Check: SRG-NET-000063-VPN-000220
Virtual Private Network (VPN) SRG:
SRG-NET-000063-VPN-000220
(in version v2 r4)
Title
The VPN Gateway must be configured to use IPsec with SHA-2 or greater for hashing to protect the integrity of remote access sessions. (Cat II impact)
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 non-public 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 or greater for hashing to protect the integrity of remote access sessions. If the VPN Gateway does not use IPsec with SHA-2 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 or greater for hashing to protect the integrity of remote access sessions.
Additional Identifiers
Rule ID: SV-207192r803421_rule
Vulnerability ID: V-207192
Group Title: SRG-NET-000063
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-001453 |
The information system implements cryptographic mechanisms to protect the integrity of remote access sessions. |
Controls
Number | Title |
---|---|
AC-17 (2) |
Protection Of Confidentiality / Integrity Using Encryption |