Mercurial > vim
view runtime/autoload/adacomplete.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 | 11b656e74444 |
children |
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"------------------------------------------------------------------------------ " Description: Vim Ada omnicompletion file " Language: Ada (2005) " $Id: adacomplete.vim 887 2008-07-08 14:29:01Z krischik $ " Maintainer: Martin Krischik " $Author: krischik $ " $Date: 2008-07-08 16:29:01 +0200 (Di, 08 Jul 2008) $ " Version: 4.6 " $Revision: 887 $ " $HeadURL: https://gnuada.svn.sourceforge.net/svnroot/gnuada/trunk/tools/vim/autoload/adacomplete.vim $ " History: 24.05.2006 MK Unified Headers " 26.05.2006 MK improved search for begin of word. " 16.07.2006 MK Ada-Mode as vim-ball " 15.10.2006 MK Bram's suggestion for runtime integration " 05.11.2006 MK Bram suggested not to use include protection for " autoload " 05.11.2006 MK Bram suggested against using setlocal omnifunc " 05.11.2006 MK Bram suggested to save on spaces " Help Page: ft-ada-omni "------------------------------------------------------------------------------ if version < 700 finish endif " Section: adacomplete#Complete () {{{1 " " This function is used for the 'omnifunc' option. " function! adacomplete#Complete (findstart, base) if a:findstart == 1 return ada#User_Complete (a:findstart, a:base) else " " look up matches " if exists ("g:ada_omni_with_keywords") call ada#User_Complete (a:findstart, a:base) endif " " search tag file for matches " let l:Pattern = '^' . a:base . '.*$' let l:Tag_List = taglist (l:Pattern) " " add symbols " for Tag_Item in l:Tag_List if l:Tag_Item['kind'] == '' " " Tag created by gnat xref " let l:Match_Item = { \ 'word': l:Tag_Item['name'], \ 'menu': l:Tag_Item['filename'], \ 'info': "Symbol from file " . l:Tag_Item['filename'] . " line " . l:Tag_Item['cmd'], \ 'kind': 's', \ 'icase': 1} else " " Tag created by ctags " let l:Info = 'Symbol : ' . l:Tag_Item['name'] . "\n" let l:Info .= 'Of type : ' . g:ada#Ctags_Kinds[l:Tag_Item['kind']][1] . "\n" let l:Info .= 'Defined in File : ' . l:Tag_Item['filename'] . "\n" if has_key( l:Tag_Item, 'package') let l:Info .= 'Package : ' . l:Tag_Item['package'] . "\n" let l:Menu = l:Tag_Item['package'] elseif has_key( l:Tag_Item, 'separate') let l:Info .= 'Separate from Package : ' . l:Tag_Item['separate'] . "\n" let l:Menu = l:Tag_Item['separate'] elseif has_key( l:Tag_Item, 'packspec') let l:Info .= 'Package Specification : ' . l:Tag_Item['packspec'] . "\n" let l:Menu = l:Tag_Item['packspec'] elseif has_key( l:Tag_Item, 'type') let l:Info .= 'Datetype : ' . l:Tag_Item['type'] . "\n" let l:Menu = l:Tag_Item['type'] else let l:Menu = l:Tag_Item['filename'] endif let l:Match_Item = { \ 'word': l:Tag_Item['name'], \ 'menu': l:Menu, \ 'info': l:Info, \ 'kind': l:Tag_Item['kind'], \ 'icase': 1} endif if complete_add (l:Match_Item) == 0 return [] endif if complete_check () return [] endif endfor return [] endif endfunction adacomplete#Complete finish " 1}}} "------------------------------------------------------------------------------ " Copyright (C) 2006 Martin Krischik " " Vim is Charityware - see ":help license" or uganda.txt for licence details. "------------------------------------------------------------------------------ " vim: textwidth=78 wrap tabstop=8 shiftwidth=3 softtabstop=3 noexpandtab " vim: foldmethod=marker