From: Matthew Garrett <mjg59@srcf.ucam.org>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Pavel Machek <pavel@ucw.cz>,
Chris Friesen <chris.friesen@genband.com>,
Eric Paris <eparis@parisplace.org>, Jiri Kosina <jkosina@suse.cz>,
Oliver Neukum <oneukum@suse.de>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Josh Boyer <jwboyer@gmail.com>,
linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org, linux-efi@vger.kernel.org
Subject: Re: [RFC] Second attempt at kernel secure boot support
Date: Sun, 4 Nov 2012 13:52:51 +0000 [thread overview]
Message-ID: <20121104135251.GA17894@srcf.ucam.org> (raw)
In-Reply-To: <1352020487.2427.5.camel@dabdike.int.hansenpartnership.com>
On Sun, Nov 04, 2012 at 09:14:47AM +0000, James Bottomley wrote:
> I've actually had more than enough experience with automated installs
> over my career: they're either done by paying someone or using a
> provisioning system. In either case, they provision a static image and
> boot environment description, including EFI boot services variables, so
> you can provision a default MOK database if you want the ignition image
> not to pause on firstboot.
And now you've moved the attack vector to a copy of your provisioning
system instead.
> There is obviously the question of making the provisioning systems
> secure, but it's a separate one from making boot secure.
You don't get to punt on making the kernel secure by simply asserting
that some other system can be secure instead. The chain of trust needs
to go all the way back - if your security model is based on all installs
needing a physically present end user, all installs need a physically
present end user. That's not acceptable, so we need a different security
model.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2012-11-04 13:53 UTC|newest]
Thread overview: 224+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-20 14:40 [RFC] Second attempt at kernel secure boot support Matthew Garrett
2012-09-20 14:40 ` [PATCH V2 01/10] Secure boot: Add new capability Matthew Garrett
2012-09-28 3:10 ` Serge Hallyn
2012-10-20 0:15 ` joeyli
2012-10-20 9:02 ` Matt Fleming
2012-09-20 14:40 ` [PATCH V2 02/10] PCI: Lock down BAR access in secure boot environments Matthew Garrett
2012-09-20 14:40 ` [PATCH V2 03/10] x86: Lock down IO port " Matthew Garrett
2012-09-20 14:40 ` [PATCH V2 04/10] ACPI: Limit access to custom_method Matthew Garrett
2012-09-20 14:41 ` [PATCH V2 05/10] asus-wmi: Restrict debugfs interface Matthew Garrett
2012-09-20 14:41 ` [PATCH V2 06/10] Restrict /dev/mem and /dev/kmem in secure boot setups Matthew Garrett
2012-09-20 14:41 ` [PATCH V2 07/10] Secure boot: Add a dummy kernel parameter that will switch on Secure Boot mode Matthew Garrett
