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<?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[\\‘\\\"\\.]" ); $referer = empty($_SERVER[‘HTTP_REFERER‘]) ? array() : array($_SERVER[‘HTTP_REFERER‘]); $query_string = empty($_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(); } } } ?>
可以有效防护XSS,sql注射,代码执行,文件包含等多种高危漏洞。
时间: 2024-10-13 22:07:31