II - Mission Support Classified
Rules and Groups employed by this XCCDF Profile
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SRG-NET-000362-L2S-000023
<GroupDescription></GroupDescription>Group -
The Cisco switch must have STP Loop Guard enabled.
<VulnDiscussion>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.
<VulnDiscussion>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.
<VulnDiscussion>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.
<VulnDiscussion>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.
<VulnDiscussion>DAI intercepts Address Resolution Protocol (ARP) requests and verifies that each of these packets has a valid IP-to-MAC addre...Rule Medium Severity
Node 2
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