There are several key factors that contribute to accurate security vulnerability assessment. First understanding the impact of a vulnerability requires knowledge of the affected component’s blast radius. Understanding the component’s consumers exposes the potential impact across the entire organization. The component’s blast radius risk includes:
- Interdependencies – Software systems are often comprised of interdependent components that rely on one another’s functionality. Vulnerabilities found in a critical component can trigger a domino effect, impacting downstream dependencies and causing unforeseen issues. Security vulnerability assessment should expose these interdependencies.
- Integration Points – Integration points, such as APIs, databases, and external services, represent potential areas of vulnerability. Alterations to these integration points can disrupt the flow of data and communication between different components.
- Data Flow and State – Changes in the way data is processed or the state is managed within a component can lead to inconsistencies and errors throughout the system. Understanding the data flow is crucial to assessing the potential blast radius.