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Cisco ASA Firewall Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000335-FW-000017

    <GroupDescription></GroupDescription>
    Group
  • The Cisco ASA must be configured to generate a real-time alert to organization-defined personnel and/or the firewall administrator in the event communication with the central audit server is lost.

    &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
  • SRG-NET-000362-FW-000028

    <GroupDescription></GroupDescription>
    Group
  • The Cisco ASA must be configured to implement scanning threat detection.

    &lt;VulnDiscussion&gt;In a port scanning attack, an unauthorized application is used to scan the host devices for available services and open ports...
    Rule High Severity
  • SRG-NET-000364-FW-000031

    <GroupDescription></GroupDescription>
    Group
  • The Cisco ASA must be configured to filter inbound traffic on all external interfaces.

    &lt;VulnDiscussion&gt;Unrestricted traffic to the trusted networks may contain malicious traffic that poses a threat to an enclave or to other conn...
    Rule Medium Severity
  • SRG-NET-000364-FW-000032

    <GroupDescription></GroupDescription>
    Group
  • The Cisco ASA must be configured to filter outbound traffic on all internal interfaces.

    &lt;VulnDiscussion&gt;If outbound communications traffic is not filtered, hostile activity intended to harm other networks or packets from networks...
    Rule Medium Severity
  • SRG-NET-000364-FW-000035

    <GroupDescription></GroupDescription>
    Group
  • The Cisco ASA perimeter firewall must be configured to block all outbound management traffic.

    &lt;VulnDiscussion&gt;The management network must still have its own subnet in order to enforce control and access boundaries provided by Layer 3 n...
    Rule Medium Severity

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