CVE-2018-12122 : Vulnerability Insights and Analysis

Node.js versions prior to 6.15.0, 8.14.0, 10.14.0, and 11.3.0 are vulnerable to Slowloris HTTP Denial of Service attack.

Understanding CVE-2018-12122

Before Node.js versions 6.15.0, 8.14.0, 10.14.0, and 11.3.0, a vulnerability known as Slowloris HTTP Denial of Service exists, allowing attackers to execute DoS attacks.

What is CVE-2018-12122?

This vulnerability enables attackers to conduct Denial of Service attacks by sending headers slowly, keeping HTTP/HTTPS connections open, and tying up associated resources for extended periods.

The Impact of CVE-2018-12122

Attackers can exhaust server resources by maintaining connections open, leading to service unavailability.
It can result in downtime, affecting the availability and performance of Node.js applications.

Technical Details of CVE-2018-12122

Node.js versions prior to 6.15.0, 8.14.0, 10.14.0, and 11.3.0 are susceptible to this vulnerability.

Vulnerability Description

Slowloris HTTP Denial of Service vulnerability in Node.js.

Affected Systems and Versions

All versions before Node.js 6.15.0, 8.14.0, 10.14.0, and 11.3.0.

Exploitation Mechanism

Attackers exploit slow header requests to keep connections open, causing resource exhaustion.

Mitigation and Prevention

It is crucial to take immediate steps and implement long-term security practices to mitigate the risks associated with CVE-2018-12122.

Immediate Steps to Take

Update Node.js to versions 6.15.0, 8.14.0, 10.14.0, or 11.3.0 to patch the vulnerability.
Monitor network traffic for suspicious activities that could indicate a Slowloris attack.

Long-Term Security Practices

Implement rate limiting to prevent slow header attacks.
Regularly update Node.js and other dependencies to address security vulnerabilities.

Patching and Updates

Apply security patches promptly to ensure protection against known vulnerabilities.