In the event of a logging failure, caused by loss of communications with the central logging server, the DBN-6300 must queue audit records locally until communication is restored or until the audit records are retrieved manually or using automated synchronization tools.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-64999	DBNW-IP-000009	SV-79489r1_rule		Medium

Description
It is critical that when the IDPS is at risk of failing to process audit logs as required, it take action to mitigate the failure. Audit processing failures include software/hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded. Responses to audit failure depend upon the nature of the failure. The DBN-6300 performs a critical security function; therefore, its continued operation is imperative. Since availability of the DBN-6300 is an overriding concern, shutting down the system in the event of an audit failure should be avoided, except as a last resort. The SYSLOG protocol does not support automated synchronization; however, this functionality may be provided by Network Management Systems (NMSs), which are not within the scope of this STIG.

Description

It is critical that when the IDPS is at risk of failing to process audit logs as required, it take action to mitigate the failure. Audit processing failures include software/hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded. Responses to audit failure depend upon the nature of the failure. The DBN-6300 performs a critical security function; therefore, its continued operation is imperative. Since availability of the DBN-6300 is an overriding concern, shutting down the system in the event of an audit failure should be avoided, except as a last resort. The SYSLOG protocol does not support automated synchronization; however, this functionality may be provided by Network Management Systems (NMSs), which are not within the scope of this STIG.

STIG	Date
DBN-6300 IDPS Security Technical Implementation Guide	2017-09-15

Details

Check Text ( C-65657r2_chk )
Audit records are automatically backed up on a real-time basis via syslog when enabled. Verify the DBN-6300 is connected to the syslog server. Navigate to Settings >> Advanced >> Syslog. Verify that the syslog services are set to "on", the syslog server information is valid, and the syslog server has connected. Navigate to Settings >> Advanced >> Audit Log and verify that the Audit Syslog, "Use System Syslog" button is set to "Yes" and the Audit Configuration Categories are all checked for Audit Log, Syslog, and Audit Console. Following this verification, process a successful account action (of any kind). Confirm the presence of a syslog message on the syslog server containing the information for whatever successful account action was taken. If the DBN-6300 is not connected to the syslog server, or if the syslog server is connected but the message containing the information that a successful account action that was taken and had just occurred is not there, this is a finding.

Check Text ( C-65657r2_chk )

Audit records are automatically backed up on a real-time basis via syslog when enabled.

Verify the DBN-6300 is connected to the syslog server.

Navigate to Settings >> Advanced >> Syslog.

Verify that the syslog services are set to "on", the syslog server information is valid, and the syslog server has connected.

Navigate to Settings >> Advanced >> Audit Log and verify that the Audit Syslog, "Use System Syslog" button is set to "Yes" and the Audit Configuration Categories are all checked for Audit Log, Syslog, and Audit Console.

Following this verification, process a successful account action (of any kind). Confirm the presence of a syslog message on the syslog server containing the information for whatever successful account action was taken.

If the DBN-6300 is not connected to the syslog server, or if the syslog server is connected but the message containing the information that a successful account action that was taken and had just occurred is not there, this is a finding.

Fix Text (F-70939r2_fix)
Audit records are automatically backed up on a real-time basis via syslog when enabled. Verify the DBN-6300 is connected to the syslog server. Navigate to Settings >> Advanced >> Syslog. Verify that the syslog server information is valid and that the syslog server has connected. Navigate to Settings >> Advanced >> Audit Log and verify that the Audit Syslog, "Use System Syslog" button is set to "Yes" and the Audit Configuration Categories are all checked for Audit Log, Syslog, and Audit Console. When a network failure occurs, the audit records can be retrieved manually by downloading the records via the System State Report. This is done by navigating to Support - System State Report, "New Report" (file name is optional). A report will be generated. Using the download arrow on the right of the screen, download and examine the System State Report for the audit record showing the latest audit log.

Fix Text (F-70939r2_fix)

Audit records are automatically backed up on a real-time basis via syslog when enabled.

Verify the DBN-6300 is connected to the syslog server.

Navigate to Settings >> Advanced >> Syslog.

Verify that the syslog server information is valid and that the syslog server has connected.

Navigate to Settings >> Advanced >> Audit Log and verify that the Audit Syslog, "Use System Syslog" button is set to "Yes" and the Audit Configuration Categories are all checked for Audit Log, Syslog, and Audit Console.

When a network failure occurs, the audit records can be retrieved manually by downloading the records via the System State Report. This is done by navigating to Support - System State Report, "New Report" (file name is optional). A report will be generated. Using the download arrow on the right of the screen, download and examine the System State Report for the audit record showing the latest audit log.