The Deny log on locally user right on member servers must be configured to prevent access from highly privileged domain accounts on domain systems and unauthenticated access on all systems.

From Windows Server 2008 R2 Member Server Security Technical Implementation Guide

Associated with IA controls: ECLP-1

SV-33408r2_rule The Deny log on locally user right on member servers must be configured to prevent access from highly privileged domain accounts on domain systems and unauthenticated access on all systems.

Vulnerability discussion

Inappropriate granting of user rights can provide system, administrative, and other high level capabilities.The "Deny log on locally" right defines accounts that are prevented from logging on interactively. In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain.The Guests group must be assigned this right to prevent unauthenticated access.

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Fix text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny log on locally" to include the following. Domain Systems Only: Enterprise Admins Group Domain Admins Group All Systems: Guests Group

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