The VMM 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-207342	SRG-OS-000021-VMM-000050	SV-207342r958388_rule		Medium

Description

By limiting the number of failed login attempts, the risk of unauthorized VMM access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account. This restriction may be relaxed for administrative accounts to avoid potential Denial of Service.

STIG	Date
Virtual Machine Manager Security Requirements Guide	2024-12-06

Details

Check Text (C-7599r365436_chk)

Verify the VMM 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-7599r365437_fix)

Configure the VMM to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period, by locking the account.