CVE-2018-3723 : Security Advisory and Response

The defaults-deep node module before version 0.2.4 is vulnerable to Modification of Assumed-Immutable Data (MAID) allowing unauthorized manipulation of the prototype of "Object".

Understanding CVE-2018-3723

This CVE involves a vulnerability in the defaults-deep node module that could be exploited by unauthorized users.

What is CVE-2018-3723?

The vulnerability in the defaults-deep node module, versions before 0.2.4, allows unauthorized users to manipulate the prototype of "Object" using proto, leading to the addition or modification of properties present on all objects.

The Impact of CVE-2018-3723

The vulnerability enables attackers to modify assumed-immutable data, potentially leading to unauthorized changes in the behavior of affected systems.

Technical Details of CVE-2018-3723

The technical aspects of the CVE.

Vulnerability Description

The defaults-deep node module, prior to version 0.2.4, is susceptible to Modification of Assumed-Immutable Data (MAID) vulnerability, allowing unauthorized manipulation of the prototype of "Object".

Affected Systems and Versions

Product: defaults-deep node module
Vendor: HackerOne
Vulnerable Versions: Versions before 0.2.4

Exploitation Mechanism

The vulnerability can be exploited by unauthorized users manipulating the prototype of "Object" using proto, resulting in unauthorized property additions or modifications.

Mitigation and Prevention

Ways to address and prevent the CVE.

Immediate Steps to Take

Update the defaults-deep node module to version 0.2.4 or later.
Monitor for any unauthorized changes in the system behavior.

Long-Term Security Practices

Regularly review and update dependencies to mitigate potential vulnerabilities.
Implement secure coding practices to prevent similar issues in the future.

Patching and Updates

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