UBTU-20-010075 - The Ubuntu operating system must enforce a delay of at least 4 seconds between logon prompts following a failed logon attempt.

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Information

Limiting the number of logon attempts over a certain time interval reduces the chances that an unauthorized user may gain access to an account.

Solution

Configure the Ubuntu operating system to enforce a delay of at least 4 seconds between logon prompts following a failed logon attempt.

Edit the file '/etc/pam.d/common-auth' and set the parameter 'pam_faildelay' to a value of 4000000 or greater:

auth required pam_faildelay.so delay=4000000

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_CAN_Ubuntu_20-04_LTS_V1R10_STIG.zip

Item Details

References: CAT|III, CCI|CCI-000366, Rule-ID|SV-238237r653886_rule, STIG-ID|UBTU-20-010075, Vuln-ID|V-238237

Plugin: Unix

Control ID: 088b1cb4d9e012af76afc966995d7d4da177f0ea449932b310566cedf577c318