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Layer 2 Switch Security Requirements Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000362

    <GroupDescription></GroupDescription>
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  • SRG-NET-000362

    <GroupDescription></GroupDescription>
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  • The layer 2 switch must have Root Guard enabled on all switch ports connecting to access layer switches and hosts.

    &lt;VulnDiscussion&gt;Spanning Tree Protocol (STP) does not provide any means for the network administrator to securely enforce the topology of the...
    Rule Low Severity
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  • SRG-NET-000362

    <GroupDescription></GroupDescription>
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  • The layer 2 switch must have BPDU Guard enabled on all user-facing or untrusted access switch ports.

    &lt;VulnDiscussion&gt;If a rogue switch is introduced into the topology and transmits a Bridge Protocol Data Unit (BPDU) with a lower bridge priori...
    Rule Medium Severity
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  • SRG-NET-000362

    <GroupDescription></GroupDescription>
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  • The layer 2 switch must have STP Loop Guard enabled on all non-designated STP switch ports.

    &lt;VulnDiscussion&gt;The Spanning Tree Protocol (STP) loop guard feature provides additional protection against STP loops. An STP loop is created ...
    Rule Medium Severity
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  • SRG-NET-000362

    <GroupDescription></GroupDescription>
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  • The layer 2 switch must have Unknown Unicast Flood Blocking (UUFB) enabled.

    &lt;VulnDiscussion&gt;Access layer switches use the Content Addressable Memory (CAM) table to direct traffic to specific ports based on the VLAN nu...
    Rule Medium Severity
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  • SRG-NET-000362

    <GroupDescription></GroupDescription>
    Group
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