php curl ip伪造

PHP

2020-10-22 · 4541

php如何使用curl伪造IP来源的方法
php如何使用curl伪造IP来源

<?php
$ch = curl_init();
$url = "http://localhost/target_ip.php";
$header = array('CLIENT-IP:58.68.44.61','X-FORWARDED-FOR:58.68.44.61',);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
$page_content = curl_exec($ch);curl_close($ch);
echo $page_content;
?>

请求的目标文件---target_ip.php:

<?php
echo getenv('HTTP_CLIENT_IP');
echo getenv('HTTP_X_FORWARDED_FOR');
echo getenv('REMOTE_ADDR');
?>

目标文件target_ip里面的IP打印顺序是目前很多开源系统的IP获取顺序访问fake_ip.php,看到结果: 58.68.44.61

58.68.44.61 127.0.0.1
最后，为大家提供二个小例子。例1:

<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://localhost/2.php");
curl_setopt($ch, CURLOPT_HTTPHEADER, 
      array('X-FORWARDED-FOR:8.8.8.8', 'CLIENT-IP:8.8.8.8')); //构造
IPcurl_setopt($ch, CURLOPT_REFERER, "http://bbs.it-home.org/ "); //构造来路
curl_setopt($ch, CURLOPT_HEADER, 1);
$out = curl_exec($ch);curl_close($ch);
?>

例2：

<?php
function getClientIp() {
if (!empty($_SERVER["HTTP_CLIENT_IP"]))
$ip = $_SERVER["HTTP_CLIENT_IP"];
else if (!empty($_SERVER["HTTP_X_FORWARDED_FOR"]))
$ip = $_SERVER["HTTP_X_FORWARDED_FOR"];
else if (!empty($_SERVER["REMOTE_ADDR"]))
$ip = $_SERVER["REMOTE_ADDR"];
else$ip = "err";
return $ip;
}
echo "IP: " . getClientIp() . "";
echo "referer: " . $_SERVER["HTTP_REFERER"];
?>

转载原文地址：http://www.jb100.net/html/content-10-562-1.html

关键评论：

如果服务器优先使用REMOTE_ADDR来检测ip的话，那就没作用了

怎样防止ip伪造：