Corsy : CORS Misconfiguration Scanner

Corsy is a lightweight program that scans for all known mis-configurations in CORS implementations.

Requirements

It only works with Python 3 and has the following depencies:

  • tld
  • requests

To install these dependencies, navigate to the tool directory and execute pip3 install -r requirements.txt

Also Read – Glances : Top/htop Alternative For GNU/Linux, BSD, Mac OS & Windows OS

Usage

Using Corsy is pretty simple

python3 corsy.py -u https://example.com

A delay between consecutive requests can be specified with -d option.

Note: This is a beta version, features such as JSON output and scanning multiple hosts will be added later.

Tests Implemented

  • Pre-domain bypass
  • Post-domain bypass
  • Backtick bypass
  • Null origin bypass
  • Unescaped dot bypass
  • Invalid value
  • Wild card value
  • Origin reflection test
  • Third party allowance test
  • HTTP allowance test
R K

Recent Posts

Kali Linux Commands Cheat Sheet: Complete Quick Reference

This cheat sheet covers the essential Kali Linux commands every pentester and ethical hacker uses…

2 weeks ago

What I Wish I Knew Before Learning Malware Analysis and Reverse Engineering

When I first started learning malware analysis and reverse engineering, I thought the hardest part…

2 weeks ago

git fetch vs git pull: How They Work and When to Use Each

Both git fetch and git pull talk to a remote repository, but they do very different things to your…

4 weeks ago

git cherry-pick Command: Apply Commits from Another Branch

Sometimes the change you need already exists, just on the wrong branch. A hotfix lands…

4 weeks ago

Best Email APIs for Secure Business Email: Why Developers Are Moving Beyond SMTP

Email is still one of the most important communication channels inside modern applications. Password resets,…

4 weeks ago

Nginx Commands in Linux: Start, Stop, Reload, Test, and Log

Nginx is a high-performance web server and reverse proxy trusted by some of the largest…

4 weeks ago