Cloud environments can be viewed as large-scale data centers filled with physical hardware running virtualized systems, storage, and networking components. Above this infrastructure sits an API layer that enables interaction through browsers, command-line tools, SDKs, and automation frameworks.
Because every action whether administrative or malicious occurs through these APIs, cloud platforms resemble complex web applications. As with any web application, API-related vulnerabilities can arise, making this layer a critical focus for both attackers and defenders.
Cloud security issues tend to fall into several categories:
Cloud Provider Weaknesses : These vulnerabilities exist within the provider’s own APIs or services. They are rare and significantly harder to discover than tenant-side issues.
Cross-Tenant Exposure : Flaws that allow one account to access resources of another account are severe but uncommon.
Host Escape Issues : Involve breaking out of managed services to reach underlying infrastructure or other tenant data, particularly within tightly controlled environments like managed databases.
Misconfigurations : By far the most prevalent issue, misconfigurations become true vulnerabilities only when they compromise confidentiality, integrity, or availability. Providers typically offer guidance, secure defaults, and monitoring tools to help customers avoid these pitfalls.
The AWS Well-Architected Framework outlines essential principles across operational excellence, security, reliability, performance, cost, and sustainability.
The Security Pillar emphasizes protecting data, managing user access, and limiting the impact of potential breaches. Key elements include: