CVE-2024-54747

Comprehensive Technical Analysis of CVE-2024-54747

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2024-54747 CISA Vulnerability Name: CVE-2024-54747 CVSS Score: 9.8

The vulnerability in question pertains to the WAVLINK WN531P3 202383 device, which contains a hardcoded password in the /etc/shadow file. This allows attackers to gain root access to the device, effectively compromising its security. The CVSS score of 9.8 indicates a critical severity level, highlighting the significant risk this vulnerability poses.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network Access: Attackers can exploit this vulnerability remotely if they have network access to the device.
• Physical Access: An attacker with physical access to the device can also exploit this vulnerability.
• Supply Chain Attacks: Compromised devices could be introduced into the supply chain, pre-configured with malicious settings.

Exploitation Methods:

• Brute Force: Attackers can use brute force techniques to identify the hardcoded password.
• Credential Stuffing: If the hardcoded password is known or leaked, attackers can use it directly to log in as root.
• Automated Scripts: Malicious scripts can be deployed to scan for vulnerable devices and exploit them automatically.

3. Affected Systems and Software Versions

Affected Systems:

• WAVLINK WN531P3 202383 devices

Software Versions:

• All firmware versions prior to the patch release addressing this vulnerability.

4. Recommended Mitigation Strategies

Immediate Actions:

• Firmware Update: Apply the latest firmware update provided by WAVLINK that addresses this vulnerability.
• Network Segmentation: Isolate affected devices on a separate network segment to limit potential damage.
• Access Control: Implement strict access controls and monitor for unauthorized access attempts.

Long-Term Strategies:

• Regular Audits: Conduct regular security audits and vulnerability assessments.
• Patch Management: Establish a robust patch management program to ensure timely updates.
• Intrusion Detection: Deploy intrusion detection systems (IDS) to monitor for suspicious activities.

5. Impact on Cybersecurity Landscape

The presence of hardcoded passwords in critical system files like /etc/shadow underscores the importance of secure coding practices and thorough security testing. This vulnerability highlights the risks associated with IoT devices, which are often deployed in large numbers and can be challenging to secure. The high CVSS score indicates the potential for widespread impact, making it a priority for cybersecurity professionals to address.

6. Technical Details for Security Professionals

Vulnerability Details:

• Location: The hardcoded password is located in the /etc/shadow file, which stores user account information and password hashes.
• Access Level: The vulnerability allows attackers to gain root access, providing full control over the device.

Detection Methods:

• File Integrity Monitoring: Use file integrity monitoring tools to detect unauthorized changes to the /etc/shadow file.
• Log Analysis: Analyze system logs for unusual login attempts or successful logins using the hardcoded password.
• Network Traffic Analysis: Monitor network traffic for unusual patterns that may indicate exploitation attempts.

Mitigation Steps:

• Password Management: Ensure that all default passwords are changed upon device deployment.
• Configuration Hardening: Implement configuration hardening guidelines to minimize the attack surface.
• Incident Response: Develop and test an incident response plan to quickly address any detected exploitation attempts.

References:

• Exploit and Third Party Advisory
• Product Documentation

By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of exploitation and protect their networks from potential attacks.