The Kerberos policy user ticket renewal maximum lifetime must be limited to 7 days or less.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-2379	WN12-AC-000013-DC	SV-51166r2_rule	ECSC-1	Medium

Description
This setting determines the period of time (in days) during which a user's TGT may be renewed. This security configuration limits the amount of time an attacker has to crack the TGT and gain access.

STIG	Date
Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide	2017-04-28

Details

Check Text ( None )
None

Fix Text (F-44324r1_fix)
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 renewal" to a maximum of 7 days or less.