Verify the DoD Interoperability cross-certificates are installed on unclassified systems as Untrusted Certificates.
Run "PowerShell" as an administrator.
Execute the following command:
Get-ChildItem -Path Cert:Localmachine\disallowed | Where {$_.Issuer -Like "*DoD Interoperability*" -and $_.Subject -Like "*DoD*"} | FL Subject, Issuer, Thumbprint, NotAfter
If the following certificate "Subject", "Issuer", and "Thumbprint" information is not displayed, this is a finding.
Subject: CN=DoD Root CA 3, OU=PKI, OU=DoD, O=U.S. Government, C=US
Issuer: CN=DoD Interoperability Root CA 2, OU=PKI, OU=DoD, O=U.S. Government, C=US
Thumbprint: 49CBE933151872E17C8EAE7F0ABA97FB610F6477
NotAfter: 11/16/2024 9:57:16 AM
Alternately, use the Certificates MMC snap-in:
Run "MMC".
Select "File", "Add/Remove Snap-in".
Select "Certificates", click "Add".
Select "Computer account", click "Next".
Select "Local computer: (the computer this console is running on)", click "Finish".
Click "OK".
Expand "Certificates" and navigate to Untrusted Certificates >> Certificates.
For each certificate with "DoD Root CA…" under "Issued To" and "DoD Interoperability Root CA…" under "Issued By":
Right-click on the certificate and select "Open".
Select the "Details" tab.
Scroll to the bottom and select "Thumbprint".
If the certificates below are not listed or the value for the "Thumbprint" field is not as noted, this is a finding.
Issued To: DoD Root CA 3
Issued By: DoD Interoperability Root CA 2
Thumbprint: 49CBE933151872E17C8EAE7F0ABA97FB610F6477
Valid to: Wednesday, November 16, 2024