Title

The Tanium documentation identifying recognized and trusted indicator of compromise (IOC) streams must be maintained. (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 IOCs that are imported from a vendor based on a subscription service. An IOC stream can be downloaded manually or on a 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. Review the documented list of IOC trusted stream sources. If the site uses an external source for IOCs and the IOC trusted stream source is not documented, this is a finding.

Fix Text

Prepare and maintain documentation identifying the Threat Response trusted stream sources.

Additional Identifiers

Rule ID: SV-253842r997266_rule

Vulnerability ID: V-253842

Group Title: SRG-APP-000039

Expert Comments

CCIs tied to check.

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