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Cisco IOS XE Switch RTR Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000362-RTR-000123

    <GroupDescription></GroupDescription>
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  • The Cisco multicast Designated switch (DR) must be configured to set the shortest-path tree (SPT) threshold to infinity to minimalize source-group (S, G) state within the multicast topology where Any Source Multicast (ASM) is deployed.

    &lt;VulnDiscussion&gt;ASM can have many sources for the same groups (many-to-many). For many receivers, the path via the RP may not be ideal compar...
    Rule Medium Severity
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  • SRG-NET-000364-RTR-000116

    <GroupDescription></GroupDescription>
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  • The Cisco Multicast Source Discovery Protocol (MSDP) switch must be configured to only accept MSDP packets from known MSDP peers.

    &lt;VulnDiscussion&gt;MSDP peering with customer network switches presents additional risks to the DISN Core, whether from a rogue or misconfigured...
    Rule Medium Severity
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  • SRG-NET-000343-RTR-000002

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco Multicast Source Discovery Protocol (MSDP) switch must be configured to authenticate all received MSDP packets.

    &lt;VulnDiscussion&gt;MSDP peering with customer network switches presents additional risks to the core, whether from a rogue or misconfigured MSDP...
    Rule Medium Severity
    Show

  • SRG-NET-000018-RTR-000007

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco Multicast Source Discovery Protocol (MSDP) switch must be configured to filter received source-active multicast advertisements for any undesirable multicast groups and sources.

    &lt;VulnDiscussion&gt;The interoperability of BGP extensions for interdomain multicast routing and MSDP enables seamless connectivity of multicast ...
    Rule Low Severity
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  • SRG-NET-000018-RTR-000008

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco Multicast Source Discovery Protocol (MSDP) switch must be configured to filter source-active multicast advertisements to external MSDP peers to avoid global visibility of local-only multicast sources and groups.

    &lt;VulnDiscussion&gt;To avoid global visibility of local information, there are a number of source-group (S, G) states in a PIM-SM domain that mus...
    Rule Low Severity
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  • SRG-NET-000018-RTR-000009

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco Multicast Source Discovery Protocol (MSDP) switch must be configured to limit the amount of source-active messages it accepts on a per-peer basis.

    &lt;VulnDiscussion&gt;To reduce any risk of a denial-of-service (DoS) attack from a rogue or misconfigured MSDP switch, the switch must be configur...
    Rule Low Severity
    Show

  • SRG-NET-000512-RTR-000011

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco Multicast Source Discovery Protocol (MSDP) switch must be configured to use a loopback address as the source address when originating MSDP traffic.

    &lt;VulnDiscussion&gt;Using a loopback address as the source address offers a multitude of uses for security, access, management, and scalability o...
    Rule Low Severity
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  • SRG-NET-000512-RTR-000100

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco switch must be configured to have Cisco Express Forwarding enabled.

    &lt;VulnDiscussion&gt;The Cisco Express Forwarding (CEF) switching mode replaces the traditional Cisco routing cache with a data structure that mir...
    Rule Medium Severity
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  • SRG-NET-000512-RTR-000012

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco switch must be configured to advertise a hop limit of at least 32 in Switch Advertisement messages for IPv6 stateless auto-configuration deployments.

    &lt;VulnDiscussion&gt;The Neighbor Discovery protocol allows a hop limit value to be advertised by routers in a Router Advertisement message being ...
    Rule Low Severity
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  • SRG-NET-000512-RTR-000013

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco switch must not be configured to use IPv6 Site Local Unicast addresses.

    &lt;VulnDiscussion&gt;As currently defined, site local addresses are ambiguous and can be present in multiple sites. The address itself does not co...
    Rule Medium Severity
    Show

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