V-215289

Discussion

Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Encryption provides a means to secure the remote connection to prevent unauthorized access to the data traversing the remote access connection (e.g., RDP), thereby providing a degree of confidentiality. The encryption strength of a mechanism is selected based on the security categorization of the information.

Check Content

From the command prompt, run the following command:
# grep ^Protocol /etc/ssh/sshd_config

The above command should yield the following output:
Protocol 2

If the above command does not show the ssh server supporting "Protocol 2" only, this is a finding.