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Guide to the Secure Configuration of Red Hat Virtualization 4

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Install Virus Scanning Software

    Virus scanning software can be used to protect a system from penetration from computer viruses and to limit their spread through intermediate syste...
    Rule High Severity
  • Install Intrusion Detection Software

    The base Red Hat Virtualization 4 platform already includes a sophisticated auditing system that can detect intruder activity, as well as SELinux, ...
    Rule High Severity
  • McAfee Endpoint Security Software

    In DoD environments, McAfee Host-based Security System (HBSS) and VirusScan Enterprise for Linux (VSEL) is required to be installed on all systems.
    Group
  • The age of McAfee defintion file before requiring updating

    Specify the amount of time (in seconds) before McAfee definition files need to be updated.
    Value
  • Install McAfee Virus Scanning Software

    Install McAfee VirusScan Enterprise for Linux antivirus software which is provided for DoD systems and uses signatures to search for the presence o...
    Rule High Severity
  • Install the Host Intrusion Prevention System (HIPS) Module

    Install the McAfee Host Intrusion Prevention System (HIPS) Module if it is absolutely necessary. If SELinux is enabled, do not install or enable th...
    Rule Medium Severity
  • Disk Partitioning

    To ensure separation and protection of data, there are top-level system directories which should be placed on their own physical partition or logic...
    Group
  • Encrypt Partitions

    Red Hat Virtualization 4 natively supports partition encryption through the Linux Unified Key Setup-on-disk-format (LUKS) technology. The easiest w...
    Rule High Severity
  • Ensure /home Located On Separate Partition

    If user home directories will be stored locally, create a separate partition for <code>/home</code> at installation time (or migrate it later using...
    Rule Low Severity
  • Ensure /srv Located On Separate Partition

    If a file server (FTP, TFTP...) is hosted locally, create a separate partition for <code>/srv</code> at installation time (or migrate it later usin...
    Rule Unknown Severity
  • Ensure /tmp Located On Separate Partition

    The <code>/tmp</code> directory is a world-writable directory used for temporary file storage. Ensure it has its own partition or logical volume at...
    Rule Low Severity
  • Ensure /var Located On Separate Partition

    The <code>/var</code> directory is used by daemons and other system services to store frequently-changing data. Ensure that <code>/var</code> has i...
    Rule Low Severity
  • Ensure /var/log Located On Separate Partition

    System logs are stored in the <code>/var/log</code> directory. Ensure that <code>/var/log</code> has its own partition or logical volume at instal...
    Rule Low Severity
  • Ensure /var/log/audit Located On Separate Partition

    Audit logs are stored in the <code>/var/log/audit</code> directory. Ensure that <code>/var/log/audit</code> has its own partition or logical volum...
    Rule Low Severity
  • GNOME Desktop Environment

    GNOME is a graphical desktop environment bundled with many Linux distributions that allow users to easily interact with the operating system graphi...
    Group
  • Remove the GDM Package Group

    By removing the <code>gdm</code> package, the system no longer has GNOME installed installed. If X Windows is not installed then the system canno...
    Rule Medium Severity
  • Configure GNOME Login Screen

    In the default GNOME desktop, the login is displayed after system boot and can display user accounts, allow users to reboot the system, and allow u...
    Group
  • Disable XDMCP in GDM

    XDMCP is an unencrypted protocol, and therefore, presents a security risk, see e.g. <a href="https://help.gnome.org/admin/gdm/stable/security.html....
    Rule High Severity
  • GNOME Media Settings

    GNOME media settings that apply to the graphical interface.
    Group
  • GNOME Network Settings

    GNOME network settings that apply to the graphical interface.
    Group
  • GNOME Remote Access Settings

    GNOME remote access settings that apply to the graphical interface.
    Group
  • Configure GNOME Screen Locking

    In the default GNOME3 desktop, the screen can be locked by selecting the user name in the far right corner of the main panel and selecting <b>Lock<...
    Group
  • Screensaver Inactivity timeout

    Choose allowed duration (in seconds) of inactive graphical sessions
    Value
  • Screensaver Lock Delay

    Choose allowed duration (in seconds) after a screensaver becomes active before displaying an authentication prompt
    Value
  • GNOME System Settings

    GNOME provides configuration and functionality to a graphical desktop environment that changes grahical configurations or allow a user to perform a...
    Group
  • SAP Specific Requirement

    SAP (Systems, Applications and Products in Data Processing) is enterprise software to manage business operations and customer relations. The follow...
    Group
  • Sudo

