Title

The Juniper router must be configured to implement message authentication for all control plane protocols. (Cat II impact)

Discussion

A rogue router could send a fictitious routing update to convince a site's perimeter router to send traffic to an incorrect or even a rogue destination. This diverted traffic could be analyzed to learn confidential information about the site's network or used to disrupt the network's ability to communicate with other networks. This is known as a "traffic attraction attack" and is prevented by configuring neighbor router authentication for routing updates. This requirement applies to all IPv4 and IPv6 protocols that are used to exchange routing or packet forwarding information; this includes all Interior Gateway Protocols (such as OSPF, EIGRP, and IS-IS) and Exterior Gateway Protocols (such as BGP), MPLS-related protocols (such as LDP), and multicast-related protocols.

Check Content

Review the router configuration. Verify that neighbor router authentication is enabled for all routing protocols as shown in the example configuration below. protocols { bgp { group AS_5 { type external; peer-as 5; neighbor x.x.x.x { authentication-key "$8$tBga0ORx7VsYoIEgJ"; ## SECRET-DATA } } } ospf { area 0.0.0.0 { interface ge-0/0/0.0 { authentication { simple-password "$8$NHVb2mPQ3nCYg/t"; ## SECRET-DATA } } interface ge-0/1/0.0 { authentication { simple-password "$8$Lgb7NbHkPTQnVwF/"; ## SECRET-DATA } } interface lo0.0; interface ge-0/2/0.0 { authentication { simple-password "$8$7DdVY.mTF39s26A"; ## SECRET-DATA } } } } isis { level 1 { authentication-key "$8$n2OT9CuvMXN-wp0VY"; ## SECRET-DATA authentication-type md5; } level 2 { authentication-key "$8$8G9x7ViHm5T3dbz6"; ## SECRET-DATA authentication-type md5; } interface ge-0/0/0.0; interface ge-0/0/1.0; } ldp { interface ge-0/0/0.0; interface ge-0/0/1.0; session 10.3.3.3 { authentication-key "$8$3hus/u1ylMNVYX7qf"; ## SECRET-DATA } session 10.1.2.2 { authentication-key "$8$Qq0I3nCrlMLX-9A7V"; ## SECRET-DATA } } rip { authentication-type md5; authentication-key "$8$34fM/u1ylMNVYX7qf"; ## SECRET-DATA group RIP_GROUP { neighbor ge-1/0/1.0; } } } If authentication is not enabled for all control plane protocols, this is a finding.

Fix Text

Configure authentication to be enabled for all control plane protocols as shown in the example below. [edit protocols ospf area 0.0.0.0] set interface ge-0/0/0 authentication simple-password xxxxxxxxxxxx set interface ge-0/1/0 authentication simple-password xxxxxxxxxxxx set interface ge-0/2/0 authentication simple-password xxxxxxxxxxxx [edit protocols isis] set level 1 authentication-type md5 set level 1 authentication-key xxxxxxxx set level 2 authentication-type md5 set level 2 authentication-key xxxxxxxx [edit protocols rip] set authentication-type md5 set authentication-key xxxxxxxx [edit protocols bgp group AS_2 neighbor x.x.x.x] set authentication-key xxxxxxxxxxxxxxx [edit protocols ldp] set session 10.1.2.2 authentication-key xxxxxxxxxx

Additional Identifiers

Rule ID: SV-217012r604135_rule

Vulnerability ID: V-217012

Group Title: SRG-NET-000230-RTR-000001

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.