CVE-2018-3728 : Security Advisory and Response

Versions of the hoek node module prior to 4.2.0 and between 5.0.x and 5.0.3 have a vulnerability known as Modification of Assumed-Immutable Data (MAID). This vulnerability allows a malicious user to manipulate the 'merge' and 'applyToDefaults' functions, enabling modifications to the 'Object' prototype using proto.

Understanding CVE-2018-3728

This CVE involves a vulnerability in the hoek node module that can be exploited by attackers to modify assumed-immutable data.

What is CVE-2018-3728?

The CVE-2018-3728 vulnerability in the hoek node module allows malicious users to make unauthorized modifications to the 'Object' prototype, potentially impacting all objects in the system.

The Impact of CVE-2018-3728

Malicious users can add or modify properties that affect all objects in the system.

Technical Details of CVE-2018-3728

The technical aspects of the CVE-2018-3728 vulnerability.

Vulnerability Description

The vulnerability allows unauthorized modifications to the 'Object' prototype using proto.

Affected Systems and Versions

Product: hoek node module
Vendor: hapi
Versions Affected: Versions before 5.0.3

Exploitation Mechanism

Exploited through the 'merge' and 'applyToDefaults' functions.

Mitigation and Prevention

Ways to mitigate and prevent the CVE-2018-3728 vulnerability.

Immediate Steps to Take

Update the hoek node module to version 5.0.3 or later.
Monitor for any unauthorized changes to the 'Object' prototype.

Long-Term Security Practices

Regularly review and update dependencies to prevent vulnerabilities.
Implement code reviews to catch potential security issues early.

Patching and Updates

Apply patches and updates provided by the vendor to address the vulnerability.