Title

Tanium Threat Response must be configured to receive IOC streams only from trusted sources. (Cat II impact)

Discussion

Using trusted and recognized IOC sources may detect compromise 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 manipulated separately after they are imported.

Check Content

Consult with the Tanium system administrator to determine if the Threat Response module is being used. If it is 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 multifactor 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

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 UI and log on with multifactor 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".

Additional Identifiers

Rule ID: SV-253843r997267_rule

Vulnerability ID: V-253843

Group Title: SRG-APP-000039

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.