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V-207192

CAT II (Medium)

The 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.

Rule ID

SV-207192r916146_rule

STIG

Virtual Private Network (VPN) Security Requirements Guide

Version

V3R4

CCIs

CCI-001453

Discussion

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, non-organization-controlled network.

Check Content

Verify the VPN Gateway uses IPsec with SHA-2 at 384 bits or greater for hashing to protect the integrity of remote access sessions.

If the VPN Gateway does not use IPsec with SHA-2 at 384 bits or greater for hashing to protect the integrity of remote access sessions, this is a finding.

Fix Text

Configure the VPN Gateway to use IPsec with SHA-2 at 384 bits or greater for hashing to protect the integrity of remote access sessions.