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Firewall Security Requirements Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000205

    <GroupDescription></GroupDescription>
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  • The perimeter firewall must filter traffic destined to the internal enclave in accordance with the specific traffic that is approved and registered in the Ports, Protocols, and Services Management (PPSM) Category Assurance List (CAL), Vulnerability Assessments (VAs) for that the enclave.

    &lt;VulnDiscussion&gt;The enclave's internal network contains the servers where mission-critical data and applications reside. Malicious traffic ca...
    Rule Medium Severity
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  • SRG-NET-000235

    <GroupDescription></GroupDescription>
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  • The firewall must fail to a secure state upon the failure of the following: system initialization, shutdown, or system abort.

    &lt;VulnDiscussion&gt;Failure to a known safe state helps prevent systems from failing to a state that may cause loss of data or unauthorized acces...
    Rule Medium Severity
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  • SRG-NET-000236

    <GroupDescription></GroupDescription>
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  • In the event of a system failure of the firewall function, the firewall must be configured to save diagnostic information, log system messages, and load the most current security policies, rules, and signatures when restarted.

    &lt;VulnDiscussion&gt;Failure to a secure state can address safety or security in accordance with the mission needs of the organization. Failure to...
    Rule Medium Severity
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  • SRG-NET-000333

    <GroupDescription></GroupDescription>
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  • The firewall must be configured to send traffic log entries to a central audit server for management and configuration of the traffic log entries.

    &lt;VulnDiscussion&gt;Without the ability to centrally manage the content captured in the traffic log entries, identification, troubleshooting, and...
    Rule Medium Severity
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  • SRG-NET-000335

    <GroupDescription></GroupDescription>
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  • If communication with the central audit server is lost, the firewall must generate a real-time alert to, at a minimum, the SCA and ISSO.

    &lt;VulnDiscussion&gt;Without a real-time alert (less than a second), security personnel may be unaware of an impending failure of the audit functi...
    Rule Medium Severity
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