Tanium must notify system administrators and the information system security officer (ISSO) when accounts are modified.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-253826	TANS-CN-000020	SV-253826r842506_rule		Medium

Description
When application accounts are modified, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the application processes. Sending notification of account modification 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.

Description

When application accounts are modified, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the application processes. Sending notification of account modification 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.

STIG	Date
Tanium 7.x Security Technical Implementation Guide	2022-08-24

Details

Check Text ( C-57278r842504_chk )
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 Database 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 modified. If no alert is configured, this is a finding.

Check Text ( C-57278r842504_chk )

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 Database 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 modified.

If no alert is configured, this is a finding.

Fix Text (F-57229r842505_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 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.

Fix Text (F-57229r842505_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 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.