Tanium Threat Response must be configured to receive IOC streams only from trusted sources.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-254888	TANS-AP-000135	SV-254888r867564_rule		Medium

Description
Using trusted and recognized IOC sources may detect and prevent systems from becoming compromised. An IOC stream is a series or stream of intel that is imported from a vendor based on a subscription service or manually downloaded and placed in a folder. Threat Response can be configured to retrieve the IOC content on a regularly scheduled basis. The items in an IOC stream can be separately manipulated after they are imported.

Description

Using trusted and recognized IOC sources may detect and prevent systems from becoming compromised. An IOC stream is a series or stream of intel that is imported from a vendor based on a subscription service or manually downloaded and placed in a folder. Threat Response can be configured to retrieve the IOC content on a regularly scheduled basis. The items in an IOC stream can be separately manipulated after they are imported.

STIG	Date
Tanium 7.x Application on TanOS Security Technical Implementation Guide	2022-10-31

Details

Check Text ( C-58501r867562_chk )
Consult with the Tanium System Administrator to determine if the Threat Response module is being used, if not this 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 multi-factor authentication. 2. Click "Modules" on the top navigation banner. 3. Click "Threat Response". 4. Expand the left menu. 5. Click "Intel". 6. Select "Sources". 7. Verify all configured Threat Response Streams are configured to a documented trusted source. If Threat Response is configured to a stream that has not been documented as trusted, this is a finding.

Check Text ( C-58501r867562_chk )

Consult with the Tanium System Administrator to determine if the Threat Response module is being used, if not this 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 multi-factor authentication.

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

3. Click "Threat Response".

4. Expand the left menu.

5. Click "Intel".

6. Select "Sources".

7. Verify all configured Threat Response Streams are configured to a documented trusted source.

If Threat Response is configured to a stream that has not been documented as trusted, this is a finding.

Fix Text (F-58445r867563_fix)
Consult the documentation on trusted intel subscription feeds. 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 multi-factor authentication. 2. Click "Modules" on the top navigation banner. 3. Click "Threat Response". 4. Expand the left menu. 5. Click "Intel". 6. Select "Sources". 7. Click "New Source". 8. Select the specified Source from the list. 9. Fill out the specified information based on the documented trusted intel feeds. 10. Select "Create".

Fix Text (F-58445r867563_fix)

Consult the documentation on trusted intel subscription feeds.

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 multi-factor authentication.

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

3. Click "Threat Response".

4. Expand the left menu.

5. Click "Intel".

6. Select "Sources".

7. Click "New Source".

8. Select the specified Source from the list.

9. Fill out the specified information based on the documented trusted intel feeds.

10. Select "Create".