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V-203698

CAT II (Medium)

The operating system must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur.

Rule ID

SV-203698r958736_rule

STIG

General Purpose Operating System Security Requirements Guide

Version

V3R3

CCIs

CCI-002238

Discussion

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.

Check Content

Verify the operating system automatically locks an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. If it does not, this is a finding.

Fix Text

Configure the operating system to automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made.