Skip to content
ATO Pathways
  Log In

Guide to the Secure Configuration of Red Hat Enterprise Linux 8

Rules, Groups, and Values defined within the XCCDF Benchmark

  • System Settings

    Contains rules that check correct system settings.
    Group
    Show

  • Installing and Maintaining Software

    The following sections contain information on security-relevant choices during the initial operating system installation process and the setup of s...
    Group
    Show

  • Prefer to use a 64-bit Operating System when supported

    Prefer installation of 64-bit operating systems when the CPU supports it.
    Rule Medium Severity
    Show

  • System and Software Integrity

    System and software integrity can be gained by installing antivirus, increasing system encryption strength with FIPS, verifying installed software,...
    Group
    Show

  • Software Integrity Checking

    Both the AIDE (Advanced Intrusion Detection Environment) software and the RPM package management system provide mechanisms for verifying the integr...
    Group
    Show

  • Integrity Scan Notification Email Address

    Specify the email address for designated personnel if baseline configurations are changed in an unauthorized manner.
    Value
    Show

  • Verify Integrity with RPM

    The RPM package management system includes the ability to verify the integrity of installed packages by comparing the installed files with informat...
    Group
    Show

  • UEFI GRUB2 bootloader configuration

    UEFI GRUB2 bootloader configuration
    Group
    Show

  • net.ipv6.conf.all.accept_ra_rtr_pref

    Accept router preference in router advertisements?
    Value
    Show

  • net.ipv6.conf.all.accept_ra

    Accept all router advertisements?
    Value
    Show

  • net.ipv6.conf.all.accept_redirects

    Toggle ICMP Redirect Acceptance
    Value
    Show

  • Ensure PAM Displays Last Logon/Access Notification

    To configure the system to notify users of last logon/access using <code>pam_lastlog</code>, add or correct the <code>pam_lastlog</code> settings i...
    Rule Low Severity
    Show

  • Set Up a Private Namespace in PAM Configuration

    To setup a private namespace add the following line to /etc/pam.d/login: 
    session    required     pam_namespace.so
    Rule Low Severity
    Show

  • Set Lockouts for Failed Password Attempts

    The <code>pam_faillock</code> PAM module provides the capability to lock out user accounts after a number of failed login attempts. Its documentati...
    Group
    Show

  • fail_deny

    Number of failed login attempts before account lockout
    Value
    Show

  • faillock directory

    The directory where the user files with the failure records are kept
    Value
    Show

  • fail_interval

    Interval for counting failed login attempts before account lockout
    Value
    Show

  • Set the GNOME3 Login Warning Banner Text

    In the default graphical environment, configuring the login warning banner text in the GNOME Display Manager's login screen can be configured on th...
    Rule Medium Severity
    Show

  • Disallow Configuration to Bypass Password Requirements for Privilege Escalation

    Verify the operating system is not configured to bypass password requirements for privilege escalation. Check the configuration of the "/etc/pam.d/...
    Rule Medium Severity
    Show

  • SSH client RekeyLimit - time

    Specify the time component of the rekey limit. The session key is renegotiated after the defined amount of time passes. The number is followed by u...
    Value
    Show

  • Verify and Correct File Permissions with RPM

    The RPM package management system can check file access permissions of installed software packages, including many that are important to system sec...
    Rule High Severity
    Show

  • Verify Integrity with AIDE

    AIDE conducts integrity checks by comparing information about files with previously-gathered information. Ideally, the AIDE database is created imm...
    Group
    Show

  • Install AIDE

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

  • Build and Test AIDE Database

    Run the following command to generate a new database: <pre>$ sudo /usr/sbin/aide --init</pre> By default, the database will be written to the fil...
    Rule Medium Severity
    Show

  • The system-provided crypto policies

    Specify the crypto policy for the system.
    Value
    Show

  • System Cryptographic Policies

    Linux has the capability to centrally configure cryptographic polices. The command <code>update-crypto-policies</code> is used to set the policy ap...
    Group
    Show

  • Configure AIDE to Verify the Audit Tools

    The operating system file integrity tool must be configured to protect the integrity of the audit tools.
    Rule Medium Severity
    Show

  • Configure Periodic Execution of AIDE

    At a minimum, AIDE should be configured to run a weekly scan. To implement a daily execution of AIDE at 4:05am using cron, add the following line t...
    Rule Medium Severity
    Show

