When the Jamf Pro EMM server cannot establish a connection to determine the validity of a certificate, the server must not have the option to accept the certificate.

When a Jamf Pro EMM server accepts an unverified certificate, it may be trusting a malicious actor. For example, messages signed with an invalid certificate may contain links to malware, which could lead to the installation or distribution of that malware on DoW information systems, leading to compromise of DoW sensitive information and other attacks.

SFR ID: FIA_X509_EXT.2.2

Validate the Jamf Pro EMM server has been configured to not accept a certificate if the certificate cannot be validated.

1. Open the Jamf Pro EMM console. 2. Open "Settings". 3. Select "User-Initiated Enrollment". 4. Under the General tab, verify "Use a third-party signing certificate" is selected. 5. Verify the name and certificate extension of the DoW p12 certificate is listed.

If the Jamf Pro EMM server has been not been configured to not accept a certificate if the certificate cannot be validated, this is a finding.

Configure the Jamf Pro EMM server to not accept a certificate if the certificate cannot be validated.

1. Open the Jamf Pro EMM console. 2. Open "Settings". 3. Select "User-Initiated Enrollment". 4. Under the General tab, select "Use a third-party signing certificate". 5. Drag and drop the DoW p12 certificate. 6. Click "Save".