The vCenter Server must require an administrator to unlock an account locked due to excessive login failures.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-256346SRG-APP-000345VCSA-70-000266SV-256346r885649_rule2023-12-211
Description
By requiring that Single Sign-On (SSO) accounts be unlocked manually, the risk of unauthorized access via user password guessing, otherwise known as brute forcing, is reduced. When the account unlock time is set to zero, once an account is locked it can only be unlocked manually by an administrator.
ℹ️ Check
From the vSphere Client, go to Administration >> Single Sign On >> Configuration >> Local Accounts >> Lockout Policy. Verify the following lockout policy is set as follows: Unlock time: 0 If this account lockout policy is not configured as stated, this is a finding.
✔️ Fix
From the vSphere Client, go to Administration >> Single Sign On >> Configuration >> Local Accounts >> Lockout Policy. Click "Edit". Set the "Unlock time" to "0" and click "Save".