The Juniper SRX Services Gateway VPN must be configured to use IPsec with SHA1 or greater to negotiate hashing to protect the integrity of remote access sessions.

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The Juniper SRX Services Gateway VPN must be configured to use IPsec with SHA1 or greater to negotiate hashing to protect the integrity of remote access sessions.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-214675	JUSX-VN-000008	SV-214675r382846_rule		Medium

Description
Without strong cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access VPN provides access to DoD non-public information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network.

STIG	Date
Juniper SRX Services Gateway VPN Security Technical Implementation Guide	2022-09-14

Details

Check Text ( C-15876r297612_chk )
Verify all IPSec proposals are set to use the sha-256 hashing algorithm. [edit] show security ipsec proposal View the value of the encryption algorithm for each defined proposal. If the value of the encryption algorithm option for all defined proposals is not set to use SHA1 or greater, this is a finding.

Fix Text (F-15874r297613_fix)
The following example commands configure the IPSec proposal. set security ipsec proposal authentication-algorithm