AAA Services must be configured to automatically lock user accounts after three consecutive invalid logon attempts within a 15-minute time period.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-80851	SRG-APP-000065-AAA-000200	SV-95561r1_rule		Medium

Description
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.

STIG	Date
Authentication, Authorization, and Accounting Services (AAA) Security Requirements Guide	2018-10-01

Details

Check Text ( C-80587r1_chk )
If AAA Services rely on directory services for user account management, this is not applicable and the connected directory services must perform this function. Verify AAA Services are configured to automatically lock user accounts after three consecutive invalid logon attempts within a 15-minute time period. If AAA Services are not configured to automatically lock user accounts after three consecutive invalid logon attempts within a 15-minute time period, this is a finding.

Check Text ( C-80587r1_chk )

If AAA Services rely on directory services for user account management, this is not applicable and the connected directory services must perform this function.

Verify AAA Services are configured to automatically lock user accounts after three consecutive invalid logon attempts within a 15-minute time period.

If AAA Services are not configured to automatically lock user accounts after three consecutive invalid logon attempts within a 15-minute time period, this is a finding.

Fix Text (F-87705r1_fix)
Configure AAA Services to automatically lock user accounts after three consecutive invalid logon attempts within a 15-minute time period.