CVE-2025-8476 in iLX-507
Summary
by MITRE • 08/01/2025
Alpine iLX-507 TIDAL Improper Certificate Validation Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Alpine iLX-507 devices. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the TIDAL music streaming application. The issue results from improper certificate validation. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-26322.
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Analysis
by VulDB Data Team • 08/13/2025
The CVE-2025-8476 vulnerability represents a critical security flaw in the Alpine iLX-507 vehicle infotainment system, specifically within its TIDAL music streaming application. This device operates as a sophisticated embedded system integrated into automotive environments, making it a prime target for attackers seeking to compromise vehicle security. The vulnerability stems from improper certificate validation mechanisms that fail to adequately verify the authenticity and integrity of digital certificates used in secure communications. Such flaws are particularly dangerous in automotive contexts where vehicle systems must maintain strict security boundaries to prevent unauthorized access to critical vehicle functions. The vulnerability affects devices running the Alpine iLX-507 firmware with the TIDAL streaming application, creating a potential attack surface that could be exploited by adversaries with network proximity to the affected vehicle.
The technical implementation of this vulnerability falls under CWE-295, which specifically addresses improper certificate validation in security protocols. The flaw manifests when the TIDAL application fails to properly validate SSL/TLS certificates during secure connections, allowing attackers to perform man-in-the-middle attacks or certificate spoofing operations. This weakness enables an attacker to intercept and manipulate communications between the infotainment system and external services, potentially leading to full system compromise. The vulnerability is particularly concerning because it requires no authentication for exploitation, meaning that any network-adjacent attacker can leverage this flaw without needing valid credentials. This characteristic places the vulnerability in the ATT&CK framework under TA0001 Initial Access, specifically T1190 Exploit Public-Facing Application, and potentially T1059 Command and Scripting Interpreter if code execution is achieved. The certificate validation failure creates a pathway for attackers to establish trusted connections with malicious servers, undermining the entire security architecture of the infotainment system.
The operational impact of CVE-2025-8476 extends far beyond simple code execution, as it represents a potential gateway to complete vehicle compromise. When an attacker achieves arbitrary code execution with root privileges, they gain unrestricted access to the vehicle's embedded systems, potentially enabling them to manipulate critical functions such as engine control, braking systems, or even communication protocols with external infrastructure. This vulnerability could be exploited in conjunction with other attack vectors to create a comprehensive compromise of the vehicle's security posture. The attack scenario involves an adversary positioned within network range of the vehicle, potentially using techniques such as ARP spoofing, DNS hijacking, or other network-based attacks to intercept and manipulate certificate validation processes. The implications for automotive cybersecurity are severe, as this vulnerability could enable attackers to access vehicle diagnostics, control systems, or even facilitate vehicle theft through remote manipulation of critical automotive functions.
Mitigation strategies for this vulnerability should focus on immediate firmware updates from Alpine, as well as network segmentation and monitoring of traffic to and from the affected vehicle systems. Organizations should implement network-based intrusion detection systems specifically configured to detect certificate validation anomalies and unusual communication patterns from infotainment systems. The security community should also consider implementing certificate pinning mechanisms where possible, and organizations should conduct thorough network audits to identify all instances of affected Alpine iLX-507 devices within their fleets. Additionally, automotive security frameworks such as ISO/SAE 21434 should be referenced to ensure proper vulnerability management and incident response procedures are in place. Given the severity of this vulnerability, immediate action is required to patch affected systems, as the lack of authentication requirements makes this attack vector particularly dangerous for widespread exploitation. The vulnerability highlights the critical need for robust certificate validation in automotive embedded systems and underscores the importance of maintaining up-to-date security measures in connected vehicle environments.