SLEM 5 must have SSH installed to protect the confidentiality and integrity of transmitted information.

Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read or altered.

This requirement applies to both internal and external networks and all types of information system components from which information can be transmitted (e.g., servers, mobile devices, notebook computers, printers, copiers, scanners, and facsimile machines). Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification.

Protecting the confidentiality and integrity of organizational information can be accomplished by physical means (e.g., employing physical distribution systems) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, logical means (cryptography) do not have to be employed, and vice versa.

Verify the SSH package is installed by using the following command:

     > zypper info openssh | grep -i installed
     Name           : openssh
     Version        : 8.4p1-3.9.1
     Arch           : X86_64
     Vendor         : SUSE LLC <https://www.suse.com>
     Installed Size : 0 B
     Installed      : Yes 
     Status         : up-to-date

If the "openssh" package is not installed, this is a finding.

Install the "openssh" package on SLEM 5 with the following command:

     > sudo transactional-update pkg install openssh

Reboot the system for the changes to take effect:

     > sudo reboot