Title

The operating system must protect the confidentiality of transmitted information. (Cat II impact)

Discussion

Ensuring the confidentiality of transmitted information requires the operating system take feasible measures to employ transmission layer security. This requirement applies to communications across internal and external networks.

Check Content

All remote sessions must be conducted via encrypted services and ports. Ask the operator to document all configured external ports and protocols. If any unencrypted connections are used, this is a finding.

Fix Text

All remote sessions must be conducted via SSH and IPsec. Ensure that SSH and IPsec are the only protocols used.

Additional Identifiers

Rule ID: SV-219979r854538_rule

Vulnerability ID: V-219979

Group Title: SRG-OS-000423

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.