hardenedbsd/HardenedBSD
1
0
Fork 0
mirror of https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git synced 2024-12-30 15:38:06 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

When looking for "group daemon" (since that's what's in mtree), make sure

Browse Source 
we actually look for the *group* and not the user's gid.  user daemon
has traditionally been group 31 (guest).

Also clear out the groups vector so that it doesn't inherit the groups
of the invoking user (ever run rwhod by hand before?)  Unfortunately, we
can't empty the supplemental groups list because the !&@^#! egid is stored
in there! :-(
This commit is contained in:
Peter Wemm 1996-09-07 01:43:08 +00:00
parent 62bb21530c
commit 90ff799227
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=18092
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
usr.sbin/rwhod/rwhod.c
View File

@ -66,6 +66,7 @@ static char sccsid[] = "@(#)rwhod.c 8.1 (Berkeley) 6/6/93";
#include <unistd.h>
#include <utmp.h>
#include <pwd.h>
#include <grp.h>
/*
* This version of Berkeley's rwhod has been modified to use IP multicast
@ -246,6 +247,7 @@ usage: fprintf(stderr, "usage: rwhod [ -m [ ttl ] ]\n");
exit(1);
}
setgid(unpriv_gid);
setgroups(1, &unpriv_gid); /* XXX BOGUS groups[0] = egid */
setuid(unpriv_uid);
if (!configure(s))
exit(1);
@ -320,6 +322,7 @@ run_as(uid, gid)
gid_t *gid;
{
struct passwd *pw;
struct group *gr;
pw = getpwnam(UNPRIV_USER);
if (!pw) {
@ -328,12 +331,12 @@ run_as(uid, gid)
}
*uid = pw->pw_uid;
pw = getpwnam(UNPRIV_GROUP);
if (!pw) {
syslog(LOG_ERR, "getpwnam(%s): %m", UNPRIV_GROUP);
gr = getgrnam(UNPRIV_GROUP);
if (!gr) {
syslog(LOG_ERR, "getgrnam(%s): %m", UNPRIV_GROUP);
exit(1);
}
*gid = pw->pw_gid;
*gid = gr->gr_gid;
}
/*