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Date: Thu, 22 Jul 2021 23:30:27 +0200
From: Jakub Wilk <jwilk@...lk.net>
To: <oss-security@...ts.openwall.com>
Subject: Re: ipython3 may execute code from the current
 working directory

* Jakub Wilk <jwilk@...lk.net>, 2021-07-22, 13:35:
>* Georgi Guninski <gguninski@...il.com>, 2021-07-22, 11:52:
>>Summary: under certain circumstances, ipython3 may execute code from 
>>the current working directory.
>
>Looks like this might be intentional? Or at least there's an option to 
>turn off this behavior:
>
>https://github.com/ipython/ipython/blob/7.25.0/IPython/core/shellapp.py#L219

BTW, I used https://github.com/jwilk/python-syspath-tracker to locate 
the code that tampers with sys.path.

>However, in some Debian packages (at least 5.8.0-1 from Debian 
>buster), even --ignore-cwd doesn't help, because /usr/bin/python3 
>looks like this:

Oops, I meant /usr/bin/ipython3 of course.

-- 
Jakub Wilk

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