logging-config-insecure-listen (S612)

Derived from the flake8-bandit linter.

What it does

Checks for insecure logging.config.listen calls.

Why is this bad?

logging.config.listen starts a server that listens for logging configuration requests. This is insecure, as parts of the configuration are passed to the built-in eval function, which can be used to execute arbitrary code.

Example

import logging

logging.config.listen(9999)

References

• Python documentation: logging.config.listen()