The SUSE operating system must be configured to create or update passwords with a minimum lifetime of 24 hours (one day).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-234889	SLES-15-020200	SV-234889r622137_rule		Medium

Description
Enforcing a minimum password lifetime helps 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.

STIG	Date
SUSE Linux Enterprise Server 15 Security Technical Implementation Guide	2021-03-04

Details

Check Text ( C-38077r618936_chk )
Verify the SUSE operating system creates or updates passwords with minimum password age of one day or greater. To check that the SUSE operating system enforces 24 hours/one day as the minimum password age, run the following command: > grep '^PASS_MIN_DAYS' /etc/login.defs PASS_MIN_DAYS 1 If no output is produced, or if "PASS_MIN_DAYS" does not have a value of "1" or greater, this is a finding.

Check Text ( C-38077r618936_chk )

Verify the SUSE operating system creates or updates passwords with minimum password age of one day or greater.

To check that the SUSE operating system enforces 24 hours/one day as the minimum password age, run the following command:

> grep '^PASS_MIN_DAYS' /etc/login.defs

PASS_MIN_DAYS 1

If no output is produced, or if "PASS_MIN_DAYS" does not have a value of "1" or greater, this is a finding.

Fix Text (F-38040r618937_fix)
Configure the SUSE operating system to enforce 24 hours/one day or greater as the minimum password age. Edit the file "/etc/login.defs" and add or correct the following line. Replace [DAYS] with the appropriate amount of days: PASS_MIN_DAYS [DAYS] The DoD requirement is "1" but a greater value is acceptable.