CVE-2018-20410 : What You Need to Know

WellinTech KingSCADA before version 3.7.0.0.1 is affected by a stack-based buffer overflow vulnerability that can be exploited by sending a specially crafted packet to the AlarmServer service.

Understanding CVE-2018-20410

This CVE identifies a critical security issue in WellinTech KingSCADA software.

What is CVE-2018-20410?

The vulnerability in WellinTech KingSCADA allows attackers to trigger a stack-based buffer overflow by sending a malicious packet to the AlarmServer service.

The Impact of CVE-2018-20410

Exploiting this vulnerability can lead to remote code execution, denial of service, or unauthorized access to the affected system.

Technical Details of CVE-2018-20410

WellinTech KingSCADA vulnerability specifics.

Vulnerability Description

A stack-based buffer overflow exists in WellinTech KingSCADA versions prior to 3.7.0.0.1, triggered by sending a crafted packet to the AlarmServer service.

Affected Systems and Versions

WellinTech KingSCADA versions before 3.7.0.0.1

Exploitation Mechanism

Attackers exploit the vulnerability by sending a specifically crafted packet to the AlarmServer service on TCP port 12401.

Mitigation and Prevention

Protecting systems from CVE-2018-20410.

Immediate Steps to Take

Update WellinTech KingSCADA to version 3.7.0.0.1 or later.
Implement network segmentation to limit access to vulnerable services.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update software and apply security patches.
Conduct security assessments and penetration testing to identify vulnerabilities.
Educate users on safe computing practices and awareness of social engineering tactics.
Employ intrusion detection and prevention systems.
Consider implementing application whitelisting and least privilege access controls.

Patching and Updates

WellinTech has released version 3.7.0.0.1 to address the vulnerability. Ensure all systems are updated to this patched version.