UBTU-18-010031 - The Ubuntu operating system must enforce a delay of at least 4 seconds between logon prompts following a failed logon attempt.

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_18-04_LTS_V2R15_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|III, CCI|CCI-000366, Rule-ID|SV-219164r991588_rule, STIG-ID|UBTU-18-010031, STIG-Legacy|SV-109659, STIG-Legacy|V-100555, Vuln-ID|V-219164

Plugin: Unix

Control ID: 4b81d70072ce13d30099fc945612e4789a036b762b9a48fbc4cc9750570f1d04