Book Image

AWS Security Cookbook

By : Heartin Kanikathottu
Book Image

AWS Security Cookbook

By: Heartin Kanikathottu

Overview of this book

As a security consultant, securing your infrastructure by implementing policies and following best practices is critical. This cookbook discusses practical solutions to the most common problems related to safeguarding infrastructure, covering services and features within AWS that can help you implement security models such as the CIA triad (confidentiality, integrity, and availability), and the AAA triad (authentication, authorization, and availability), along with non-repudiation. The book begins with IAM and S3 policies and later gets you up to speed with data security, application security, monitoring, and compliance. This includes everything from using firewalls and load balancers to secure endpoints, to leveraging Cognito for managing users and authentication. Over the course of this book, you'll learn to use AWS security services such as Config for monitoring, as well as maintain compliance with GuardDuty, Macie, and Inspector. Finally, the book covers cloud security best practices and demonstrates how you can integrate additional security services such as Glacier Vault Lock and Security Hub to further strengthen your infrastructure. By the end of this book, you'll be well versed in the techniques required for securing AWS deployments, along with having the knowledge to prepare for the AWS Certified Security – Specialty certification.
Table of Contents (12 chapters)

Using key policies with conditional keys

In this recipe, we will learn how to use key policies, especially with key policy conditions. Resource-based policies attached to CMKs are called key policies. For managing access to KMS resources, we can use key policies alone, or we can use IAM policies and grants along with key policies.

In general, permissions policies specify the resources that access has to be provided to, what actions are provided, and who gets those permissions. We can attach policies to IAM identities such as users, groups, roles, and more, called IAM policies, or to services such as S3, KMS, and more, which are known as resource-based policies.

Getting ready

We need an S3 bucket to complete this recipe. I...