CVE-2019-18826 Explained : Impact and Mitigation

Barco ClickShare Button R9861500D01 devices before version 1.9.0 have a vulnerability related to certificate chain validation.

Understanding CVE-2019-18826

Devices prior to version 1.9.0 of the Barco ClickShare Button experience a flaw in certificate chain validation.

What is CVE-2019-18826?

The 'dongle_bridge' program used to enable USB host access fails to validate the complete certificate chain, leading to a security issue.

The Impact of CVE-2019-18826

This vulnerability could allow attackers to exploit the lack of proper certificate validation, potentially leading to unauthorized access or data interception.

Technical Details of CVE-2019-18826

Barco ClickShare Button devices are affected by a flaw in certificate chain validation.

Vulnerability Description

The 'dongle_bridge' program does not correctly validate the certificate chain, exposing devices to potential security risks.

Affected Systems and Versions

Product: Barco ClickShare Button (model number R9861500D01)
Versions Affected: Devices before version 1.9.0

Exploitation Mechanism

Attackers could exploit this vulnerability by leveraging the inadequate certificate validation to gain unauthorized access to the device or intercept data.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Update affected devices to version 1.9.0 or later to mitigate the vulnerability.
Implement network segmentation to limit exposure of vulnerable devices.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities.
Conduct security assessments and audits to identify and address potential weaknesses.

Patching and Updates

Barco has released firmware updates to address this vulnerability. Ensure all devices are promptly updated to the latest version.