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RHEL 8 passwords for new users or password changes must have a 24 hours/1 day minimum password lifetime restriction in /etc/logins.def.


Finding ID Version Rule ID IA Controls Severity
V-230365 RHEL-08-020190 SV-230365r627750_rule Medium
Enforcing a minimum password lifetime helps to prevent repeated password changes to defeat the password reuse or history enforcement requirement. If users are allowed to immediately and continually change their password, the password could be repeatedly changed in a short period of time to defeat the organization's policy regarding password reuse.
Red Hat Enterprise Linux 8 Security Technical Implementation Guide 2022-06-15


Check Text ( C-33034r567841_chk )
Verify the operating system enforces 24 hours/1 day as the minimum password lifetime for new user accounts.

Check for the value of "PASS_MIN_DAYS" in "/etc/login.defs" with the following command:

$ sudo grep -i pass_min_days /etc/login.defs

If the "PASS_MIN_DAYS" parameter value is not "1" or greater, or is commented out, this is a finding.
Fix Text (F-33009r567842_fix)
Configure the operating system to enforce 24 hours/1 day as the minimum password lifetime.

Add the following line in "/etc/login.defs" (or modify the line to have the required value):