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Guide to the Secure Configuration of Fedora

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Disable debug-shell SystemD Service

    SystemD's <code>debug-shell</code> service is intended to diagnose SystemD related boot issues with various <code>systemctl</code> commands. Once e...
    Rule Medium Severity
    Show

  • Disable Ctrl-Alt-Del Reboot Activation

    By default, <code>SystemD</code> will reboot the system if the <code>Ctrl-Alt-Del</code> key sequence is pressed. <br><br> To configure the system ...
    Rule High Severity
    Show

  • Verify that Interactive Boot is Disabled

    Fedora systems support an "interactive boot" option that can be used to prevent services from being started. On a Fedora system, interactive boot c...
    Rule Medium Severity
    Show

  • Require Authentication for Emergency Systemd Target

    Emergency mode is intended as a system recovery method, providing a single user root access to the system during a failed boot sequence. <br><br> B...
    Rule Medium Severity
    Show

  • Require Authentication for Single User Mode

    Single-user mode is intended as a system recovery method, providing a single user root access to the system by providing a boot option at startup. ...
    Rule Medium Severity
    Show

  • Configure Screen Locking

    When a user must temporarily leave an account logged-in, screen locking should be employed to prevent passersby from abusing the account. User educ...
    Group
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  • Configure Console Screen Locking

    A console screen locking mechanism is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the in...
    Group
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  • Install the screen Package

    To enable console screen locking, install the <code>screen</code> package. The <code>screen</code> package can be installed with the following comm...
    Rule Medium Severity
    Show

  • Install the tmux Package

    To enable console screen locking, install the <code>tmux</code> package. A session lock is a temporary action taken when a user stops work and move...
    Rule Medium Severity
    Show

  • Support session locking with tmux

    The <code>tmux</code> terminal multiplexer is used to implement automatic session locking. It should be started from <code>/etc/bashrc</code> or dr...
    Rule Medium Severity
    Show

  • Configure tmux to lock session after inactivity

    To enable console screen locking in <code>tmux</code> terminal multiplexer after a period of inactivity, the <code>lock-after-time</code> option ha...
    Rule Medium Severity
    Show

  • Configure the tmux Lock Command

    To enable console screen locking in <code>tmux</code> terminal multiplexer, the <code>vlock</code> command must be configured to be used as a locki...
    Rule Medium Severity
    Show

  • Configure the tmux lock session key binding

    To set a key binding for the screen locking in <code>tmux</code> terminal multiplexer, the <code>session-lock</code> command must be bound to a key...
    Rule Low Severity
    Show

  • Prevent user from disabling the screen lock

    The tmux terminal multiplexer is used to implement automatic session locking. It should not be listed in /etc/shells.
    Rule Low Severity
    Show

  • Hardware Tokens for Authentication

    The use of hardware tokens such as smart cards for system login provides stronger, two-factor authentication than using a username and password. I...
    Group
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  • OpenSC Smart Card Drivers

    Choose the Smart Card Driver in use by your organization. <br>For DoD, choose the <code>cac</code> driver. <br>If your driver is not listed and you...
    Value
    Show

  • Install the opensc Package For Multifactor Authentication

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

  • Install the pcsc-lite package

    The pcsc-lite package can be installed with the following command: 
    $ sudo dnf install pcsc-lite
    Rule Medium Severity
    Show

  • Install Smart Card Packages For Multifactor Authentication

    Configure the operating system to implement multifactor authentication by installing the required package with the following command: The <code>op...
    Rule Medium Severity
    Show

  • Enable the pcscd Service

    The pcscd service can be enabled with the following command: 
    $ sudo systemctl enable pcscd.service
    Rule Medium Severity
    Show

  • Configure opensc Smart Card Drivers

    The OpenSC smart card tool can auto-detect smart card drivers; however, setting the smart card drivers in use by your organization helps to prevent...
    Rule Medium Severity
    Show

  • Configure NSS DB To Use opensc

    The <code>opensc</code> module should be configured for use over the <code>Coolkey PKCS#11</code> module in the NSS database. To configure the NSS ...
    Rule Medium Severity
    Show

  • Force opensc To Use Defined Smart Card Driver

    The OpenSC smart card middleware can auto-detect smart card drivers; however by forcing the smart card driver in use by your organization, opensc w...
    Rule Medium Severity
    Show

