Windows Server 2019 Turning off File Explorer heap termination on corruption must be disabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-205871	WN19-CC-000320	SV-205871r991589_rule		Low

Description
Legacy plug-in applications may continue to function when a File Explorer session has become corrupt. Disabling this feature will prevent this.

STIG	Date
Microsoft Windows Server 2019 Security Technical Implementation Guide	2024-06-14

Details

Check Text ( C-6136r355975_chk )
The default behavior is for File Explorer heap termination on corruption to be enabled. If the registry Value Name below does not exist, this is not a finding. If it exists and is configured with a value of "0", this is not a finding. If it exists and is configured with a value of "1", this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Explorer\ Value Name: NoHeapTerminationOnCorruption Value Type: REG_DWORD Value: 0x00000000 (0) (or if the Value Name does not exist)

Check Text ( C-6136r355975_chk )

The default behavior is for File Explorer heap termination on corruption to be enabled.

If the registry Value Name below does not exist, this is not a finding.

If it exists and is configured with a value of "0", this is not a finding.

If it exists and is configured with a value of "1", this is a finding.

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Explorer\

Value Name: NoHeapTerminationOnCorruption

Value Type: REG_DWORD
Value: 0x00000000 (0) (or if the Value Name does not exist)

Fix Text (F-6136r355976_fix)
The default behavior is for File Explorer heap termination on corruption to be disabled. If this needs to be corrected, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> "Turn off heap termination on corruption" to "Not Configured" or "Disabled".