Windows 10 Exploit Protection system-level mitigation, Randomize memory allocations (Bottom-Up ASLR), must be on.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-77095	WN10-EP-000030	SV-91791r1_rule		Medium

Description
Exploit protection in Windows 10 enables mitigations against potential threats at the system and application level. Several mitigations, including "Randomize memory allocations (Bottom-Up ASLR)", are enabled by default at the system level. Bottom-Up ASLR (address space layout randomization) randomizes locations for virtual memory allocations, including those for system structures. If this is turned off, Windows 10 may be subject to various exploits.

Description

Exploit protection in Windows 10 enables mitigations against potential threats at the system and application level. Several mitigations, including "Randomize memory allocations (Bottom-Up ASLR)", are enabled by default at the system level. Bottom-Up ASLR (address space layout randomization) randomizes locations for virtual memory allocations, including those for system structures. If this is turned off, Windows 10 may be subject to various exploits.

STIG	Date
Windows 10 Security Technical Implementation Guide	2017-12-01

Details

Check Text ( C-76705r2_chk )
This is NA prior to v1709 of Windows 10. Run "Windows PowerShell" with elevated privileges (run as administrator). Enter "Get-ProcessMitigation -System". If the status of "ASLR: BottomUp" is "OFF", this is a finding. Values that would not be a finding include: ON NOTSET

Fix Text (F-83793r2_fix)
Ensure Exploit Protection system-level mitigation, "Randomize memory allocations (Bottom-Up ASLR)" is turned on. Open "Windows Defender Security Center". Select "App & browser control". Select "Exploit protection settings". Under "System settings", configure "Randomize memory allocations (Bottom-Up ASLR)" to "On by default" or "Use default ()".