Corsy
CORS Misconfiguration Scanner
### Introduction
Corsy is a lightweight program that scans for all known misconfigurations in CORS implementations.
### Requirements
Corsy only works with `Python 3` and has just one dependency:
- `requests`
To install this dependency, navigate to Corsy directory and execute `pip3 install requests`
### Usage
Using Corsy is pretty simple
`python3 corsy.py -u https://example.com`
##### Scan URLs from a file
`python3 corsy.py -i /path/urls.txt`
##### Scan URLs from stdin
`cat urls.txt | python3 corsy.py`
##### Number of threads
`python3 corsy.py -u https://example.com -t 20`
##### Delay between requests
`python3 corsy.py -u https://example.com -d 2`
##### Export results to JSON
`python3 corsy.py -i /path/urls.txt -o /path/output.json`
##### Custom HTTP headers
`python3 corsy.py -u https://example.com --headers "User-Agent: GoogleBot\nCookie: SESSION=Hacked"`
##### Skip printing tips
`-q` can be used to skip printing of `description`, `severity`, `exploitation` fields in the output.
### Tests implemented
- Pre-domain bypass
- Post-domain bypass
- Backtick bypass
- Null origin bypass
- Unescaped dot bypass
- Underscore bypass
- Invalid value
- Wild card value
- Origin reflection test
- Third party allowance test
- HTTP allowance test