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RHEL 8 passwords must have a 24 hours/1 day minimum password lifetime restriction in /etc/shadow.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-230364 | RHEL-08-020180 | SV-230364r627750_rule | Medium |
| 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. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 8 Security Technical Implementation Guide | 2021-03-04 |
Details
| Check Text ( C-33033r567838_chk ) |
|---|
| Check whether 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 (F-33008r567839_fix) |
|---|
| Configure non-compliant accounts to enforce a 24 hours/1 day minimum password lifetime: $ sudo chage -m 1 [user] |