CVE-2020-27543 : Security Advisory and Response

The restify-paginate package 0.0.5 for Node.js is vulnerable to a Denial-of-Service attack due to a missing HTTP Host header, potentially leading to a crash in Restify-based web services.

Understanding CVE-2020-27543

This CVE entry describes a specific vulnerability in the restify-paginate package for Node.js.

What is CVE-2020-27543?

The vulnerability in the restify-paginate package allows remote attackers to trigger a Denial-of-Service by omitting the HTTP Host header, causing a crash in Restify-based web services.

The Impact of CVE-2020-27543

The exploitation of this vulnerability can lead to service disruption and potential uncaught exceptions in affected web services.

Technical Details of CVE-2020-27543

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in the restify-paginate package 0.0.5 allows for a Denial-of-Service attack through the omission of the HTTP Host header.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: 0.0.5 (affected)

Exploitation Mechanism

The vulnerability can be exploited by remote attackers sending requests without the required HTTP Host header, leading to service crashes.

Mitigation and Prevention

Protecting systems from CVE-2020-27543 requires specific actions to mitigate risks.

Immediate Steps to Take

Update the restify-paginate package to a patched version that addresses the vulnerability.
Implement proper input validation to prevent malicious requests.

Long-Term Security Practices

Regularly monitor and update dependencies to ensure vulnerabilities are promptly addressed.
Conduct security assessments and penetration testing to identify and remediate potential weaknesses.

Patching and Updates

Stay informed about security advisories and updates related to the restify-paginate package.
Apply patches and updates promptly to mitigate the risk of exploitation.