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Ubuntu 22.04 LTS must store only encrypted representations of passwords.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-260569 | UBTU-22-611055 | SV-260569r953999_rule | Medium |
| Description |
|---|
| Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. If the information system or application allows the user to consecutively reuse their password when that password has exceeded its defined lifetime, the end result is a password that is not changed as per policy requirements. |
| STIG | Date |
|---|---|
| Canonical Ubuntu 22.04 LTS Security Technical Implementation Guide | 2024-03-21 |
Details
| Check Text ( C-64298r953518_chk ) |
|---|
| Verify the Ubuntu operating stores only encrypted representations of passwords with the following command: $ grep pam_unix.so /etc/pam.d/common-password password [success=1 default=ignore] pam_unix.so obscure sha512 shadow remember=5 rounds=5000 If "sha512" is missing from the "pam_unix.so" line, this is a finding. |
| Fix Text (F-64206r953519_fix) |
|---|
| Configure Ubuntu 22.04 LTS to store encrypted representations of passwords. Add or modify the following line in the "/etc/pam.d/common-password" file: password [success=1 default=ignore] pam_unix.so obscure sha512 shadow remember=5 rounds=5000 |