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V-271630

CAT II (Medium)

OL 9 passwords must have a 24-hour minimum password lifetime restriction in /etc/shadow.

Rule ID

SV-271630r1091602_rule

STIG

Oracle Linux 9 Security Technical Implementation Guide

Version

V1R5

CCIs

CCI-004066

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 that OL 9 has configured the minimum time period between password changes for each user account as 24 hours or greater with the following command:

$ 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 noncompliant accounts to enforce a 24-hour minimum password lifetime:

$ sudo passwd -n 1 [user]