Windows build: node.exe missing Control Flow Guard (CFG) and DYNAMICBASE mitigations
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Description
Version
24.16.0
Platform
error BA2008: 'node.exe' does not enable the control flow guard (CFG) mitigation.
To resolve this issue, pass /guard:cf on both the compiler and linker command lines. Binaries also require the /DYNAMICBASE linker option in order to enable CFG.
For VC projects use ItemDefinitionGroup - ClCompile - ControlFlowGuard property with 'Guard' value, link CFG property will be set automatically.
Subsystem
Windows11
What steps will reproduce the bug?
https://github.com/microsoft/binskim
BinSkim.exe analyze C:\path\to\node.exe --config binskim_config_no_pdb.xml --kind Fail
binskim_config_no_pdb.xml is:
<?xml version="1.0" encoding="utf-8"?>
<Properties>
<Properties Key="BinaryParsers.Options">
<Property Key="IgnorePdbLoadError" Value="True" Type="System.Boolean" />
<Property Key="DisableTelemetry" Value="True" Type="System.Boolean" />
</Properties>
<!-- Disabled rules that need a PDB file -->
<Properties Key="BA2002.DoNotIncorporateVulnerableDependencies.Options">
<Property Key="RuleEnabled" Value="Disabled" Type="Driver.RuleEnabledState" />
</Properties>
<Properties Key="BA2006.BuildWithSecureTools.Options">
<Property Key="RuleEnabled" Value="Disabled" Type="Driver.RuleEnabledState" />
</Properties>
<Properties Key="BA2007.EnableCriticalCompilerWarnings.Options">
<Property Key="RuleEnabled" Value="Disabled" Type="Driver.RuleEnabledState" />
</Properties>
<Properties Key="BA2011.EnableStackProtection.Options">
<Property Key="RuleEnabled" Value="Disabled" Type="Driver.RuleEnabledState" />
</Properties>
<Properties Key="BA2013.InitializeStackProtection.Options">
<Property Key="RuleEnabled" Value="Disabled" Type="Driver.RuleEnabledState" />
</Properties>
<Properties Key="BA2014.DoNotDisableStackProtectionForFunctions.Options">
<Property Key="RuleEnabled" Value="Disabled" Type="Driver.RuleEnabledState" />
</Properties>
<Properties Key="BA2024.EnableSpectreMitigations.Options">
<Property Key="RuleEnabled" Value="Disabled" Type="Driver.RuleEnabledState" />
</Properties>
<Properties Key="BA2025.EnableShadowStack.Options">
<Property Key="RuleEnabled" Value="Disabled" Type="Driver.RuleEnabledState" />
</Properties>
<Properties Key="BA2026.EnableMicrosoftCompilerSdlSwitch.Options">
<Property Key="RuleEnabled" Value="Disabled" Type="Driver.RuleEnabledState" />
</Properties>
<Properties Key="BA2027.EnableSourceLink.Options">
<Property Key="RuleEnabled" Value="Disabled" Type="Driver.RuleEnabledState" />
</Properties>
</Properties>
How often does it reproduce? Is there a required condition?
What is the expected behavior? Why is that the expected behavior?
No exploit is found
What do you see instead?
Additional information
There was already prior work on this topic see (#42100)
PR #42126 was closed in favor of https://github.com/nodejs/node/pull/56605
However, #42126 also handled the missing /DYNAMICBASE flag, which was not addressed in the newer discussions. As a result, node.exe still lacks both CFG and DYNAMICBASE, and BinSkim continues to report BA2008 and BA2009.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the BinSkim analysis against the built node.exe using the provided binskim_config_no_pdb.xml, then inspect the Windows build configuration for compiler and linker security settings. Done means a rebuilt node.exe enables CFG and DYNAMICBASE and no longer reports BinSkim rules BA2008 and BA2009.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript, node.js
- Domain
- build-system, operating-systems, security
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100