From: npostavs@users.sourceforge.net
To: Demi Obenour <demiobenour@gmail.com>
Cc: 19350@debbugs.gnu.org
Subject: bug#19350: #19350 24.4; Incorrect quoting of %-signs for Windows command shell
Date: Sun, 14 Aug 2016 23:13:43 -0400 [thread overview]
Message-ID: <87shu6vi54.fsf@users.sourceforge.net> (raw)
In-Reply-To: <CAJEMUN8Yryixpat2OL2+9tiTbfARC2eK8uhvSKPC7bNG4w=0PA@mail.gmail.com> (Demi Obenour's message of "Sun, 14 Aug 2016 20:44:17 -0400")
Demi Obenour <demiobenour@gmail.com> writes:
> We don't know what this is being used for. For all we know, someone has written an Emacs plugin that passes a file with an attacker-controlled basename (ex.
> downloaded from the Internet) and uses this function to escape the filename before passing it to an external command, and in a context where there are unbalanced
> double quotes (say) in a known env var. Result: remote execution of arbitrary code.
Hmm, maybe we could fix this by making Emacs refuse to apply environment
variables with names ending in carets?
next prev parent reply other threads:[~2016-08-15 3:13 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-11 18:43 bug#19350: 24.4; Incorrect quoting of %-signs for Windows command shell Demetrios Obenour
2016-08-10 13:00 ` bug#19350: #19350 " Noam Postavsky
2016-08-10 16:11 ` Eli Zaretskii
2016-08-11 23:11 ` Demi Obenour
2016-08-12 0:41 ` npostavs
[not found] ` <CAJEMUN_nkRgwCF7h03x=_jdHDLGqC+DBk0=3NNJhZTx5woW8gg@mail.gmail.com>
[not found] ` <CAJEMUN-HMMJu1FTDrKEmn_8nOaMhDeE8Te2JuE7jVdvuqLtbNQ@mail.gmail.com>
2016-08-15 0:44 ` Demi Obenour
2016-08-15 3:13 ` npostavs [this message]
2016-08-15 15:01 ` Eli Zaretskii
2016-08-18 2:02 ` Demi Obenour
2016-08-18 2:21 ` Noam Postavsky
2016-08-18 11:54 ` Demi Obenour
2016-08-18 12:07 ` Noam Postavsky
2016-08-18 14:17 ` Eli Zaretskii
2016-10-03 18:47 ` Noam Postavsky
2016-10-03 19:15 ` Eli Zaretskii
[not found] ` <CAJEMUN9xcizd9rNYiZueg4gjRAcPxh4V_JZdaSt5jr-P4LRe-A@mail.gmail.com>
2016-10-03 19:38 ` Demi Obenour
2018-02-09 0:17 ` Noam Postavsky
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