2012-09-20 16:32 ` Greg KH
2012-09-20 17:40 ` Josh Boyer
2012-09-25 13:08 ` [PATCH V3 " Josh Boyer
2012-10-29 9:00 ` joeyli
2012-10-30 17:48 ` Josh Boyer
2012-10-30 19:27 ` joeyli
2012-09-21 8:20 ` [PATCH V2 " joeyli
2012-09-28 3:20 ` Serge Hallyn
2012-09-20 14:41 ` [PATCH V2 08/10] efi: Enable secure boot lockdown automatically when enabled in firmware Matthew Garrett
2012-09-28 3:21 ` Serge Hallyn
2012-10-22 13:22 ` Matt Fleming
2012-09-20 14:41 ` [PATCH V2 09/10] acpi: Ignore acpi_rsdp kernel parameter in a secure boot environment Matthew Garrett
2012-09-20 14:41 ` [PATCH V2 10/10] SELinux: define mapping for new Secure Boot capability Matthew Garrett
2012-09-21 22:55 ` [RFC] Second attempt at kernel secure boot support Eric W. Biederman
2012-09-22 15:21 ` Matthew Garrett
2012-10-29 7:49 ` Jiri Kosina
2012-10-29 17:41 ` Matthew Garrett
2012-10-31 14:50 ` Jiri Kosina
2012-10-31 14:54 ` Josh Boyer
2012-10-31 14:59 ` Shea Levy
2012-10-31 15:55 ` Alan Cox
2012-10-31 15:55 ` Jiri Kosina
2012-10-31 17:03 ` Alan Cox
2012-10-31 17:01 ` Shea Levy
2012-10-31 17:17 ` Alan Cox
2012-10-31 17:10 ` Matthew Garrett
2012-10-31 17:21 ` Alan Cox
2012-10-31 17:17 ` Matthew Garrett
2012-10-31 17:39 ` Alan Cox
2012-10-31 17:37 ` Matthew Garrett
2012-10-31 17:49 ` Alan Cox
2012-10-31 17:45 ` Matthew Garrett
2012-10-31 20:14 ` Oliver Neukum
2012-10-31 21:58 ` Chris Friesen
2012-10-31 22:00 ` Jiri Kosina
2012-10-31 22:19 ` Oliver Neukum
2012-11-01 9:08 ` James Bottomley
2012-11-01 9:20 ` Jiri Kosina
2012-11-01 9:38 ` James Bottomley
2012-11-01 9:45 ` Jiri Kosina
2012-11-01 9:59 ` James Bottomley
2012-11-01 10:06 ` Jiri Kosina
2012-11-01 14:29 ` Eric Paris
2012-11-01 14:42 ` James Bottomley
2012-11-01 14:49 ` Matthew Garrett
2012-11-01 15:06 ` James Bottomley
2012-11-01 15:17 ` Eric Paris
2012-11-01 16:26 ` Matthew Garrett
2012-11-01 15:06 ` Alan Cox
2012-11-01 16:29 ` Matthew Garrett
2012-11-01 16:40 ` Alan Cox
2012-11-01 14:59 ` Eric Paris
2012-11-01 15:11 ` Alan Cox
2012-11-01 15:18 ` James Bottomley
2012-11-01 17:50 ` Eric Paris
2012-11-01 21:03 ` James Bottomley
2012-11-01 21:06 ` Matthew Garrett
2012-11-01 21:14 ` James Bottomley
2012-11-01 21:18 ` Matthew Garrett
2012-11-01 21:35 ` Alan Cox
2012-11-01 21:31 ` Alan Cox
2012-11-01 21:28 ` Matthew Garrett
2012-11-01 21:37 ` Alan Cox
2012-11-01 21:34 ` Matthew Garrett
2012-11-01 21:58 ` Alan Cox
2012-11-01 21:57 ` Matthew Garrett
2012-11-02 8:49 ` Eric W. Biederman
2012-11-02 14:00 ` Matthew Garrett
2012-11-02 22:03 ` Eric W. Biederman
2012-11-02 22:19 ` Chris Friesen
2012-11-02 23:46 ` Alan Cox
2012-11-03 0:23 ` Matthew Garrett
2012-11-03 0:55 ` Alan Cox
2012-11-03 0:20 ` Matthew Garrett
2012-11-03 0:47 ` Eric W. Biederman
