Security Considerations and Best Practices for Securing Serverless PaaS

Published: 04 September 2018 ID: G00351014


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Developers are embracing serverless computing to extend and integrate cloud applications and lower costs, and as a lower-friction way to develop and deploy code. Security and risk management leaders should adopt best practices to address visibility and control gaps created by serverless computing.

Table of Contents

  • Introduction
  • Analysis
    • Secure Cloud-Native Application Mindset
      • Adopt the Gartner CARTA Strategic Approach
      • Adopt an Immutable Infrastructure Mindset
      • Employ Structured Identity/Entity and Least Privilege Permissions Management
      • Build and Configure Resilient Software
      • Deliver Consistent Workload Protection, Regardless of Form Factor
    • Secure Serverless Foundation
      • Implement IAM SOD for Developers and Separate Development From Production
      • Require Mandatory Granular, Identities and Permissions Management for Serverless Code
      • Require an API Gateway and/or Event Broker to Be Used for Serverless Access
      • Continuously Discover Serverless Code, Assess the Cloud Configuration for Risk and Minimize the Surface Area for Attack
    • Secure Serverless Development
      • Create a Detailed Bill of Materials for All Serverless Code
      • Create a Data Flow Map, and Assess It for Risk and Compliance
      • Scan for Vulnerabilities Automatically/Transparently in Development
      • Use Knowledge Gained From Development to Build Least Privilege Models
      • Extend Code Assurance and Software Integrity Best Practices to Scripts
      • Use Automated Phased Deployments With Rollback
    • Secure Serverless Operation
      • Implement a Default Deny Posture
      • Use the API Gateway/Event Broker and WAF-Like Filtering for Runtime Attack Protection
      • Use Comprehensive Monitoring for Rapid Detection and Response
      • Use Existing Security Controls in and Around Serverless
      • Use Runtime Code Injection and Code Wrappering With Caution
      • Use Visibility and Feedback From Operations to Improve the Security of the Next Version
    • Bottom Line
  • Gartner Recommended Reading
© 2018 Gartner, Inc. and/or its Affiliates. All Rights Reserved. Reproduction and distribution of this publication in any form without prior written permission is forbidden. The information contained herein has been obtained from sources believed to be reliable. Gartner disclaims all warranties as to the accuracy, completeness or adequacy of such information. Although Gartners research may discuss legal issues related to the information technology business, Gartner does not provide legal advice or services and its research should not be construed or used as such. Gartner shall have no liability for errors, omissions or inadequacies in the information contained herein or for interpretations thereof. The opinions expressed herein are subject to change without notice.

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