From: Christopher Allan Webber <cwebber@dustycloud.org>
To: emacs-orgmode@gnu.org
Subject: Re: [BUG] [Babel] Quotes-in-strings not being escaped in python, breaking output
Date: Tue, 09 Nov 2010 16:34:19 -0600 [thread overview]
Message-ID: <87aalijfdg.fsf@dustycloud.org> (raw)
In-Reply-To: <87k4kmjuhm.fsf@dustycloud.org> (Christopher Allan Webber's message of "Tue, 09 Nov 2010 11:07:49 -0600")
I worry about this a bit because of the possible security issue: the
ability to execute arbitrary code, since the structure that gets
constructed is eval'ed.
eg:
#+BEGIN_SRC python
return [['607', 'Show license short name on the deed'],
['255', "'))(message (concat 'hello ' 'world"]]
#+END_SRC
That constructs a set of listp objects which are evaluated and look
like:
'(("607" "Show license short name on the deed") ("255" ""))
(message (concat "hello " "world"))
It doesn't seem like the second one is being evaluated but it makes me
nervous that it's being passed through eval like this at all.
Christopher Allan Webber <cwebber@dustycloud.org> writes:
> It looks like \' and " are not being escaped in
> org-babel-python-table-or-string, which is the problem.
>
> Christopher Allan Webber <cwebber@dustycloud.org> writes:
>
>> Strings with quotes in them aren't having the inner quotes escaped right
>> while read by ob-python in python. Example:
>>
>> #+BEGIN_SRC python
>> return [['607', 'Show license short name on the deed'],
>> ['255', '"Smart" 404 pages']]
>> #+END_SRC
>>
>> #+results:
>> | 607 | Show license short name on the deed | | |
>> | 255 | | Smart | 404 pages |
>>
>>
>>
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next prev parent reply other threads:[~2010-11-09 22:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-09 16:58 [BUG] [Babel] Quotes-in-strings not being escaped in python, breaking output Christopher Allan Webber
2010-11-09 17:07 ` Christopher Allan Webber
2010-11-09 22:34 ` Christopher Allan Webber [this message]
2010-11-23 1:57 ` Eric Schulte
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