<?php
error_reporting(0);
?>
<html lang="zh-CN">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="viewport" content="width=device-width, minimum-scale=1.0, maximum-scale=1.0, initial-scale=1.0" />
<title>GOGO</title>
</head>
<body>
<center>
<h2>GOGO</h2>
<hr>
<h3>
</center>
<?php
$flag="";
$v1=$_GET['v1'];
$v2=$_GET['v2'];
if(isset($v1) && isset($v2)){
if(!ctype_alpha($v1)){
die("v1 error");
}
if(!is_numeric($v2)){
die("v2 error");
}
if(md5($v1)==md5($v2)){
echo $flag;
}
}else{
echo "where is flag?";
}
?>
</body>
</html>
弱类型 + 0e md5
?v1=QNKCDZO&v2=240610708
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