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FACT extractor

Wraps FACT unpack plugins into standalone utility. Should be able to extract most of the common container formats.

Command line usage

Quickest usage if you have docker running:

docker pull fkiecad/fact_extractor
wget https://raw.githubusercontent.com/fkie-cad/fact_extractor/master/extract.py
chmod +x extract.py
./extract.py ./relative/or/absolute/path/to/your/file

for more options see

./extract.py --help

Local setup (aka not running through docker)

Install with:

fact_extractor/install/pre_install.sh
fact_extractor/install.py

⚠️ We no longer support Ubuntu 16.04 and Python <3.7 (It may still work with a bit of tinkering, though)

⚠️ For the generic_fs unpacker plugin to work with all file system types, you may need to install extra kernel modules

sudo apt install linux-modules-extra-$(uname -r)

The tool can then be run with

fact_extractor/fact_extract.py [OPTIONS] PATH_TO_FIRMWARE

The tool is build with docker in mind. To that end it extracts all files into a directory specified in the config. The same directory also contains the meta data report. Directories are created during installation, if config is changed make sure to recreate the folder structure. It looks like:

<path_to_data_folder>
├── files
└── reports

Use docker container directly

Build with

docker build -t fact_extractor .

(Replace fact_extractor with own id if you like)

The docker execution was build so that a single shared directory can be used for container input and output. Prepare a folder on the host system that resembles

<path_to_shared_folder>
├── files
├── input
│   └── firmware_file
└── reports

where firmware_file is the file you want to unpack. Run the extraction with

docker run -v <path_to_shared_folder>:/tmp/extractor -v /dev:/dev --privileged --rm fact_extractor

(see above)

⚠️ Note that the container is run in privileged mode and shares the /dev folder. Thus the container can possibly harm your system in every way.

Contribute

The easiest way to contribute is writing your own plug-in. Our Developers Manual can be found here.

Acknowledgments

This project is partly financed by German Federal Office for Information Security (BSI) and others.

License

    Firmware Analysis and Comparison Tool (FACT) extractor
    Copyright (C) 2015-2022  Fraunhofer FKIE

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
    
    Some plug-ins may have different licenses. If so, a license file is provided in the plug-in's folder.

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Standalone Utility for FACT-like extraction

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