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Guide to the Secure Configuration of SUSE Linux Enterprise 15

Rules, Groups, and Values defined within the XCCDF Benchmark

  • 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=<xccd...
    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 ...
    Rule Medium Severity
  • Set Password Retry Limit

    The pam_cracklib module's <code>retry</code> parameter controls the maximum number of times to prompt the user for the password before returning wi...
    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 negativ...
    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 <cod...
    Group
  • dcredit

    Minimum number of digits in password
    Value
  • dictcheck

    Prevent the use of dictionary words for passwords.
    Value
  • difok

    Minimum number of characters not present in old password
    Value
  • lcredit

    Minimum number of lower case in password
    Value
  • maxclassrepeat

    Maximum Number of Consecutive Repeating Characters in a Password From the Same Character Class
    Value
  • maxrepeat

    Maximum Number of Consecutive Repeating Characters in a Password
    Value
  • minclass

    Minimum number of categories of characters that must exist in a password
    Value
  • minlen

    Minimum number of characters in password
    Value
  • ocredit

    Minimum number of other (special characters) in password
    Value
  • retry

    Number of retry attempts before erroring out
    Value
  • ucredit

    Minimum number of upper case in password
    Value
  • 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/sys...
    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 Common Authentication Hashing Algorithm

    The PAM system service can be configured to only store encrypted representations of passwords. In <code>/etc/pam.d/common-auth</code>, the <code>au...
    Rule Medium Severity
  • Set Password Hashing Algorithm in /etc/libuser.conf

    In <code>/etc/libuser.conf</code>, add or correct the following line in its <code>[defaults]</code> section to ensure the system will use the SHA-5...
    Rule Medium Severity

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