ARBA-VN-000220 - AOS, when used as a VPN Gateway, must be configured to use IPsec with SHA-2 at 384 bits or greater for hashing to protect the integrity of remote access sessions.

Information

Without strong cryptographic integrity protections, information can be altered by unauthorized users without detection.

SHA-1 is considered a compromised hashing standard and is being phased out of use by industry and government standards. DOD systems must not be configured to use SHA-1 for integrity of remote access sessions.

The remote access VPN provides access to DOD nonpublic information systems by an authorized user (or an information system) communicating through an external, nonorganization-controlled network.

Satisfies: SRG-NET-000063-VPN-000220, SRG-NET-000074-VPN-000250, SRG-NET-000168-VPN-000600, SRG-NET-000230-VPN-000780

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

Configure AOS with the following commands:
configure terminal
crypto isakmp policy <priority>
hash sha2-384-192
exit
write memory

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_HPE_Aruba_Networking_AOS_Y26M04_STIG.zip