CVE-2018-10943 : Security Advisory and Response

Barco ClickShare CSE-200 and CS-100 Base Units with firmware versions prior to 1.6.0.3 are vulnerable to a specific timing attack that can lead to a crash and disconnection of all connected clients.

Understanding CVE-2018-10943

Barco ClickShare devices are susceptible to a critical vulnerability that can be exploited to crash the Base Unit and disconnect all connected clients.

What is CVE-2018-10943?

A timing attack on TCP port 7100 of Barco ClickShare CSE-200 and CS-100 Base Units with firmware versions before 1.6.0.3 can cause a crash and disconnection of all clients.

The Impact of CVE-2018-10943

Exploiting this vulnerability can result in a denial of service (DoS) situation where all users connected to the affected Base Units are disconnected, leading to potential disruptions in collaboration and presentations.

Technical Details of CVE-2018-10943

Barco ClickShare CSE-200 and CS-100 Base Units are affected by a critical vulnerability due to improper handling of unexpected strings on TCP port 7100.

Vulnerability Description

Sending a specific unexpected string to TCP port 7100 with precise timing can trigger a crash in the Base Unit, disconnecting all connected clients.

Affected Systems and Versions

Barco ClickShare CSE-200 and CS-100 Base Units
Firmware versions prior to 1.6.0.3

Exploitation Mechanism

Attacker sends an arbitrary unexpected string to TCP port 7100 with specific timing
Results in crashing the Base Unit and disconnecting all connected clients

Mitigation and Prevention

Immediate Steps to Take:

Update affected devices to firmware version 1.6.0.3 or later
Monitor network traffic for any suspicious activities targeting TCP port 7100 Long-Term Security Practices:
Regularly update firmware and software on all network-connected devices
Implement network segmentation to isolate critical devices from potential attacks
Conduct security training for users to recognize and report suspicious activities

Patching and Updates

Ensure all Barco ClickShare CSE-200 and CS-100 Base Units are updated to firmware version 1.6.0.3 or above to mitigate the vulnerability and prevent potential crashes and disconnections.