STIGQter: STIG Summary: Tanium 7.x Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 02 Jul 2025:

The application must employ a deny-all, permit-by-exception (allowlist) policy to allow the execution of authorized software programs.

DISA Rule

SV-253797r997236_rule

Vulnerability Number

V-253797

Group Title

SRG-APP-000386

Rule Version

TANS-00-001405

Severity

CAT II

CCI(s)

• CCI-001774 - Employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs on the system.

Weight

10

Fix Recommendation

If Enforce is not used to manage allowlisting, no fix is needed.

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 "Modules" on the top navigation banner.

3. Click "Enforce".

4. Expand the left menu.

5. From the Enforce menu, go to Policy Configurations.

6. Click "Action" and then "Create".

7. In the "General Information" section:

- Enter a Name and Description for the policy.
- Select AppLocker from the Policy Type options. Policy types can be filtered by operating system (All, Windows, Mac, Linux).

8. (Optional) If there is already a policy of this type, that policy can serve as the starting point for a new policy. Select the policy in the "Starting Point" pull-down menu.

If requirements for this policy are missing, that information is displayed in the "Configuration Status" section. Refer to Configure Endpoint Encryption settings for BitLocker requirements.

9. In the "Settings" section:

- Enter Support URL (optional).
- Import Rules from XML (optional).
- Select Rule Type (at least 1).

10. For each Rule Type:

- Choose: Blocking.
- Click "Create" under "Block" section.

11. Click "Create".

Check Contents

If Enforce is not used to manage allowlisting, this check is not applicable.

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 "Modules" on the top navigation banner.

3. Select the "Enforce" module.

4. Click the three dots next to the "Enforce" header.

5. Click "Enforcements".

6. Verify an enforcement exists for allowlisting by looking for "AppLocker" in the "Policy" column.

7. Click each enforcement for allowlisting Policy type and verify the enforcement is applied to all applicable machines.

If an AppLocker Policy is not applied to all applicable machines, this is a finding.

Vulnerability Number

V-253797

Documentable

False

Rule Version

TANS-00-001405

Severity Override Guidance

If Enforce is not used to manage allowlisting, this check is not applicable.

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 "Modules" on the top navigation banner.

3. Select the "Enforce" module.

4. Click the three dots next to the "Enforce" header.

5. Click "Enforcements".

6. Verify an enforcement exists for allowlisting by looking for "AppLocker" in the "Policy" column.

7. Click each enforcement for allowlisting Policy type and verify the enforcement is applied to all applicable machines.

If an AppLocker Policy is not applied to all applicable machines, this is a finding.

Check Content Reference

M

Target Key

5476