From c5889e2f6801c8454ce20d844f7e3f5b6c9543cb Mon Sep 17 00:00:00 2001 From: Ted Gould Date: Mon, 20 Aug 2012 14:44:42 -0500 Subject: Make sure we're running as the guest user before we execute the freerdp utility --- src/pam-freerdp.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'src/pam-freerdp.c') diff --git a/src/pam-freerdp.c b/src/pam-freerdp.c index 7bd2657..189c82f 100644 --- a/src/pam-freerdp.c +++ b/src/pam-freerdp.c @@ -122,12 +122,16 @@ pam_sm_authenticate (pam_handle_t *pamh, int flags, int argc, const char **argv) struct passwd * pwdent = getpwnam(username); if (pwdent == NULL) { - _exit(-1); + _exit(EXIT_FAILURE); + } + + if (setgid(pwdent->pw_gid) < 0 || setuid(pwdent->pw_uid) < 0 || + setegid(pwdent->pw_gid) < 0 || seteuid(pwdent->pw_uid) < 0) { + _exit(EXIT_FAILURE); } setenv("HOME", pwdent->pw_dir, 1); - /* TODO: Drop privs */ execvp(args[0], args); _exit(EXIT_FAILURE); break; -- cgit v1.2.3