The Tanium Server must be configured to allow only signed content to be imported.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-253846	SRG-APP-000131	TANS-SV-000015	SV-253846r1067667_rule	2025-02-26	2

Description
Changes to any software components can have significant effects on the overall security of the application. Verifying software components have been digitally signed using a certificate that is recognized and approved by the organization ensures the software has not been tampered with and that it has been provided by a trusted vendor. Patches, service packs, or application components must be signed with a certificate recognized and approved by the organization. Verifying the authenticity of the software prior to installation validates the integrity of the patch or upgrade received from a vendor. This ensures the software has not been tampered with and that it has been provided by a trusted vendor. Self-signed certificates are disallowed by this requirement. The application should not have to verify the software again. This requirement does not mandate DOD certificates for this purpose; however, the certificate used to verify the software is from an approved certificate authority (CA).

Description

Changes to any software components can have significant effects on the overall security of the application. Verifying software components have been digitally signed using a certificate that is recognized and approved by the organization ensures the software has not been tampered with and that it has been provided by a trusted vendor. Patches, service packs, or application components must be signed with a certificate recognized and approved by the organization. Verifying the authenticity of the software prior to installation validates the integrity of the patch or upgrade received from a vendor. This ensures the software has not been tampered with and that it has been provided by a trusted vendor. Self-signed certificates are disallowed by this requirement. The application should not have to verify the software again. This requirement does not mandate DOD certificates for this purpose; however, the certificate used to verify the software is from an approved certificate authority (CA).

ℹ️ Check
Note: This requirement applies only to Tanium implementations in production. If implementation being evaluated is in development, this requirement is not applicable. 1. Access the Tanium Server through interactive logon. 2. Open Windows Explorer and browse to the installation drive of the Tanium Server (e.g., E:\Program Files\Tanium\Tanium Server). 3. Locate the "tanium.license" file and double-click it. 4. Select "Notepad' to open the "tanium.license" file. 5. Select "Edit" and then select "Find" from the menu in Notepad. 6. Type "allow_unsigned_import" in the search box and select "Find Next." If "allow_unsigned_import" is followed by ":true", this is a finding. If "allow_unsigned_import" is followed by ":false", this is not a finding.

ℹ️ Check

Note: This requirement applies only to Tanium implementations in production. If implementation being evaluated is in development, this requirement is not applicable. 1. Access the Tanium Server through interactive logon. 2. Open Windows Explorer and browse to the installation drive of the Tanium Server (e.g., E:\Program Files\Tanium\Tanium Server). 3. Locate the "tanium.license" file and double-click it. 4. Select "Notepad' to open the "tanium.license" file. 5. Select "Edit" and then select "Find" from the menu in Notepad. 6. Type "allow_unsigned_import" in the search box and select "Find Next." If "allow_unsigned_import" is followed by ":true", this is a finding. If "allow_unsigned_import" is followed by ":false", this is not a finding.

✔️ Fix
Contact Tanium for a corrected license file. 1. Double-click the new "tanium.license" file and select Notepad to open the file. 2. Select "Edit" and then select "Find" from the menu in Notepad. 3. Type "allow_unsigned_import" in the search box and select "Find Next". 4. Verify "allow_unsigned_import" is followed by ":false". 5. Upload the "tanium.license" file to the Tanium Server. 6. Apply the corrected license file.

✔️ Fix

Contact Tanium for a corrected license file. 1. Double-click the new "tanium.license" file and select Notepad to open the file. 2. Select "Edit" and then select "Find" from the menu in Notepad. 3. Type "allow_unsigned_import" in the search box and select "Find Next". 4. Verify "allow_unsigned_import" is followed by ":false". 5. Upload the "tanium.license" file to the Tanium Server. 6. Apply the corrected license file.