CVE-2021-44908 : Security Advisory and Response

SailsJS Sails.js <=1.4.0 is vulnerable to Prototype Pollution via controller/load-action-modules.js, function loadActionModules().

Understanding CVE-2021-44908

What is CVE-2021-44908?

SailsJS Sails.js <=1.4.0 is susceptible to a Prototype Pollution vulnerability through the controller/load-action-modules.js file and the loadActionModules() function.

The Impact of CVE-2021-44908

This vulnerability allows attackers to manipulate the prototype of objects and potentially perform malicious actions such as code execution or privilege escalation.

Technical Details of CVE-2021-44908

Vulnerability Description

The vulnerability arises from inadequate input validation in the loadActionModules() function within the controller/load-action-modules.js file, leading to possible Prototype Pollution.

Affected Systems and Versions

Product: SailsJS Sails.js
Version: <=1.4.0

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious inputs to manipulate the prototype of objects, leading to unauthorized control over the application's behavior.

Mitigation and Prevention

Immediate Steps to Take

Update SailsJS to version 1.4.1 or later to patch the vulnerability.
Implement input validation mechanisms to sanitize user inputs and prevent injection attacks.

Long-Term Security Practices

Regularly monitor and update dependencies to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate security weaknesses.

Patching and Updates

Apply security patches and updates provided by SailsJS promptly to mitigate the Prototype Pollution vulnerability.