CVE-2024-23930 in DMH-WT7600NEX
Summary
by MITRE • 01/31/2025
This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of Pioneer DMH-WT7600NEX devices. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the Media service, which listens on TCP port 42000 by default. The issue results from improper handling of error conditions. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 08/27/2025
The vulnerability identified as CVE-2024-23930 represents a critical denial-of-service weakness in Pioneer DMH-WT7600NEX multimedia devices that operates without requiring any authentication credentials. This flaw specifically targets the Media service component that operates on the default TCP port 42000, making it accessible to attackers who are merely network-adjacent to the affected system. The vulnerability stems from inadequate error condition handling within the media service implementation, creating a pathway for malicious actors to disrupt normal device operations. Such a weakness is particularly concerning given that the device operates in a networked environment where unauthorized access attempts may occur without additional authentication barriers.
The technical exploitation of this vulnerability occurs through the media service's insufficient error handling mechanisms when processing incoming network requests. When an attacker sends specially crafted malformed packets or requests to the TCP port 42000, the system fails to properly manage these error conditions, leading to system instability and eventual denial-of-service state. This improper error handling manifests as the device becoming unresponsive or crashing entirely, rendering the multimedia system inoperable for legitimate users. The vulnerability's classification aligns with CWE-704, which covers improper error handling, and represents a direct violation of secure coding practices that require robust error management to prevent system instability.
From an operational standpoint, this vulnerability creates significant risk for users who rely on Pioneer DMH-WT7600NEX devices in automotive entertainment systems or commercial environments. The lack of authentication requirements means that any network-adjacent attacker can exploit the flaw, potentially disrupting vehicle entertainment systems during critical driving periods or affecting commercial installations where device availability is paramount. The denial-of-service condition can persist until manual system reboot occurs, creating operational downtime that may be particularly problematic in fleet management scenarios or automotive environments where system reliability is essential for driver safety and user experience. This vulnerability directly impacts the availability aspect of the CIA triad and can be categorized under the ATT&CK technique T1499.002 for network denial-of-service attacks.
The remediation approach for this vulnerability requires immediate attention from device administrators who must implement network segmentation to restrict access to TCP port 42000, particularly in environments where unauthorized network access is possible. While the most effective solution involves applying vendor-provided firmware updates that address the specific error handling flaw, network administrators should also consider implementing access control lists or firewalls to block unauthorized traffic to port 42000. The vulnerability demonstrates the importance of secure coding practices and proper error handling in embedded systems, particularly those operating in automotive environments where system reliability directly impacts safety. Organizations should also implement monitoring solutions to detect anomalous network traffic patterns that may indicate exploitation attempts targeting this specific port and service. The vulnerability serves as a reminder of the critical need for robust input validation and error handling in network services, particularly in embedded systems where resource constraints may limit the ability to implement comprehensive security measures.