    <code>Sudo</code>, which stands for "su 'do'", provides the ability to delegate authority to certain users, groups of users, or system administrato...
    Group
  • Group name dedicated to the use of sudo

    Specify the name of the group that should own /usr/bin/sudo.
    Value
  • Sudo - logfile value

    Specify the sudo logfile to use. The default value used here matches the example location from CIS, which uses /var/log/sudo.log.
    Value
  • Sudo - passwd_timeout value

    Defines the number of minutes before the <code>sudo</code> password prompt times out. Defining 0 means no timeout. The default timeout value is 5 m...
    Value
  • Sudo - timestamp_timeout value

    Defines the number of minutes that can elapse before <code>sudo</code> will ask for a passwd again. If set to a value less than 0 the user's time s...
    Value
  • Sudo - umask value

    Specify the sudo umask to use. The actual umask value that is used is the union of the user's umask and the sudo umask. The default sudo umask is 0...
    Value
  • Install sudo Package

    The sudo package can be installed with the following command:
    $ sudo yum install sudo
    Rule Medium Severity
  • Ensure Privileged Escalated Commands Cannot Execute Other Commands - sudo NOEXEC

    The sudo <code>NOEXEC</code> tag, when specified, prevents user executed commands from executing other commands, like a shell for example. This sho...
    Rule High Severity
  • Ensure Only Users Logged In To Real tty Can Execute Sudo - sudo requiretty

    The sudo <code>requiretty</code> tag, when specified, will only execute sudo commands from users logged in to a real tty. This should be enabled by...
    Rule Medium Severity
  • Ensure Only Users Logged In To Real tty Can Execute Sudo - sudo use_pty

    The sudo <code>use_pty</code> tag, when specified, will only execute sudo commands from users logged in to a real tty. This should be enabled by ma...
    Rule Medium Severity
  • Ensure Sudo Logfile Exists - sudo logfile

    A custom log sudo file can be configured with the 'logfile' tag. This rule configures a sudo custom logfile at the default location suggested by CI...
    Rule Low Severity
  • Ensure Users Re-Authenticate for Privilege Escalation - sudo !authenticate

    The sudo <code>!authenticate</code> option, when specified, allows a user to execute commands using sudo without having to authenticate. This shoul...
    Rule Medium Severity
  • Ensure Users Re-Authenticate for Privilege Escalation - sudo NOPASSWD

    The sudo <code>NOPASSWD</code> tag, when specified, allows a user to execute commands using sudo without having to authenticate. This should be dis...
    Rule Medium Severity
  • Ensure Users Re-Authenticate for Privilege Escalation - sudo

    The sudo <code>NOPASSWD</code> and <code>!authenticate</code> option, when specified, allows a user to execute commands using sudo without having t...
    Rule Medium Severity
  • Only the VDSM User Can Use sudo NOPASSWD

    The sudo <code>NOPASSWD</code> tag, when specified, allows a user to execute commands using sudo without having to authenticate. Only the <code>vds...
    Rule Medium Severity
  • Explicit arguments in sudo specifications

    All commands in the sudoers file must strictly specify the arguments allowed to be used for a given user. If the command is supposed to be executed...
    Rule Medium Severity
  • Don't define allowed commands in sudoers by means of exclusion

    Policies applied by sudo through the sudoers file should not involve negation. Each user specification in the <code>sudoers</code> file contains a...
    Rule Medium Severity
  • Don't target root user in the sudoers file

    The targeted users of a user specification should be, as much as possible, non privileged users (i.e.: non-root). User specifications have to expl...
    Rule Medium Severity
  • System Tooling / Utilities

    The following checks evaluate the system for recommended base packages -- both for installation and removal.
    Group
  • Install binutils Package

    The binutils package can be installed with the following command:
    $ sudo yum install binutils
    Rule Medium Severity
  • Ensure gnutls-utils is installed

    The gnutls-utils package can be installed with the following command:
    $ sudo yum install gnutls-utils
    Rule Medium Severity
  • Install libcap-ng-utils Package

    The libcap-ng-utils package can be installed with the following command:
    $ sudo yum install libcap-ng-utils
    Rule Medium Severity
  • Ensure nss-tools is installed

    The nss-tools package can be installed with the following command:
    $ sudo yum install nss-tools
    Rule Medium Severity
  • Install openscap-scanner Package

    The openscap-scanner package can be installed with the following command:
    $ sudo yum install openscap-scanner
    Rule Medium Severity

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