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Unauthorized remotely accessible registry paths and sub-paths must not be configured.


Overview

Finding ID Version Rule ID IA Controls Severity
V-4443 3.108 SV-32485r2_rule High
Description
The registry is integral to the function, security, and stability of the Windows system. Some processes may require remote access to the registry. This setting controls which registry paths and sub-paths are accessible from a remote computer. These registry paths must be limited, as they could give unauthorized individuals access to the registry.
STIG Date
Windows Server 2008 R2 Member Server Security Technical Implementation Guide 2019-06-18

Details

Check Text ( C-60989r2_chk )
Analyze the system using the Security Configuration and Analysis snap-in.
Expand the Security Configuration and Analysis tree view.
Navigate to Local Policies >> Security Options.

If the value for "Network access: Remotely accessible registry paths and sub-paths" contains entries besides the following, this is a finding:

Software\Microsoft\OLAP Server
Software\Microsoft\Windows NT\CurrentVersion\Perflib
Software\Microsoft\Windows NT\CurrentVersion\Print
Software\Microsoft\Windows NT\CurrentVersion\Windows
System\CurrentControlSet\Control\ContentIndex
System\CurrentControlSet\Control\Print\Printers
System\CurrentControlSet\Control\Terminal Server
System\CurrentControlSet\Control\Terminal Server\UserConfig
System\CurrentControlSet\Control\Terminal Server\DefaultUserConfiguration
System\CurrentControlSet\Services\Eventlog
System\CurrentControlSet\Services\Sysmonlog

The policy referenced configures the following registry value:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SYSTEM\CurrentControlSet\Control\SecurePipeServers\Winreg\AllowedPaths\

Value Name: Machine

Value Type: REG_MULTI_SZ
Value: As defined in policy above

Note: Legitimate applications may add entries to this registry value. If an application requires these entries to function properly and is documented with the ISSO, this would not be a finding. Documentation should contain supporting information from the vendor's instructions.
Fix Text (F-65719r2_fix)
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network access: Remotely accessible registry paths and sub-paths" with the following entries:

Software\Microsoft\OLAP Server
Software\Microsoft\Windows NT\CurrentVersion\Perflib
Software\Microsoft\Windows NT\CurrentVersion\Print
Software\Microsoft\Windows NT\CurrentVersion\Windows
System\CurrentControlSet\Control\ContentIndex
System\CurrentControlSet\Control\Print\Printers
System\CurrentControlSet\Control\Terminal Server
System\CurrentControlSet\Control\Terminal Server\UserConfig
System\CurrentControlSet\Control\Terminal Server\DefaultUserConfiguration
System\CurrentControlSet\Services\Eventlog
System\CurrentControlSet\Services\Sysmonlog