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OpenSCAP vs Sonobuoy

Both stand on infrastructure testing tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

OpenSCAP

Free plan LinuxMacSelf-hosted+1

OpenSCAP brings SCAP content evaluation, scanning, policy customization, and scheduled assessments into a free tool collection. Consider its remediation warnings when deciding whether to automate policy actions.

Visit OpenSCAP

Sonobuoy

Free plan LinuxMacSelf-hosted+1

Sonobuoy provides Kubernetes diagnostics and conformance tests at no cost, with custom plugins and air-gapped support. Users should account for its cluster prerequisites and configure security hardening rather than relying on defaults.

Visit Sonobuoy

The facts

OpenSCAPSonobuoy
Free planYesYes
Open sourceNot publishedNot published
Runs onLinux, Mac, Self-hosted, WindowsLinux, Mac, Self-hosted, Windows
Lowest paid planFree or on requestNot published
Plans published1None
MakerNot publishedNot published
Websiteopen-scap.orgsonobuoy.io
On infrastructure testing tools#14 of 28#18 of 28

OpenSCAP: what it does well

  • Free and open source.
  • Supports XCCDF benchmarks and OVAL definitions.
  • Workbench runs local or remote scans.
  • Daemon schedules machine and container assessments.
  • Customized policies can be saved for reuse.

What to know first

  • Automatic remediation can disrupt infrastructure functionality.
  • Not all rules can be remediated automatically.
  • OpenSCAP Base's stated Windows support begins with version 1.3.0.

Sonobuoy: what it does well

  • Runs non-destructive configuration tests.
  • Supports custom plugins for tests and data collection.
  • Can test in air-gapped deployments with custom registries.
  • Free and open source.

What to know first

  • Requires an active Kubernetes cluster and admin kubeconfig.
  • Defaults require explicit security hardening.
  • Some logging and retrieval operations may fail on Docker Desktop Kubernetes.

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