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III - Administrative Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-NET-000205-RTR-000004

    <GroupDescription></GroupDescription>
    Group
  • The Cisco perimeter switch must be configured to filter ingress traffic at the external interface on an inbound direction.

    &lt;VulnDiscussion&gt;Access lists are used to separate data traffic into that which it will route (permitted packets) and that which it will not r...
    Rule Medium Severity
  • SRG-NET-000205-RTR-000005

    <GroupDescription></GroupDescription>
    Group
  • The Cisco perimeter switch must be configured to filter egress traffic at the internal interface on an inbound direction.

    &lt;VulnDiscussion&gt;Access lists are used to separate data traffic into that which it will route (permitted packets) and that which it will not r...
    Rule Medium Severity
  • SRG-NET-000205-RTR-000015

    <GroupDescription></GroupDescription>
    Group
  • The Cisco perimeter switch must be configured to block all packets with any IP options.

    &lt;VulnDiscussion&gt;Packets with IP options are not fast switched and henceforth must be punted to the switch processor. Hackers who initiate den...
    Rule Medium Severity
  • SRG-NET-000364-RTR-000111

    <GroupDescription></GroupDescription>
    Group
  • The Cisco perimeter switch must be configured to have Link Layer Discovery Protocol (LLDP) disabled on all external interfaces.

    &lt;VulnDiscussion&gt;LLDP is a neighbor discovery protocol used to advertise device capabilities, configuration information, and device identity. ...
    Rule Low Severity
  • SRG-NET-000364-RTR-000111

    <GroupDescription></GroupDescription>
    Group
  • The Cisco perimeter switch must be configured to have Cisco Discovery Protocol (CDP) disabled on all external interfaces.

    &lt;VulnDiscussion&gt;CDP is a Cisco proprietary neighbor discovery protocol used to advertise device capabilities, configuration information, and ...
    Rule Low Severity
  • SRG-NET-000364-RTR-000112

    <GroupDescription></GroupDescription>
    Group
  • The Cisco perimeter switch must be configured to have Proxy ARP disabled on all external interfaces.

    &lt;VulnDiscussion&gt;When Proxy ARP is enabled on a switch, it allows that switch to extend the network (at Layer 2) across multiple interfaces (L...
    Rule Medium Severity
  • SRG-NET-000364-RTR-000113

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

    &lt;VulnDiscussion&gt;For in-band management, the management network must have its own subnet in order to enforce control and access boundaries pro...
    Rule Medium Severity
  • SRG-NET-000205-RTR-000012

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must be configured to only permit management traffic that ingresses and egresses the out-of-band management (OOBM) interface.

    &lt;VulnDiscussion&gt;The OOBM access switch will connect to the management interface of the managed network elements. The management interface can...
    Rule Medium Severity
  • SRG-NET-000362-RTR-000124

    <GroupDescription></GroupDescription>
    Group
  • The Cisco BGP switch must be configured to enable the Generalized TTL Security Mechanism (GTSM).

    &lt;VulnDiscussion&gt;As described in RFC 3682, GTSM is designed to protect a switch's IP-based control plane from DoS attacks. Many attacks focuse...
    Rule Low Severity
  • SRG-NET-000230-RTR-000002

    <GroupDescription></GroupDescription>
    Group
  • The Cisco BGP switch must be configured to use a unique key for each autonomous system (AS) that it peers with.

    &lt;VulnDiscussion&gt;If the same keys are used between eBGP neighbors, the chance of a hacker compromising any of the BGP sessions increases. It i...
    Rule Medium Severity

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