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ANSSI-BP-028 (enhanced)

Rules and Groups employed by this XCCDF Profile

  • 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 the remember option for the pam_unix or pam_pwhistory PAM modules.
    Rule Medium Severity
  • Set Deny For Failed Password Attempts

    The SUSE Linux Enterprise 15 operating system must lock an account after - at most - <xccdf-1.2:sub xmlns:xccdf-1.2="http://checklists.nist.gov/xccdf/1.2" idref="xccdf_org.ssgproject.content_value_...
    Rule Medium Severity
  • Configure the root Account lock for Failed Password Attempts via pam_tally2

    This rule configures the system to lock out the root account after a number of incorrect login attempts using pam_tally2.so.
    Rule Medium Severity
  • Set Lockout Time for Failed Password Attempts using pam_tally2

    This rule configures the system to lock out accounts during a specified time period after a number of incorrect login attempts using pam_tally2.so.
    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, if using pam_cracklib

    The <code>pam_cracklib</code> PAM module can be configured to meet requirements for a variety of policies. <br> <br> For example, to configure <code>pam_cracklib</code> to require at least...
    Group
  • Set Password Strength Minimum Digit Characters

    The pam_cracklib 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 d...
    Rule Medium Severity
  • Set Password Strength Minimum Lowercase Characters

    The pam_cracklib 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
  • Set Password Minimum Length

    The pam_cracklib 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_valu...
    Rule Medium Severity
  • Set Password Strength Minimum Special Characters

    The pam_cracklib 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 req...
    Rule Medium Severity
  • Set Password Strength Minimum Uppercase Characters

    The pam_cracklib 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 contain...
    Rule Medium Severity
  • 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 - Authentication Retry Prompts Permitted Per-Session

    To configure the number of retry prompts that are permitted per-session: Edit the <code>pam_pwquality.so</code> statement in <code>/etc/pam.d/system-auth</code> to show <code>retry=<xccdf-1.2:s...
    Rule Medium Severity
  • Set Password Hashing Algorithm

    The system's default algorithm for storing password hashes in /etc/shadow is SHA-512. This can be configured in several locations.
    Group
  • Set PAM''s Password Hashing Algorithm

    The PAM system service can be configured to only store encrypted representations of passwords. In "/etc/pam.d/common-password", the <code>password</code> section of the file controls which PAM modu...
    Rule Medium Severity
  • Set Password Hashing Rounds in /etc/login.defs

    In <code>/etc/login.defs</code>, ensure <code>SHA_CRYPT_MIN_ROUNDS</code> and <code>SHA_CRYPT_MAX_ROUNDS</code> has the minimum value of <code>5000</code>. For example: <pre>SHA_CRYPT_MIN_ROUNDS 50...
    Rule Medium Severity
  • Protect Physical Console Access

    It is impossible to fully protect a system from an attacker with physical access, so securing the space in which the system is located should be considered a necessary step. However, there are some...
    Group

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