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- djm@cvs.openbsd.org 2012/07/10 02:19:15

Browse Source 
[servconf.c servconf.h sshd.c sshd_config]
     Turn on systrace sandboxing of pre-auth sshd by default for new installs
     by shipping a config that overrides the current UsePrivilegeSeparation=yes
     default. Make it easier to flip the default in the future by adding too.
This commit is contained in:
Damien Miller 2012-07-31 12:21:34 +10:00
parent 709a1e90d9
commit 5a5c2b9063
5 changed files with 16 additions and 10 deletions
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5
ChangeLog
View File

@ -3,6 +3,11 @@
- jmc@cvs.openbsd.org 2012/07/06 06:38:03
[ssh-keygen.c]
missing full stop in usage();
- djm@cvs.openbsd.org 2012/07/10 02:19:15
[servconf.c servconf.h sshd.c sshd_config]
Turn on systrace sandboxing of pre-auth sshd by default for new installs
by shipping a config that overrides the current UsePrivilegeSeparation=yes
default. Make it easier to flip the default in the future by adding too.
20120720
- (dtucker) Import regened moduli file.

9
servconf.c
View File

@ -1,5 +1,5 @@
/* $OpenBSD: servconf.c,v 1.227 2012/06/19 18:25:27 markus Exp $ */
/* $OpenBSD: servconf.c,v 1.228 2012/07/10 02:19:15 djm Exp $ */
/*
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
* All rights reserved
@ -285,7 +285,7 @@ fill_default_server_options(ServerOptions *options)
options->version_addendum = xstrdup("");
/* Turn privilege separation on by default */
if (use_privsep == -1)
use_privsep = PRIVSEP_ON;
use_privsep = PRIVSEP_NOSANDBOX;
#ifndef HAVE_MMAP
if (use_privsep && options->compression == 1) {
@ -770,8 +770,9 @@ static const struct multistate multistate_gatewayports[] = {
{ NULL, -1 }
};
static const struct multistate multistate_privsep[] = {
{ "sandbox", PRIVSEP_SANDBOX },
{ "yes", PRIVSEP_ON },
{ "yes", PRIVSEP_NOSANDBOX },
{ "sandbox", PRIVSEP_ON },
{ "nosandbox", PRIVSEP_NOSANDBOX },
{ "no", PRIVSEP_OFF },
{ NULL, -1 }
};

4
servconf.h
View File

@ -1,4 +1,4 @@
/* $OpenBSD: servconf.h,v 1.102 2012/06/19 18:25:28 markus Exp $ */
/* $OpenBSD: servconf.h,v 1.103 2012/07/10 02:19:15 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
@ -39,7 +39,7 @@
/* use_privsep */
#define PRIVSEP_OFF 0
#define PRIVSEP_ON 1
#define PRIVSEP_SANDBOX 2
#define PRIVSEP_NOSANDBOX 2
#define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */
#define DEFAULT_SESSIONS_MAX 10 /* Default for MaxSessions */

4
sshd.c
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@ -1,4 +1,4 @@
/* $OpenBSD: sshd.c,v 1.392 2012/06/30 14:35:09 markus Exp $ */
/* $OpenBSD: sshd.c,v 1.393 2012/07/10 02:19:15 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -635,7 +635,7 @@ privsep_preauth(Authctxt *authctxt)
/* Store a pointer to the kex for later rekeying */
pmonitor->m_pkex = &xxx_kex;
if (use_privsep == PRIVSEP_SANDBOX)
if (use_privsep == PRIVSEP_ON)
box = ssh_sandbox_init();
pid = fork();
if (pid == -1) {

4
sshd_config
View File

@ -1,4 +1,4 @@
# $OpenBSD: sshd_config,v 1.86 2012/04/12 02:43:55 djm Exp $
# $OpenBSD: sshd_config,v 1.87 2012/07/10 02:19:15 djm Exp $
# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.
@ -99,7 +99,7 @@ AuthorizedKeysFile .ssh/authorized_keys
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
#UsePrivilegeSeparation yes
UsePrivilegeSeparation sandbox # Default for new installations.
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0