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view runtime/indent/rst.vim @ 33664:06b59278bfcf v9.0.2070
patch 9.0.2070: [security] disallow setting env in restricted mode
Commit: https://github.com/vim/vim/commit/6b89dd6a7257a1e2e9c7ea070b407bc4674a5118
Author: Christian Brabandt <cb@256bit.org>
Date: Thu Oct 26 22:14:17 2023 +0200
patch 9.0.2070: [security] disallow setting env in restricted mode
Problem: [security] disallow setting env in restricted mode
Solution: Setting environment variables in restricted mode could
potentially be used to execute shell commands. Disallow this.
restricted mode: disable allow setting of environment variables
Setting environment variables in restricted mode, may have some unwanted
consequences. So, for example by setting $GCONV_PATH in restricted mode
and then calling the iconv() function, one may be able to execute some
unwanted payload, because the `iconv_open()` function internally uses
the `$GCONV_PATH` variable to find its conversion data.
So let's disable setting environment variables, even so this is no
complete protection, since we are not clearing the existing environment.
I tried a few ways but wasn't successful :(
One could also argue to disable the iconv() function completely in
restricted mode, but who knows what other API functions can be
influenced by setting some other unrelated environment variables.
So let's leave it as it is currently.
closes: #13394
See: https://huntr.com/bounties/b0a2eda1-459c-4e36-98e6-0cc7d7faccfe/
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 26 Oct 2023 22:30:03 +0200 |
parents | 5c220cf30f1f |
children |
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" Vim indent file " Vim reST indent file " Language: reStructuredText Documentation Format " Maintainer: Marshall Ward <marshall.ward@gmail.com> " Previous Maintainer: Nikolai Weibull <now@bitwi.se> " Latest Revision: 2020-03-31 " 2023 Aug 28 by Vim Project (undo_indent) if exists("b:did_indent") finish endif let b:did_indent = 1 setlocal indentexpr=GetRSTIndent() setlocal indentkeys=!^F,o,O setlocal nosmartindent let b:undo_indent = "setlocal indentexpr< indentkeys< smartindent<" if exists("*GetRSTIndent") finish endif let s:itemization_pattern = '^\s*[-*+]\s' let s:enumeration_pattern = '^\s*\%(\d\+\|#\)\.\s\+' let s:note_pattern = '^\.\. ' function! s:get_paragraph_start() let paragraph_mark_start = getpos("'{")[1] return getline(paragraph_mark_start) =~ '\S' ? paragraph_mark_start : paragraph_mark_start + 1 endfunction function GetRSTIndent() let lnum = prevnonblank(v:lnum - 1) if lnum == 0 return 0 endif let ind = indent(lnum) let line = getline(lnum) let psnum = s:get_paragraph_start() if psnum != 0 if getline(psnum) =~ s:note_pattern let ind = 3 endif endif if line =~ s:itemization_pattern let ind += 2 elseif line =~ s:enumeration_pattern let ind += matchend(line, s:enumeration_pattern) endif let line = getline(v:lnum - 1) " Indent :FIELD: lines. Don’t match if there is no text after the field or " if the text ends with a sent-ender. if line =~ '^:.\+:\s\{-1,\}\S.\+[^.!?:]$' return matchend(line, '^:.\{-1,}:\s\+') endif if line =~ '^\s*$' execute lnum call search('^\s*\%([-*+]\s\|\%(\d\+\|#\)\.\s\|\.\.\|$\)', 'bW') let line = getline('.') if line =~ s:itemization_pattern let ind -= 2 elseif line =~ s:enumeration_pattern let ind -= matchend(line, s:enumeration_pattern) elseif line =~ '^\s*\.\.' let ind -= 3 endif endif return ind endfunction