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V-66671

CAT II (Medium)

The Juniper SRX Services Gateway VPN IKE must use NIST FIPS-validated cryptography to implement encryption services for unclassified VPN traffic.

Rule ID

SV-81161r1_rule

STIG

Juniper SRX SG VPN Security Technical Implementation Guide

Version

V1R2

CCIs

CCI-002450

Discussion

Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The network element must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated.

Check Content

Verify all Internet Key Exchange (IKE) proposals are set to use the AES encryption algorithm.

[edit]
show security ike

View the value of the encryption algorithm for each defined proposal.

If the value of the authentication method and other options are not set to use FIPS-compliant values, this is a finding.

Fix Text

The following example commands configure the IKE (phase 1) proposal.

[edit]
set security ike proposal <P1-PROPOSAL> authentication-method rsa-signatures
set security ike proposal p1-proposal dh-group group14
set security ike proposal p1-proposal authentication-algorithm sha-256
set security ike proposal p1-proposal encryption-algorithm aes-256-cbc
set security ike proposal p1-proposal lifetime-seconds 86400