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From: Bart Schaefer <schaefer@brasslantern.com>
To: Zach Riggle <zachriggle@gmail.com>
Cc: zsh-users@zsh.org
Subject: Re: Overriding "builtin"
Date: Mon, 29 Aug 2022 18:41:38 -0700	[thread overview]
Message-ID: <CAH+w=7YRPUey1q1e2Wn2woBtSPxP8kxoeBTCAVyO6cfq4O8OUA@mail.gmail.com> (raw)
In-Reply-To: <CAMP9c5n1bAGmeLcv6aoVZVZOiCKqSd7h3TrbEOcFcE0rRgkrJg@mail.gmail.com>

On Mon, Aug 29, 2022 at 1:42 PM Zach Riggle <zachriggle@gmail.com> wrote:
>
> Since the environment is malicious, $PATH also cannot be trusted -- I thought "=" might be a way to guarantee that an executable at a specific absolute path does get executed instead of something else (alias, function, autoloadable, etc) but it doesn't work when specifying the full path.

You can always use relative paths.  E.g.

/../././../usr/bin/sudo
/usr/./bin/./sudo
etc.

it would be ... impractical ... to replace all possible combinations
of this with functions.


  parent reply	other threads:[~2022-08-30  1:42 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-12  1:18 Zach Riggle
2022-08-12  2:24 ` Đoàn Trần Công Danh
2022-08-12  7:12   ` Daniel Shahaf
2022-08-12  7:57     ` Stephane Chazelas
2022-08-12 18:42       ` Lawrence Velázquez
2022-08-12 19:33         ` Zach Riggle
2022-08-12 20:35           ` Lawrence Velázquez
2022-08-12 20:54           ` Bart Schaefer
2022-08-29 20:42             ` Zach Riggle
2022-08-30  1:31               ` Bart Schaefer
2022-08-30  1:41               ` Bart Schaefer [this message]
2022-08-12 13:54     ` Thomas Lauer
2022-08-12 15:41       ` Bart Schaefer
2022-08-12 16:07         ` Thomas Lauer

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