Title

Tanium must notify system administrators and the information system security officer (ISSO) for account removal actions. (Cat II impact)

Discussion

When application accounts are removed, user accessibility is affected. Accounts are utilized for identifying users or for identifying the application processes. Sending notification of account removal events to the system administrator and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that application accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements.

Check Content

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 "Connect". 4. Review the configured connections. If no sources exist to send audit logs from the Tanium SQL Server to a security information and event management (SIEM) tool or email destination, this is a finding. Work with the SIEM administrator to determine if an alert is configured when accounts are deleted. If no alert is configured, this is a finding.

Fix Text

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 "Connect". 4. Configure sources to send audit logs from the Tanium SQL Server to a SIEM tool or email destination. 5. Work with the email administrator to configure an email destination. 6. Work with the SIEM administrator to configure an alert when accounts are deleted.

Additional Identifiers

Rule ID: SV-253830r1015846_rule

Vulnerability ID: V-253830

Group Title: SRG-APP-000294

Expert Comments

CCIs tied to check.

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