Ubuntu 22.04

Ubuntu 22.04 LTS must enforce a delay of at least four seconds between logon prompts following a failed logon attempt

STIG ID: UBTU-22-412010 | SRG: SRG-OS-000480-GPOS-00226 | Severity: Low | CCI: CCI-000366 | Vulnerability ID: V-260550

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.

Check

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

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