A sample web application using Node.js, Express and Angular that is vulnerable to common security vulnerabilities.
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README.md

vulnerable-app & attacker-app

There are two applications within this repository that were generated from the HotTowel Angular generator. The main one is the vulnerable-app which is found in the /src folder. This application was built intentionally built out with vulnerabilities to easily demonstrate how they are performed by an attacker. The secondary application is the attacker-app found in the /attacker-app folder and it was built out to assist in demonstrating an attacker's website that is exploiting the vulnerabilities in the vulnerable-app.

Requirements

  1. Node.js v4.2.x
  2. NPM v3.10.x

Straying from these versions may result in unanticipated behavior and it cannot be guaranteed the app will produce the expected results.

How to Run Both Apps

  1. Open your terminal and cd to the root folder for this repository
  2. Run gulp serve-dev to spin up the vulnerable-app
  3. You should see your browser open up a new tab to the following URL: http://localhost:3000
  4. Open a new terminal window or tab and cd to the /attacker-app folder from the root location of this repository
  5. Run gulp serve-dev
  6. You should see your browser open up another new tab to the following URL: http://localhost:3002

How to Test

XSS

The following steps will demonstrate a simple example of being able to escape the context of where the search input text is printed on screen and used to execute an injectable script that the browser will execute.

  1. In the tab that's running the vulnerable-app, click on the option XSS-Search in the navigation bar
  2. In the "Search" field enter the following text: <script>alert('Malicious Script!');</script>
  3. Click the "Submit" button
  4. You should see an alert message pop up on your screen with the message "Malicious Script!"

CSRF

The following steps will demonstrate a simple example of being able to submit requests on behalf of the logged in user within the vulnerable-app, but executed from the attacker-app.

  1. In the tab that's running the vulnerable-app, click on the option CSRF in the navigation bar and take note of the "User Profile" section within the view

    By default, the user's "First Name" should show the value of Jim and the "Last Name" as the value of Bob

  2. In the tab that's running the attacker-app, click on the option CSRF-Attack in the navigation bar. This will immediately execute the CSRF attack and display the forged POST data

  3. Go back to the tab that's running the vulnerable-app and make sure you're still in the CSRF view
  4. Click the "Get Latest User Profile" button and you should see that the user's profile was changed due to the CSRF attack

    The user's "First Name" should show the value of Evil and the "Last Name" as the value of Hacker now

Clickjacking

The following steps will demonstrate a simple example of clickjacking by tricking the user of the vulnerable-app to click a seemingly harmless button in the attacker-app that actually executes an action in the vulnerable-app.

  1. In the tab that's running the attacker-app, click on the option Clickjacking-Attack

    You should be able to see that the vulnerable-app is loaded in the view, but with a low opacity

  2. Open the developer tools for the browser you're using and view the console

  3. Click the "Click to see awesome dog backflips!" button

    You should see a message in the console with the following text: "The profile was successfully deleted!"

This example demonstrates that while the user thinks they're clicking on a button that will show them "awesome dog backflips", they're actually clicking on the "Delete Sensitive Information!" button found in the vulnerable-app. This is accomplished because the attacker-app can load the vulnerable-app in an iframe html element, style the iframe so it's not visible at all (in this case it is somewhat visible for demonstration purposes) and actually a "layer" deep from other html elements within the view, and place "clickbait" type elements on top of the iframe and over the areas the attacker wants the user to click within the iframe instead.

References/Further Reading

  1. OWASP
    1. Cross-site Scripting Defense Cheat Sheet
    2. Cross-site Request Forgery Defense Cheat Sheet
    3. Clickjacking Defense Cheat Sheet
  2. HTML5Rocks - CSP
  3. Angular $sanitize
  4. Angular $sce
  5. xss-filters
  6. lusca

Generated from HotTowel Angular

Opinionated Angular style guide for teams by @john_papa

More details about the styles and patterns used in this app can be found in my Angular Style Guide and my Angular Patterns: Clean Code course at Pluralsight and working in teams.

Prerequisites

  1. Install Node.js

  2. Install Yeoman npm install -g yo

  3. Install these NPM packages globally

    npm install -g bower gulp nodemon

    Refer to these instructions on how to not require sudo

Running HotTowel

Linting

  • Run code analysis using gulp vet. This runs jshint, jscs, and plato.

Tests

  • Run the unit tests using gulp test (via karma, mocha, sinon).

Running in dev mode

  • Run the project with gulp serve-dev

  • opens it in a browser and updates the browser with any files changes.

Building the project

  • Build the optimized project using gulp build
  • This create the optimized code for the project and puts it in the build folder

Running the optimized code

  • Run the optimize project from the build folder with gulp serve-build

Exploring HotTowel

HotTowel Angular starter project

Structure

The structure also contains a gulpfile.js and a server folder. The server is there just so we can serve the app using node. Feel free to use any server you wish.

