CVE-2025-30117 in HELLA Driving Recorder DR 820
Summary
by MITRE • 03/18/2025
An issue was discovered on the Forvia Hella HELLA Driving Recorder DR 820. Managing Settings and Obtaining Sensitive Data and Sabotaging the Car Battery can be performed by unauthorized parties. After bypassing the device pairing, an attacker can obtain sensitive user and vehicle information through the settings interface. Remote attackers can modify power management settings, disable recording, delete stored footage, and turn off battery protection, leading to potential denial-of-service conditions and vehicle battery drainage.
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Analysis
by VulDB Data Team • 03/18/2025
The CVE-2025-30117 vulnerability affects the Forvia Hella HELLA Driving Recorder DR 820, a device designed to record vehicle driving data and manage various operational settings. This security flaw represents a critical weakness in the device's authentication and authorization mechanisms, allowing unauthorized parties to gain access to sensitive vehicle and user information through the device's settings interface. The vulnerability specifically targets the device's pairing security protocols, which when bypassed enable attackers to perform multiple malicious activities that compromise both data integrity and vehicle operational safety. The affected device operates within the automotive telematics and driver monitoring ecosystem, making it a potential entry point for broader vehicle system compromises.
The technical implementation of this vulnerability stems from inadequate authentication controls and weak session management within the device's user interface. Attackers can exploit the bypassed pairing mechanism to access the device's configuration settings without proper authorization, which according to CWE-287, represents a failure in authentication mechanisms that allows unauthorized access to protected resources. The device's settings interface provides access to critical operational parameters including power management configurations, recording functions, and battery protection controls. This exposure creates multiple attack vectors that align with ATT&CK technique T1566 for initial access and T1499 for denial-of-service conditions. The vulnerability's design flaw allows attackers to manipulate core device functions through a single unauthorized access point, creating cascading security impacts.
The operational impact of this vulnerability extends beyond simple data exposure to include potential vehicle system compromise and safety risks. Remote attackers can modify power management settings to disable critical recording functions, delete stored footage that may contain important evidence, and turn off battery protection mechanisms that safeguard vehicle electrical systems. This capability creates a denial-of-service condition where the device cannot properly record driving data, potentially leaving vehicle owners without crucial evidence in accident scenarios. The most concerning aspect involves the battery protection disablement, which can lead to vehicle battery drainage and potentially render the vehicle inoperable. The vulnerability affects automotive cybersecurity standards as it allows attackers to compromise vehicle electrical systems through non-physical means, representing a significant threat to vehicle safety and operational integrity.
Mitigation strategies for CVE-2025-30117 should focus on strengthening authentication mechanisms and implementing proper access controls within the device's configuration interface. Device manufacturers should implement robust pairing protocols with strong cryptographic authentication, ensuring that all configuration changes require proper authorization before execution. Network segmentation and access control measures should be deployed to prevent unauthorized remote access to vehicle systems. Security updates should be implemented to address the authentication bypass vulnerability, and device firmware should include integrity checks to prevent unauthorized modifications. According to NIST SP 800-82 guidelines for industrial control systems, proper network monitoring and intrusion detection should be implemented to identify suspicious access patterns. Vehicle owners should be advised to keep firmware updated and to disable unnecessary remote access features when not required. The vulnerability demonstrates the importance of secure-by-design principles in automotive telematics systems and highlights the need for comprehensive security testing of vehicle components before deployment.