CVE-2020-12125 : What You Need to Know

A remote buffer overflow vulnerability in the /cgi-bin/makeRequest.cgi endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 allows an attacker to execute arbitrary machine instructions as root without authentication.

Understanding CVE-2020-12125

This CVE describes a critical remote buffer overflow vulnerability in a specific endpoint of the WAVLINK WN530H4 device, enabling unauthorized execution of machine instructions.

What is CVE-2020-12125?

The vulnerability in the /cgi-bin/makeRequest.cgi endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 allows attackers to run arbitrary machine instructions with root privileges without needing authentication.

The Impact of CVE-2020-12125

The exploitation of this vulnerability could lead to unauthorized access and control of the affected device, potentially resulting in severe security breaches and compromise of sensitive data.

Technical Details of CVE-2020-12125

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability is a remote buffer overflow issue in the /cgi-bin/makeRequest.cgi endpoint of the WAVLINK WN530H4 M30H4.V5030.190403, enabling attackers to execute unauthorized machine instructions.

Affected Systems and Versions

Affected Systems: WAVLINK WN530H4 M30H4.V5030.190403
Affected Versions: Not specified

Exploitation Mechanism

The vulnerability can be exploited remotely by sending specially crafted requests to the vulnerable /cgi-bin/makeRequest.cgi endpoint, triggering the buffer overflow and executing malicious code.

Mitigation and Prevention

Protecting systems from this vulnerability requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable or restrict access to the vulnerable /cgi-bin/makeRequest.cgi endpoint if possible.
Apply vendor-supplied patches or updates to address the vulnerability.

Long-Term Security Practices

Regularly monitor and update firmware and software to prevent similar vulnerabilities.
Implement network segmentation and access controls to limit exposure to potential attacks.

Patching and Updates

Ensure timely application of security patches and updates provided by WAVLINK to mitigate the vulnerability effectively.