view src/proto/map.pro @ 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 ca6bc7c04163
children
line wrap: on
line source

/* map.c */
mapblock_T *get_maphash_list(int state, int c);
mapblock_T *get_buf_maphash_list(int state, int c);
int is_maphash_valid(void);
int do_map(int maptype, char_u *arg, int mode, int abbrev);
void map_clear_mode(buf_T *buf, int mode, int local, int abbr);
int mode_str2flags(char_u *modechars);
int map_to_exists(char_u *str, char_u *modechars, int abbr);
int map_to_exists_mode(char_u *rhs, int mode, int abbr);
char_u *set_context_in_map_cmd(expand_T *xp, char_u *cmd, char_u *arg, int forceit, int isabbrev, int isunmap, cmdidx_T cmdidx);
int ExpandMappings(char_u *pat, regmatch_T *regmatch, int *numMatches, char_u ***matches);
int check_abbr(int c, char_u *ptr, int col, int mincol);
char_u *eval_map_expr(mapblock_T *mp, int c);
char_u *vim_strsave_escape_csi(char_u *p);
void vim_unescape_csi(char_u *p);
int makemap(FILE *fd, buf_T *buf);
int put_escstr(FILE *fd, char_u *strstart, int what);
void check_map_keycodes(void);
char_u *check_map(char_u *keys, int mode, int exact, int ign_mod, int abbr, mapblock_T **mp_ptr, int *local_ptr);
void f_hasmapto(typval_T *argvars, typval_T *rettv);
void f_maplist(typval_T *argvars, typval_T *rettv);
void f_maparg(typval_T *argvars, typval_T *rettv);
void f_mapcheck(typval_T *argvars, typval_T *rettv);
void f_mapset(typval_T *argvars, typval_T *rettv);
void init_mappings(void);
void add_map(char_u *map, int mode, int nore);
int langmap_adjust_mb(int c);
void langmap_init(void);
char *did_set_langmap(optset_T *args);
void ex_abbreviate(exarg_T *eap);
void ex_map(exarg_T *eap);
void ex_unmap(exarg_T *eap);
void ex_mapclear(exarg_T *eap);
void ex_abclear(exarg_T *eap);
/* vim: set ft=c : */