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Selecting a Secure CMS: Key Considerations and Best Practices

Learn about CMS security, vulnerability measurement, patch management, user management, configuration, testing, and commitment to security in this comprehensive overview.

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Selecting a Secure CMS: Key Considerations and Best Practices

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Presentation Transcript

  1. Justin Klein Keane CMS Working Group March 3, 2010 CMS Security

  2. Overview • Background in CMS development • ASP, Java, Cold Fusion, Perl, Python and PHP • CMS security generalities • Specifics drawn from SAS deployment of Drupal

  3. Insecurity is a Given • Software engineering studies show bugs per KLOC • Predicatable average # of bugs in code • Some portion are security related • Some vulnerabilities are not functional flaws • Information security is an evolving space

  4. Considering a CMS • Given any system chosen will be insecure: How do you choose a CMS?

  5. Ubiquity • How widely used is the CMS? • Recognize this could mean higher risk • Wide use may also mean more eyeballs • But not necessarily

  6. Modularity • Is the system monolithic? • Important in understanding impact • Also affects upgrades • How does modularity affect scope?

  7. Patch Management/Upgrade • How easy is upgrade? • Monitor for advisories • Evaluate • Acquire • Prioritize and schedule • Test and approve • Create and test deploy • Deploy • Confirm • Clean up • Document

  8. Compartmentalization • Complexity is the enemy of security • What is level of dependence in the system? • OS, web server, db server, programming language, etc. • Component security concerns • How sill component security affect the CMS?

  9. Measuring Vulnerability • Tempting to measure reported vulnerabilities • Potential false metric (more eyes = more bugs) • Mean time to patch is a good metric • Severity of vulnerability • Better metric is project activity • People involved, update release, community “noise” • Healthy dev community = faster patching

  10. Maturity • Not necessarily longevity • How closely does the CMS model a “real” enterprise system? • Established security team • Security reporting and response procedure

  11. User Management • CMS offers power to users in varying scale • How is privilege separated • Can you disable/protect dangerous permissions?

  12. Configuration • Consider: • Many security flaws are configuration issues • How can configuration be changed to increase the security posture of your CMS? • Are there security configuration guides/guidelines available?

  13. Security Testing • Automated web app testing in infancy • If used be sure to test behind authentication • Manual testing is still the best way • Complexity of systems obviates advantage of source code in many cases • System should be tested as a whole before deployment • Components should be tested prior to install • Patches/upgrades should be tested • Commit to a continuous security testing cycle • If you don't have resources is it possible to leverage others'?

  14. Commitment to Security • Must be ongoing • Security space evolves • Systems are digital bonsai trees • Look beyond the CMS to supporting • Technology • Process • configuration

  15. SAS Practice • Published security guidelines • Setup and Configuration guidelines • Approved modules • Module approval procedure • Dedicated security team doing active research

  16. Questions?

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