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XCCDF
Guide to the Secure Configuration of Red Hat Enterprise Linux 9
System Settings
Account and Access Control
Protect Accounts by Configuring PAM
Set Password Quality Requirements
Set Password Quality Requirements with pam_pwquality
Ensure PAM Enforces Password Requirements - Minimum Different Characters
Ensure PAM Enforces Password Requirements - Minimum Different Characters
An XCCDF Rule
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Ensure PAM Enforces Password Requirements - Minimum Different Characters
Medium Severity
The pam_pwquality module's
difok
parameter sets the number of characters in a password that must not be present in and old password during a password change.
Modify the
difok
setting in
/etc/security/pwquality.conf
to equal
to require differing characters when changing passwords.