<script type="text/javascript"> var targetProtocol = "https:"; if (window.location.protocol != targetProtocol) window.location.href = targetProtocol + window.location.href.substring(window.location.protocol.length); </script>
<?php
/*云体检通用漏洞防护补丁v1.1
更新时间：2013-05-25
功能说明：防护XSS,SQL,代码执行，文件包含等多种高危漏洞
*/
$url_arr=array(
'xss'=>"\\=\\+\\/v(?:8|9|\\+|\\/)|\\%0acontent\\-(?:id|location|type|transfer\\-encoding)",
);
$args_arr=array(
'xss'=>"[\\'\\\"\\;\\*\\<\\>].*\\bon[a-zA-Z]{3,15}[\\s\\r\\n\\v\\f]*\\=|\\b(?:expression)\\(|\\<script[\\s\\\\\\/]|\\<\\!\\[cdata\\[|\\b(?:eval|alert|prompt|msgbox)\\s*\\(|url\\((?:\\#|data|javascript)",
'sql'=>"[^\\{\\s]{1}(\\s|\\b)+(?:select\\b|update\\b|insert(?:(\\/\\*.*?\\*\\/)|(\\s)|(\\+))+into\\b).+?(?:from\\b|set\\b)|[^\\{\\s]{1}(\\s|\\b)+(?:create|delete|drop|truncate|rename|desc)(?:(\\/\\*.*?\\*\\/)|(\\s)|(\\+))+(?:table\\b|from\\b|database\\b)|into(?:(\\/\\*.*?\\*\\/)|\\s|\\+)+(?:dump|out)file\\b|\\bsleep\\([\\s]*[\\d]+[\\s]*\\)|benchmark\\(([^\\,]*)\\,([^\\,]*)\\)|(?:declare|set|select)\\b.*@|union\\b.*(?:select|all)\\b|(?:select|update|insert|create|delete|drop|grant|truncate|rename|exec|desc|from|table|database|set|where)\\b.*(charset|ascii|bin|char|uncompress|concat|concat_ws|conv|export_set|hex|instr|left|load_file|locate|mid|sub|substring|oct|reverse|right|unhex)\\(|(?:master\\.\\.sysdatabases|msysaccessobjects|msysqueries|sysmodules|mysql\\.db|sys\\.database_name|information_schema\\.|sysobjects|sp_makewebtask|xp_cmdshell|sp_oamethod|sp_addextendedproc|sp_oacreate|xp_regread|sys\\.dbms_export_extension)",
'other'=>"\\.\\.[\\\\\\/].*\\%00([^0-9a-fA-F]|$)|%00[\\'\\\"\\.]");
$referer=emptyempty($_SERVER['HTTP_REFERER']) ? array() : array($_SERVER['HTTP_REFERER']);
$query_string=emptyempty($_SERVER["QUERY_STRING"]) ? array() : array($_SERVER["QUERY_STRING"]);
check_data($query_string,$url_arr);
check_data($_GET,$args_arr);
check_data($_POST,$args_arr);
check_data($_COOKIE,$args_arr);
check_data($referer,$args_arr);
function W_log($log)
{
$logpath=$_SERVER["DOCUMENT_ROOT"]."/log.txt";
$log_f=fopen($logpath,"a+");
fputs($log_f,$log."\r\n");
fclose($log_f);
}
function check_data($arr,$v) {
foreach($arr as $key=>$value)
{
if(!is_array($key))
{ check($key,$v);}
else
{ check_data($key,$v);}
if(!is_array($value))
{ check($value,$v);}
else
{ check_data($value,$v);}
}
}
function check($str,$v)
{
foreach($v as $key=>$value)
{
if (preg_match("/".$value."/is",$str)==1||preg_match("/".$value."/is",urlencode($str))==1)
{
//W_log("<br>IP: ".$_SERVER["REMOTE_ADDR"]."<br>时间: ".strftime("%Y-%m-%d %H:%M:%S")."<br>页面:".$_SERVER["PHP_SELF"]."<br>提交方式: ".$_SERVER["REQUEST_METHOD"]."<br>提交数据: ".$str);
print "您的提交带有不合法参数,谢谢合作";
exit();
}
}
}
?>
站长XSS，SQL等担忧迎刃而解！
3.PHP防御CC：
代码为酸奶博客首发,经过二次优化后发出。请先建立一个php文件,名为jiance.php,然后将以下代码放入,将php文件放入模板目录。
<?php
//代理IP直接退出
emptyempty($_SERVER['HTTP_VIA']) or exit('Access Denied');
//防止快速刷新
session_start();
$seconds = '60'; //时间段[秒]
$refresh = '25'; //刷新次数
//设置监控变量
$cur_time = time();
if(isset($_SESSION['last_time'])){
$_SESSION['refresh_times'] += 1;
}else{
$_SESSION['refresh_times'] = 1;
$_SESSION['last_time'] = $cur_time;
}
//处理监控结果
if($cur_time - $_SESSION['last_time'] < $seconds){
if($_SESSION['refresh_times'] >= $refresh){
//攻击者跳转地址
$url='http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
echo '<html><head><title>西顾5秒盾</title><h3><center><font color="#FF0000">检测到cc攻击请等待5秒跳转</font></center></h3><meta http-equiv="refresh" content="5;url=';
echo $url;
echo '"/> </head></html>';
exit();
}
}else{
$_SESSION['refresh_times'] = 0;
$_SESSION['last_time'] = $cur_time;
}
?>
include 'jianche.php';
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