CVE-2020-6804 : Exploit Details and Defense Strategies

A reflected XSS vulnerability in Mozilla WebThings Gateway allows attackers to create a malicious URL to steal user authentication tokens, potentially leading to system compromise when combined with CVE-2020-6803.

Understanding CVE-2020-6804

This CVE involves a security vulnerability in the WebThings Gateway by Mozilla.

What is CVE-2020-6804?

CVE-2020-6804 is a reflected XSS vulnerability in the Mozilla WebThings Gateway, enabling attackers to craft URLs to steal user authentication tokens.

The Impact of CVE-2020-6804

CVSS Base Score: 8.8 (High)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2020-6804

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows attackers to execute reflected XSS attacks, potentially compromising user authentication tokens.

Affected Systems and Versions

Affected Product: WebThings Gateway
Vendor: Mozilla
Vulnerable Versions:
Version 0.3.0 (custom)
Versions prior to 0.12.0

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious URLs to trick users into revealing their authentication tokens.

Mitigation and Prevention

Protecting systems from CVE-2020-6804 requires immediate actions and long-term security practices.

Immediate Steps to Take

Avoid sharing the gateway address publicly
Refrain from clicking on links leading to the gateway, especially the login page

Long-Term Security Practices

Regularly update the WebThings Gateway software
Implement strong authentication mechanisms

Patching and Updates

Apply the patch provided by Mozilla to address the vulnerability.