Kernel Command Interception for Unauthorized Access Prevention
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Solution Overview
Problem
Role-based access control (RBAC) techniques in information processing systems are vulnerable to attacks such as password theft and session hijacking, necessitating improved methods to protect devices from unauthorized and malicious operations.
Innovation Solution
A method where a software entity associated with the operating system kernel intercepts user commands before execution, requesting approval from an authorized entity based on predefined policies, ensuring that only authorized commands are executed through multi-factor authentication and real-time permission evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If role-based access control (RBAC) techniques are used to restrict access based on user roles, then access control and resource management is improved, but vulnerability to attacks such as password theft and session hijacking increases
Solution Approach 1:
The system performs preliminary action by intercepting commands before execution and evaluating them against policies in advance. The command interception module captures commands prior to execution, and the policy evaluation module assesses whether the command should be executed based on predefined policies, creating a preventive security layer before any potential harm occurs.
Solution Approach 2:
The system introduces intermediary components between the user and the command execution. The command interception module and policy evaluation module act as intermediaries that stand between the user's command input and the actual execution, mediating the interaction to ensure security compliance before allowing execution to proceed.
2Reliability
If commands are intercepted and evaluated before execution, then protection from unauthorized operations is improved, but system complexity increases
Solution Approach 1:
The system merges multiple security functions into integrated components. The command interception module, policy evaluation module, and execution control are combined into a unified security framework that operates together as a cohesive system, reducing overall architectural complexity while maintaining comprehensive protection.
Solution Approach 2:
The policy evaluation module serves multiple functions: it evaluates commands against policies, determines execution authorization, and controls command execution. This multi-functionality reduces the need for separate dedicated components, simplifying the overall system architecture while maintaining strong security protections.
3Reliability
If multi-factor authentication and real-time permission evaluation are implemented, then security against malicious activity is improved, but execution time and processing overhead increase
Solution Approach 1:
The system performs authentication and policy evaluation in advance before command execution. By completing these security checks prior to execution, the actual command execution can proceed more quickly without repeated interruptions, and the time cost is concentrated in the pre-execution phase rather than during execution.
Solution Approach 2:
The system implements feedback mechanisms where the policy evaluation module provides immediate feedback on whether a command should be executed. This feedback loop allows for rapid decision-making on command authorization, minimizing delays by efficiently accepting or rejecting commands based on real-time policy assessment.
Data Source
AI summary
Techniques are provided for device protection using pre-execution command interception and evaluation. One method comprises obtaining, by a software entity associated with an operating system kernel of a device, a command from a user prior to an execution of the command; providing, by the software entity associated with the operating system kernel, a request to an approval entity to evaluate whether to execute the command; and initiating the execution of the command based on a result of the evaluation, by the approval entity, of whether to execute the command. The approval entity may be identified by accessing a registry of one or more users that are authorized to provide an authorization to execute the command. The evaluation of whether to execute the command may comprise one or more tasks specified by a policy.