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ISO 21434 In-Vehicle Network Security Audit Checklist

A comprehensive checklist for auditing and securing in-vehicle network systems in the automotive industry, ensuring compliance with ISO/SAE 21434 standards and addressing potential cybersecurity vulnerabilities in internal vehicle communication networks.

ISO 21434 In-Vehicle Network Security Audit Checklist

by: audit-now
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About This Checklist

As modern vehicles become increasingly complex and interconnected, the security of in-vehicle networks is crucial for maintaining overall vehicle integrity and passenger safety. The ISO 21434 In-Vehicle Network Security Audit Checklist is an essential tool for automotive manufacturers and cybersecurity teams to ensure compliance with the ISO/SAE 21434 standard in securing internal vehicle communication systems. This comprehensive checklist addresses the critical need for robust security measures in Controller Area Networks (CAN), Ethernet, and other in-vehicle network protocols. By implementing this checklist, automotive professionals can enhance the resilience of in-vehicle networks against cyber threats, protect critical vehicle functions, and maintain the trust of consumers in the security of their connected vehicles.

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Industry

Automotive

Standard

ISO/SAE 21434 - Automotive Cybersecurity

Workspaces

Automotive Testing Facilities

Occupations

Automotive Network Security Specialist
Embedded Systems Engineer
Cybersecurity Auditor
Vehicle System Integrator
Automotive Quality Assurance Professional
1
Is the CAN bus security in compliance with ISO/SAE 21434?

Select compliance status.

To ensure that the CAN bus meets the necessary security standards.
2
What security measures are in place for the ECUs?

Describe the security measures.

To assess the security protocols implemented for Electronic Control Units.
3
How often are vulnerability assessments conducted on in-vehicle networks?

Enter frequency in months.

To determine the frequency of security evaluations.
Min: 1
Target: Quarterly
Max: 12
4
Are the network protocols compliant with industry standards?

Select compliance status.

To ensure adherence to accepted automotive network protocols.
5
Is the automotive Ethernet security compliant with ISO/SAE 21434?

Select compliance status.

To verify compliance of automotive Ethernet with established security standards.
6
What access control measures are in place for in-vehicle networks?

Describe the access control measures.

To assess the effectiveness of access control strategies implemented.
7
How frequently are security updates applied to the network components?

Enter frequency in days.

To evaluate the regularity of security maintenance practices.
Min: 1
Target: Monthly
Max: 30
8
Is there an established incident management process for cybersecurity events?

Select incident management status.

To ensure that processes are in place for managing security incidents.
9
Have recent vulnerability assessments identified any critical issues?

Select the assessment results.

To determine if critical vulnerabilities have been identified and need addressing.
10
What network segmentation practices are enforced in the vehicle systems?

Describe the network segmentation practices.

To evaluate the effectiveness of network segmentation in mitigating risks.
11
What is the rate of security incidents reported in the last year?

Enter the number of incidents.

To assess the frequency of security incidents occurring within the network.
Min: 0
Target: Less than 5
Max: 100
12
How often are user access reviews conducted for network systems?

Select the frequency of user access reviews.

To ensure that user access permissions are regularly audited.

FAQs

The primary objective is to guide automotive organizations in conducting thorough security audits of in-vehicle networks, ensuring compliance with the ISO/SAE 21434 standard and identifying potential vulnerabilities or security gaps in internal vehicle communication systems.

This checklist should be used by automotive network security specialists, embedded systems engineers, cybersecurity auditors, vehicle system integrators, and quality assurance professionals involved in the design, implementation, and testing of in-vehicle network systems.

By providing a structured approach to auditing in-vehicle networks, this checklist helps identify potential security weaknesses, ensures proper implementation of security controls, and verifies the resilience of internal communication systems against various cyber threats.

The checklist covers various in-vehicle network types, including Controller Area Networks (CAN), FlexRay, Automotive Ethernet, Local Interconnect Network (LIN), and other proprietary or emerging in-vehicle communication protocols.

Key areas include network segmentation and isolation, secure gateway implementations, intrusion detection systems, message authentication and encryption, access control mechanisms, secure boot processes for ECUs, firmware integrity verification, and anomaly detection in network traffic patterns.

Benefits

Ensures compliance with ISO/SAE 21434 in-vehicle network security requirements

Identifies and mitigates vulnerabilities in internal vehicle communication systems

Enhances protection of critical vehicle functions and data

Improves overall cybersecurity posture of modern vehicles

Facilitates systematic auditing and continuous improvement of in-vehicle network security