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The External Root CA certificates must be installed in the Trusted Root Store on unclassified systems.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-253428WN11-PK-000010SV-253428r1210301_ruleCCI-000185medium
Description
To ensure secure websites protected with External Certificate Authority (ECA) server certificates are properly validated, the system must trust the ECA Root CAs. The ECA root certificates will ensure the trust chain is established for server certificates issued from the External CAs. This requirement applies only to unclassified systems.
STIGDate
Microsoft Windows 11 Security Technical Implementation Guide2026-05-19

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

IAC-10.2PKI-Based Authentication
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (53) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-12Session Termination
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-4(17)Domain Authentication
1.00

+43 more (top 10 by confidence shown)

CCI1 mapping
CCI-000185
1.00

Details

Check Text (C-253428r1210301_chk)

Verify the ECA Root CA certificates are installed on unclassified systems as Trusted Root Certification Authorities. Run "PowerShell" as an administrator. Execute the following command: Get-ChildItem -Path Cert:Localmachine\root | Where Subject -Like "*ECA*" | FL Subject, NotAfter If the following certificate "Subject" information is not displayed, this is a finding. Note: The Common Name (CN) below is an example. Verify the "CN" displayed (ECA Root CA) is not expired. As of this writing, ECA Root CA 4 and ECA Root 5 are valid (among others). Subject: CN=ECA Root CA 4, OU=ECA, O=U.S. Government, C=US Subject: CN=ECA Root CA 5, OU=ECA, O=U.S. Government, C=US Alternately, use the Certificates MMC snap-in: Run "MMC". Select "File" and "Add/Remove Snap-in". Select "Certificates" and click "Add". Select "Computer account" and click "Next". Select "Local computer: (the computer this console is running on)" and click "Finish". Click "OK". Expand "Certificates" and navigate to Trusted Root Certification Authorities >> Certificates. For each of the ECA Root CA certificates noted below: Right-click on the certificate and select "Open". Select the "Details" tab. Verify the Expiration Date is a future date. Scroll to the bottom and select "Subject". If the certificates listed do not include "ECA Root CA" in the name or are expired, this is a finding. Note: This is not a complete list of possible ECA Root CA certificates. ECA Root CA 4 ECA Root CA 5

Fix Text (F-56831r1210234_fix)

Install a valid (unexpired) ECA Root CA certificate on unclassified systems. The list below is not to be treated as exhaustive. They are valid as of this writing, but the STIG should not be used as a definitive resource for the organizationally approved ECA Root CA certificates for your systems. ECA Root CA 4 ECA Root CA 5 The InstallRoot tool is available on Cyber Exchange at https://cyber.mil/pki-pke/tools-configuration-files. PKI can be found at https://crl.gds.disa.mil/.