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https://github.com/CERTCC/SSVC

Stakeholder-Specific Vulnerability Categorization
https://github.com/CERTCC/SSVC

decision-support decision-trees prioritization vulnerabilities vulnerability vulnerability-management

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Stakeholder-Specific Vulnerability Categorization

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README 

        
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# SSVC



The Stakeholder-specific Vulnerability Categorization (SSVC) is a system for prioritizing actions during vulnerability management.

SSVC aims to avoid one-size-fits-all solutions in favor of a modular decision-making system with clearly defined and tested parts that vulnerability managers can select and use as appropriate to their context.



---



SSVC is mostly conceptual tools for vulnerability management.

These conceptual tools (how to make decisions, what should go into a decision, how to document and communicate decisions clearly, etc.) are described here.



**Note:** This repository contains the _content_ for the main SSVC documentation hosted at



## [https://certcc.github.io/SSVC/](https://certcc.github.io/SSVC/)



- If you are just looking for SSVC documentation, you should go there.

- If you are interested in contributing to the SSVC documentation, you are in the right place.



---



# What's here



Here's a quick overview of the main directories and files in this repository.



## `/docs/*`



Raw markdown and graphics files used to build the SSVC documentation website.

See [`project_docs/README.md`](project_docs/README.md) for more info.



### `/docs/ssvc-calc`



Directory with SSVC calculator using D3 graph.

See [`ssvc-calc/README.md`](docs/ssvc-calc/README.md) for more info.



A demo version of `ssvc-calc` can be found at https://certcc.github.io/SSVC/ssvc-calc/



## `/pdfs/*`



Static versions of previously issued PDF reports are stored in this directory.



## `/data/*`



The data folder contains detailed data files that define suggested prioritization results based on each combination of information on a vulnerability work item.



There are both `.csv` and `.json` files in this directory.



### `/data/csvs/*`



The `.csv` files are the primary data files used by the `ssvc.py` module.



Also included in data are the lookup tables as csv files which `ssvc_v2.py` reads in.

These files define one row per possible path through the trees as described in the documentation.

Customizing the "outcome" column in this csv is the primary recommended way that stakeholders might adapt SSVC to their environment.



### `/data/json/*`



These json files are generated examples from the python `ssvc` module.



### `/data/schema/*` and `/data/schema_examples/*`



These files are used by the `ssvc-calc` module.



## `/src/*`



This directory holds helper scripts that can make managing or using SSVC easier.



### `/src/ssvc/*`



The `ssvc` python module provides tools to work with decision points, decision point groups, and outcomes.

These modules are used to generate documentation for various [Decision Points](https://certcc.github.io/SSVC/reference/decsion_points/)



Documentation for the `ssvc` module can be found at [https://certcc.github.io/SSVC/reference/code/](https://certcc.github.io/SSVC/reference/code/)



### `src/ssvc_v2.py`



A basic Python module for interacting with the SSVC trees. `ssvc_v2.py` has

two methods: `applier_tree()` and `developer_tree()`



The two methods just loop through their respective lookup tables until

they hit a match, then return the outcome. Maybe not the best implementation,

but it worked well enough for what was needed at the time.



## Local development



Install prerequisites:



```bash

pip install -r requirements.txt

```



Start a local server:



```bash

mkdocs serve

```



Navigate to http://localhost:8001/ to see the site.



(Hint: You can use the `--dev-addr` argument with mkdocs to change the port, e.g. `mkdocs serve --dev-addr localhost:8000`)



## Contributing



- [SSVC Community Engagement](https://certcc.github.io/SSVC/about/contributing/) has more detail on how to contribute to the project.

- [SSVC Project Wiki](https://github.com/CERTCC/SSVC/wiki) for more detail how to contribute to the project (style guides, etc.)

- [CONTRIBUTING.md](CONTRIBUTING.md) for high-level information and legal details



## Citing SSVC



To reference SSVC in an academic publication, please refer to the version presented at the 2020 Workshop on Economics of Information Security (WEIS):



```

@inproceedings{spring2020ssvc,  

  title={Prioritizing vulnerability response: {A} stakeholder-specific vulnerability categorization},  

  author={Jonathan M Spring and Eric Hatleback and Allen D. Householder and Art Manion and Deana Shick},  

  address={Brussels, Belgium},  

  year={2020},  

  month = dec,  

  booktitle = {Workshop on the Economics of Information Security}  

}

```



## References



1. Spring, J., Hatleback, E., Householder, A., Manion, A., and Shick, D. "Prioritizing Vulnerability Response: A Stakeholder-Specific Vulnerability Categorization." White Paper, Software Engineering Institute, Carnegie Mellon University (2019). https://resources.sei.cmu.edu/library/asset-view.cfm?assetid=636379

2. Spring, J., Hatleback, E., Householder, A., Manion, A., and Shick, D. "Towards Improving CVSS." White Paper, Software Engineering Institute, Carnegie Mellon University (2018). https://resources.sei.cmu.edu/library/asset-view.cfm?assetid=538368