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The default permissions of global system objects must be increased.


Finding ID Version Rule ID IA Controls Severity
V-253467 WN11-SO-000240 SV-253467r829485_rule Low
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.
Microsoft Windows 11 Security Technical Implementation Guide 2023-09-29


Check Text ( C-56920r829483_chk )
If the following registry value does not exist or is not configured as specified, this is a finding:

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".