ColdFusion Security Hardening Checklist

Why do ColdFusion servers need hardening?

ColdFusion servers are a common target because many run older versions, expose the administrator, or still carry default settings from the original install. Most successful attacks use known, already-patched vulnerabilities, so the basics below stop the majority of real-world risk.

Is your ColdFusion version still patched?

Start here. If your release is out of core support, it receives no security fixes at all, and no amount of configuration fully closes that gap. Check your version against our ColdFusion end of life guide. On a supported version, apply security updates promptly and keep a record of the current update level.

How should the server be locked down?

• Follow Adobe's lockdown guide for your version; it covers file permissions, service accounts and connector settings.
• Run ColdFusion as a low-privilege service account, never as an administrator or root.
• Block the ColdFusion administrator, /CFIDE and other admin paths from the public internet, and restrict them to known IPs or a VPN.
• Disable RDS, remove sample and documentation files, and turn off debugging output in production.
• Keep Java, the web server and the operating system patched alongside ColdFusion.

What should you check in the code?

• SQL injection: every query value should use cfqueryparam or queryExecute parameters.
• Cross-site scripting: encode output with encodeForHTML and the related encoding functions.
• File uploads: restrict allowed extensions and MIME types, and store uploads outside the web root.
• Sessions: use secure, HttpOnly cookies and regenerate the session after login.
• Unscoped variables: scope variables explicitly; recent updates changed how unscoped names are resolved.

How do you keep it secure over time?

• Monitor logs and alerts for unusual errors, admin access and file changes.
• Back up regularly and test restores.
• Review access and credentials when staff or vendors change.
• Schedule a security review at least yearly and after major releases.

Need a second pair of eyes? Our support and maintenance service includes patching and security reviews, and our upgrade service moves you onto a supported release.