CVE-2018-7160 : What You Need to Know

Node.js version 6.x and later is vulnerable to a DNS rebinding attack, potentially leading to remote code execution when exploited by a malicious website.

Understanding CVE-2018-7160

The Node.js inspector vulnerability in versions 6.x and later exposes it to DNS rebinding attacks, allowing for remote code execution.

What is CVE-2018-7160?

The vulnerability in Node.js inspector starting from version 6.x can be exploited by a malicious website to perform a DNS rebinding attack, enabling remote code execution.

The Impact of CVE-2018-7160

Allows attackers to achieve remote code execution through a DNS rebinding attack
Malicious websites can bypass same-origin-policy checks and establish connections to localhost or hosts on the local network
Enables unauthorized access to Node.js processes with active debug ports

Technical Details of CVE-2018-7160

Node.js vulnerability details and affected systems.

Vulnerability Description

The vulnerability in Node.js inspector versions 6.x and later exposes it to DNS rebinding attacks, facilitating remote code execution by malicious websites.

Affected Systems and Versions

Product: Node.js
Vendor: The Node.js Project
Vulnerable Versions: ^6.0.0 || ^8.0.0 || ^9.0.0

Exploitation Mechanism

Malicious websites can deceive web browsers to allow HTTP connections to localhost or hosts on the local network
Attackers can establish connections with active debug ports on Node.js processes

Mitigation and Prevention

Protective measures to mitigate the CVE-2018-7160 vulnerability.

Immediate Steps to Take

Update Node.js to a non-vulnerable version
Avoid visiting untrusted websites while running Node.js processes
Implement network segmentation to restrict access to Node.js processes

Long-Term Security Practices

Regularly monitor Node.js security advisories and apply patches promptly
Educate users on safe browsing practices and the risks of DNS rebinding attacks

Patching and Updates

Stay informed about security updates from Node.js Project and apply patches as soon as they are available