The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-203594	SRG-OS-000021-GPOS-00005	SV-203594r958388_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-force attacks, is reduced. Limits are imposed by locking the account.

STIG	Date
General Purpose Operating System Security Requirements Guide	2024-12-04

Details

Check Text (C-3719r557038_chk)

Verify that the operating system enforces the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If it does not, this is a finding.

Fix Text (F-3719r557039_fix)

Configure the operating system to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period.