Proof of concept
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2 Jun 2022
2 Mar 2022
Alessio Della Libera of Snyk Research Team
How to fix?
cookiecutter to version 2.1.1 or higher.
cookiecutter is a command-line utility that creates projects from cookiecutters.
Affected versions of this package are vulnerable to Command Injection via
hg argument injection. When calling the
cookiecutter function from Python code with the
checkout parameter, it is passed to the
hg checkout command in a way that additional flags can be set. The additional flags can be used to perform a command injection.
from cookiecutter.main import cookiecutter checkout = "--config=alias.checkout=!touch ./HELLO" cookiecutter('some valid hg repository', checkout=checkout)