CVE-2017-0928 : Security Advisory and Response

The html-janitor node module has a vulnerability known as External Control of Critical State Data, allowing users to bypass the sanitization process.

Understanding CVE-2017-0928

This CVE involves a vulnerability in the html-janitor node module that enables external control of critical state data.

What is CVE-2017-0928?

The html-janitor node module is susceptible to an External Control of Critical State Data vulnerability, where users can manipulate the '_sanitized' variable to evade the sanitization process.

The Impact of CVE-2017-0928

This vulnerability can lead to unauthorized data manipulation and potentially compromise the integrity of the sanitization process within the affected systems.

Technical Details of CVE-2017-0928

The technical aspects of the CVE-2017-0928 vulnerability are as follows:

Vulnerability Description

The vulnerability allows users to control the '_sanitized' variable, bypassing the sanitization process and potentially leading to security breaches.

Affected Systems and Versions

Product: html-janitor node module
Vendor: HackerOne
Versions: All versions

Exploitation Mechanism

The exploitation involves manipulating the '_sanitized' variable to circumvent the sanitization mechanism, enabling attackers to introduce malicious content.

Mitigation and Prevention

To address CVE-2017-0928, consider the following mitigation strategies:

Immediate Steps to Take

Update the html-janitor node module to the latest version that includes a patch for the vulnerability.
Implement strict input validation to prevent unauthorized data manipulation.

Long-Term Security Practices

Conduct regular security audits and code reviews to identify and address vulnerabilities promptly.
Educate developers on secure coding practices to prevent similar issues in the future.

Patching and Updates

Stay informed about security updates and patches released by the vendor to address known vulnerabilities promptly.