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Cisco ASA Firewall Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000019-FW-000004

    <GroupDescription></GroupDescription>
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  • The Cisco ASA must immediately use updates made to policy enforcement mechanisms such as firewall rules, security policies, and security zones.

    &lt;VulnDiscussion&gt;Information flow policies regarding dynamic information flow control include, for example, allowing or disallowing informatio...
    Rule Medium Severity
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  • SRG-NET-000061-FW-000001

    <GroupDescription></GroupDescription>
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  • The Cisco ASA must be configured to restrict VPN traffic according to organization-defined filtering rules.

    &lt;VulnDiscussion&gt;Remote access devices (such as those providing remote access to network devices and information systems) that lack automated ...
    Rule Medium Severity
    Show

  • SRG-NET-000074-FW-000009

    <GroupDescription></GroupDescription>
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  • The Cisco ASA must be configured to generate traffic log entries containing information to establish what type of events occurred.

    &lt;VulnDiscussion&gt;Without establishing what type of event occurred, it would be difficult to establish, correlate, and investigate the events l...
    Rule Medium Severity
    Show

  • SRG-NET-000075-FW-000010

    <GroupDescription></GroupDescription>
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  • The Cisco ASA must be configured to generate traffic log entries containing information to establish when (date and time) the events occurred.

    &lt;VulnDiscussion&gt;Without establishing when events occurred, it is impossible to establish, correlate, and investigate the events leading up to...
    Rule Medium Severity
    Show

  • SRG-NET-000089-FW-000019

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco ASA must be configured to queue log records locally in the event that the central audit server is down or not reachable.

    &lt;VulnDiscussion&gt;It is critical that when the network element is at risk of failing to process traffic logs as required, it takes action to mi...
    Rule Medium Severity
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  • SRG-NET-000098-FW-000021

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco ASA must be configured to use TCP when sending log records to the central audit server.

    &lt;VulnDiscussion&gt;If the default UDP protocol is used for communication between the hosts and devices to the Central Log Server, then log recor...
    Rule Medium Severity
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  • SRG-NET-000131-FW-000025

    <GroupDescription></GroupDescription>
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  • The Cisco ASA must be configured to disable or remove unnecessary network services and functions that are not used as part of its role in the architecture.

    &lt;VulnDiscussion&gt;Network devices are capable of providing a wide variety of functions (capabilities or processes) and services. Some of these ...
    Rule Medium Severity
    Show

  • SRG-NET-000193-FW-000030

    <GroupDescription></GroupDescription>
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  • The Cisco ASA must be configured to enable threat detection to mitigate risks of denial-of-service (DoS) attacks.

    &lt;VulnDiscussion&gt;A firewall experiencing a DoS attack will not be able to handle production traffic load. The high utilization and CPU caused ...
    Rule Medium Severity
    Show

  • SRG-NET-000205-FW-000040

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco ASA perimeter firewall must be configured to filter traffic destined to the enclave in accordance with the specific traffic that is approved and registered in the Ports, Protocols, and Services Management (PPSM) Category Assurance List (CAL) and vulnerability assessments.

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

  • SRG-NET-000333-FW-000014

    <GroupDescription></GroupDescription>
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  • The Cisco ASA must be configured to send log data of denied traffic to a central audit server for analysis.

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

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