UCF STIG Viewer Logo
Changes are coming to https://stigviewer.com. Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey

Caching of logon credentials must be limited.


Overview

Finding ID Version Rule ID IA Controls Severity
V-1090 WN12-SO-000024 SV-52846r2_rule ECSC-1 Low
Description
The default Windows configuration caches the last logon credentials for users who log on interactively to a system. This feature is provided for system availability reasons, such as the user's machine being disconnected from the network or domain controllers being unavailable. Even though the credential cache is well-protected, if a system is attacked, an unauthorized individual may isolate the password to a domain user account using a password-cracking program and gain access to the domain.
STIG Date
Windows Server 2012 / 2012 R2 Member Server Security Technical Implementation Guide 2015-06-16

Details

Check Text ( C-61743r2_chk )
If the system is not a member of a domain, this is NA.

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\

Value Name: CachedLogonsCount

Value Type: REG_SZ
Value: 4 (or less)
Fix Text (F-66507r2_fix)
If the system is not a member of a domain, this is NA.

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Interactive Logon: Number of previous logons to cache (in case Domain Controller is not available)" to "4" logons or less.