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

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-254925	SRG-APP-000293	TANS-AP-000710	SV-254925r1067711_rule	2025-02-11	2

Description
When application accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the application processes themselves. Sending notification of account disabling events to the SA 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.

Description

When application accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the application processes themselves. Sending notification of account disabling events to the SA 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.

ℹ️ Check
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 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 there is no alert configured, this is a finding.

ℹ️ Check

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 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 there is no alert configured, this is a finding.

✔️ Fix
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 Server to a SIEM tool or email destination. 6. Work with email administrator to configure email destination. 7. Work with the SIEM administrator to configure an alert when accounts are modified.

✔️ Fix

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 Server to a SIEM tool or email destination. 6. Work with email administrator to configure email destination. 7. Work with the SIEM administrator to configure an alert when accounts are modified.