CVE-2018-14496 Explained : Impact and Mitigation

The Vivotek FD8136 devices have a vulnerability that enables remote memory corruption and remote code execution due to a stack-based buffer overflow. The vendor has disputed this vulnerability, claiming it does not result in a web server crash or any other impact on its performance.

Understanding CVE-2018-14496

This CVE involves a vulnerability in Vivotek FD8136 devices that allows for remote memory corruption and code execution.

What is CVE-2018-14496?

The vulnerability in Vivotek FD8136 devices allows for remote memory corruption and remote code execution due to a stack-based buffer overflow. The affected functions include sprintf, vlocal_buff_4326, and set_getparam.cgi.

The Impact of CVE-2018-14496

The impact of this vulnerability is the potential for remote attackers to corrupt memory and execute arbitrary code on the affected devices.

Technical Details of CVE-2018-14496

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability in Vivotek FD8136 devices is a stack-based buffer overflow that enables remote memory corruption and remote code execution.

Affected Systems and Versions

Product: Vivotek FD8136
Vendor: Vivotek
Versions: All versions are affected

Exploitation Mechanism

The vulnerability can be exploited remotely to trigger the stack-based buffer overflow, leading to memory corruption and code execution.

Mitigation and Prevention

Protecting systems from CVE-2018-14496 requires immediate actions and long-term security practices.

Immediate Steps to Take

Monitor vendor updates and security advisories
Implement network segmentation to limit exposure
Apply firewall rules to restrict access to vulnerable devices

Long-Term Security Practices

Regularly update firmware and software patches
Conduct security assessments and penetration testing
Educate users on safe practices and security awareness

Patching and Updates

Apply patches and updates provided by Vivotek to address the vulnerability