EUVD-2023-41064

Comprehensive Technical Analysis of EUVD-2023-41064

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2023-41064, also known as CVE-2023-37144, affects Tenda AC10 v15.03.06.26 and involves a command injection vulnerability via the mac parameter in the function formWriteFacMac. The CVSS (Common Vulnerability Scoring System) base score of 9.8 indicates a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H breaks down as follows:

• 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 special privileges are needed to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required.
• Scope (S): Unchanged (U) - The vulnerability does not change the security scope.
• Confidentiality (C): High (H) - The vulnerability allows for high confidentiality impact.
• Integrity (I): High (H) - The vulnerability allows for high integrity impact.
• Availability (A): High (H) - The vulnerability allows for high availability impact.

Given these factors, the vulnerability is considered highly severe and poses significant risks to affected systems.

2. Potential Attack Vectors and Exploitation Methods

The command injection vulnerability can be exploited by sending specially crafted requests to the affected device. An attacker could inject malicious commands through the mac parameter, leading to arbitrary command execution on the device. Potential attack vectors include:

• Remote Exploitation: An attacker can exploit the vulnerability over the network without needing physical access to the device.
• Automated Scripts: Attackers can use automated scripts to scan for vulnerable devices and exploit them en masse.
• Phishing and Social Engineering: Attackers may trick users into visiting malicious websites that exploit the vulnerability.

3. Affected Systems and Software Versions

The vulnerability specifically affects Tenda AC10 devices running firmware version v15.03.06.26. It is crucial to identify and update all instances of this firmware version to mitigate the risk.

4. Recommended Mitigation Strategies

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

• Firmware Update: Immediately update the firmware of affected Tenda AC10 devices to the latest version provided by the vendor.
• Network Segmentation: Isolate vulnerable devices from critical networks to limit the potential impact of an exploit.
• Firewall Rules: Implement strict firewall rules to restrict access to the device's management interface.
• Intrusion Detection Systems (IDS): Deploy IDS to monitor for suspicious network activity that may indicate an exploitation attempt.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security gaps.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant threat to the European cybersecurity landscape, particularly for organizations and individuals using Tenda AC10 devices. The high severity score and the ease of exploitation make it a prime target for cybercriminals. The potential for widespread exploitation could lead to data breaches, unauthorized access, and disruption of services.

6. Technical Details for Security Professionals

For security professionals, the following technical details are essential:

• Vulnerability Identification: The vulnerability is identified by EUVD-2023-41064, CVE-2023-37144, and GSD-2023-37144.
• Exploitation Method: The vulnerability is exploited via the mac parameter in the formWriteFacMac function. Attackers can inject malicious commands through this parameter.
• Detection: Monitor network traffic for unusual patterns that may indicate command injection attempts. Look for requests targeting the formWriteFacMac function with suspicious mac parameter values.
• Response: In case of detection, isolate the affected device immediately and update the firmware. Conduct a thorough investigation to determine the extent of the compromise and take appropriate remediation actions.

Conclusion

EUVD-2023-41064 is a critical command injection vulnerability affecting Tenda AC10 devices. The high severity and ease of exploitation make it a significant threat to European cybersecurity. Organizations and individuals should prioritize updating affected devices and implementing robust security measures to mitigate the risk. Continuous monitoring and regular security audits are essential to maintain a strong security posture.

References

For further details, refer to the official vulnerability information:

• GitHub Repository