Microservice API Key Scoring for Breach Exposure Control
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Solution Overview
Problem
Microservices and APIs are vulnerable to unauthorized access due to weak API keys, reuse of keys across multiple services, inadequate key rotation, and proximity to external networks, posing security risks and attack exposure.
Innovation Solution
Determine a vulnerability score for API infrastructure by analyzing API call stacks for security key information and location data, using sensors to gather network traffic data, and applying security policies based on the score to mitigate risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If API keys are reused across multiple microservices to simplify authentication, then ease of operation is improved, but security reliability deteriorates due to increased breach exposure
Solution Approach 1:
The patent assigns different vulnerability weights to different API keys based on their specific usage contexts, microservice locations, and traffic patterns. Instead of treating all API keys uniformly, the system evaluates each key's unique security posture and applies localized security policies, allowing simplified authentication where appropriate while maintaining strict security where needed.
Solution Approach 2:
The system dynamically changes security parameters by calculating vulnerability scores that incorporate multiple factors including API key usage patterns, microservice location relative to external networks, traffic volume, and key age. These parameter changes enable the system to adapt authentication requirements based on real-time security assessments rather than applying static rules.
2Reliability
If comprehensive API key monitoring and vulnerability scoring is implemented to improve security reliability, then security reliability is improved, but device complexity increases due to additional monitoring infrastructure
Solution Approach 1:
The vulnerability scoring system is designed to be universally applicable across all API keys and microservices in the network. A single scoring mechanism evaluates multiple security factors simultaneously, and the same infrastructure supports various security policies and responses. This multi-functionality reduces the need for separate monitoring systems for different security concerns.
Solution Approach 2:
The system enables microservices and API keys to essentially monitor themselves by embedding vulnerability assessment capabilities within the existing microservice architecture. Each microservice can be evaluated based on its own characteristics and behavior, reducing the need for external monitoring infrastructure and simplifying the overall system architecture.
3Reliability
If API keys are rotated frequently to reduce breach exposure, then security reliability is improved, but loss of time increases due to key management overhead
Solution Approach 1:
The patent implements dynamic key rotation policies where the rotation frequency and timing of API keys are adjusted based on their calculated vulnerability scores. High-risk keys undergo more frequent rotation, while low-risk keys maintain longer validity periods. This dynamic approach optimizes security posture while minimizing unnecessary key management operations and associated time costs.
Data Source
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AI summary
The present disclosure provides systems, methods, and computer-readable media for determining an objective measure of breach exposure of Application Programming Interface (API) infrastructure for microservices. In one aspect, a method includes analyzing header information of Application Programming Interface (API) call stacks between microservices; determining, for each API call stack, corresponding security key information based on the header information; determining location information of each of the microservices; and determining a vulnerability score for each of the microservices based on the corresponding security key information and corresponding location information of each of the microservices.