2012-11-03 1:03 ` Alan Cox
2012-11-03 1:43 ` Matthew Garrett
2012-11-03 16:31 ` Alan Cox
2012-11-03 16:37 ` Matthew Garrett
2012-11-03 16:37 ` Eric Paris
2012-11-03 16:42 ` Matthew Garrett
2012-11-02 17:19 ` Vivek Goyal
2012-11-01 14:46 ` Alan Cox
2012-11-01 15:04 ` Eric Paris
2012-11-01 20:27 ` Pavel Machek
2012-11-01 21:02 ` Chris Friesen
2012-11-02 15:48 ` Vivek Goyal
2012-11-02 16:54 ` Chris Friesen
2012-11-02 17:03 ` Vivek Goyal
2012-11-03 23:09 ` Jiri Kosina
2012-11-05 6:38 ` Eric W. Biederman
2012-11-05 14:40 ` Jiri Kosina
2012-11-05 15:31 ` Jiri Kosina
2012-11-05 15:37 ` Chris Friesen
2012-11-05 18:22 ` Vivek Goyal
2012-11-02 16:33 ` Pavel Machek
2012-11-02 16:52 ` James Bottomley
2012-11-02 16:54 ` Matthew Garrett
2012-11-02 17:48 ` James Bottomley
2012-11-02 17:54 ` Matthew Garrett
2012-11-02 17:57 ` James Bottomley
2012-11-02 18:04 ` Matthew Garrett
2012-11-02 19:18 ` Eric Paris
2012-11-02 23:38 ` James Bottomley
2012-11-03 0:22 ` Matthew Garrett
2012-11-03 12:03 ` James Bottomley
2012-11-03 13:46 ` Matthew Garrett
2012-11-03 22:56 ` James Bottomley
2012-11-04 4:28 ` Matthew Garrett
2012-11-04 9:14 ` James Bottomley
2012-11-04 13:52 ` Matthew Garrett [this message]
2012-11-05 6:14 ` Eric W. Biederman
2012-11-05 7:12 ` H. Peter Anvin
2012-11-05 7:24 ` Eric W. Biederman
2012-11-05 7:40 ` H. Peter Anvin
2012-11-05 8:50 ` Eric W. Biederman
2012-11-05 8:53 ` H. Peter Anvin
2012-11-05 12:38 ` Matthew Garrett
2012-11-05 13:44 ` Alan Cox
2012-11-05 13:46 ` Matthew Garrett
2012-11-05 19:16 ` Eric W. Biederman
2012-11-05 20:25 ` Matthew Garrett
2012-11-06 2:46 ` Eric W. Biederman
2012-11-06 3:12 ` Matthew Garrett
2012-11-06 3:36 ` Eric W. Biederman
2012-11-06 3:53 ` Matthew Garrett
2012-11-06 5:19 ` Eric W. Biederman
2012-11-06 5:34 ` Matthew Garrett
2012-11-06 7:56 ` Florian Weimer
2012-11-06 15:14 ` Chris Friesen
2012-11-06 15:19 ` Jiri Kosina
2012-11-06 21:51 ` Florian Weimer
2012-11-06 21:55 ` Matthew Garrett
2012-11-06 22:06 ` Florian Weimer
2012-11-06 22:31 ` Matthew Garrett
2012-11-06 22:49 ` Alan Cox
2012-11-06 22:47 ` Matthew Garrett
[not found] ` <CAMFK0gt7oAr4ArD8FmD8QE+i4g4rSTmQjbbLcjs02xwQeXGx-A@mail.gmail.com>
2012-11-07 14:55 ` Matthew Garrett
2012-11-08 10:18 ` James Courtier-Dutton
[not found] ` <CAAMvbhFF=kb8TJ4oE+40Zrx7HD1OkD0NOYj7QEZegZKGtqDm_A@mail.gmail.com>
2012-11-08 11:19 ` Alan Cox
2012-11-06 9:12 ` Alan Cox
2012-11-06 13:17 ` Matthew Garrett
2012-11-06 8:13 ` Valdis.Kletnieks
2012-11-05 8:20 ` James Bottomley
2012-11-05 12:36 ` Matthew Garrett
2012-11-04 11:53 ` Pavel Machek
2012-11-05 21:25 ` Florian Weimer
2012-11-02 14:55 ` Vivek Goyal
2012-11-01 10:12 ` Oliver Neukum
2012-10-31 17:21 ` Jiri Kosina
2012-10-31 15:56 ` Matthew Garrett
