STIGQter: STIG Summary: Windows 10 Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 04 May 2021:

Exploit Protection mitigations in Windows 10 must be configured for lync.exe.

DISA Rule

SV-220888r569187_rule

Vulnerability Number

V-220888

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

WN10-EP-000170

Severity

CAT II

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

Weight

10

Fix Recommendation

Ensure the following mitigations are configured as shown for lync.exe:

DEP:
Override DEP: False

ASLR:
ForceRelocateImages: ON

Payload:
OverrideExportAddressFilter: False
OverrideExportAddressFilterPlus: False
OverrideImportAddressFilter: False
OverrideEnableRopStackPivot: False
OverrideEnableRopCallerCheck: False
OverrideEnableRopSimExec: False

Application mitigations defined in the STIG are configured by a DoD EP XML file included with the Windows 10 STIG package in the "Supporting Files" folder.

The XML file is applied with the group policy setting Computer Configuration >> Administrative Settings >> Windows Components >> Windows Defender Exploit Guard >> Exploit Protection >> "Use a common set of exploit protection settings" configured to "Enabled" with file name and location defined under "Options:". It is recommended the file be in a read-only network location.

Check Contents

This is NA prior to v1709 of Windows 10.

This is applicable to unclassified systems, for other systems this is NA.

Run "Windows PowerShell" with elevated privileges (run as administrator).

Enter "Get-ProcessMitigation -Name lync.exe".
(Get-ProcessMitigation can be run without the -Name parameter to get a list of all application mitigations configured.)

If the following mitigations do not have the listed status which is shown below, this is a finding:

DEP:
Override DEP: False

ASLR:
ForceRelocateImages: ON

Payload:
OverrideExportAddressFilter: False
OverrideExportAddressFilterPlus: False
OverrideImportAddressFilter: False
OverrideEnableRopStackPivot: False
OverrideEnableRopCallerCheck: False
OverrideEnableRopSimExec: False

The PowerShell command produces a list of mitigations; only those with a required status are listed here. If the PowerShell command does not produce results, ensure the letter case of the filename within the command syntax matches the letter case of the actual filename on the system.

Vulnerability Number

V-220888

Documentable

False

Rule Version

WN10-EP-000170

Severity Override Guidance

This is NA prior to v1709 of Windows 10.

This is applicable to unclassified systems, for other systems this is NA.

Run "Windows PowerShell" with elevated privileges (run as administrator).

Enter "Get-ProcessMitigation -Name lync.exe".
(Get-ProcessMitigation can be run without the -Name parameter to get a list of all application mitigations configured.)

If the following mitigations do not have the listed status which is shown below, this is a finding:

DEP:
Override DEP: False

ASLR:
ForceRelocateImages: ON

Payload:
OverrideExportAddressFilter: False
OverrideExportAddressFilterPlus: False
OverrideImportAddressFilter: False
OverrideEnableRopStackPivot: False
OverrideEnableRopCallerCheck: False
OverrideEnableRopSimExec: False

The PowerShell command produces a list of mitigations; only those with a required status are listed here. If the PowerShell command does not produce results, ensure the letter case of the filename within the command syntax matches the letter case of the actual filename on the system.

Check Content Reference

M

Target Key

4072

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