All OL 8 networked systems must have SSH installed.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-248866	SRG-OS-000423-GPOS-00187	OL08-00-040159	SV-248866r958908_rule	2025-02-20	2

Description
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

Description

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

ℹ️ Check
Verify SSH is installed with the following command: $ sudo yum list installed openssh-server openssh-server.x86_64 8.0p1-5.el8 @anaconda If the "SSH server" package is not installed, this is a finding.

✔️ Fix
Install SSH packages onto the host with the following command: $ sudo yum install openssh-server.x86_64