CVE-2020-15873 PoC — LibreNMS SQL注入漏洞

Description

Proof of Concept of CVE-2020-15873 - Blind SQL Injection in Librenms < v1.65.1

Readme

# CVE-2020-15873
Proof of Concept of CVE-2020-15873 - Blind SQL Injection in Librenms < v1.65.1

## Pre-requisites
1. Python2.7 with Pip and BeautifulSoup4
2. Docker with [LibreNMS Container](https://hub.docker.com/r/librenms/librenms/)
3. Login to the web application and create a device using the GUI, setting the host to `127.0.0.1`.

## Usage (ensure that LibreNMS is started)
`$ python poc.py <ip addr:8000> librenms librenms`

## Development
### Debugging LibreNMS Docker Instance
1. Obtain a shell to the container:

    `$ sudo docker exec -it librenms_vuln /bin/bash`

2. To read the logs generated by LibreNMS:

    `$ tail -f /opt/librenms/logs/librenms.log`

### Debugging MariaDB Docker Instance
1. Obtain a shell to the container:
    
    `$ sudo docker exec -it librenms_db_vuln /bin/bash`

2. To experiment with the database:

    ```bash
    $ mysqld;
    mysql> use librenms;
    mysql> show tables;
    mysql> SELECT * FROM users;
    ```

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