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docker-vuln-runner

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A Docker runner for vulnhub environment.

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<h1 align="center">
  <br>
    <img src="https://raw.githubusercontent.com/cybersecsi/docker-vuln-runner/main/logo.png" alt= "Docker Vuln Runner" width="300px">
</h1>
<p align="center">
    <b>Docker Vuln Runner</b> <br />
    A Docker runner for docker-based vulnerable environments. 
<p>
<p align="center">
  <a href="https://github.com/cybersecsi/docker-vuln-runner/blob/main/README.md"><img src="https://img.shields.io/badge/Documentation-complete-green.svg?style=flat"></a>
  <a href="https://github.com/cybersecsi/docker-vuln-runner/blob/main/LICENSE.md"><img src="https://img.shields.io/badge/License-GNU%20GPL-blue"></a>
</p>

## Table of Contents
- [Overview](#overview)
- [Install](#install)
- [Local Usage](#local-usage)
- [Distributed Usage](#distributed-usage)
- [Demo](#demo)
- [Development](#development)
- [Credits](#credits)
- [License](#license)

## Overview
``vuln-runner``  is a tool that allows you to quickly run the docker vulnerable stacks.

The vulnerable stack actually supported are: 
* [vulhub repo](https://github.com/vulhub/vulhub)

At [SecSI](https://secsi.io) we found it useful to reproduce vulnerable environments for training purposes. To reproduce vulnerable environment easily, take a look at [DSP](https://secsi.io/docker-security-playground/).

## Install
You can easily install it by running:
```
pip install vuln-runner
```   
This will install three basic command:   
* **vuln-runner**: the basic module to run vuln-runner in local-mode;
* **vuln-controller**: the controller module that manages a set of **vuln-nodes** ;
* **vuln-node** : a vulnerable node that can receive commands from a vuln-controller.

## Local Usage  
It is possible to use vuln-env in local-mode. The docker environment is installed locally and it all the vulnerable stacks runs locally.

```
vuln-runner --help
```

This will display help for the tool. Here are all the switches it supports.

```
Usage: vuln-runner [OPTIONS] COMMAND [ARGS]...

Options:
  --help  Show this message and exit.

Commands:
  down              Down a list of vulnerable projects
  down-env          Down an environment
  generate-vulnenv  Generate <no_env> vulnerable environments composed of...
  init
  list              List the vulnerable names
  run               Run a list of vulnerable projects
  run-env           Run an environment taken from a JSON configuration file
  update            Update the vulnerable git repositories

```

* **Initialized the vulnerable environment:**  
```
vuln-runner init
```

[![asciicast](https://asciinema.org/a/nYJEd62OzL3WLUuigyjeChLIE.svg)](https://asciinema.org/a/nYJEd62OzL3WLUuigyjeChLIE)

* **List the vulnerable stacks:**
```
vuln-runner list
```

[![asciicast](https://asciinema.org/a/raziKJLlR6vWSbiIwY1w8kqaq.svg)](https://asciinema.org/a/raziKJLlR6vWSbiIwY1w8kqaq)

* **Run a list of vulnerable stacks:**

```
vuln-runner run vulhub.CVE-2014-3120,vulhub.CVE-2018-1270
```

[![asciicast](https://asciinema.org/a/wIOCYSrD9o5ZE6NmuCWLTTD8A.svg)](https://asciinema.org/a/wIOCYSrD9o5ZE6NmuCWLTTD8A)

* **Down the list of vulnerable stacks:**
```
vuln-runner down vulhub.CVE-2014-3120,vulhub.CVE-2018-1270
```

[![asciicast](https://asciinema.org/a/fAuTCMJHdxa5sRK0VlbfAKqcV.svg)](https://asciinema.org/a/fAuTCMJHdxa5sRK0VlbfAKqcV)

### Advanced usage: vulnerable environment  
With the previous commands you can already manage your vulnerable stacks and manually run and stop them. 
Anyway, you can also create *vulnerable environments*. 
A vulnerable environment is a set of vulnerable docker-compose stacks that has not ports' conflicts.   
You can generate a vulnerable environment descriptor in JSON format with the `generate-vulnenv` command:   
``` 
vuln-runner generate-vulnenv NO_VULNS [--no-env=<default=1>]
```

* `NO_VULNS` defines the number of vulnerable stacks for each environment. 
* `--no-env` defines the number of environments. It is useful if you want to run vuln-runner in different hosts, where each host runs a single environment.

