UBTU-24-600060 - Ubuntu 24.04 LTS must use DOD PKI-established certificate authorities (CAs) for verification of the establishment of protected sessions.

Information

Untrusted CAs can issue certificates, but they may be issued by organizations or individuals that seek to compromise DOD systems or by organizations with insufficient security controls. If the CA used for verifying the certificate is not a DOD-approved CA, trust of this CA has not been established.

The DOD will only accept PKI-certificates obtained from a DOD-approved internal or external certificate authority. Reliance on CAs for the establishment of secure sessions includes, for example, the use of SSL/TLS certificates.

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

Configure Ubuntu 24.04 LTS to use of DOD PKI-established CAs for verification of the establishment of protected sessions.

Edit the "/etc/ca-certificates.conf" file, adding the character "!" to the beginning of all uncommented lines that do not start with the "!" character with the following command:

$ sudo sed -i -E 's/^([^!#]+)/!\1/' /etc/ca-certificates.conf

Add at least one CA to the "/usr/local/share/ca-certificates" directory in the PEM format.

Update the "/etc/ssl/certs" directory with the following command:

$ sudo update-ca-certificates

Item Details

Audit Name: DISA Canonical Ubuntu 24.04 LTS STIG v1r5

Category: SYSTEM AND COMMUNICATIONS PROTECTION

Plugin: Unix

Control ID: 84fc728d4db2c602ce85455def67a499c00bcefcd46a15fc2c447a5aa582bd94

Detections

Analytics

UBTU-24-600060 - Ubuntu 24.04 LTS must use DOD PKI-established certificate authorities (CAs) for verification of the establishment of protected sessions.

Information

Solution

See Also

Item Details