Mercurial > vim
view runtime/doc/ft_ps1.txt @ 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 | 43593a5d873f |
| children |
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*ft_ps1.txt* A Windows PowerShell syntax plugin for Vim Author: Peter Provost <https://www.github.com/PProvost> License: Apache 2.0 URL: https://github.com/PProvost/vim-ps1 INTRODUCTION *ps1-syntax* This plugin provides Vim syntax, indent and filetype detection for Windows PowerShell scripts, modules, and XML configuration files. ABOUT *ps1-about* Grab the latest version or report a bug on GitHub: https://github.com/PProvost/vim-ps1 FOLDING *ps1-folding* The ps1 syntax file provides syntax folding (see |:syn-fold|) for script blocks and digital signatures in scripts. When 'foldmethod' is set to "syntax" then function script blocks will be folded unless you use the following in your .vimrc or before opening a script: > :let g:ps1_nofold_blocks = 1 < Digital signatures in scripts will also be folded unless you use: > :let g:ps1_nofold_sig = 1 < Note: syntax folding might slow down syntax highlighting significantly, especially for large files. COMPILER *ps1-compiler* The powershell `:compiler` script configures |:make| to execute the script in PowerShell. It tries to pick a smart default PowerShell command: `pwsh` if available and `powershell` otherwise, but you can customize the command: > :let g:ps1_makeprg_cmd = '/path/to/pwsh' < To configure whether to show the exception type information: > :let g:ps1_efm_show_error_categories = 1 < KEYWORD LOOKUP *ps1-keyword* To look up keywords using PowerShell's Get-Help, press the |K| key. For more convenient paging, the pager `less` should be installed, which is included in many Linux distributions and in macOS. Many other distributions are available for Windows like https://chocolatey.org/packages/less/. Make sure `less` is in a directory listed in the `PATH` environment variable, which chocolatey above does. ------------------------------------------------------------------------------ vim:ft=help: