php通过session防url攻击方法_PHP

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Release: 2016-05-31 18:15:34
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本文实例讲述了php通过session防url攻击方法。分享给大家供大家参考。具体实现方法如下:

通过session跟踪,可以很方便地避免url攻击的发生,php采用session防url攻击方法代码如下:

代码如下:

session_start(); 
$clean = array(); 
$email_pattern = '/^[^@s]+@([-a-z0-9]+.)+[a-z]{2,}$/i'; 
if (preg_match($email_pattern, $_POST['email'])) 
{
$clean['email'] = $_POST['email']; 
$user = $_SESSION['user']; 
$new_password = md5(uniqid(rand(), TRUE)); 
if ($_SESSION['verified']) 

/* Update Password */ 
mail($clean['email'], 'Your New Password', $new_password); 


?>


使用时URL可设置如下:
http://example.org/reset.php?user=php&email=chris%40example.org

如果reset.php信任了用户提供的这些信息,这就是一个语义URL 攻击漏洞,在此情况下,系统将会为php 帐号产生一个新密码并发送至chris@example.org,这样chris 成功地窃取了php 帐号.

希望本文所述对大家的PHP程序设计有所帮助。

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