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XCCDF
Juniper EX Series Switches Router Security Technical Implementation Guide
SRG-NET-000168-RTR-000078
SRG-NET-000168-RTR-000078
An XCCDF Group - A logical subset of the XCCDF Benchmark
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SRG-NET-000168-RTR-000078
1 Rule
<GroupDescription></GroupDescription>
The Juniper router must be configured to authenticate all routing protocol messages using NIST-validated FIPS 198-1 message authentication code algorithm.
Medium Severity
<VulnDiscussion>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. However, using clear-text authentication provides little benefit since an attacker can intercept traffic and view the authentication key. This would allow the attacker to use the authentication key in an attack. Since MD5 is vulnerable to "birthday" attacks and may be compromised, routing protocol authentication must use FIPS 198-1 validated algorithms and modules to encrypt the authentication key. 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. IP Security (IPsec) Security Association (SA) routing protocol authentication provides strong protection against unauthorized ("rogue") routing updates. IPsec SAs offer Authentication Header (AH) or Encapsulated Security Payload (ESP) to protect the routing updates. IPsec SA is required by newer routing protocols like OSPFv3 for authentication. IPsec SA routing protocol authentication supports FIPS 198-1 validated algorithms.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>