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V-248694

CAT II (Medium)

OL 8 passwords for new users or password changes must have a 24 hours/one day minimum password lifetime restriction in "/etc/shadow".

Rule ID

SV-248694r1015054_rule

STIG

Oracle Linux 8 Security Technical Implementation Guide

Version

V2R8

CCIs

CCI-004066 CCI-000198

Discussion

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.

Check Content

Verify the minimum time period between password changes for each user account is one day or greater. 
 
$ sudo awk -F: '$4 < 1 {print $1 " " $4}' /etc/shadow 
 
If any results are returned that are not associated with a system account, this is a finding.

Fix Text

Configure non-compliant accounts to enforce a 24 hours/one day minimum password lifetime: 
 
$ sudo chage -m 1 [user]