The DBN-6300 must terminate all network connections associated with a device management session at the end of the session, or the session must be terminated after 10 minutes of inactivity except to fulfill documented and validated mission requirements.

From DBN-6300 NDM Security Technical Implementation Guide

Associated with: CCI-001133

SV-91671r1_rule The DBN-6300 must terminate all network connections associated with a device management session at the end of the session, or the session must be terminated after 10 minutes of inactivity except to fulfill documented and validated mission requirements.

Vulnerability discussion

Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminating an idle session will also free up resources committed by the managed network element. Terminating network connections associated with communications sessions includes, for example, deallocating associated TCP/IP address/port pairs at the operating system level or deallocating networking assignments at the application level if multiple application sessions are using a single, operating system-level network connection. This does not mean that the device terminates all sessions or network access; it only ends the inactive session and releases the resources associated with that session.

Check content

Verify administrator accounts are configured with a 10-minute timeout setting. Navigate to Settings >> Users. Click on the wrench for an existing user. View each user defined on the device since there is no setting for a global value. If a timeout value of "600" is not set for each administrator account configured on the device, this is a finding.

Fix text

Configure administrator accounts with a timeout setting. Navigate to Settings >> Users. Click on the wrench for an existing user. In the "Edit User" popup box, enter a timeout value of "600". Click on "Commit".

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