The Juniper SRX Services Gateway VPN must only allow the use of DoD PKI established certificate authorities for verification of the establishment of protected sessions.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-66673	JUSX-VN-000026	SV-81163r1_rule		Medium

Description
Untrusted certificate authorities (CA) can issue certificates, but they may be issued by organizations or individuals that seek to compromise DoD systems or by organizations with insufficient security controls. If the CA used for verifying the certificate is not a DoD-approved CA, trust of this CA has not been established. The DoD will only accept PKI certificates obtained from a DoD-approved internal or external certificate authority. Reliance on CAs for the establishment of secure sessions includes, for example, the use of Internet Key Exchange (IKE) authentication certificates. This requirement focuses on communications protection for the application session rather than for the network packet. Network elements that perform these functions must be able to identify which session identifiers were generated when the sessions were established.

Description

Untrusted certificate authorities (CA) can issue certificates, but they may be issued by organizations or individuals that seek to compromise DoD systems or by organizations with insufficient security controls. If the CA used for verifying the certificate is not a DoD-approved CA, trust of this CA has not been established. The DoD will only accept PKI certificates obtained from a DoD-approved internal or external certificate authority. Reliance on CAs for the establishment of secure sessions includes, for example, the use of Internet Key Exchange (IKE) authentication certificates. This requirement focuses on communications protection for the application session rather than for the network packet. Network elements that perform these functions must be able to identify which session identifiers were generated when the sessions were established.

STIG	Date
Juniper SRX SG VPN Security Technical Implementation Guide	2017-10-03

Details

Check Text ( C-67299r1_chk )
Verify the all IKE proposals are set to use the AES encryption algorithm. [edit] show security ike View the value of the authentication-method for each defined proposal. If the value of the authentication-method for each defined proposal is not set to use AES, this is a finding.

Fix Text (F-72749r1_fix)
The following example commands configure the IKE (phase 1) proposals. Use certificates instead of pre-shared keys to establish the IKE phase 1 tunnel. This proposal requires AES 256-bit encryption set security ike proposal p1-proposal authentication-method rsa-signatures