CVE-2024-8360 is a medium-severity OS command injection vulnerability identified in the REFLASH_DDU_ExtractFile function of Visteon Infotainment systems, specifically version cmu150_NA_74.00.324A. The flaw stems from improper neutralization of special elements (CWE-78) in user-supplied input used to compose system calls. An attacker with physical access can supply a specially crafted software update file that triggers execution of arbitrary system commands within the device's operating environment. This leads to remote code execution without requiring authentication or user interaction. The vulnerability was assigned by ZDI (ZDI-CAN-23421) and published on November 22, 2024. The CVSS v3.0 score of 6.8 reflects a medium severity with attack vector limited to physical access (AV:P), low attack complexity (AC:L), no privileges required (PR:N), and no user interaction (UI:N). The impact on confidentiality, integrity, and availability is high, as arbitrary code execution could allow full control over the infotainment system. No patches or known exploits are currently available, but the risk is significant given the critical role of infotainment systems in modern vehicles. The vulnerability highlights the importance of secure input validation and command execution practices in embedded automotive software.

The vulnerability allows attackers with physical access to execute arbitrary code on Visteon Infotainment systems, potentially compromising the confidentiality, integrity, and availability of the device. This could lead to unauthorized control over infotainment functions, disruption of vehicle systems, or use as a pivot point for further attacks within the vehicle's network. The impact extends to driver distraction, privacy breaches, and safety risks if critical vehicle functions are affected. Organizations relying on these infotainment systems, especially automotive manufacturers and fleet operators, face risks of operational disruption and reputational damage. Although remote exploitation is not possible, the physical access requirement limits the attack surface but does not eliminate risk in scenarios such as vehicle servicing, rentals, or theft. The absence of known exploits currently reduces immediate threat but underscores the need for proactive mitigation.

1. Restrict physical access to vehicles and infotainment systems, especially during servicing or in fleet environments. 2. Monitor and control the source and integrity of software update files to prevent unauthorized or malicious updates. 3. Implement strict input validation and sanitization in software update handling functions to neutralize special characters and prevent command injection. 4. Employ application whitelisting or code signing to ensure only authorized software runs on infotainment devices. 5. Collaborate with Visteon and automotive OEMs to obtain and deploy patches or firmware updates as soon as they become available. 6. Conduct regular security assessments and penetration testing focused on infotainment systems to identify and remediate similar vulnerabilities. 7. Educate vehicle maintenance personnel about the risks of unauthorized software updates and physical tampering. 8. Consider network segmentation within vehicle systems to limit the impact of compromised infotainment units.