Interface Threat Assessment in Multi-Cluster Systems

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Solution Overview

Problem

In multi-cluster systems, such as public clouds, interface services with insufficient protection are often misconfigured, leading to security risks due to external accessibility without authentication, which existing technologies fail to detect and address effectively.

Innovation Solution

A threat assessment component identifies sensitive interface services based on common characteristics and behavior across clusters, determining if they are externally accessible without authentication, and sends notifications to administrators for corrective action.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If interface services are made externally accessible to improve service availability and functionality, then system usability and accessibility are improved, but security risks increase due to potential misconfiguration and unauthorized access

Engineering Contradiction:
Improveservice accessibilityVSAvoidsecurity risks
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary threat assessment by analyzing interface service configurations against threat intelligence data before services are exposed externally. This proactive approach identifies misconfigurations and security vulnerabilities in advance, allowing administrators to correct issues before they can be exploited, thus enabling safe external accessibility

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors interface services and provides feedback through threat assessments, alerting administrators to configuration issues. This feedback loop enables ongoing security validation of externally accessible services, maintaining both accessibility and security through iterative configuration improvement

Inventive Principle:
Principle #23Feedback

2Measurement precision

If manual security configuration is used to ensure security control, then security management precision is improved, but system complexity and administrative burden increase

Engineering Contradiction:
Improvesecurity configuration accuracyVSAvoidadministrative complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system performs automated threat assessments of interface services without requiring manual administrator intervention. The automated analysis of service configurations against threat intelligence data provides security validation independently, reducing administrative burden while maintaining security configuration accuracy through systematic evaluation

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The threat assessment system serves multiple functions: it analyzes interface configurations, compares them against threat intelligence, identifies security risks, and provides recommendations. This multi-functional approach consolidates what would otherwise require multiple separate manual processes into a single automated system, reducing complexity while improving security

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Difficulty of detecting and measuring

If comprehensive threat assessment is performed on all interface services, then security detection capability is improved, but processing time and computational resources increase

Engineering Contradiction:
Improvethreat detection capabilityVSAvoidassessment time
Core Design Contradiction:
Difficulty of detecting and measuringVSLoss of time

Solution Approach 1:

The system focuses threat assessment on interface services that are externally accessible, rather than uniformly assessing all services. By concentrating resources on services with actual exposure risks, the system achieves effective threat detection where needed while avoiding unnecessary processing of internally-bound services, thus reducing overall assessment time

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP4214621B1Interface threat assessment in multi-cluster system
Publication Date: 2024.09.04 MICROSOFT TECHNOLOGY LICENSING LLC
  • EP4214621B1 patent drawingFigure 1
  • EP4214621B1 patent drawingFigure 2
  • EP4214621B1 patent drawingFigure 3

AI summary

The automated estimation that an interface service has been misconfigured. Sensitive interface services are first identified based on common characteristics, and those characteristics are associated with sensitivity based on behavior across multiple clusters. Thereafter, the threat assessment estimates that a particular interface service is misconfigured if the particular interface service has these same common characteristics, is accessible from outside the cluster, and does not require authentication. Cluster administrators can therefore be more fully and timely advised when a misconfiguration of an interface service subjects their cluster to undue security risks.