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The Kerberos policy option Maximum tolerance for computer clock synchronization must be set to a maximum of 5 minutes or less.


Overview

Finding ID Version Rule ID IA Controls Severity
V-2380 AD.4033_2003 SV-28504r1_rule ECSC-1 Medium
Description
This setting determines the maximum time difference (in minutes) that Kerberos will tolerate between the time on a client's clock and the time on a server's clock while still considering the two clocks synchronous. In order to prevent replay attacks, Kerberos uses timestamps as part of its protocol definition. For timestamps to work properly, the clocks of the client and the server need to be in sync as much as possible.
STIG Date
Windows 2003 Domain Controller Security Technical Implementation Guide 2014-04-07

Details

Check Text ( None )
None
Fix Text (F-5785r1_fix)
Configure the Kerberos policy option Maximum tolerance for computer clock synchronization to a maximum of 5 minutes or less.