The firewall must protect traffic log records from unauthorized access while in transit to the central audit server.

From Firewall Security Requirements Guide

Associated with: CCI-000162

SV-94159r1_rule The firewall must protect traffic log records from unauthorized access while in transit to the central audit server.

Vulnerability discussion

Auditing and logging are key components of any security architecture. Logging the actions of specific events provides a means to investigate an attack, recognize resource utilization or capacity thresholds, or identify an improperly configured firewall. Thus, it is imperative that the collected log data be secured and access be restricted to authorized personnel. Methods of protection may include encryption or logical separation.This does not apply to traffic logs generated on behalf of the device itself (management). Some devices store traffic logs separately from the system logs.

Check content

Verify that all communication with the central audit server is going out the interface that is connected to the management network and is protected by an encryption solution such as the management network's VPN. If the firewall does not use either encryption or logical separation to protect transmitted traffic log records while in transit to the central audit server, this is a finding.

Fix text

Configure the firewall to use either encryption or logical separation to protect transmitted traffic log records while in transit to the central audit server. The preferred solution is for all communication with the central audit server to egress via the management network interface and be protected by the management network's VPN.

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