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Guide to the Secure Configuration of Fedora

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Ensure that System Accounts Are Locked

    Some accounts are not associated with a human user of the system, and exist to perform some administrative functions. An attacker should not be abl...
    Rule Medium Severity
  • Restrict Web Browser Use for Administrative Accounts

    Enforce policy requiring administrative accounts use web browsers only for local service administration.
    Rule Unknown Severity
  • Ensure that System Accounts Do Not Run a Shell Upon Login

    Some accounts are not associated with a human user of the system, and exist to perform some administrative functions. Should an attacker be able to...
    Rule Medium Severity
  • Restrict Serial Port Root Logins

    To restrict root logins on serial ports, ensure lines of this form do not appear in /etc/securetty:
    ttyS0
    ttyS1
    Rule Medium Severity
  • Root Path Must Be Vendor Default

    Assuming root shell is bash, edit the following files: <pre>~/.profile</pre> <pre>~/.bashrc</pre> Change any <code>PATH</code> variables to the ven...
    Rule Unknown Severity
  • Restrict Virtual Console Root Logins

    To restrict root logins through the (deprecated) virtual console devices, ensure lines of this form do not appear in <code>/etc/securetty</code>: <...
    Rule Medium Severity
  • 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> comm...
    Rule Medium Severity
  • 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...
    Group
  • Maximum login attempts delay

    Maximum time in seconds between fail login attempts before re-prompting.
    Value
  • Maximum concurrent login sessions

    Maximum number of concurrent sessions by a user
    Value
  • Account Inactivity Timeout (seconds)

    In an interactive shell, the value is interpreted as the number of seconds to wait for input after issuing the primary prompt. Bash terminates afte...
    Value
  • Interactive users initialization files

    'A regular expression describing a list of file names for files that are sourced at login time for interactive users'
    Value
  • Ensure Home Directories are Created for New Users

    All local interactive user accounts, upon creation, should be assigned a home directory. <br><br> Configure the operating system to assign home dir...
    Rule Medium Severity
  • Ensure the Logon Failure Delay is Set Correctly in login.defs

    To ensure the logon failure delay controlled by <code>/etc/login.defs</code> is set properly, add or correct the <code>FAIL_DELAY</code> setting in...
    Rule Medium Severity
  • Limit the Number of Concurrent Login Sessions Allowed Per User

    Limiting the number of allowed users and sessions per user can limit risks related to Denial of Service attacks. This addresses concurrent sessions...
    Rule Low Severity
  • Configure Polyinstantiation of /tmp Directories

    To configure polyinstantiated /tmp directories, first create the parent directories which will hold the polyinstantiation child directories. Use th...
    Rule Low Severity
  • Configure Polyinstantiation of /var/tmp Directories

    To configure polyinstantiated /tmp directories, first create the parent directories which will hold the polyinstantiation child directories. Use th...
    Rule Low Severity
  • 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
  • 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 t...
    Rule Medium Severity
  • All Interactive User Home Directories Must Be Group-Owned By The Primary Group

    Change the group owner of interactive users home directory to the group found in <code>/etc/passwd</code>. To change the group owner of interactive...
    Rule Medium Severity

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