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NodeSecurityShield is a Developer and Security Engineer friendly package for Securing NodeJS Applications.

Inspired by the log4J vulnerability (CVE-2021-44228) which can be exploited because an application can make arbitrary network calls.

We felt there is an need for an application to declare what privileges it can have so that exploitation of such vulnerabilities becomes harder.

To achieve this, NSS (Node Security Shield) has Resource Access Policy.

Resource Access Policy (RAP)

Resource Access Policy is similar to CSP(Content Security Policy).

It lets the developer/security engineer declare what resources an application should access. And Node Security Shield will enforce it.

Installation

Install Node Security Shield using npm

npm install nodesecurityshield

Usage

// Require Node Security Shield
let nodeSecurityShield = require(‘nodesecurityshield’);
// Enable Attack Monitoring and/or Blocking
nodeSecurityShield.enableAttackMonitoring(resourceAccessPolicy ,callbackFunction);

Sample resourceAccessPolicy

const resourceAccessPolicy = {
“outBoundRequest” : {
“blockedDomains” : [“.123.com”, “stats.abc.com”, ‘xyz.com’], “allowedDomains” : [“.domdog.io”]
}
};

Sample callbackFunction for Attack Monitoring

var callbackFunction = function (violationEvent) {
console.log(violationEvent);
}

Sample callbackFunction for Attack Blocking

var callbackFunction = function (violationEvent) {
throw new Error(“Request Blocked. It violates declared Resource Access Policy.”)
}

Integrating with Sentry

Sample resourceAccessPolicyto integrate with Sentry

const resourceAccessPolicy = {
“reportUriHosts” : [“ingest.sentry.io”],
“outBoundRequest” : {
“blockedDomains” : [“.123.com”, “stats.abc.com”, ‘xyz.com’], “allowedDomains” : [“.domdog.io”]
}
};

Features

• Attack Monitoring
  • Outbound Network Calls
• Attack Blocking
  • Outbound Network Calls