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Platform: win10Date: (C)2016-09-23   (M)2017-10-18

Disable: 'Interactive logon: Number of previous logons to cache (in case domain controller is not available)' for cachedlogonscount This policy setting determines whether a user can log on to a Windows domain using cached account information. Logon information for domain accounts can be cached locally to allow users to log on even if a domain controller cannot be contacted. This policy setting determines the number of unique users for whom logon information is cached locally. If this value is set to 0, the logon cache feature is disabled. An attacker who is able to access the file system of the server could locate this cached information and use a brute force attack to determine user passwords. Counter Measure: Configure the Interactive logon: Number of previous logons to cache (in case domain controller is not available) setting to 0, which disables the local caching of logon information. Additional countermeasures include enforcement of strong password policies and physically secure locations for the computers. Potential Impact: Users will be unable to log on to any computers if there is no domain controller available to authenticate them. Organizations may want to configure this value to 2 for end-user computers, especially for mobile users. A configuration value of 2 means that the user's logon information will still be in the cache, even if a member of the IT department has recently logged on to their computer to perform system maintenance. This method allows users to log on to their computers when they are not connected to the organization's network.


Technical Mechanism: (1) GPO: 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) (2) REG: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\cachedlogonscount


Resource IdReference
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:35393

OVAL    1
XCCDF    4

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