  • Enable Smart Card Login

    To enable smart card authentication, consult the documentation at: <ul> </ul> For guidance on enabling SSH to authenticate against a Common Acce...
    Rule Medium Severity
    Show

  • Protect Accounts by Restricting Password-Based Login

    Conventionally, Unix shell accounts are accessed by providing a username and password to a login program, which tests these values for correctness ...
    Group
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  • Accounts Authorized Local Users on the Operating System

    List the user accounts that are authorized locally on the operating system. This list includes both users requried by the operating system and by t...
    Value
    Show

  • Ensure All Accounts on the System Have Unique User IDs

    Change user IDs (UIDs), or delete accounts, so each has a unique name.
    Rule Medium Severity
    Show

  • Only Authorized Local User Accounts Exist on Operating System

    Enterprise Application tends to use the server or virtual machine exclusively. Besides the default operating system user, there should be only auth...
    Rule Medium Severity
    Show

  • Ensure All Groups on the System Have Unique Group ID

    Change the group name or delete groups, so each has a unique id.
    Rule Medium Severity
    Show

  • Ensure All Groups on the System Have Unique Group Names

    Change the group name or delete groups, so each has a unique name.
    Rule Medium Severity
    Show

  • Set Account Expiration Parameters

    Accounts can be configured to be automatically disabled after a certain time period, meaning that they will require administrator interaction to be...
    Group
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  • number of days after the last login of the user when the user will be locked out

    'This option is specific for the auth or account phase. It specifies the number of days after the last login of the user when the user will be lock...
    Value
    Show

  • number of days after a password expires until the account is permanently disabled

    The number of days to wait after a password expires, until the account will be permanently disabled.
    Value
    Show

  • Set Account Expiration Following Inactivity

    To specify the number of days after a password expires (which signifies inactivity) until an account is permanently disabled, add or correct the fo...
    Rule Medium Severity
    Show

  • Assign Expiration Date to Emergency Accounts

    Emergency accounts are privileged accounts established in response to crisis situations where the need for rapid account activation is required. In...
    Rule Medium Severity
    Show

  • Assign Expiration Date to Temporary Accounts

    Temporary accounts are established as part of normal account activation procedures when there is a need for short-term accounts. In the event tempo...
    Rule Medium Severity
    Show

  • Ensure All Accounts on the System Have Unique Names

    Ensure accounts on the system have unique names. To ensure all accounts have unique names, run the following command: <pre>$ sudo getent passwd | ...
    Rule Medium Severity
    Show

  • Use Centralized and Automated Authentication

    Implement an automated system for managing user accounts that minimizes the risk of errors, either intentional or deliberate. This system should in...
    Rule Medium Severity
    Show

  • All Interactive User Home Directories Must Have mode 0750 Or Less Permissive

    Change the mode of interactive users home directories to <code>0750</code>. To change the mode of interactive users home directory, use the followi...
    Rule Medium Severity
    Show

  • Set Password Expiration Parameters

    The file <code>/etc/login.defs</code> controls several password-related settings. Programs such as <code>passwd</code>, <code>su</code>, and <code>...
    Group
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  • maximum password age

    Maximum age of password in days
    Value
    Show

  • minimum password age

    Minimum age of password in days
    Value
    Show

  • minimum password length

    Minimum number of characters in password
    Value
    Show

  • warning days before password expires

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

  • Set Password Maximum Age

    To specify password maximum age for new accounts, edit the file <code>/etc/login.defs</code> and add or correct the following line: <pre>PASS_MAX_D...
    Rule Medium Severity
    Show

  • Set Password Minimum Age

    To specify password minimum age for new accounts, edit the file <code>/etc/login.defs</code> and add or correct the following line: <pre>PASS_MIN_D...
    Rule Medium Severity
    Show

  • Set Password Minimum Length in login.defs

    To specify password length requirements for new accounts, edit the file <code>/etc/login.defs</code> and add or correct the following line: <pre>PA...
    Rule Medium Severity
    Show

  • Set Existing Passwords Maximum Age

    Configure non-compliant accounts to enforce a <xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_accounts_maximum_age_login_defs" use="le...
    Rule Medium Severity
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  • Ensure the default plugins for the audit dispatcher are Installed

    The audit-audispd-plugins package should be installed.
    Rule Medium Severity
    Show

  • Set Password Warning Age

    To specify how many days prior to password expiration that a warning will be issued to users, edit the file <code>/etc/login.defs</code> and add or...
    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.

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