OL 9 passwords must have a 24-hour minimum password lifetime restriction in /etc/shadow.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-271630 | SRG-OS-000075-GPOS-00043 | OL09-00-001090 | SV-271630r1091602_rule | 2026-02-17 | 1 |
Description
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.
ℹ️ Check
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
Configure noncompliant accounts to enforce a 24-hour minimum password lifetime:
$ sudo passwd -n 1 [user]