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RHEL 8 must use a Linux Security Module configured to enforce limits on system services.


Overview

Finding ID Version Rule ID IA Controls Severity
V-230240 RHEL-08-010170 SV-230240r627750_rule Medium
Description
Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed. Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Security functionality includes, but is not limited to, establishing system accounts, configuring access authorizations (i.e., permissions, privileges), setting events to be audited, and setting intrusion detection parameters. This requirement applies to operating systems performing security function verification/testing and/or systems and environments that require this functionality.
STIG Date
Red Hat Enterprise Linux 8 Security Technical Implementation Guide 2022-06-15

Details

Check Text ( C-32909r567466_chk )
Verify the operating system verifies correct operation of all security functions.

Check if "SELinux" is active and in "Enforcing" mode with the following command:

$ sudo getenforce
Enforcing

If "SELinux" is not active and not in "Enforcing" mode, this is a finding.
Fix Text (F-32884r567467_fix)
Configure the operating system to verify correct operation of all security functions.

Set the "SELinux" status and the "Enforcing" mode by modifying the "/etc/selinux/config" file to have the following line:

SELINUX=enforcing

A reboot is required for the changes to take effect.