Just deployed a blockchain node? Have some tea.
Deployed a node? Have a cup.
Teatime is an RPC attack framework aimed at making it easy to spot misconfigurations in blockchain nodes. It detects a large variety of issues, ranging from information leaks to open accounts, and configuration manipulation.
The goal is to enable tools scanning for vulnerable nodes and minimizing the risk of node-based attacks due to common vulnerabilities. Teatime uses a plugin-based architecture, so extending the library with your own checks is straightforward.
Please note that this library is still a PoC and lacks documentation. If there are plugins you would like to see, feel free to contact me on Twitter!
Teatime runs on Python 3.6+.
To get started, simply run
$ pip3 install teatime
Alternatively, clone the repository and run
$ pip3 install .
Or directly through Python’s
$ python3 setup.py install
To get started, simply instantiate a
Scanner class and pass in the
target IP, port, node type, and a list of instantiated plugins. Consider the
following sample to check whether a node is synced and mining:
from teatime.scanner import Scanner from teatime.plugins.context import NodeType from teatime.plugins.eth1 import NodeSync, MiningStatus TARGET_IP = "127.0.0.1" TARGET_PORT = 8545 INFURA_URL = "Infura API Endpoint" def get_scanner(): return Scanner( ip=TARGET_IP, port=TARGET_PORT, node_type=NodeType.GETH, plugins=[ NodeSync(infura_url=INFURA_URL, block_threshold=10), MiningStatus(should_mine=False) ] ) if __name__ == '__main__': scanner = get_scanner() report = scanner.run() print(report.to_dict())
Check out the examples directory for more small samples! Teatime is fully typed, so also feel free to explore options in your IDE if reading the documentation is not your preferred choice. :)
The future of Teatime is uncertain, even though I would love to add broader checks that go beyond RPC interfaces, specifically for technologies such as:
- Ethereum 2.0
If you want to integrate plugins for smaller, less meaningful chains such as Bitcoin or Ethereum knock-offs, feel free to fork the project and integrate them separately.
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