BIOS Version Validation via Agent-Based Hash Comparison
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Solution Overview
Problem
Current role-based access control (RBAC) techniques in information processing systems are vulnerable to attacks such as password theft and session hijacking, necessitating improved protection methods for devices from suspicious and unauthorized operations.
Innovation Solution
The method involves obtaining and verifying identifiers of designated BIOS versions on processing devices, updating the active BIOS version if it does not match the designated ones, and initiating a boot process using the updated version, employing a software agent to confirm and update the BIOS version by comparing hash values and initiating a reboot if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If role-based access control (RBAC) techniques are employed to restrict access to devices, then access control and security management are improved, but the system becomes vulnerable to attacks such as password theft and session hijacking
Solution Approach 1:
The patent performs BIOS validation and verification before the operating system fully loads and before user applications can execute. The agent validates the BIOS version and integrity during the boot process, establishing a trusted foundation before higher-level security mechanisms (like RBAC) are activated. This preliminary validation prevents malicious BIOS modifications from compromising subsequent security layers.
Solution Approach 2:
The patent introduces a software agent as an intermediary component that operates between the BIOS and the operating system. This agent acts as a trusted mediator that validates BIOS integrity independently of RBAC mechanisms, creating an additional layer of verification that is not susceptible to the same attack vectors as traditional access control systems.
2Reliability
If BIOS validation and updating mechanisms are implemented, then device protection from unauthorized operations is improved, but system complexity increases
Solution Approach 1:
The patent implements a self-validating BIOS system where the software agent automatically checks BIOS integrity, compares version identifiers, and triggers updates without requiring manual intervention from system administrators. The system services itself by detecting unauthorized BIOS modifications and autonomously restoring approved versions, reducing the complexity burden on operators while maintaining strong protection.
Solution Approach 2:
The patent combines multiple security functions into a single integrated agent component that handles BIOS validation, version verification, and update coordination. By merging these functions into one unified mechanism rather than separate systems, the patent reduces overall system complexity while maintaining comprehensive BIOS protection capabilities.
Data Source
AI summary
Techniques are provided for basic input/output system (BIOS) protection using BIOS version validation. One method comprises obtaining, by an entity associated with an operating system of a device, identifiers of designated versions of a BIOS of the device; obtaining, by the entity, an identifier of an active BIOS version; updating, by the entity, the active BIOS version to a given designated version of the BIOS, responsive to the entity determining that the identifier of the active BIOS version does not match the identifiers of the designated versions of the BIOS; and initiating, by the entity, a boot process of the processing device using the given designated version of the BIOS. The identifiers of the designated versions of the BIOS may comprise hash values of corresponding approved versions of the BIOS. The entity may comprise an agent executed by the operating system.