The Tanium cryptographic signing capabilities must be enabled on the Tanium Server.

All of Tanium's signing capabilities must be enabled upon install. Tanium supports the cryptographic signing and verification before execution of all Sensors, Questions, Actions, Sensor Libraries, File Shards, etc. Enabling signing does away with the ability of an attacker to conduct man-in-the-middle (MitM) attacks for remote code execution and precludes the modification of the aforementioned data elements in transit. Additionally, Tanium supports object level signing for content ingested into the Tanium platform. This allows for the detection and rejection of changes to objects (sensors, actions, etc.) by even a privileged user within Tanium.

Tanium has built-in signing capabilities enabled by default when installed. Cryptographic signing and verification of all Sensors, Questions, Actions, Sensor Libraries, File Shards, etc., before execution will be enforced by Tanium.

Signing will prevent MitM remote code execution attacks and will protect data elements in transit. Tanium also supports object-level signing for content within the Tanium platform.

Satisfies: SRG-APP-000233; SRG-APP-000317

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 multifactor authentication.

2. Click "Administration" on the top navigation banner.

3. Under "Configuration", select "Settings".

4. Click the "Advanced Settings" tab.

5. In the "Filter Items" search box, type "sign_all_questions_flag".

6. Click "Enter".

If no results are returned, this is a finding.

If results are returned for "sign_all_questions_flag" but the value is not "1", this is a finding.

1. Using a web browser on a system that has connectivity to the Tanium application, access the Tanium application web UI and log on with multifactor authentication.

2. Click "Administration" on the top navigation banner.

3. Under "Configuration", select "Settings".

4. Click the "Advanced Settings" tab.

5. Click "Create Setting".

6. Select "Server" box for "Setting Type."

7. In "Create Platform Setting" dialog box, enter "sign_all_questions_flag" for "Name".

8. Select "Numeric" radio button for "Value Type".

9. Enter "1" for "Value".

10. Click "Save".