Title

The Tanium application must set an inactive timeout for sessions. (Cat II impact)

Discussion

Leaving sessions open indefinitely is a major security risk. An attacker can easily use an already authenticated session to access the hosted application as the previously authenticated user. By closing sessions after a set period of inactivity, the web server can ensure sessions that are not closed when the user logs out of an application are eventually closed. Acceptable values are 5 minutes for high-value applications, 10 minutes for medium-value applications, and 20 minutes for low-value applications.

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 "Administration" at top center of the screen. 3. Under "Configuration", select "Platform Settings". 4. In the "Filter Items" box, enter "max_console_idle_seconds". If no results are returned, this is a finding. If results are returned for "max_console_idle_seconds" but the value is not "900" or less, this is a finding.

Fix Text

If the "max_console_idle_seconds" setting exists but is not "900" or less: 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 "Administration" on the top navigation banner. 3. Under "Configuration", select "Platform Settings". 4. In the "Filter Items" box, enter "max_console_idle_seconds". 5. Select the "max_console_idle_seconds" setting. 6. For "Value", enter "900" or less. 7. Click the "Save" button. If the "max_console_idle_seconds" setting does not exist: 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 "Administration" on the top navigation banner. 3. Under "Configuration", select "Platform Settings". 4. Click the "Create Setting" button at the top right. 5. Select "Server" box for "Setting Type". 6. In "Create Platform Setting" dialog box, enter "max_console_idle_seconds" for "Name". 7. Select "Numeric" for the "Value Type". 8. For the "Value", enter "900" or less. 9. Click "Save".

Additional Identifiers

Rule ID: SV-253873r997295_rule

Vulnerability ID: V-253873

Group Title: SRG-APP-000295

Expert Comments

CCIs tied to check.

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