CVE-2020-15133 : Security Advisory and Response

In faye-websocket before version 0.11.0, there is a lack of certification validation in TLS handshakes, making it vulnerable to man-in-the-middle attacks.

Understanding CVE-2020-15133

This CVE involves a vulnerability in faye-websocket that allows for potential man-in-the-middle attacks due to the lack of TLS certificate validation.

What is CVE-2020-15133?

CVE-2020-15133 is a security vulnerability in faye-websocket versions prior to 0.11.0 that exposes connections to potential man-in-the-middle attacks by not verifying TLS certificates.

The Impact of CVE-2020-15133

The vulnerability has a CVSS base score of 8 (High severity) and affects confidentiality, integrity, and requires user interaction for exploitation.

Technical Details of CVE-2020-15133

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

Vulnerability Description

The

Faye::WebSocket::Client

class in faye-websocket does not perform certificate validation during TLS handshakes, leaving connections vulnerable to interception.

Affected Systems and Versions

Product: faye-websocket
Vendor: faye
Versions Affected: < 0.11.0

Exploitation Mechanism

Attack Complexity: High
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Scope: Changed

Mitigation and Prevention

To address CVE-2020-15133, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Upgrade

faye-websocket

to version 0.11.0 or higher.
Implement additional security measures for TLS certificate validation.

Long-Term Security Practices

Regularly update software components to the latest versions.
Conduct security assessments and audits to identify vulnerabilities.

Patching and Updates

Stay informed about security advisories and patches released by the vendor.