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Guide to the Secure Configuration of Oracle Linux 8

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Configure SSSD LDAP Backend Client CA Certificate

    Configure SSSD to implement cryptography to protect the integrity of LDAP remote access sessions. By setting the <pre>ldap_tls_cacert</pre> option ...
    Rule Medium Severity
    Show

  • Configure SSSD LDAP Backend Client CA Certificate Location

    Configure SSSD to implement cryptography to protect the integrity of LDAP remote access sessions. By setting the <pre>ldap_tls_cacertdir</pre> opti...
    Rule Medium Severity
    Show

  • Configure SSSD LDAP Backend Client to Demand a Valid Certificate from the Server

    Configure SSSD to demand a valid certificate from the server to protect the integrity of LDAP remote access sessions by setting the <pre>ldap_tls_r...
    Rule Medium Severity
    Show

  • Configure SSSD LDAP Backend to Use TLS For All Transactions

    The LDAP client should be configured to implement TLS for the integrity of all remote LDAP authentication sessions. If the <code>id_provider</code>...
    Rule High Severity
    Show

  • USBGuard daemon

    The USBGuard daemon enforces the USB device authorization policy for all USB devices.
    Group
    Show

  • Install usbguard Package

    The usbguard package can be installed with the following command: 
    $ sudo yum install usbguard
    Rule Medium Severity
    Show

  • Log USBGuard daemon audit events using Linux Audit

    To configure USBGuard daemon to log via Linux Audit (as opposed directly to a file), <code>AuditBackend</code> option in <code>/etc/usbguard/usbgua...
    Rule Low Severity
    Show

  • Authorize Human Interface Devices in USBGuard daemon

    To allow authorization of Human Interface Devices (keyboard, mouse) by USBGuard daemon, add the line <code>allow with-interface match-all { 03:*:* ...
    Rule Medium Severity
    Show

  • Authorize Human Interface Devices and USB hubs in USBGuard daemon

    To allow authorization of USB devices combining human interface device and hub capabilities by USBGuard daemon, add the line <code>allow with-inter...
    Rule Medium Severity
    Show

  • Authorize USB hubs in USBGuard daemon

    To allow authorization of USB hub devices by USBGuard daemon, add line <code>allow with-interface match-all { 09:00:* }</code> to <code>/etc/usbgua...
    Rule Medium Severity
    Show

  • Generate USBGuard Policy

    By default USBGuard when enabled prevents access to all USB devices and this lead to inaccessible system if they use USB mouse/keyboard. To prevent...
    Rule Medium Severity
    Show

  • X Window System

    The X Window System implementation included with the system is called X.org.
    Group
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  • Disable X Windows

    Unless there is a mission-critical reason for the system to run a graphical user interface, ensure X is not set to start automatically at boot and ...
    Group
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  • Remove the X Windows Package Group

    By removing the xorg-x11-server-common package, the system no longer has X Windows installed. If X Windows is not installed then the system cannot ...
    Rule Medium Severity
    Show

  • Disable graphical user interface

    By removing the following packages, the system no longer has X Windows installed. <code>xorg-x11-server-Xorg xorg-x11-server-common xorg-x11-serv...
    Rule Medium Severity
    Show

  • Disable X Windows Startup By Setting Default Target

    Systems that do not require a graphical user interface should only boot by default into <code>multi-user.target</code> mode. This prevents accident...
    Rule Medium Severity
    Show

  • Introduction

    The purpose of this guidance is to provide security configuration recommendations and baselines for the Oracle Linux 8 operating system. Recommende...
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  • General Principles

    The following general principles motivate much of the advice in this guide and should also influence any configuration decisions that are not expli...
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  • Encrypt Transmitted Data Whenever Possible

    Data transmitted over a network, whether wired or wireless, is susceptible to passive monitoring. Whenever practical solutions for encrypting such ...
    Group
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  • Least Privilege

    Grant the least privilege necessary for user accounts and software to perform tasks. For example, <code>sudo</code> can be implemented to limit aut...
    Group
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