STIGQter STIGQter: STIG Summary: Microsoft Windows Server 2016 Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 04 May 2021:

The password for the krbtgt account on a domain must be reset at least every 180 days.

DISA Rule

SV-225006r569186_rule

Vulnerability Number

V-225006

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

WN16-DC-000430

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Reset the password for the krbtgt account a least every 180 days. The password must be changed twice to effectively remove the password history. Changing once, waiting for replication to complete and changing again reduces the risk of issues. Changing twice in rapid succession forces clients to re-authenticate (including application services) but is desired if a compromise is suspected.

PowerShell scripts are available to accomplish this such as at the following link:
https://gallery.technet.microsoft.com/Reset-the-krbtgt-account-581a9e51

Open "Active Directory Users and Computers" (available from various menus or run "dsa.msc").

Select "Advanced Features" in the "View" menu if not previously selected.

Select the "Users" node.

Right click on the krbtgt account and select "Reset password".

Enter a password that meets password complexity requirements.

Clear the "User must change password at next logon" check box.

The system will automatically change this to a system generated complex password.

Check Contents

This requirement is applicable to domain controllers; it is NA for other systems.

Open "Windows PowerShell".

Enter "Get-ADUser krbtgt -Property PasswordLastSet".

If the "PasswordLastSet" date is more than 180 days old, this is a finding.

Vulnerability Number

V-225006

Documentable

False

Rule Version

WN16-DC-000430

Severity Override Guidance

This requirement is applicable to domain controllers; it is NA for other systems.

Open "Windows PowerShell".

Enter "Get-ADUser krbtgt -Property PasswordLastSet".

If the "PasswordLastSet" date is more than 180 days old, this is a finding.

Check Content Reference

M

Target Key

4205

Comments