STIGQter: STIG Summary: Juniper Router RTR Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 12 Feb 2021:

The Juniper 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).

DISA Rule

SV-217036r639663_rule

Vulnerability Number

V-217036

Group Title

SRG-NET-000205-RTR-000014

Rule Version

JUNI-RT-000310

Severity

CAT I

CCI(s)

• CCI-001094 - The information system restricts the ability of individuals to launch organization-defined denial of service attacks against other information systems.

Weight

10

Fix Recommendation

This requirement is not applicable for the DoDIN Backbone.

Configure the router to ensure that an egress filter or uRPF is configured on internal interfaces to restrict the router from accepting any outbound IP packet that contains an illegitimate address in the source field. The example below enables uRPF.

[edit interfaces ge-0/1/0 unit 0 family inet]
set rpf-check

Check Contents

This requirement is not applicable for the DoDIN Backbone.

Review the router configuration to verify uRPF or an egress filter has been configured on all internal interfaces to restrict the router from accepting outbound IP packets that contain an illegitimate address in the source address field.

interfaces {
ge-0/1/0 {
description "LAN link";
unit 0 {
family inet {
rpf-check;

If uRPF or an egress filter to restrict the router from accepting outbound IP packets that contain an illegitimate address in the source address field has not been configured on all internal interfaces in an enclave, this is a finding.

Vulnerability Number

V-217036

Documentable

False

Rule Version

JUNI-RT-000310

Severity Override Guidance

This requirement is not applicable for the DoDIN Backbone.

Review the router configuration to verify uRPF or an egress filter has been configured on all internal interfaces to restrict the router from accepting outbound IP packets that contain an illegitimate address in the source address field.

interfaces {
ge-0/1/0 {
description "LAN link";
unit 0 {
family inet {
rpf-check;

If uRPF or an egress filter to restrict the router from accepting outbound IP packets that contain an illegitimate address in the source address field has not been configured on all internal interfaces in an enclave, this is a finding.

Check Content Reference

M

Target Key

4032

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