STIGQter STIGQter: STIG Summary: Microsoft Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide Version: 3 Release: 2 Benchmark Date: 04 May 2021:

The Kerberos user ticket lifetime must be limited to 10 hours or less.

DISA Rule

SV-226067r569184_rule

Vulnerability Number

V-226067

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

WN12-AC-000012-DC

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the policy value in the Default Domain Policy for Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Account Policies -> Kerberos Policy -> "Maximum lifetime for user ticket" to a maximum of 10 hours, but not 0 which equates to "Ticket doesn't expire".

Check Contents

Verify the following is configured in the Default Domain Policy.

Open "Group Policy Management".
Navigate to "Group Policy Objects" in the Domain being reviewed (Forest > Domains > Domain).
Right click on the "Default Domain Policy".
Select Edit.
Navigate to Computer Configuration > Policies > Windows Settings > Security Settings > Account Policies > Kerberos Policy.

If the value for "Maximum lifetime for user ticket" is 0 or greater than 10 hours, this is a finding.

Vulnerability Number

V-226067

Documentable

False

Rule Version

WN12-AC-000012-DC

Severity Override Guidance

Verify the following is configured in the Default Domain Policy.

Open "Group Policy Management".
Navigate to "Group Policy Objects" in the Domain being reviewed (Forest > Domains > Domain).
Right click on the "Default Domain Policy".
Select Edit.
Navigate to Computer Configuration > Policies > Windows Settings > Security Settings > Account Policies > Kerberos Policy.

If the value for "Maximum lifetime for user ticket" is 0 or greater than 10 hours, this is a finding.

Check Content Reference

M

Target Key

4217

Comments