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All OL 8 networked systems must have and implement SSH to protect the confidentiality and integrity of transmitted and received information, as well as information during preparation for transmission.


Finding ID Version Rule ID IA Controls Severity
V-248867 OL08-00-040160 SV-248867r853876_rule Medium
Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected communications can be intercepted and 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. Satisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188, SRG-OS-000425-GPOS-00189, SRG-OS-000426-GPOS-00190
Oracle Linux 8 Security Technical Implementation Guide 2022-12-06


Check Text ( C-52301r780165_chk )
Verify SSH is loaded and active with the following command:

$ sudo systemctl status sshd

sshd.service - OpenSSH server daemon
Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled)
Active: active (running) since Tue 2015-11-17 15:17:22 EST; 4 weeks 0 days ago
Main PID: 1348 (sshd)
CGroup: /system.slice/sshd.service
1053 /usr/sbin/sshd -D

If "sshd" does not show a status of "active" and "running", this is a finding.
Fix Text (F-52255r780166_fix)
Configure the SSH service to automatically start after reboot with the following command:

$ sudo systemctl enable sshd.service