Caching of logon credentials will be limited.

From Windows Server 2008 R2 Domain Controller Security Technical Implementation Guide

Associated with IA controls: ECSC-1

SV-32282r2_rule Caching of logon credentials will be limited.

Vulnerability discussion

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 is disconnected from the network or domain controllers are not available. Even though the credential cache is well-protected, storing encrypted copies of users passwords on systems do not always have the same physical protection required for domain controllers. If a system is attacked, the unauthorized individual may isolate the password to a domain user account using a password-cracking program, and gain access to the domain.

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Fix text

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 “2” logons or less.

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