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Cisco IOS Router RTR Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000364-RTR-000116

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

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

  • SRG-NET-000343-RTR-000002

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

    &lt;VulnDiscussion&gt;MSDP peering with customer network routers 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) router 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
    Show

  • SRG-NET-000018-RTR-000008

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco Multicast Source Discovery Protocol (MSDP) router 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
    Show

  • SRG-NET-000018-RTR-000009

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco Multicast Source Discovery Protocol (MSDP) router 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 router, the router 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) router 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
    Show

  • SRG-NET-000205-RTR-000014

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco perimeter router must be configured to restrict it from accepting outbound IP packets that contain an illegitimate address in the source address field via egress filter or by enabling Unicast Reverse Path Forwarding (uRPF).

    &lt;VulnDiscussion&gt;A compromised host in an enclave can be used by a malicious platform to launch cyberattacks on third parties. This is a commo...
    Rule High Severity
    Show

  • SRG-NET-000205-RTR-000015

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco perimeter router 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 router processor. Hackers who initiate den...
    Rule Medium Severity
    Show

  • SRG-NET-000362-RTR-000124

    <GroupDescription></GroupDescription>
    Group
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  • The Cisco BGP router 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 router's IP-based control plane from DoS attacks. Many attacks focuse...
    Rule Low Severity
    Show

  • SRG-NET-000230-RTR-000002

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Cisco BGP router 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
    Show

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