Book Image

Cloud Security Handbook

By : Eyal Estrin
Book Image

Cloud Security Handbook

By: Eyal Estrin

Overview of this book

Securing resources in the cloud is challenging, given that each provider has different mechanisms and processes. Cloud Security Handbook helps you to understand how to embed security best practices in each of the infrastructure building blocks that exist in public clouds. This book will enable information security and cloud engineers to recognize the risks involved in public cloud and find out how to implement security controls as they design, build, and maintain environments in the cloud. You'll begin by learning about the shared responsibility model, cloud service models, and cloud deployment models, before getting to grips with the fundamentals of compute, storage, networking, identity management, encryption, and more. Next, you'll explore common threats and discover how to stay in compliance in cloud environments. As you make progress, you'll implement security in small-scale cloud environments through to production-ready large-scale environments, including hybrid clouds and multi-cloud environments. This book not only focuses on cloud services in general, but it also provides actual examples for using AWS, Azure, and GCP built-in services and capabilities. By the end of this cloud security book, you'll have gained a solid understanding of how to implement security in cloud environments effectively.

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Table of Contents (19 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
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Conventions used
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1
Section 1: Securing Infrastructure Cloud Services
Section 1: Securing Infrastructure Cloud Services
Free Chapter
2
Chapter 1: Introduction to Cloud Security
Chapter 1: Introduction to Cloud Security
Technical requirements
What is a cloud service?
What are the cloud deployment models?
What are the cloud service models?
Why we need security
What is the shared responsibility model?
Command-line tools
Summary
3
Chapter 2: Securing Compute Services
Chapter 2: Securing Compute Services
Technical requirements
Securing VMs
Securing managed database services
Securing containers
Securing serverless/function as a service
Summary
4
Chapter 3: Securing Storage Services
Chapter 3: Securing Storage Services
Technical requirements
Securing object storage
Securing block storage
Securing file storage
Securing the CSI
Summary
5
Chapter 4: Securing Networking Services
Chapter 4: Securing Networking Services
Technical requirements
Securing virtual networking
Securing DNS services
Securing CDN services
Securing VPN services
Securing DDoS protection services
Securing WAF services
Summary
6
Section 2: Deep Dive into IAM, Auditing, and Encryption
Section 2: Deep Dive into IAM, Auditing, and Encryption
7
Chapter 5: Effective Strategies to Implement IAM Solutions
Chapter 5: Effective Strategies to Implement IAM Solutions
Technical requirements
Introduction to IAM
Failing to manage identities
Securing cloud-based IAM services
Securing directory services
Configuring MFA
Summary
8
Chapter 6: Monitoring and Auditing Your Cloud Environments
Chapter 6: Monitoring and Auditing Your Cloud Environments
Technical requirements
Conducting security monitoring and audit trails
Conducting threat detection and response
Conducting incident response and digital forensics
Summary
9
Chapter 7: Applying Encryption in Cloud Services
Chapter 7: Applying Encryption in Cloud Services
Technical requirements
Introduction to encryption
Best practices for deploying KMSes
Best practices for deploying secrets management services
Best practices for using encryption in transit
Best practices for using encryption at rest
Encryption in use
Summary
10
Section 3: Threats and Compliance Management
Section 3: Threats and Compliance Management
11
Chapter 8: Understanding Common Security Threats to Cloud Services
Chapter 8: Understanding Common Security Threats to Cloud Services
Technical requirements
The MITRE ATT&CK framework
Detecting and mitigating data breaches in cloud services
Detecting and mitigating misconfigurations in cloud services
Detecting and mitigating insufficient IAM and key management in cloud services
Detecting and mitigating account hijacking in cloud services
Detecting and mitigating insider threats in cloud services
Detecting and mitigating insecure APIs in cloud services
Detecting and mitigating the abuse of cloud services
Summary
12
Chapter 9: Handling Compliance and Regulation
Chapter 9: Handling Compliance and Regulation
Technical requirements
Compliance and the shared responsibility model
Introduction to compliance with regulatory requirements and industry best practices
What are the common ISO standards related to cloud computing?
What is a SOC report?
What is the CSA STAR program?
What is PCI DSS?
What is the GDPR?
What is HIPAA?
Summary
13
Chapter 10: Engaging with Cloud Providers
Chapter 10: Engaging with Cloud Providers
Technical requirements
Choosing a cloud provider
What is a cloud provider questionnaire?
Tips for contracts with cloud providers
Conducting penetration testing in cloud environments
Summary
14
Section 4: Advanced Use of Cloud Services
Section 4: Advanced Use of Cloud Services
15
Chapter 11: Managing Hybrid Clouds
Chapter 11: Managing Hybrid Clouds
Technical requirements
Hybrid cloud strategy
Identity management over hybrid cloud environments
Network architecture for hybrid cloud environments
Storage services for hybrid cloud environments
Compute services for hybrid cloud environments
Securing hybrid cloud environments
Summary
16
Chapter 12: Managing Multi-Cloud Environments
Chapter 12: Managing Multi-Cloud Environments
Technical requirements
Multi-cloud strategy
Identity management over multi-cloud environments
Network architecture for multi-cloud environments
Data security in multi-cloud environments
Cost management in multi-cloud environments
Cloud Security Posture Management (CSPM)
Cloud Infrastructure Entitlement Management (CIEM)
Patch and configuration management in multi-cloud environments
The monitoring and auditing of multi-cloud environments
Summary
17
Chapter 13:Security in Large-Scale Environments
Chapter 13:Security in Large-Scale Environments
Technical requirements
Managing governance and policies at a large scale
Automation using IaC
Security in large-scale cloud environments
Summary
What's next?
Why subscribe?
18
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What are the cloud service models?

An essential part of understanding clouds is understanding the three cloud service models:

  • Infrastructure as a Service (IaaS): This is the most fundamental service model, where a customer can select the virtual machine size (in terms of the amount of CPU and memory), select a pre-configured operating system, and deploy software inside the virtual machine instance according to business needs (services such as Amazon EC2, Azure Virtual Machines, and Google Compute Engine).
  • Platform as a Service (PaaS): This type of service model varies from managed database services to managed application services (where a customer can import code and run it inside a managed environment) and more (services such as AWS Elastic Beanstalk, Azure Web Apps, and Google App Engine).
  • Software as a Service (SaaS): This is the most widely used service model – a fully managed software environment where, as a customer, you usually open a web browser, log in to an application, and consume services. These could be messaging services, ERP, CRM, business analytics, and more (services such as Microsoft Office 365, Google Workspaces, Salesforce CRM, SAP SuccessFactors, and Oracle Cloud HCM).

Understanding the cloud service models will allow you to understand your role as a customer, explained later in the What is the shared responsibility model? section.

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