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The SUSE operating system must employ user passwords with a minimum lifetime of 24 hours (1 day).


Overview

Finding ID Version Rule ID IA Controls Severity
V-77113 SLES-12-010270 SV-91809r1_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
SLES 12 Security Technical Implementation Guide 2018-09-27

Details

Check Text ( C-76723r1_chk )
Verify the SUSE operating system enforces a minimum time period between password changes for each user account of "1" day or greater.

Check the minimum time period between password changes for each user account with the following command:

# sudo cat /etc/shadow | cut -d ':' -f1,4 | grep -v 1 | grep -v ":$"

smithj:1

If any account has a value of "0", this is a finding.
Fix Text (F-83809r1_fix)
Configure the SUSE operating system to enforce 24 hours/1 day or greater as the minimum password age for user accounts.

Change the minimum time period between password changes for each [USER] account to "1" day with the command, replacing [USER] with the user account that must be changed:

# sudo passwd -n 1 [USER]