Getting Started With Cloud One Application Security

Getting Started With Cloud One Application Security

This guide is designed to teach you how to create your own Node.js web application from a bare bones Linux container. We will also equip the application with Cloud One Application Security and then demonstrate how you can exploit a vulnerability in the web application, and how Cloud One Application Security can detect and mitigate these exploitations.

This guide is designed to teach you how to create your own Node.js web application from a bare bones Linux container. We will also equip the application with Cloud One Application Security and then demonstrate how you can exploit a vulnerability in the web application, and how Cloud One Application Security can detect and mitigate these exploitations.

Part 1: Introduction to Containers and Application Security

Before we dive into the setup, I think it’s wise to discuss some key concepts related to containers and container security.

So, what _are _Containers?

_“A container consists of an entire runtime environment: an application, plus all its dependencies, libraries and other binaries, and configuration files needed to run it, bundled into one package. By containerizing the application platform and its dependencies, differences in OS distributions and underlying infrastructure are abstracted away.” — [CIO.com_](https://www.cio.com/article/2924995/what-are-containers-and-why-do-you-need-them.html)

Ah, cool. I noticed that you’re using Docker in this tutorial. What’s Docker?

_Funny you asked: “Docker is a tool designed to make it easier to create, deploy, and run applications by using containers. Containers allow a developer to package up an application with all of the parts it needs, such as libraries and other dependencies, and deploy it as one package.” — [opensource.com_](https://opensource.com/resources/what-docker)

What is Cloud One Application Security?

Cloud One Application Security is a suite of software packages that developers can include in their application code in order to provide runtime application self-protection (RASP). This protects your web applications and allows for security agents to be ‘baked’ into an application code itself, and thus can run in circumstances where there is no access to an operating system; thus serving a need that Deep Security/Workload Security cannot meet.

How are Containers made?

Containers are runtime instances of container images. Container images are snapshots of your application, runtimes, dependencies, and other commands and metadata that you want included in your container at runtime. You create a container runtime instance from a container images using the “Docker run container image” command.

OK, then how are container images made?

Container images are built by Docker at your request. The high level picture is that you create a folder for your application, you then write your application code in that folder, and then you create a Dockerfile in that folder. “Dockerfiles describe how to assemble a private file system for a container, and can also contain some metadata describing how to run a container based on this image.” Once you have everything ready, to create a container image of that folder, you use the “Docker build ” command in the same directory as your application code. This creates a new container image that you can then run.

Great. How do you create a Dockerfile?

Good question. Dockerfiles are written in “Dockerfile syntax”. It’s declarative, and pretty quick to learn. For the basics I’d review the steps in this _[**_article**](https://nodejs.org/de/docs/guides/nodejs-docker-webapp/#creating-a-dockerfile)_ from the Node.js website. It includes everything we’ll use for this tutorial._

Why use containers though?

cloud-one trend-micro nodejs rasp docker

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