CVE-2018-6402 : Vulnerability Insights and Analysis

The Ecobee Ecobee4 4.2.0.171 devices are vulnerable to being forced to disconnect from an encrypted Wi-Fi network and connect to an unencrypted one with the same SSID, potentially exposing them to attacks like an "Evil Twin" scenario.

Understanding CVE-2018-6402

This CVE describes a security vulnerability in Ecobee Ecobee4 4.2.0.171 devices that could lead to unauthorized network access.

What is CVE-2018-6402?

The vulnerability allows attackers to trick the device into connecting to a malicious unencrypted Wi-Fi network by creating a fake SSID that appears as the legitimate network.

The Impact of CVE-2018-6402

Exploiting this vulnerability could result in unauthorized access to the device and potentially sensitive information, posing a security risk to users.

Technical Details of CVE-2018-6402

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability enables attackers to force Ecobee4 devices to disconnect from an encrypted Wi-Fi network and connect to an unencrypted network with the same SSID.

Affected Systems and Versions

Product: Ecobee Ecobee4 4.2.0.171
Vendor: Ecobee
Version: 4.2.0.171

Exploitation Mechanism

Attackers create a nearby SSID resembling the target network to lure the device into connecting to the malicious network.

Mitigation and Prevention

Protecting against CVE-2018-6402 involves taking immediate and long-term security measures.

Immediate Steps to Take

Avoid connecting to unknown Wi-Fi networks.
Regularly check for software updates from Ecobee.

Long-Term Security Practices

Use strong, unique passwords for Wi-Fi networks.
Enable network encryption protocols like WPA2.

Patching and Updates

Apply security patches and firmware updates provided by Ecobee to address this vulnerability.