offat

OFFAT - OFFensive Api Tester

Automatically Tests for vulnerabilities after generating tests from openapi specification file. Project is in Beta stage, so sometimes it might crash while running.

Security Checks

• Restricted HTTP Methods
• SQLi
• BOLA (Might need few bug fixes)
• Data Exposure (Detects Common Data Exposures)
• BOPLA / Mass Assignment
• Broken Access Control
• Basic Command Injection
• Basic XSS/HTML Injection test
• Basic SSTI test
• Broken Authentication

Features

• Few Security Checks from OWASP API Top 10
• Automated Testing
• User Config Based Testing
• API for Automating tests and Integrating Tool with other platforms/tools
• CLI tool
• Proxy Support
• Secure Dockerized Project for Easy Usage
• Open Source Tool with MIT License
• Github Action

Demo

Note: The columns for 'data_leak' and 'result' in the table represent independent aspects. It's possible for there to be a data leak in the endpoint, yet the result for that endpoint may still be marked as 'Success'. This is because the 'result' column doesn't necessarily reflect the overall test result; it may indicate success even in the presence of a data leak.

Github Action

• Create github action secret url for your repo
• Setup github action workflow in your repo .github/workflows/offat.yml

name: OWASP OFFAT Sample Workflow

on:
  push:
    branches:
      - dev
      - main

jobs:
  test:
    runs-on: ubuntu-latest

    steps:
      - name: "download swagger/OAS file"
        run: curl ${url} -o /tmp/swagger.json
        env:
          url: ${{ secrets.url }}

      - name: "OWASP OFFAT CICD Scanner"
        uses: OWASP/OFFAT@main # OWASP/OFFAT@v0.17.3
        with:
          file: /tmp/swagger.json # or ${{ secrets.url }}
          rate_limit: 120
          artifact_retention_days: 1

Prefer locking action to specific version OWASP/OFFAT@v0.17.3 instead of using OWASP/OFFAT@main and bump OFFAT action version after testing.

PyPi Downloads

Period	Count
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Disclaimer

The disclaimer advises users to use the open-source project for ethical and legitimate purposes only and refrain from using it for any malicious activities. The creators and contributors of the project are not responsible for any illegal activities or damages that may arise from the misuse of the project. Users are solely responsible for their use of the project and should exercise caution and diligence when using it. Any unauthorized or malicious use of the project may result in legal action and other consequences.

Read More

Installation

Using pip

• Install main branch using pip

  python3 -m pip install git+https://github.com/OWASP/OFFAT.git
  

• Install Release from PyPi

  python3 -m pip install offat        # only cli tool
  python3 -m pip install offat[api]   # cli + api
  

Using Containers

Docker

• Build Image

  make local
  

• CLI Tool

  docker run --rm dmdhrumilmistry/offat
  

• API

  docker compose up -d
  

  POST openapi documentation to /api/v1/scan/ endpoint with its valid type (json/yaml); job_id will be returned.

Manual Method

• Open terminal

• Install git package

  sudo apt install git python3 -y
  

• Install Poetry

• clone the repository to your machine

  git clone https://github.com/OWASP/OFFAT.git
  

• Change directory

  cd offat
  

• install with poetry

  # without options
  poetry install
  

Start OffAT

API

• Start API Server

  python -m offat.api
  
  # OR
  
  offat-api
  

• API Documentation can be found at http://localhost:8000/docs

CLI Tool

• Run offat

  offat -f swagger_file.json              # using file
  offat -f https://example.com/docs.json  # using url
  

• To get all the commands use help

  offat -h
  

• Save result in json, yaml or html formats.

  offat -f swagger_file.json -o output.json -of html  # json
  offat -f swagger_file.json -o output.html -of html  # html
  offat -f swagger_file.json -o output.yaml -of yaml  # yaml
  

json format is default output format. yaml format needs to be sanitized before usage since it dumps data as python objects. html format needs more visualization.

• Run tests only for endpoint paths matching regex pattern

  offat -f swagger_file.json -pr '/user'
  

• Add headers to requests

  offat -f swagger_file.json -H 'Accept: application/json' -H 'Authorization: Bearer YourJWTToken'
  

• Run Test with Requests Rate Limited

  offat -f swagger_file.json -rl 1000
  

  rl: requests rate limit per second

• Use along with proxy

  # without ssl check
  offat -f swagger_file.json -p http://localhost:8080 -o output.json -of json # ssl checks are disabled by default to avoid certificate installations
  
  # with ssl check enforced
  offat -f swagger_file.json -p http://localhost:8080 -o output.json -of json --ssl
  

  Make sure that proxy can handle multiple requests at the same time

• Use user provided inputs for generating tests

  offat -f swagger_file.json -tdc test_data_config.yaml
  

  test_data_config.yaml

  actors:
    - actor1:
      request_headers:
        - name: Authorization
          value: Bearer [Token1]
        - name: User-Agent
          value: offat-actor1
  
      query:
        - name: id
          value: 145
          type: int
        - name: country
          value: uk
          type: str
        - name: city
          value: london
          type: str
  
      body:
        - name: name
          value: actorone
          type: str
        - name: email
          value: [e-mail]
          type: str
        - name: phone
          value: [phone]
          type: str
  
      unauthorized_endpoints: # For broken access control
        - "/store/order/.*"
  
    - actor2:
        request_headers:
          - name: Authorization
            value: Bearer [Token2]
          - name: User-Agent
            value: offat-actor2
  
        query:
          - name: id
            value: 199
            type: int
          - name: country
            value: uk
            type: str
          - name: city
            value: leeds
            type: str
  
        body:
          - name: name
            value: actortwo
            type: str
          - name: email
            value: [e-mail]
            type: str
          - name: phone
            value: [phone]
            type: str
  

If you're using Termux or windows, then use pip instead of pip3. Few features are only for linux os, hence they might not work on windows and require admin priviliges.

Open In Google Cloud Shell

• Temporary Session
• Perisitent Session

Have any Ideas 💡 or issue

• Create an issue
• Fork the repo, update script and create a Pull Request

Contributing

Refer CONTRIBUTIONS.md for contributing to the project.

LICENSE

OWASP OFFAT is distributed under MIT License. Refer License for more information.