Title

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

Discussion

When application accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the application processes. Sending notification of account disabling 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 disabled. 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. Click "Create Connection" in the "Connections" section. 5. Configure sources to send audit logs from the Tanium SQL Server to a SIEM tool or email destination. 6. Work with the email administrator to configure an email destination. 7. Work with the SIEM administrator to configure an alert when accounts are modified.

Additional Identifiers

Rule ID: SV-253829r1015845_rule

Vulnerability ID: V-253829

Group Title: SRG-APP-000293

Expert Comments

CCIs tied to check.

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