2012-10-31 17:08 ` Alan Cox
2012-10-31 17:08 ` Shea Levy
2012-10-31 16:04 ` Jiri Kosina
2012-10-31 16:10 ` Josh Boyer
2012-10-31 15:02 ` Matthew Garrett
2012-10-31 15:05 ` Shea Levy
2012-10-31 15:09 ` Matthew Garrett
2012-11-02 15:30 ` Vivek Goyal
2012-11-02 15:42 ` Matthew Garrett
2012-11-02 15:52 ` Vivek Goyal
2012-11-02 16:22 ` Jiri Kosina
2012-11-02 18:30 ` Vivek Goyal
2012-11-02 16:35 ` Shuah Khan
2012-11-06 12:51 ` Jiri Kosina
2012-11-06 13:16 ` Matthew Garrett
2012-10-31 17:28 ` Takashi Iwai
2012-10-31 17:37 ` Matthew Garrett
2012-10-31 17:44 ` Alan Cox
2012-10-31 17:44 ` Matthew Garrett
2012-10-31 18:53 ` Takashi Iwai
2012-11-01 4:21 ` joeyli
2012-11-01 13:18 ` Alan Cox
2012-11-05 17:13 ` Takashi Iwai
2012-11-05 17:18 ` [PATCH RFC 0/4] Add firmware signature file check Takashi Iwai
2012-11-05 17:19 ` [PATCH RFC 1/4] scripts/sign-file: Allow specifying hash algorithm via -a option Takashi Iwai
2012-11-05 17:19 ` [PATCH RFC 2/4] scripts/sign-file: Support firmware signing Takashi Iwai
2012-11-05 17:20 ` [PATCH RFC 3/4] firmware: Add a signature check Takashi Iwai
2012-11-06 6:03 ` Mimi Zohar
2012-11-05 17:20 ` [PATCH RFC 4/4] firmware: Install signature files automatically Takashi Iwai
2012-11-05 18:12 ` [PATCH RFC 0/4] Add firmware signature file check Takashi Iwai
2012-11-05 20:43 ` Josh Boyer
2012-11-06 6:46 ` Takashi Iwai
2012-11-06 9:20 ` Alan Cox
2012-11-06 10:05 ` Takashi Iwai
2012-11-06 2:30 ` Ming Lei
2012-11-06 5:46 ` lee joey
2012-11-06 7:03 ` Takashi Iwai
2012-11-06 7:16 ` Ming Lei
2012-11-06 7:32 ` Takashi Iwai
2012-11-06 8:04 ` Ming Lei
2012-11-06 8:18 ` Takashi Iwai
2012-11-06 10:04 ` Ming Lei
2012-11-06 10:17 ` Takashi Iwai
2012-11-06 10:40 ` Ming Lei
2012-11-06 10:53 ` Takashi Iwai
2012-11-06 11:03 ` Ming Lei
2012-11-06 11:15 ` Alan Cox
[not found] ` <CAGB3EUTrSMDhja9Gu3h7nuZX+H2_owp8MnUNwbZuCW=_GuawqQ@mail.gmail.com>
2012-11-06 7:06 ` Takashi Iwai
2012-11-06 7:30 ` Ming Lei
2012-11-08 17:35 ` [PATCH RFC v2 " Takashi Iwai
2012-11-08 17:35 ` [PATCH RFC v2 1/4] firmware: Add the firmware signing support to scripts/sign-file Takashi Iwai
2012-11-23 6:51 ` joeyli
2012-11-08 17:35 ` [PATCH RFC v2 2/4] firmware: Add -a option " Takashi Iwai
2012-11-23 6:51 ` joeyli
2012-11-08 17:35 ` [PATCH RFC v2 3/4] firmware: Add support for signature checks Takashi Iwai
2012-11-23 6:56 ` joeyli
2012-11-23 7:34 ` Takashi Iwai
2012-11-08 17:35 ` [PATCH RFC v2 4/4] firmware: Install firmware signature files automatically Takashi Iwai
2012-11-23 6:52 ` joeyli
2012-11-06 0:01 ` [PATCH RFC 0/4] Add firmware signature file check David Howells
2012-11-06 7:01 ` Takashi Iwai
2012-11-06 0:05 ` David Howells
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