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alt OWASP DVSA

a Damn Vulnerable Serverless Application


Damn Vulnerable Serverless Application (DVSA) is a deliberately vulnerable application aiming to be an aid for security professionals to test their skills and tools in a legal environment, help developers better understand the processes of securing serverless applications and to aid both students & teachers to learn about serverless application security in a controlled class room environment.

The aim of DVSA is to practice some of the most common serverless vulnerabilities, with a simple straightforward interface.

Please note, there are both documented & undocumented vulnerabilities with this software. This is intentional. You are encouraged to try and discover as many issues as possible.


Disclaimer

Do not install DVSA on a production account

We do not take responsibility for the way in which any one uses this application (DVSA). We have made the purposes of the application clear and it should not be used maliciously. We have given warnings and taken measures to prevent users from installing DVSA on to production accounts.


Deployment

Application Repository

  • Deploy DVSA from the AWS Serverless Application Repository

  • After deployment is complete. Click on 'View CloudFormation Stack'

  • Under 'Outputs' you will find the URL for the application (DVSA Website URL)

Serverless Framework

Prerequisites
  • npm
  • python3
  • Serverless npm install -g serverless
Setting your AWS Account/Region

If you don't want to run with your default aws profile/region, run thhe sls commands with AWS_PROFILE=<aws-profile>/AWS_REGION=<aws-region> or modify the provider.profile/provider.region inside the serverless.yml file

Run

./deploy.sh

Or, Step-by-Step:
  • Install npm dependencies: npm i
  • Install pip dependencies: pip3 install awscli boto3 --user --upgrade
  • Deploy backend: sls deploy
  • Build client: npm run-script client:build
  • Deploy client sls client deploy

Running locally

Run Client

  • npm run-script client:start

Note: This will only work if you previously deployed the backend. If this fails, confirm you still have a be-stack.json file at the root of this project.

Run Backend

  • npm start

If you want to point your local client to your local backend, edit your be-stack.json and set ServiceEndpoint to http://localhost:3000. Note that you will still be using the Cognito pools in AWS.


Email subscription

DVSA sends receipts in the email. You can use the built-in Inbox page within the application to get the emails and obtain the receipts. Each user will be automatically assigned an email from 1secmail.com which will be automatically verified. Real emails will be sent to their account and will appear in the application Inbox page.

If you want users to receive emails to their actual registered email account (e.g. gmail):

  • Send an email verification link to the desired email address, by running the following command (after clicking on the received link, emails will also be sent to their actual email address):

aws ses verify-email-identity --email-address <your_email>


Presentation

Download

Documentation

AWS

see LESSONS for information about hacking DVSA.

see VIDEOS for how to deploy, use and hack DVSA.


Links

OWASP Top 10 - Serverless Interpretation

Deep-Dive into Serverless Attacks - Series

OWASP Serverless Top 10 Project

Twitter account (hackable)

Slack Channel #project-sls-top-10

DVSA blog post

In the News


Acknowledgements

DVSA was created by Tal Melamed


License

Damn Vulnerable Serverless Application (DVSA) is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

Damn Vulnerable Serverless Application (DVSA) is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with Damn Vulnerable Serverless Application (DVSA). If not, see http://www.gnu.org/licenses/.

About

a Damn Vulnerable Serverless Application

http://dvsa.cloud (coming soon)

Resources

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GPL-3.0, GPL-3.0 licenses found

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LICENSE
GPL-3.0
COPYING.txt

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