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I - Mission Critical Sensitive

Rules and Groups employed by this XCCDF Profile

  • SRG-NET-000148-L2S-000015

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must uniquely identify and authenticate all network-connected endpoint devices before establishing any connection.

    &lt;VulnDiscussion&gt;Controlling LAN access via 802.1x authentication can assist in preventing a malicious user from connecting an unauthorized PC...
    Rule High Severity
  • SRG-NET-000168-L2S-000019

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must authenticate all VLAN Trunk Protocol (VTP) messages with a hash function using the most secured cryptographic algorithm available.

    &lt;VulnDiscussion&gt;VLAN Trunk Protocol (VTP) provides central management of VLAN domains, thus reducing administration in a switched network. Wh...
    Rule Medium Severity
  • SRG-NET-000193-L2S-000020

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must manage excess bandwidth to limit the effects of packet flooding types of denial of service (DoS) attacks.

    &lt;VulnDiscussion&gt;Denial of service is a condition when a resource is not available for legitimate users. Packet flooding DDoS attacks are refe...
    Rule Medium Severity
  • SRG-NET-000362-L2S-000021

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

    &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
  • SRG-NET-000362-L2S-000022

    <GroupDescription></GroupDescription>
    Group
  • The Cisco 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
  • SRG-NET-000362-L2S-000023

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must have STP Loop Guard enabled.

    &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
  • SRG-NET-000362-L2S-000024

    <GroupDescription></GroupDescription>
    Group
  • The Cisco 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
  • SRG-NET-000362-L2S-000025

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must have DHCP snooping for all user VLANs to validate DHCP messages from untrusted sources.

    &lt;VulnDiscussion&gt;In an enterprise network, devices under administrative control are trusted sources. These devices include the switches, route...
    Rule Medium Severity
  • SRG-NET-000362-L2S-000026

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must have IP Source Guard enabled on all user-facing or untrusted access switch ports.

    &lt;VulnDiscussion&gt;IP Source Guard provides source IP address filtering on a Layer 2 port to prevent a malicious host from impersonating a legit...
    Rule Medium Severity
  • SRG-NET-000362-L2S-000027

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must have Dynamic Address Resolution Protocol (ARP) Inspection (DAI) enabled on all user VLANs.

    &lt;VulnDiscussion&gt;DAI intercepts Address Resolution Protocol (ARP) requests and verifies that each of these packets has a valid IP-to-MAC addre...
    Rule Medium Severity

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