CVE-2019-6830 : What You Need to Know

The Modicon M580, in all versions before V2.80, has a vulnerability known as CWE-248: Uncaught Exception. This vulnerability can be exploited by sending a properly timed HTTP request to the controller, potentially leading to a denial of service.

Understanding CVE-2019-6830

The CVE-2019-6830 vulnerability affects Schneider Electric SE's Modicon M580 versions prior to V2.80.

What is CVE-2019-6830?

CVE-2019-6830 is a CWE-248: Uncaught Exception vulnerability in Modicon M580 versions before V2.80. It can result in a denial of service by exploiting the controller with a specifically timed HTTP request.

The Impact of CVE-2019-6830

This vulnerability could allow attackers to disrupt the availability of the affected systems, potentially causing operational downtime and financial losses.

Technical Details of CVE-2019-6830

CVE-2019-6830 affects Schneider Electric SE's Modicon M580 devices.

Vulnerability Description

The vulnerability is categorized as CWE-248: Uncaught Exception, enabling attackers to trigger a denial of service by sending a precisely timed HTTP request.

Affected Systems and Versions

Product: Modicon M580
Vendor: Schneider Electric SE
Versions Affected: All versions prior to V2.80

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a carefully timed HTTP request to the controller, causing a potential denial of service.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent CVE-2019-6830.

Immediate Steps to Take

Update the Modicon M580 devices to version V2.80 or later to mitigate the vulnerability.
Implement network segmentation to limit access to the controller.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch all industrial control systems to prevent known vulnerabilities.
Conduct security assessments and penetration testing to identify and address potential weaknesses.

Patching and Updates

Stay informed about security advisories from Schneider Electric SE and apply patches promptly to secure the systems.