[SWPUCTF 2021 新生赛]easy_md5
May 1, 2025
绕过原理:md5 与 sha1 绕过
<?php
highlight_file(__FILE__);
include 'flag2.php';
if (isset($_GET['name']) && isset($_POST['password'])){
$name = $_GET['name'];
$password = $_POST['password'];
if ($name != $password && md5($name) == md5($password)){
echo $flag;
}
else {
echo "wrong!";
}
}
else {
echo 'wrong!';
}
?>
方法:数组比较
获得 flag:NSSCTF{f112765f-2a34-48ee-b7c6-f18f7cc42671}