Hack.lu CTF 2018 – Baby PHP
<?php require_once(‘flag.php’); error_reporting(0); if(!isset($_GET[‘msg’])){ highlight_file(__FILE__); die(); } @$msg = $_GET[‘msg’]; if(@file_get_contents($msg)!==”Hello Challenge!”){ die(‘Wow so rude!!!!1’); } echo “Hello Hacker! Have a look around.\n”; @$k1=$_GET[‘key1’]; @$k2=$_GET[‘key2’]; $cc = 1337;$bb = 42; if(intval($k1) !== $cc || $k1 === $cc){ die(“lol no\n”); } if(strlen($k2) == $bb){ if(preg_match(‘/^\d+＄/’, $k2) && !is_numeric($k2)){ if($k2 == $cc){ @$cc = $_GET[‘cc’]; } } […]
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