Check: TANS-CL-000003
Tanium 7.3 STIG:
TANS-CL-000003
(in versions v2 r2 through v1 r1)
Title
The Tanium cryptographic signing capabilities must be enabled on the Tanium Clients to safeguard the authenticity of communications sessions when answering requests from the Tanium Server. (Cat II impact)
Discussion
All of Tanium's signing capabilities should 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 the purposes of 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 element in transit. Tanium also supports object level signing for content within the Tanium platform. Satisfies: SRG-APP-000131, SRG-APP-000219
Check Content
Using a web browser on a system that has connectivity to the Tanium Application, access the Tanium Application web user interface (UI). Log on with CAC. Click on the navigation button (hamburger menu) on the top left of the console. Click on "Administration". Select the "Global Settings" tab. In the "Show Settings Containing:" search box type "AllQuestionsRequireSignatureFlag". Click "Enter". If no results are returned, this is a finding. If results are returned for "AllQuestionsRequireSignatureFlag" but the value is not "1", this is a finding.
Fix Text
Using a web browser on a system that has connectivity to the Tanium Application, access the Tanium Application web user interface (UI). Log on with CAC. Click on the navigation button (hamburger menu) on the top left of the console. Click on "Administration". Select the "Global Settings" tab. Click on "New Setting". In "New System Setting" dialog box, enter "AllQuestionsRequireSignatureFlag" for "Setting Name:". Enter "1" for "Setting Value:". Select "Client" from "Affects" drop-down list. Select "Numeric" from "Value Type" drop-down list. Click "Save".
Additional Identifiers
Rule ID: SV-234037r612749_rule
Vulnerability ID: V-234037
Group Title: SRG-APP-000131
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-001184 |
The information system protects the authenticity of communications sessions. |
| CCI-001749 |
The information system prevents the installation of organization-defined software components without verification the software component has been digitally signed using a certificate that is recognized and approved by the organization. |
| CCI-001967 |
The information system authenticates organization-defined devices and/or types of devices before establishing a local, remote, and/or network connection using bidirectional authentication that is cryptographically based. |