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Ubuntu 22.04 LTS must enforce a delay of at least four seconds between logon prompts following a failed logon attempt.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-260550 | UBTU-22-412010 | SV-260550r991588_rule | Low |
| Description |
|---|
| Limiting the number of logon attempts over a certain time interval reduces the chances that an unauthorized user may gain access to an account. |
| STIG | Date |
|---|---|
| Canonical Ubuntu 22.04 LTS Security Technical Implementation Guide | 2024-05-30 |
Details
| Check Text ( C-64279r953461_chk ) |
|---|
| Verify Ubuntu 22.04 LTS enforces a delay of at least four seconds between logon prompts following a failed logon attempt by using the following command: $ grep pam_faildelay /etc/pam.d/common-auth auth required pam_faildelay.so delay=4000000 If "delay" is not set to "4000000" or greater, the line is commented out, or is missing, this is a finding. |
| Fix Text (F-64187r953462_fix) |
|---|
| Configure Ubuntu 22.04 LTS to enforce a delay of at least four seconds between logon prompts following a failed logon attempt. Add or modify the following line in the "/etc/pam.d/common-auth" file: auth required pam_faildelay.so delay=4000000 |