CVE-2018-3719 : Exploit Details and Defense Strategies

The mixin-deep node module, prior to version 1.3.1, has a vulnerability known as Modification of Assumed-Immutable Data (MAID) that allows an attacker to manipulate the prototype of "Object" using proto, leading to unauthorized property additions or modifications.

Understanding CVE-2018-3719

This CVE involves a security vulnerability in the mixin-deep node module that can be exploited to alter the prototype of objects.

What is CVE-2018-3719?

The CVE-2018-3719 vulnerability in the mixin-deep node module allows attackers to modify the prototype of "Object" using proto, enabling unauthorized property changes across all objects.

The Impact of CVE-2018-3719

The vulnerability permits malicious users to manipulate object prototypes, potentially leading to unauthorized property additions or modifications across various objects in affected systems.

Technical Details of CVE-2018-3719

The technical aspects of the CVE-2018-3719 vulnerability in the mixin-deep node module.

Vulnerability Description

The vulnerability enables attackers to alter the prototype of "Object" using proto, allowing them to add or modify properties that affect all objects.

Affected Systems and Versions

Product: mixin-deep node module
Vendor: HackerOne
Versions Affected: Versions before 1.3.1

Exploitation Mechanism

The vulnerability is exploited by manipulating the prototype of objects using proto, enabling unauthorized property changes across all objects.

Mitigation and Prevention

Measures to address and prevent the CVE-2018-3719 vulnerability.

Immediate Steps to Take

Update the mixin-deep node module to version 1.3.1 or later to mitigate the vulnerability.
Monitor for any unauthorized property additions or modifications in affected systems.

Long-Term Security Practices

Regularly update software components to patch known vulnerabilities.
Implement secure coding practices to prevent similar issues in the future.

Patching and Updates

Ensure timely application of security patches and updates to prevent exploitation of known vulnerabilities.