Guide to the Secure Configuration of Fedora
Rules, Groups, and Values defined within the XCCDF Benchmark
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Verify ownership of System Login Banner
To properly set the owner of/etc/issue
, run the command:$ sudo chown root /etc/issue
Rule Medium Severity -
Verify ownership of System Login Banner for Remote Connections
To properly set the owner of/etc/issue.net
, run the command:$ sudo chown root /etc/issue.net
Rule Medium Severity -
Verify ownership of Message of the Day Banner
To properly set the owner of/etc/motd
, run the command:$ sudo chown root /etc/motd
Rule Medium Severity -
Verify permissions on System Login Banner
To properly set the permissions of/etc/issue
, run the command:$ sudo chmod 0644 /etc/issue
Rule Medium Severity -
Verify permissions on System Login Banner for Remote Connections
To properly set the permissions of/etc/issue.net
, run the command:$ sudo chmod 0644 /etc/issue.net
Rule Medium Severity -
Verify permissions on Message of the Day Banner
To properly set the permissions of/etc/motd
, run the command:$ sudo chmod 0644 /etc/motd
Rule Medium Severity -
Implement a GUI Warning Banner
In the default graphical environment, users logging directly into the system are greeted with a login screen provided by the GNOME Display Manager ...Group -
faillock directory
The directory where the user files with the failure records are keptValue -
fail_interval
Interval for counting failed login attempts before account lockoutValue -
fail_unlock_time
Seconds before automatic unlocking or permanently locking after excessive failed loginsValue -
tally2_unlock_time
Seconds before automatic unlocking or permanently locking after excessive failed loginsValue -
Enable GNOME3 Login Warning Banner
In the default graphical environment, displaying a login warning banner in the GNOME Display Manager's login screen can be enabled on the login scr...Rule Medium Severity -
Set the GNOME3 Login Warning Banner Text
In the default graphical environment, configuring the login warning banner text in the GNOME Display Manager's login screen can be configured on th...Rule Medium Severity -
Protect Accounts by Configuring PAM
PAM, or Pluggable Authentication Modules, is a system which implements modular authentication for Linux programs. PAM provides a flexible and confi...Group -
Password Hashing algorithm
Specify the system default encryption algorithm for encrypting passwords. Defines the value set as ENCRYPT_METHOD in /etc/login.defs.Value -
remember
The last n passwords for each user are saved in <code>/etc/security/opasswd</code> in order to force password change history and keep the user from...Value -
Disallow Configuration to Bypass Password Requirements for Privilege Escalation
Verify the operating system is not configured to bypass password requirements for privilege escalation. Check the configuration of the "/etc/pam.d/...Rule Medium Severity -
Set Up a Private Namespace in PAM Configuration
To setup a private namespace add the following line to/etc/pam.d/login
:session required pam_namespace.so
Rule Low Severity -
faildelay_delay
Delay next login attempt after a failed loginValue -
PAM pwhistory remember - control flag
'Specify the control flag required for password remember requirement. If multiple values are allowed write them separated by commas as in "required...Value
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