For example, to create a JSON vulnerable descriptor with two vulnerable stack and two environments: 
```
vuln-runner generate-vulnenv 2 --no-env=2  
```

[![asciicast](https://asciinema.org/a/KxRWBVOMLymUQiWgjDDm4f6JS.svg)](https://asciinema.org/a/KxRWBVOMLymUQiWgjDDm4f6JS)

You can output into the JSON descriptor into a file an reuse with two commands: 
* **run-env**: run the set of stacks belonging to a vulnerable environment.   
```
vuln-runner run-env output.json 1
```
[![asciicast](https://asciinema.org/a/vuL2l5vL8bqRefx9EAqYlqxFC.svg)](https://asciinema.org/a/vuL2l5vL8bqRefx9EAqYlqxFC)

* **down-env**: down the vulnerable environment.

```
vuln-runner down-env output.json 1
```
[![asciicast](https://asciinema.org/a/fAuTCMJHdxa5sRK0VlbfAKqcV.svg)](https://asciinema.org/a/fAuTCMJHdxa5sRK0VlbfAKqcV)

## Distributed Usage  
It is possible to use `vuln-runner` in distributed-mode: 
1. *vuln-nodes* initialize a token and run a tcp server that listens for commands  
2. A *vuln-controller* initializes the same token and can manage the vulnerable environments     
The example architecture is shown in the following Figure:   
![image](https://user-images.githubusercontent.com/18548727/199806289-5fba4fec-7e8f-4c97-bb81-c325a7dfa681.png)

### node configuration   
1. Initializes the node: 
 
```  
vuln-runner init 
vuln-node init 
```
You have to define a token that will be used to validate the requests that comes from a controller.

2. Start the vulnerable node: 
```  
vuln-node start  
```   
From this moment the `vuln-node` listens for connections on port **4545** .  
When a vuln-node is listening for a connection the controlle is able to find it through the **discovery** step.

### controller configuration  
1. Initialize the controller  
```  
vuln-runner init 
vuln-controller init 
```

2. Discover the remote nodes  
```   
vuln-controller discovery <subnet_vulnerable_nodes> -u  
```    
Through this command the controller finds all the hosts presents in the network. 
When the `-u` option is used, the `hosts.json` configuration file present in the ~/.vulnenv folder is updated with the list of the vuln-nodes.

3. Generate the vulnerable environments   
After the configuration the `hosts.json` it is possible to generate a vulnerable environment configuration composed of `<no_env>` vulnerable scenarios. For example, the following command: 
```  
vuln-controller generate-vulnenv 2  
```

generates two vulnerable environment for each `vuln-node` discovered previosly.

4. Manage the enviornments   
To run a single vulnerable environment:  
```  
vuln-controller run-env <ip>  
```   
It is also possible to run all the vulnerable environments:   
```   
vuln-controller run-envs   
```

To shutdown the environments:   
```   
vuln-controller down-envs  
```

### Design considerations for the distributed architecture  
The token is used to authenticate the requests that comes from the controller. It is not used as secure mechanism. 
All the protocol is unencrypted, as we suppose that the environment is "unsecure-by-default". It is used to setup vulnerable machines. An attacker could potentially intercepts the requests and put them down.

You could setup firewall rules to allow the connections to the **4545** only from the controller IP host.

This is useful as the students should not be able to see that port.

## Development  
The [poetry](https://python-poetry.org/) packaging and management tool was used to build the project.  
To initialize the project: 
```
poetry install 
```

To run the several commands, you can use poetry as follows:

``` 
poetry run vuln-runner <command>  
```

## Credits
Developed by gx1 [@SecSI](https://secsi.io)

## License
*Docker Vuln Runner* is released under the [GPL LICENSE](https://github.com/cybersecsi/docker-vuln-runner/blob/main/LICENSE.md)

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