The US DoD CCEB Interoperability Root CA cross-certificates must be installed into the Untrusted Certificates Store on unclassified systems.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-225443	WN12-PK-000004	SV-225443r569252_rule		Medium

Description
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 US DoD CCEB Interoperability Root CA cross-certificates must be installed in the Untrusted Certificate Store. This requirement only applies to unclassified systems.

STIG	Date
Microsoft Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide	2021-10-18

Details

Check Text ( C-27142r603174_chk )
Verify the US DoD CCEB Interoperability Root CA cross-certificate is installed on unclassified systems as an Untrusted Certificate. Run "PowerShell" as an administrator. Execute the following command: Get-ChildItem -Path Cert:Localmachine\disallowed \| Where Issuer -Like "CCEB Interoperability" \| 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=US DoD CCEB Interoperability Root CA 2, OU=PKI, OU=DoD, O=U.S. Government, C=US Thumbprint: AF132AC65DE86FC4FB3FE51FD637EBA0FF0B12A9 NotAfter: 8/26/2022 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 "US DoD CCEB 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 certificate below is not listed or the value for the "Thumbprint" field is not as noted, this is a finding. Issued To: DoD Root CA 3 Issuer by: US DoD CCEB Interoperability Root CA 2 Thumbprint: AF132AC65DE86FC4FB3FE51FD637EBA0FF0B12A9 Valid: Friday, August 26, 2022

Check Text ( C-27142r603174_chk )

Verify the US DoD CCEB Interoperability Root CA cross-certificate is installed on unclassified systems as an Untrusted Certificate.

Run "PowerShell" as an administrator.

Execute the following command:

Get-ChildItem -Path Cert:Localmachine\disallowed | Where Issuer -Like "*CCEB Interoperability*" | 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=US DoD CCEB Interoperability Root CA 2, OU=PKI, OU=DoD, O=U.S. Government, C=US
Thumbprint: AF132AC65DE86FC4FB3FE51FD637EBA0FF0B12A9
NotAfter: 8/26/2022

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 "US DoD CCEB 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 certificate below is not listed or the value for the "Thumbprint" field is not as noted, this is a finding.

Issued To: DoD Root CA 3
Issuer by: US DoD CCEB Interoperability Root CA 2
Thumbprint: AF132AC65DE86FC4FB3FE51FD637EBA0FF0B12A9
Valid: Friday, August 26, 2022

Fix Text (F-27130r603175_fix)
Install the US DoD CCEB Interoperability Root CA cross-certificate on unclassified systems. Issued To - Issued By - Thumbprint DoD Root CA 3 - US DoD CCEB Interoperability Root CA 2 - AF132AC65DE86FC4FB3FE51FD637EBA0FF0B12A9 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.

Fix Text (F-27130r603175_fix)

Install the US DoD CCEB Interoperability Root CA cross-certificate on unclassified systems.

Issued To - Issued By - Thumbprint
DoD Root CA 3 - US DoD CCEB Interoperability Root CA 2 - AF132AC65DE86FC4FB3FE51FD637EBA0FF0B12A9

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.