DRAFT - ANSSI-BP-028 (intermediary)
Rules and Groups employed by this XCCDF Profile
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Ensure Red Hat GPG Key Installed
To ensure the system can cryptographically verify base software packages come from Red Hat (and to connect to the Red Hat Network to receive them), the Red Hat GPG key must properly be installed. T...Rule High Severity -
Enable dnf-automatic Timer
Thednf-automatic
timer can be enabled with the following command:$ sudo systemctl enable dnf-automatic.timer
Rule Medium Severity -
Account and Access Control
In traditional Unix security, if an attacker gains shell access to a certain login account, they can perform any action or access any file to which that account has access. Therefore, making it mor...Group -
Enable authselect
Configure user authentication setup to use the <code>authselect</code> tool. If authselect profile is selected, the rule will enable the <xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var...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 configurable architecture for authentication, and it sh...Group -
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 -
Set Lockouts for Failed Password Attempts
The <code>pam_faillock</code> PAM module provides the capability to lock out user accounts after a number of failed login attempts. Its documentation is available in <code>/usr/share/doc/pam-VERSIO...Group -
Limit Password Reuse
Do not allow users to reuse recent passwords. This can be accomplished by using theremember
option for thepam_unix
orpam_pwhistory
PAM modules.Rule Medium Severity -
Lock Accounts After Failed Password Attempts
This rule configures the system to lock out accounts after a number of incorrect login attempts using <code>pam_faillock.so</code>. pam_faillock.so module requires multiple entries in pam files. Th...Rule Medium Severity -
Configure the root Account for Failed Password Attempts
This rule configures the system to lock out the <code>root</code> account after a number of incorrect login attempts using <code>pam_faillock.so</code>. pam_faillock.so module requires multiple en...Rule Medium Severity -
Set Interval For Counting Failed Password Attempts
Utilizing <code>pam_faillock.so</code>, the <code>fail_interval</code> directive configures the system to lock out an account after a number of incorrect login attempts within a specified time peri...Rule Medium Severity -
Set Lockout Time for Failed Password Attempts
This rule configures the system to lock out accounts during a specified time period after a number of incorrect login attempts using <code>pam_faillock.so</code>. Ensure that the file <code>/etc/s...Rule Medium Severity -
Set Password Quality Requirements
The default <code>pam_pwquality</code> PAM module provides strength checking for passwords. It performs a number of checks, such as making sure passwords are not similar to dictionary words, are of...Group -
Set Password Quality Requirements with pam_pwquality
The <code>pam_pwquality</code> PAM module can be configured to meet requirements for a variety of policies. <br> <br> For example, to configure <code>pam_pwquality</code> to require at lea...Group -
Ensure PAM Enforces Password Requirements - Minimum Digit Characters
The pam_pwquality module's <code>dcredit</code> parameter controls requirements for usage of digits in a password. When set to a negative number, any password will be required to contain that many ...Rule Medium Severity -
Ensure PAM Enforces Password Requirements - Minimum Lowercase Characters
The pam_pwquality module's <code>lcredit</code> parameter controls requirements for usage of lowercase letters in a password. When set to a negative number, any password will be required to contain...Rule Medium Severity -
Ensure PAM Enforces Password Requirements - Minimum Different Categories
The pam_pwquality module's <code>minclass</code> parameter controls requirements for usage of different character classes, or types, of character that must exist in a password before it is consider...Rule Medium Severity -
Ensure PAM Enforces Password Requirements - Minimum Length
The pam_pwquality module's <code>minlen</code> parameter controls requirements for minimum characters required in a password. Add <code>minlen=<xccdf-1.2:sub idref="xccdf_org.ssgproject.content_val...Rule Medium Severity -
Ensure PAM Enforces Password Requirements - Minimum Special Characters
The pam_pwquality module's <code>ocredit=</code> parameter controls requirements for usage of special (or "other") characters in a password. When set to a negative number, any password will be requ...Rule Medium Severity -
Ensure PAM Enforces Password Requirements - Minimum Uppercase Characters
The pam_pwquality module's <code>ucredit=</code> parameter controls requirements for usage of uppercase letters in a password. When set to a negative number, any password will be required to contai...Rule Medium Severity
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