/src
    /client
        /app
        /content

Installing Packages

When you generate the project it should run these commands, but if you notice missing packages, run these again:

  • npm install
  • bower install

The Modules

The app has 4 feature modules and depends on a series of external modules and custom but cross-app modules

app --> [
        app.admin --> [
            app.core,
            app.widgets
        ],
        app.dashboard --> [
            app.core,
            app.widgets
        ],
        app.layout --> [
            app.core
        ],
        app.widgets,
        app.core --> [
            ngAnimate,
            ngSanitize,
            ui.router,
            blocks.exception,
            blocks.logger,
            blocks.router
        ]
    ]

core Module

Core modules are ones that are shared throughout the entire application and may be customized for the specific application. Example might be common data services.

This is an aggregator of modules that the application will need. The core module takes the blocks, common, and Angular sub-modules as dependencies.

blocks Modules

Block modules are reusable blocks of code that can be used across projects simply by including them as dependencies.

blocks.logger Module

The blocks.logger module handles logging across the Angular app.

blocks.exception Module

The blocks.exception module handles exceptions across the Angular app.

It depends on the blocks.logger module, because the implementation logs the exceptions.

blocks.router Module

The blocks.router module contains a routing helper module that assists in adding routes to the $routeProvider.

Gulp Tasks

Task Listing

  • gulp help

    Displays all of the available gulp tasks.

Code Analysis

  • gulp vet

    Performs static code analysis on all javascript files. Runs jshint and jscs.

  • gulp vet --verbose

    Displays all files affected and extended information about the code analysis.

  • gulp plato

    Performs code analysis using plato on all javascript files. Plato generates a report in the reports folder.

Testing

  • gulp serve-specs

    Serves and browses to the spec runner html page and runs the unit tests in it. Injects any changes on the fly and re runs the tests. Quick and easy view of tests as an alternative to terminal via gulp test.

  • gulp test

    Runs all unit tests using karma runner, mocha, chai and sinon with phantomjs. Depends on vet task, for code analysis.

  • gulp test --startServers

    Runs all unit tests and midway tests. Cranks up a second node process to run a server for the midway tests to hit a web api.

  • gulp autotest

    Runs a watch to run all unit tests.

  • gulp autotest --startServers

    Runs a watch to run all unit tests and midway tests. Cranks up a second node process to run a server for the midway tests to hit a web api.

Cleaning Up

  • gulp clean

    Remove all files from the build and temp folders

  • gulp clean-images

    Remove all images from the build folder

  • gulp clean-code

    Remove all javascript and html from the build folder

  • gulp clean-fonts

    Remove all fonts from the build folder

  • gulp clean-styles

    Remove all styles from the build folder

Fonts and Images

  • gulp fonts

    Copy all fonts from source to the build folder

  • gulp images

    Copy all images from source to the build folder

Styles

  • gulp styles

    Compile less files to CSS, add vendor prefixes, and copy to the build folder

Bower Files

  • gulp wiredep

    Looks up all bower components' main files and JavaScript source code, then adds them to the index.html.

    The .bowerrc file also runs this as a postinstall task whenever bower install is run.

Angular HTML Templates

  • gulp templatecache

    Create an Angular module that adds all HTML templates to Angular's $templateCache. This pre-fetches all HTML templates saving XHR calls for the HTML.

  • gulp templatecache --verbose

    Displays all files affected by the task.

Serving Development Code

  • gulp serve-dev

    Serves the development code and launches it in a browser. The goal of building for development is to do it as fast as possible, to keep development moving efficiently. This task serves all code from the source folders and compiles less to css in a temp folder.

  • gulp serve-dev --nosync

    Serves the development code without launching the browser.

  • gulp serve-dev --debug

    Launch debugger with node-inspector.

  • gulp serve-dev --debug-brk

    Launch debugger and break on 1st line with node-inspector.

Building Production Code

  • gulp optimize

    Optimize all javascript and styles, move to a build folder, and inject them into the new index.html

  • gulp build

    Copies all fonts, copies images and runs gulp optimize to build the production code to the build folder.

Serving Production Code

  • gulp serve-build

    Serve the optimized code from the build folder and launch it in a browser.

  • gulp serve-build --nosync

    Serve the optimized code from the build folder and manually launch the browser.

  • gulp serve-build --debug

    Launch debugger with node-inspector.

  • gulp serve-build --debug-brk

    Launch debugger and break on 1st line with node-inspector.

Bumping Versions

  • gulp bump

    Bump the minor version using semver. --type=patch // default --type=minor --type=major --type=pre --ver=1.2.3 // specific version

License

MIT

Credits

This a fork of Clarkio's vulnerable-app repo.