  • Configure Notification of Post-AIDE Scan Details

    AIDE should notify appropriate personnel of the details of a scan after the scan has been run. If AIDE has already been configured for periodic exe...
    Rule Medium Severity
    Show

  • Configure AIDE to Use FIPS 140-2 for Validating Hashes

    By default, the <code>sha512</code> option is added to the <code>NORMAL</code> ruleset in AIDE. If using a custom ruleset or the <code>sha512</code...
    Rule Medium Severity
    Show

  • Configure AIDE to Verify Access Control Lists (ACLs)

    By default, the <code>acl</code> option is added to the <code>FIPSR</code> ruleset in AIDE. If using a custom ruleset or the <code>acl</code> optio...
    Rule Low Severity
    Show

  • Configure AIDE to Verify Extended Attributes

    By default, the <code>xattrs</code> option is added to the <code>FIPSR</code> ruleset in AIDE. If using a custom ruleset or the <code>xattrs</code>...
    Rule Low Severity
    Show

  • SSH client RekeyLimit - size

    Specify the size component of the rekey limit. This limit signifies amount of data. After this amount of data is transferred through the connection...
    Value
    Show

  • conman_can_network SELinux Boolean

    default - Default SELinux boolean setting.
    on - SELinux boolean is enabled.
    off - SELinux boolean is disabled.
    Value
    Show

  • Audit Tools Must Be Group-owned by Root

    Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the use...
    Rule Medium Severity
    Show

  • Audit Tools Must Be Owned by Root

    Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the use...
    Rule Medium Severity
    Show

  • Audit Tools Must Have a Mode of 0755 or Less Permissive

    Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the use...
    Rule Medium Severity
    Show

  • Federal Information Processing Standard (FIPS)

    The Federal Information Processing Standard (FIPS) is a computer security standard which is developed by the U.S. Government and industry working g...
    Group
    Show

  • Enable Dracut FIPS Module

    To enable FIPS mode, run the following command: <pre>fips-mode-setup --enable</pre> To enable FIPS, the system requires that the <code>fips</code> ...
    Rule High Severity
    Show

  • Enable FIPS Mode

    To enable FIPS mode, run the following command: <pre>fips-mode-setup --enable</pre> <br> The <code>fips-mode-setup</code> command will configure t...
    Rule High Severity
    Show

  • Ensure '/etc/system-fips' exists

    On a system where FIPS mode is enabled, <code>/etc/system-fips</code> must exist. To enable FIPS mode, run the following command: <pre>fips-mode-se...
    Rule High Severity
    Show

  • Set kernel parameter 'crypto.fips_enabled' to 1

    System running in FIPS mode is indicated by kernel parameter <code>'crypto.fips_enabled'</code>. This parameter should be set to <code>1</code> in ...
    Rule High Severity
    Show

  • Install crypto-policies package

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

  • Configure BIND to use System Crypto Policy

    Crypto Policies provide a centralized control over crypto algorithms usage of many packages. BIND is supported by crypto policy, but the BIND confi...
    Rule High Severity
    Show

  • Configure System Cryptography Policy

    To configure the system cryptography policy to use ciphers only from the <code><xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_system_...
    Rule High Severity
    Show

  • Configure GnuTLS library to use DoD-approved TLS Encryption

    Crypto Policies provide a centralized control over crypto algorithms usage of many packages. GnuTLS is supported by system crypto policy, but the G...
    Rule Medium Severity
    Show

  • Configure Kerberos to use System Crypto Policy

    Crypto Policies provide a centralized control over crypto algorithms usage of many packages. Kerberos is supported by crypto policy, but it's confi...
    Rule High Severity
    Show

  • Configure Libreswan to use System Crypto Policy

    Crypto Policies provide a centralized control over crypto algorithms usage of many packages. Libreswan is supported by system crypto policy, but th...
    Rule High Severity
    Show

  • Configure OpenSSL library to use System Crypto Policy

    Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSL is supported by crypto policy, but the OpenSSL...
    Rule Medium Severity
    Show

  • Configure OpenSSL library to use TLS Encryption

    Crypto Policies are means of enforcing certain cryptographic settings for selected applications including OpenSSL. OpenSSL is by default configured...
    Rule Medium Severity
    Show

Node 2

siemur/test-space

The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.

Capacity
Modules