The default permissions of global system objects must be increased.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-253467 | WN11-SO-000240 | SV-253467r991589_rule | CCI-000366 | low |
| Description | ||||
| Windows systems maintain a global list of shared system resources such as DOS device names, mutexes, and semaphores. Each type of object is created with a default DACL that specifies who can access the objects with what permissions. If this policy is enabled, the default DACL is stronger, allowing non-admin users to read shared objects, but not modify shared objects that they did not create. | ||||
| STIG | Date | |||
| Microsoft Windows 11 Security Technical Implementation Guide | 2025-05-15 | |||
Details
Check Text (C-253467r991589_chk)
If the following registry value does not exist or is not configured as specified, this is a finding:
Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SYSTEM\CurrentControlSet\Control\Session Manager\
Value Name: ProtectionMode
Value Type: REG_DWORD
Value: 1
Fix Text (F-56870r829484_fix)
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "System objects: Strengthen default permissions of internal system objects (e.g. Symbolic links)" to "Enabled".