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ARST-RT-000180 - The Arista perimeter router must be configured to not redistribute static routes to an alternate gateway service provider into BGP or an IGP peering with the NIPRNet or to other autonomous systems.

Information

If the static routes to the alternate gateway are being redistributed into an Exterior Gateway Protocol or Interior Gateway Protocol to a NIPRNet gateway, this could make traffic on NIPRNet flow to that particular router and not to the internet Access Point routers. This could not only wreak havoc with traffic flows on NIPRNet, but it could overwhelm the connection from the router to the NIPRNet gateway(s) and also cause traffic destined for outside of NIPRNet to bypass the defenses of the internet Access Points.

 NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

This requirement is not applicable for the DODIN backbone.

Configure the router so static routes are not redistributed to an alternate gateway into either an Exterior Gateway Protocol or Interior Gateway Protocol to the NIPRNet or to other autonomous systems.

Review the BGP and IGP configurations and remove the redistribute static statement if it is configured.

BGP Example:

router bgp 1500
 no redistribute static

OSPF Example:

router ospf 1500
 no redistribute static

RIP Example:

router rip
 no redistribute static

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Arista_MLS_EOS_4-X_Y25M07_STIG.zip

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-4, CAT|III, CCI|CCI-001414, Rule-ID|SV-256004r882354_rule, STIG-ID|ARST-RT-000180, Vuln-ID|V-256004

Plugin: Arista

Control ID: dae18f0b0f8a857bf476b9f110841b4ebf84b60a13dd4779f56daf5fe58452fb