Detections
Analytics
JUEX-RT-000140 - The Juniper router must be configured to bind a Protocol Independent Multicast (PIM) neighbor filter to interfaces that have PIM enabled.
Information
PIM is a routing protocol used to build multicast distribution trees for forwarding multicast traffic across the network infrastructure. PIM traffic must be limited to only known PIM neighbors by configuring and binding a PIM neighbor filter to those interfaces that have PIM enabled. If a PIM neighbor filter is not applied to those interfaces that have PIM enabled, unauthorized routers can join the PIM domain, discover and use the rendezvous points, and also advertise their rendezvous points into the domain. This can result in a denial of service by traffic flooding or result in the unauthorized transfer of data.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 neighbor filters to only accept PIM control plane traffic from documented PIM neighbors. Bind neighbor filters to all PIM enabled interfaces.
set policy-options prefix-list PIM-NEIGHBOR-1 <PIM neighbor address>/32
set policy-options policy-statement PIM-NBR-1 from prefix-list PIM-NEIGHBOR-1
set policy-options policy-statement PIM-NBR-1 then accept
set protocols pim interface <interface name>.<logical unit> mode sparse
set protocols pim interface <interface name>.<logical unit> neighbor-policy PIM-NBR-1
set protocols pim interface all disable
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Juniper_EX_Switches_Y26M01_STIG.zip
Item Details
Audit Name: DISA Juniper EX Series Router v2r1
Category: ACCESS CONTROL
References: 800-53|AC-4, CAT|II, CCI|CCI-001414, Rule-ID|SV-253986r843991_rule, STIG-ID|JUEX-RT-000140, Vuln-ID|V-253986
Plugin: Juniper
Control ID: f14bb5fcb06972f5333473f77e64dfa064b5a84bba69807aaab30ef0a2c95020