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CUSP - Common User Security Profile for Fedora Workstation

Rules and Groups employed by this XCCDF Profile

  • Set PAM''s Password Hashing Algorithm - password-auth

    The PAM system service can be configured to only store encrypted representations of passwords. In <code>/etc/pam.d/password-auth</code>, the <code>password</code> section of the file controls which...
    Rule Medium Severity
    Show

  • Set PAM''s Password Hashing Algorithm

    The PAM system service can be configured to only store encrypted representations of passwords. In "/etc/pam.d/system-auth", the <code>password</code> section of the file controls which PAM modules ...
    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 using the <code>/etc/passwd</code> and <code>/etc/...
    Group
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  • 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

  • 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 become usable again. Expiration of accounts after in...
    Group
    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 | awk -F: '{ print $1}' | uniq -d</pre> If a usernam...
    Rule Medium Severity
    Show

  • Verify Proper Storage and Existence of Password Hashes

    By default, password hashes for local accounts are stored in the second field (colon-separated) in <code>/etc/shadow</code>. This file should be readable only by processes running with root credent...
    Group
    Show

  • All GIDs referenced in /etc/passwd must be defined in /etc/group

    Add a group to the system for each GID referenced without a corresponding group.
    Rule Low Severity
    Show

  • Prevent Login to Accounts With Empty Password

    If an account is configured for password authentication but does not have an assigned password, it may be possible to log into the account without authentication. Remove any instances of the <code>...
    Rule High Severity
    Show

  • Ensure There Are No Accounts With Blank or Null Passwords

    Check the "/etc/shadow" file for blank passwords with the following command: <pre>$ sudo awk -F: '!$2 {print $1}' /etc/shadow</pre> If the command returns any results, this is a finding. Configure ...
    Rule High Severity
    Show

  • Restrict Root Logins

    Direct root logins should be allowed only for emergency use. In normal situations, the administrator should access the system via a unique unprivileged account, and then use <code>su</code> or <cod...
    Group
    Show

  • Verify Only Root Has UID 0

    If any account other than root has a UID of 0, this misconfiguration should be investigated and the accounts other than root should be removed or have their UID changed. <br> If the account is asso...
    Rule High Severity
    Show

  • Verify Root Has A Primary GID 0

    The root user should have a primary group of 0.
    Rule High Severity
    Show

  • Enforce usage of pam_wheel for su authentication

    To ensure that only users who are members of the <code>wheel</code> group can run commands with altered privileges through the <code>su</code> command, make sure that the following line exists in t...
    Rule Medium Severity
    Show

  • Secure Session Configuration Files for Login Accounts

    When a user logs into a Unix account, the system configures the user's session by reading a number of files. Many of these files are located in the user's home directory, and may have weak permissi...
    Group
    Show

  • Set Interactive Session Timeout

    Setting the <code>TMOUT</code> option in <code>/etc/profile</code> ensures that all user sessions will terminate based on inactivity. The value of TMOUT should be exported and read only. The <code>...
    Rule Medium Severity
    Show

  • User Initialization Files Must Not Run World-Writable Programs

    Set the mode on files being executed by the user initialization files with the following command: 
    $ sudo chmod o-w FILE
    Rule Medium Severity
    Show

  • All Interactive Users Home Directories Must Exist

    Create home directories to all local interactive users that currently do not have a home directory assigned. Use the following commands to create the user home directory assigned in <code>/etc/pass...
    Rule Medium Severity
    Show

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