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From: Leonid Krivoshein <klark.devel@gmail.com>
To: make-initrd@lists.altlinux.org
Subject: Re: [make-initrd] [PATCH v6 18/22] bootchain-interactive: initial feature
Date: Tue, 26 Oct 2021 23:25:23 +0300
Message-ID: <5331e500-a68a-bb54-9b43-5729df4c69fc@gmail.com> (raw)
In-Reply-To: <203cc85f-b12f-f3aa-1623-c6d958ef8e26@gmail.com>


26.10.2021 22:54, Leonid Krivoshein пишет:
>> $ echo $HOME
>> /home/legion
>> $ text='$HOME'
>> $ eval "v=\"$text\""
>> $ echo $v
>> /home/legion
>> $ eval "v=\"\$text\""
>> $ echo $v
>> $HOME
>
> Да, эту идею я уже понял. Но, может, лучше с set?
>
> $ text="..'; cat /etc/passwd; '.."
> $ eval "v='$x'"
> (уф, не буду показывать)!..
>
> Это я к тому, что разве \" гарантирует невыполнение произвольного кода?
> Я же мог и двойные кавычки использовать вместо одинарных:
>
> $ text="..\"; cat /etc/passwd; \".."
> $ eval "v=\"$x\""
> (уф, тоже не буду показывать)!..

Не, вот так всё нормально:

$ text="..\"; cat /etc/passwd; \".."
$ eval "v=\"\$text\""

Это я ошибся.


-- 
Best regards,
Leonid Krivoshein.



  reply	other threads:[~2021-10-26 20:25 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-26 18:58 ` Alexey Gladkov
2021-10-26 19:54   ` Leonid Krivoshein
2021-10-26 20:25     ` Leonid Krivoshein [this message]
2021-10-26 19:03 ` Alexey Gladkov
2021-10-26 20:07   ` Leonid Krivoshein

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