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2 years ago
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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
Usage
let nodeSecurityShield = require('nodesecurityshield');
// Enable Attack Monitoring and/or Blocking
nodeSecurityShield.enableAttackMonitoring(resourceAccessPolicy ,callbackFunction);
Sample resourceAccessPolicy
"outBoundRequest" : {
"blockedDomains" : ["*.123.com", "stats.abc.com", 'xyz.com'],
"allowedDomains" : ["*.domdog.io"]
}
};
Sample callbackFunction for Attack Monitoring
console.log(violationEvent);
}
Sample callbackFunction for Attack Blocking
throw new Error("Request Blocked. It violates declared Resource Access Policy.")
}
Sample violationEvent
"violationtType": "Outbound Request",
"message": "Outbound request to 'www.malicious.com' violates declared 'Resource Access Policy (RAP)'.",
"policy": {
"outBoundRequest" : {
"blockedDomains" : ["*.123.com", "stats.abc.com", 'xyz.com'],
"allowedDomains" : ["*.domdog.io"]
}
}
Integrating with Sentry
Sample callbackFunction to integrate with Sentry
var e = new Error();
e.name = 'Resource Access Policy Violation';
e.message = JSON.stringify(violationEvent);
Sentry.captureException(e);
}
Screenshot from Sentry dashboard
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