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Passwords for new users must have a 24 hours/1 day minimum password lifetime restriction.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-214959 | UBTU-16-010210 | SV-214959r508033_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, then the password could be repeatedly changed in a short period of time to defeat the organization's policy regarding password reuse. |
| STIG | Date |
|---|---|
| Canonical Ubuntu 16.04 LTS Security Technical Implementation Guide | 2020-09-03 |
Details
| Check Text ( C-16158r284745_chk ) |
|---|
| Verify that the Ubuntu operating system enforces a 24 hours/1 day minimum password lifetime for new user accounts by running the following command: # grep -i pass_min_days /etc/login.defs PASS_MIN_DAYS 1 If the "PASS_MIN_DAYS" parameter value is less than "1", or commented out, this is a finding. |
| Fix Text (F-16156r284746_fix) |
|---|
| Configure the Ubuntu operating system to enforce a 24 hours/1 day minimum password lifetime. Add, or modify the following line in the "/etc/login.defs" file: PASS_MIN_DAYS 1 |