EUVD-2025-6687

Comprehensive Technical Analysis of EUVD-2025-6687

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in the Forvia Hella HELLA Driving Recorder DR 820 involves the use of default credentials that cannot be changed by users. The device uses a fixed default SSID and password ("qwertyuiop"), which is continuously broadcast, allowing unauthorized access to the device network.

Severity Evaluation:

• CVSS Base Score: 9.8
• CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The high CVSS score indicates a critical vulnerability. The key factors contributing to this score are:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill and resources.
• Privileges Required (PR): None (N) - No privileges are required to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required.
• Scope (S): Unchanged (U) - The vulnerability affects the same security scope.
• Confidentiality (C): High (H) - Complete loss of confidentiality.
• Integrity (I): High (H) - Complete loss of integrity.
• Availability (A): High (H) - Complete loss of availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Unauthorized Access: An attacker can easily connect to the device using the default SSID and password, gaining unauthorized access to the network.
2. Man-in-the-Middle (MitM) Attacks: The attacker can intercept and manipulate data transmitted over the network.
3. Data Exfiltration: Sensitive data stored on the device can be accessed and exfiltrated.
4. Denial of Service (DoS): The attacker can disrupt the normal operation of the device, leading to a denial of service.

Exploitation Methods:

1. Wireless Network Scanning: Using tools like Wireshark or Aircrack-ng to identify the default SSID.
2. Default Credential Exploitation: Connecting to the device using the default password "qwertyuiop."
3. Network Traffic Interception: Using packet sniffers to capture and analyze network traffic.
4. Malware Deployment: Installing malicious software on the device to gain persistent access or further compromise the network.

3. Affected Systems and Software Versions

Affected Systems:

• Forvia Hella HELLA Driving Recorder DR 820

Software Versions:

• All versions of the firmware that use the default SSID and password "qwertyuiop" and do not allow users to change these credentials.

4. Recommended Mitigation Strategies

1. Firmware Update: Ensure that the device firmware is updated to a version that allows users to change the default SSID and password.
2. Network Segmentation: Isolate the device on a separate network segment to limit the potential impact of unauthorized access.
3. Access Control: Implement strict access controls and monitor network traffic for unauthorized access attempts.
4. Regular Audits: Conduct regular security audits to identify and mitigate vulnerabilities.
5. User Education: Educate users about the risks of using default credentials and the importance of changing them.

5. Impact on European Cybersecurity Landscape

The vulnerability in the Forvia Hella HELLA Driving Recorder DR 820 poses a significant risk to the European cybersecurity landscape, particularly in sectors that rely on driving recorders for compliance and safety, such as transportation and logistics. The inability to change default credentials can lead to widespread unauthorized access, data breaches, and potential disruptions in critical infrastructure.

6. Technical Details for Security Professionals

Vulnerability Details:

• CVE ID: CVE-2025-30115
• Vulnerability Type: Default Credentials
• Affected Component: Wireless Network Configuration
• Default SSID: "HELLA_DR_820"
• Default Password: "qwertyuiop"

Detection Methods:

1. Network Scanning: Use tools like Nmap or Wireshark to scan for the default SSID.
2. Credential Testing: Attempt to connect to the device using the default password.
3. Log Analysis: Review network logs for unauthorized access attempts.

Mitigation Steps:

1. Firmware Update:
   • Check the manufacturer's website for firmware updates.
   • Apply the update following the manufacturer's instructions.
2. Network Configuration:
   • Change the default SSID and password to strong, unique credentials.
   • Implement WPA3 encryption for enhanced security.
3. Monitoring and Alerts:
   • Set up alerts for unauthorized access attempts.
   • Regularly review network logs for suspicious activity.

References:

• Medium Article
• GitHub Repository
• NVD Entry

By addressing this vulnerability promptly, organizations can significantly reduce the risk of unauthorized access and potential data breaches, ensuring the integrity and security of their networks.