Only administrators responsible for the system must have Administrator rights on the system.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-1127	4.027-MS	SV-32254r4_rule	ECPA-1	High

Description
An account that does not have Administrator duties must not have Administrator rights. Such rights would allow the account to bypass or modify required security restrictions on that machine and make it vulnerable to attack. System administrators must log on to systems only using accounts with the minimum level of authority necessary. For domain-joined member servers, the Domain Admins group must be replaced by a domain member server administrator group (see V-36433 in the Active Directory Domain STIG). Restricting highly privileged accounts from the local Administrators group helps mitigate the risk of privilege escalation resulting from credential theft attacks. Systems dedicated to the management of Active Directory (AD admin platforms, see V-36436 in the Active Directory Domain STIG) are exempt from this. AD admin platforms may use the Domain Admins group or a domain administrative group created specifically for AD admin platforms (see V-43711 in the Active Directory Domain STIG). Standard user accounts must not be members of the built-in Administrators group.

Description

An account that does not have Administrator duties must not have Administrator rights. Such rights would allow the account to bypass or modify required security restrictions on that machine and make it vulnerable to attack. System administrators must log on to systems only using accounts with the minimum level of authority necessary. For domain-joined member servers, the Domain Admins group must be replaced by a domain member server administrator group (see V-36433 in the Active Directory Domain STIG). Restricting highly privileged accounts from the local Administrators group helps mitigate the risk of privilege escalation resulting from credential theft attacks. Systems dedicated to the management of Active Directory (AD admin platforms, see V-36436 in the Active Directory Domain STIG) are exempt from this. AD admin platforms may use the Domain Admins group or a domain administrative group created specifically for AD admin platforms (see V-43711 in the Active Directory Domain STIG). Standard user accounts must not be members of the built-in Administrators group.

STIG	Date
Windows Server 2008 R2 Member Server Security Technical Implementation Guide	2015-03-09

Details

Check Text ( C-54673r1_chk )
Review the local Administrators group. Only the appropriate administrator groups or accounts responsible for administration of the system may be members of the group. For domain-joined member servers, the Domain Admins group must be replaced by a domain member server administrator group. Systems dedicated to the management of Active Directory (AD admin platforms, see V-36436 in the Active Directory Domain STIG) are exempt from this. AD admin platforms may use the Domain Admins group or a domain administrative group created specifically for AD admin platforms (see V-43711 in the Active Directory Domain STIG). Standard user accounts must not be members of the local administrator group. If prohibited accounts are members of the local administrators group, this is a finding. The built-in Administrator account or other required administrative accounts would not be a finding.

Check Text ( C-54673r1_chk )

Review the local Administrators group. Only the appropriate administrator groups or accounts responsible for administration of the system may be members of the group.

For domain-joined member servers, the Domain Admins group must be replaced by a domain member server administrator group.

Systems dedicated to the management of Active Directory (AD admin platforms, see V-36436 in the Active Directory Domain STIG) are exempt from this. AD admin platforms may use the Domain Admins group or a domain administrative group created specifically for AD admin platforms (see V-43711 in the Active Directory Domain STIG).

Standard user accounts must not be members of the local administrator group.

If prohibited accounts are members of the local administrators group, this is a finding.

The built-in Administrator account or other required administrative accounts would not be a finding.

Fix Text (F-58529r1_fix)
Configure the system to include only administrator groups or accounts that are responsible for the system in the local Administrators group. For domain-joined member servers, the Domain Admins group must be replaced by a domain member server administrator group. Systems dedicated to the management of Active Directory (AD admin platforms, see V-36436 in the Active Directory Domain STIG) are exempt from this. AD admin platforms may use the Domain Admins group or a domain administrative group created specifically for AD admin platforms (see V-43711 in the Active Directory Domain STIG). Remove any standard user accounts.

Fix Text (F-58529r1_fix)

Configure the system to include only administrator groups or accounts that are responsible for the system in the local Administrators group.

For domain-joined member servers, the Domain Admins group must be replaced by a domain member server administrator group.

Systems dedicated to the management of Active Directory (AD admin platforms, see V-36436 in the Active Directory Domain STIG) are exempt from this. AD admin platforms may use the Domain Admins group or a domain administrative group created specifically for AD admin platforms (see V-43711 in the Active Directory Domain STIG).

Remove any standard user accounts.