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.
next prev 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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