EUVD-2024-35164

Comprehensive Technical Analysis of EUVD-2024-35164

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2024-35164, also known as CVE-2024-34544, is a command injection vulnerability in the wireless.cgi AddMac() functionality of the Wavlink AC3000 M33A8.V5030.210505 firmware. This vulnerability allows an attacker to execute arbitrary commands on the affected device through a specially crafted HTTP request. The CVSS (Common Vulnerability Scoring System) base score of 9.1 indicates a critical severity level.

CVSS Vector Breakdown:

• AV:N (Network Vector): The vulnerability is exploitable over the network.
• AC:L (Low Complexity): The attack requires low skill or resources.
• PR:H (High Privileges Required): The attacker needs high privileges (authenticated access).
• UI:N (No User Interaction): No user interaction is required.
• S:C (Changed Scope): The vulnerability can affect resources beyond the security scope managed by the security authority.
• C:H (High Confidentiality Impact): There is a high impact on the confidentiality of the system.
• I:H (High Integrity Impact): There is a high impact on the integrity of the system.
• A:H (High Availability Impact): There is a high impact on the availability of the system.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Authenticated HTTP Request: An attacker with valid credentials can send a crafted HTTP request to the wireless.cgi endpoint, injecting malicious commands.
• Phishing and Credential Theft: Attackers may use phishing techniques to obtain valid credentials, allowing them to exploit the vulnerability.

Exploitation Methods:

• Command Injection: By injecting commands into the HTTP request, an attacker can execute arbitrary commands on the device.
• Privilege Escalation: Once authenticated, the attacker can escalate privileges to gain full control over the device.

3. Affected Systems and Software Versions

Affected Systems:

• Wavlink AC3000 wireless routers.

Affected Software Versions:

• Firmware version M33A8.V5030.210505.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Firmware Update: Apply the latest firmware update provided by Wavlink to patch the vulnerability.
• Access Control: Implement strict access controls to limit authenticated access to the device.
• Network Segmentation: Segment the network to isolate critical systems and reduce the attack surface.

Long-Term Mitigation:

• Regular Patching: Ensure regular updates and patches are applied to all network devices.
• Monitoring and Logging: Implement robust monitoring and logging to detect and respond to suspicious activities.
• User Education: Educate users about phishing attacks and the importance of strong, unique passwords.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to European organizations and individuals using the affected Wavlink AC3000 routers. Given the critical nature of the vulnerability, successful exploitation could lead to:

• Data Breaches: Unauthorized access to sensitive information.
• Service Disruption: Compromise of network availability and integrity.
• Compliance Issues: Potential violations of GDPR and other regulatory requirements.

6. Technical Details for Security Professionals

Vulnerability Details:

• Endpoint: wireless.cgi
• Function: AddMac()
• Exploit Method: Crafted HTTP request with injected commands.

Detection and Response:

• Intrusion Detection Systems (IDS): Configure IDS to detect unusual HTTP requests targeting the wireless.cgi endpoint.
• Log Analysis: Regularly review logs for suspicious activities, especially authenticated requests to the wireless.cgi endpoint.
• Incident Response Plan: Develop and implement an incident response plan to quickly address any detected exploitation attempts.

References:

• Talos Intelligence Report: TALOS-2024-2044

Conclusion: The command injection vulnerability in the Wavlink AC3000 router is critical and requires immediate attention. Organizations should prioritize firmware updates, implement robust access controls, and enhance monitoring to mitigate the risk. The European cybersecurity landscape must remain vigilant against such vulnerabilities to protect against potential data breaches and service disruptions.