the certificate authority is not DoD Root CA, this is a finding.

Check Text ( C-37291r610818_chk )

Using a web browser on a system, which has connectivity to the Tanium Application, access the Tanium Application web user interface (UI).

Log on with CAC.

When connected, review the Certificate for the Tanium Server:

In Internet Explorer, right-click on the page.

Select "Properties".

Click on the "Certificates" tab.

On the "General" tab, validate the Certificate shows as issued by a DOD Root CA.

On Certification "Path" tab, validate the path top-level is a DoD Root CA.

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

Fix Text (F-37256r610819_fix)
Request or regenerate the certificate from a DoD Root Certificate Authority.