EUVD-2024-48271

Comprehensive Technical Analysis of EUVD-2024-48271

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2024-48271 affects the TOTOLINK CP450 device, specifically version 4.1.0cu.747_B20191224. It is classified as critical with a CVSS Base Score of 9.3. The vulnerability involves the use of a hard-coded password in the Telnet Service, which is a significant security risk. The high severity is due to the following factors:

• Attack Vector (AV:N): The vulnerability can be exploited remotely over the network.
• Attack Complexity (AC:L): The attack requires low complexity.
• Privileges Required (PR:N): No special privileges are needed to exploit the vulnerability.
• User Interaction (UI:N): No user interaction is required.
• Confidentiality (VC:H), Integrity (VI:H), and Availability (VA:H): All are highly impacted.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector is the Telnet Service, which is commonly used for remote management of network devices. The hard-coded password can be exploited in several ways:

• Unauthorized Access: An attacker can gain unauthorized access to the device by using the hard-coded password.
• Remote Code Execution: Once access is gained, the attacker can execute arbitrary commands, potentially leading to further compromise of the network.
• Data Exfiltration: Sensitive information stored on the device can be accessed and exfiltrated.
• Denial of Service (DoS): The attacker can disrupt the normal operation of the device, leading to service outages.

3. Affected Systems and Software Versions

The vulnerability specifically affects:

• Device: TOTOLINK CP450
• Firmware Version: 4.1.0cu.747_B20191224

Other versions of the firmware may also be affected, but this has not been confirmed. It is advisable to check for updates or patches from the vendor.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following strategies are recommended:

• Firmware Update: Immediately apply any available firmware updates or patches from the vendor.
• Disable Telnet: If Telnet is not required, disable the service to reduce the attack surface.
• Network Segmentation: Isolate the device on a separate network segment to limit potential damage.
• Access Control: Implement strict access controls and use secure authentication methods.
• Monitoring: Continuously monitor network traffic for suspicious activities and logins.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape, particularly for organizations and individuals using the affected TOTOLINK CP450 devices. The potential for unauthorized access and remote exploitation can lead to data breaches, service disruptions, and further compromise of connected networks. This underscores the importance of timely patch management and robust security practices.

6. Technical Details for Security Professionals

• Vulnerable File: The vulnerability is associated with the file /web_cste/cgi-bin/product.ini.
• Exploit Availability: The exploit has been disclosed to the public and may be actively used by threat actors.
• References:
  • VulDB Entry
  • CTI Entry
  • Submission Details
  • GitHub Repository

Aliases: This vulnerability is also known as CVE-2024-7332.

EPSS Score: The EPSS (Exploit Prediction Scoring System) score is 22, indicating a moderate likelihood of exploitation.

ENISA IDs:

• Product ID: 0639a0fb-80e9-3308-aad7-c1914eb05bad
• Vendor ID: 491e4f5f-ac14-374b-af82-8992126a6a19

Conclusion

The vulnerability EUVD-2024-48271 in the TOTOLINK CP450 device is critical and requires immediate attention. Organizations should prioritize applying patches, disabling unnecessary services, and implementing robust security measures to mitigate the risk. Continuous monitoring and timely updates are essential to maintain a secure cyber environment.