Mercurial > vim
view src/dlldata.c @ 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 | 3fc0f57ecb91 |
children |
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/********************************************************* DllData file -- generated by MIDL compiler DO NOT ALTER THIS FILE This file is regenerated by MIDL on every IDL file compile. To completely reconstruct this file, delete it and rerun MIDL on all the IDL files in this DLL, specifying this file for the /dlldata command line option *********************************************************/ #define PROXY_DELEGATION #include <rpcproxy.h> #ifdef __cplusplus extern "C" { #endif EXTERN_PROXY_FILE( if_ole ) PROXYFILE_LIST_START /* Start of list */ REFERENCE_PROXY_FILE( if_ole ), /* End of list */ PROXYFILE_LIST_END DLLDATA_ROUTINES( aProxyFileList, GET_DLL_CLSID ) #ifdef __cplusplus } /*extern "C" */ #endif /* end of generated dlldata file */