AWS Identity and Access Management

AWS Identity and Access Management
Name	AWS Identity and Access Management
Developer	Amazon Web Services
Released	2011
Operating system	Cross-platform
License	Proprietary

AWS Identity and Access Management

AWS Identity and Access Management is a cloud service for access control developed by Amazon Web Services. It provides centralized user and permission management used across Amazon EC2, Amazon S3, Amazon RDS, Amazon Lambda, and other Amazon Web Services offerings, enabling administrators from organizations such as Netflix, Airbnb, Netflix, Inc., Spotify and NASA to enforce least-privilege access and audit trails. The service integrates with enterprise directories and standards adopted by institutions like Microsoft Corporation, Okta, Inc., Ping Identity, SAML 2.0, and OpenID Connect.

Overview

IAM is designed to let administrators create and manage identities (users, groups, roles) and define fine-grained permissions across Amazon Web Services resources. Enterprises such as Capital One, General Electric, Siemens, Slack Technologies, and Adobe Inc. use IAM to map corporate identity systems like Microsoft Active Directory or identity providers such as Google Workspace and GitHub, Inc. to cloud roles. IAM's functionality touches regulatory regimes and standards invoked by Sarbanes–Oxley Act, HIPAA, PCI DSS, ISO/IEC 27001 and processes followed by agencies like National Aeronautics and Space Administration and Department of Defense (United States).

Features and Concepts

Core concepts include users, groups, roles, policies, and identity providers. Roles enable delegation patterns used by companies like Uber Technologies, Lyft, Inc., Airbnb, Inc., and Lyft to grant temporary credentials. Policies, written in JSON, resemble authorization artifacts used in systems from Google Cloud Platform and Microsoft Azure and are comparable to controls applied under NIST frameworks. IAM supports multi-factor authentication tied to devices from Yubico and services such as Duo Security and integrates with AWS Organizations to manage multiple accounts, similar to enterprise constructs used by Procter & Gamble, Johnson & Johnson, and Unilever.

Authentication and Authorization Mechanisms

Authentication flows include support for web identity federation through OAuth 2.0, OpenID Connect and SAML 2.0, used by providers like Google LLC, Facebook, Inc., Microsoft Corporation, and Apple Inc.. Temporary security credentials use mechanisms similar to those in Kerberos ticketing and federated systems used by Yahoo! and LinkedIn Corporation. Authorization decisions are evaluated by a policy engine that inspects attributes similar to attribute-based access control models discussed by National Institute of Standards and Technology and implemented across products from Oracle Corporation and IBM.

Policies and Permissions Management

Policies attach to identities and resources and support policy types analogous to role-based access control models employed by Cisco Systems, Hewlett-Packard, Siemens AG, and General Motors. Managed policies, inline policies, permission boundaries, and service control policies in AWS Organizations enable separation of duties consistent with compliance work by firms like Deloitte, PricewaterhouseCoopers, Ernst & Young, and KPMG. Policy evaluation logic must be considered alongside resource-based policies as practiced by cloud teams at Facebook, Inc., Twitter, Inc., and Pinterest, Inc..

Integration and Use Cases

IAM is integrated into continuous delivery pipelines used by Jenkins, GitLab, Atlassian, and CircleCI to grant ephemeral credentials to build agents. It supports cross-account access patterns adopted by conglomerates like Berkshire Hathaway, Walmart, and ExxonMobil for centralized logging with Splunk, Datadog, Elastic NV, and New Relic. Developers implement least-privilege access for serverless applications using patterns influenced by architectures from Netflix OSS, HashiCorp, and Cloud Native Computing Foundation projects including Kubernetes and Prometheus.

Security Best Practices and Compliance

Best practices include enforcing multi-factor authentication as recommended by National Institute of Standards and Technology publications, rotating credentials inspired by guidance from Center for Internet Security, and using principle-of-least-privilege patterns followed by organizations like Goldman Sachs, JPMorgan Chase, and Morgan Stanley. Auditing and logging via AWS CloudTrail integrates with governance workflows used in compliance programs that reference PCI Security Standards Council, Health and Human Services (United States), and European Union Agency for Cybersecurity. IAM features such as access advisor and credential reports support incident response playbooks similar to practices at Microsoft Corporation and Google LLC.

Limitations and Criticisms

Critics point to complexity in policy syntax and scaling challenges when managing large numbers of accounts as highlighted in analyses by Gartner, Forrester Research, and consultancy reports from McKinsey & Company. Observers compare its model to alternatives in Google Cloud Platform and Microsoft Azure and note potential pitfalls in cross-account trust relationships that have affected organizations like Equifax and discussed in postmortems by US-CERT and NIST. Concerns also include usability for non-expert administrators and the necessity of complementing IAM with third-party governance tools from vendors such as CyberArk, BeyondTrust, and SailPoint Technologies.

Category:Amazon Web Services