Detections
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1.163 AZLX-23-002465

Information

Amazon Linux 2023 must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur.

GROUP ID: V-274156RULE ID: SV-274156r1120456

By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account.

Solution

Configure Amazon Linux 2023 to automatically lock an account after three unsuccessful logon attempts in 15-minutes.

First, ensure that the system is configured with authselect, i.e., using sssd profiles:

$ sudo authselect select sssd [--force]

Then, enable the faillock feature:

$ sudo authselect enable-feature with-faillock

Then edit the "/etc/security/faillock.conf" file as follows:

fail_interval = 900

See Also

https://workbench.cisecurity.org/benchmarks/26107

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-7b., CAT|II, CCI|CCI-002238, Rule-ID|SV-274156r1120456_rule, STIG-ID|AZLX-23-002465, Vuln-ID|V-274156

Plugin: Unix

Control ID: 2efc151cb14c2cc6f88d0d04a9ff51f6658af95291a604bbbd7a04234d9f98be