Skip to content
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 software updates.
    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, enabling SELinux, installing an Intrusion Prevent...
    Group
    Show

  • Software Integrity Checking

    Both the AIDE (Advanced Intrusion Detection Environment) software and the RPM package management system provide mechanisms for verifying the integrity of installed software. AIDE uses snapshots of ...
    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 information about the files taken from the package metadat...
    Group
    Show

  • HTTPD Log Level

    The setting for LogLevel in /etc/httpd/conf/httpd.conf
    Value
    Show

  • Maximum KeepAlive Requests for HTTPD

    The setting for MaxKeepAliveRequests in httpd.conf
    Value
    Show

  • Enable the LDAP Client For Use in Authconfig

    To determine if LDAP is being used for authentication, use the following command: <pre>$ sudo grep -i useldapauth /etc/sysconfig/authconfig</pre> <br> <br> If <code>USELDAPAUTH=yes<...
    Rule Medium Severity
    Show

  • warning days before password expires

    The number of days' warning given before a password expires.
    Value
    Show

  • Disable Dovecot

    If the system does not need to operate as an IMAP or POP3 server, the dovecot software should be disabled and removed.
    Group
    Show

  • Remove NIS Client

    The Network Information Service (NIS), formerly known as Yellow Pages, is a client-server directory service protocol used to distribute system configuration files. The NIS client (<code>ypbind</cod...
    Rule Unknown Severity
    Show

  • Uninstall ypserv Package

    The ypserv package can be removed with the following command: 
    $ sudo yum erase ypserv
    Rule High Severity
    Show

  • Disable ypbind Service

    The <code>ypbind</code> service, which allows the system to act as a client in a NIS or NIS+ domain, should be disabled. The <code>ypbind</code> service can be disabled with the following command:...
    Rule Medium Severity
    Show

  • Disable ypserv Service

    The <code>ypserv</code> service, which allows the system to act as a client in a NIS or NIS+ domain, should be disabled. The <code>ypserv</code> service can be disabled with the following command:...
    Rule Medium Severity
    Show

  • Rlogin, Rsh, and Rexec

    The Berkeley r-commands are legacy services which allow cleartext remote access and have an insecure trust model.
    Group
    Show

  • Uninstall rsh-server Package

    The rsh-server package can be removed with the following command: 
    $ sudo yum erase rsh-server
    Rule High Severity
    Show

  • Uninstall rsh Package

    The rsh package contains the client commands for the rsh services
    Rule Unknown Severity
    Show

  • The Installed Operating System Is Vendor Supported

    The installed operating system must be maintained by a vendor. Red Hat Enterprise Linux is supported by Red Hat, Inc. As the Red Hat Enterprise Linux vendor, Red Hat, Inc. is responsible for provi...
    Rule High Severity
    Show

  • Endpoint Protection Software

    Endpoint protection security software that is not provided or supported by Red Hat can be installed to provide complementary or duplicative security capabilities to those provided by the base pla...
    Group
    Show

  • Install the Asset Configuration Compliance Module (ACCM)

    Install the Asset Configuration Compliance Module (ACCM).
    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> option is missing, add <code>sha512</code> to th...
    Rule Medium Severity
    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 file <code>/var/lib/aide/aide.db.new.gz</code>. Sto...
    Rule Medium Severity
    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 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 execution in <code>/etc/crontab</code>, append the fo...
    Rule Medium Severity
    Show

  • Remote Login Banner Verbiage

    Enter an appropriate login banner for your organization. Please note that new lines must be expressed by the '\n' character and special characters like parentheses and quotation marks must be escap...
    Value
    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> option is missing, add <code>xattrs</code> to the...
    Rule Low Severity
    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 user accessing the tools, and the corresponding right...
    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 user accessing the tools, and the corresponding right...
    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 user accessing the tools, and the corresponding right...
    Rule Medium Severity
    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> module is added in <code>dracut</code> configurati...
    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 FIPS mode. To enable FIPS mode, run the following ...
    Rule High Severity
    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 applicable for the various cryptographic back-ends, ...
    Group
    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, the session key is renegotiated. The number is f...
    Value
    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 units such as H or M for hours or minutes. Note tha...
    Value
    Show

  • The system-provided crypto policies

    Specify the crypto policy for the system.
    Value
    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_crypto_policy" use="legacy"></xccdf-1.2:sub></code...
    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 GnuTLS configuration may be set up to ignore it. T...
    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 configuration may be set up to ignore it. To check that...
    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 configuration may be set up to ignore it. To chec...
    Rule Medium Severity
    Show

  • Configure SSH to use System Crypto Policy

    Crypto Policies provide a centralized control over crypto algorithms usage of many packages. SSH is supported by crypto policy, but the SSH configuration may be set up to ignore it. To check that C...
    Rule Medium Severity
    Show

  • Harden OpenSSL Crypto Policy

    Crypto Policies are means of enforcing certain cryptographic settings for selected applications including OpenSSL. OpenSSL is by default configured to modify its configuration based on currently co...
    Rule Medium Severity
    Show

  • Harden SSH client Crypto Policy

    Crypto Policies are means of enforcing certain cryptographic settings for selected applications including OpenSSH client. To override the system wide crypto policy for Openssh client, place a file ...
    Rule Medium Severity
    Show

  • Configure SSH Client to Use FIPS 140-2 Validated Ciphers: openssh.config

    Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be set up incorrectly. ...
    Rule High Severity
    Show

  • Harden SSHD Crypto Policy

    Crypto Policies are means of enforcing certain cryptographic settings for selected applications including OpenSSH server. The SSHD service is by default configured to modify its configuration based...
    Rule Medium Severity
    Show

  • Configure SSH Server to Use FIPS 140-2 Validated MACs: opensshserver.config

    Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be set up incorrectly. ...
    Rule Medium Severity
    Show

  • OpenSSL uses strong entropy source

    By default, OpenSSL doesn't always use a SP800-90A compliant random number generator. A way to configure OpenSSL to always use a strong source is to setup a wrapper that defines a shell function th...
    Rule Medium Severity
    Show

  • Operating System Vendor Support and Certification

    The assurance of a vendor to provide operating system support and maintenance for their product is an important criterion to ensure product stability and security over the life of the product. A ce...
    Group
    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