The FortiGate device must use DoD-approved Certificate Authorities (CAs) for public key certificates.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-234198SRG-APP-000516-NDM-000344FGFW-ND-000195SV-234198r879887_rule2023-06-011
Description
For user certificates, each organization obtains certificates from an approved, shared service provider, as required by OMB policy. For federal agencies operating a legacy public key infrastructure cross-certified with the Federal Bridge Certification Authority at medium assurance or higher, this CA will suffice.
ℹ️ Check
Log in to the FortiGate GUI with Super-Admin privilege. 1. Click System. 2. Click Certificates. 3. Verify CAs are approved providers. If the public key certificates are not from an approved service provider, this is a finding.
✔️ Fix
1. Obtain CA certificate from a DoD-approved provider. 2. Log in to the FortiGate GUI with Super-Admin privilege. 3. Click System. 4. Click Certificates. 5. Click Import in the toolbar. 6. Click CA Certificate. 7. On the Import CA Certificate page, select Type File. 8. Locate the certificate file and upload the certificate file. 9. Click OK to import the certificate.