Check: WN10-PK-000015
Microsoft Windows 10 STIG:
WN10-PK-000015
(in versions v3 r2 through v2 r6)
Title
The DoD Interoperability Root CA cross-certificates must be installed in the Untrusted Certificates Store on unclassified systems. (Cat II impact)
Discussion
To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to the system chaining to a root other than DoD Root CAs, the DoD Interoperability Root CA cross-certificates must be installed in the Untrusted Certificate Store. This requirement only applies to unclassified systems.
Check Content
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 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
Fix Text
Install the DoD Interoperability Root CA cross-certificates on unclassified systems. Issued To - Issued By - Thumbprint DoD Root CA 3 - DoD Interoperability Root CA 2 - 49CBE933151872E17C8EAE7F0ABA97FB610F6477 The certificates can be installed using the InstallRoot tool. The tool and user guide are available on Cyber Exchange at https://cyber.mil/pki-pke/tools-configuration-files. PKI can be found at https://crl.gds.disa.mil/.
Additional Identifiers
Rule ID: SV-220905r958448_rule
Vulnerability ID: V-220905
Group Title: SRG-OS-000066-GPOS-00034
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000185 |
For public key-based authentication, validate certificates by constructing and verifying a certification path to an accepted trust anchor including checking certificate status information. |
| CCI-002470 |
Only allow the use of organization-defined certificate authorities for verification of the establishment of protected sessions. |