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The F5 BIG-IP appliance IPsec VPN must be configured to use FIPS-validated SHA-2 or higher for Internet Key Exchange (IKE).

An XCCDF Rule

Description

Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Although allowed by SP800-131Ar2 for some applications, SHA-1 is considered a compromised hashing standard and is being phased out of use by industry and government standards. Unless required for legacy use, DOD systems must not be configured to use SHA-2 for integrity of remote access sessions. This requirement is applicable to the configuration of IKE Phase 1 and Phase 2.

ID
SV-266287r1024762_rule
Version
F5BI-VN-300041
Severity
High
References
Updated

Remediation Templates

A Manual Procedure

From the BIG-IP GUI:
1. Network.
2. IPsec.
3. IKE Peers.
4. Click on the name of the IKE peer.
5. Configure SHA-2 or higher for the following: