Command Injection Affecting cookiecutter package, versions [,2.1.1)


0.0
high

Snyk CVSS

    Exploit Maturity Proof of concept
    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High
Expand this section
NVD
9.8 critical

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  • Snyk ID SNYK-PYTHON-COOKIECUTTER-2414281
  • published 2 Jun 2022
  • disclosed 2 Mar 2022
  • credit Alessio Della Libera of Snyk Research Team

How to fix?

Upgrade cookiecutter to version 2.1.1 or higher.

Overview

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.

PoC

from cookiecutter.main import cookiecutter

checkout = "--config=alias.checkout=!touch ./HELLO"
cookiecutter('some valid hg repository', checkout=checkout)