The Kerberos service ticket maximum lifetime must be limited to 600 minutes or less.

From Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide

Part of Kerberos-Service Ticket Lifetime

Associated with IA controls: ECSC-1

Associated with: CCI-000366

SV-51162r2_rule The Kerberos service ticket maximum lifetime must be limited to 600 minutes or less.

Vulnerability discussion

This setting determines the maximum amount of time (in minutes) that a granted session ticket can be used to access a particular service. Session tickets are used only to authenticate new connections with servers. Ongoing operations are not interrupted if the session ticket used to authenticate the connection expires during the connection.

Check content

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 service ticket" is 0 or greater than 600 minutes, this is a finding.

Fix text

Configure the policy value in the Default Domain Policy for Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Account Policies -> Kerberos Policy -> "Maximum lifetime for service ticket" to a maximum of 600 minutes, but not 0 which equates to "Ticket doesn't expire".

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.