From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Jiri Kosina <jkosina@suse.cz>
Cc: David Howells <dhowells@redhat.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
jwboyer@redhat.com, pjones@redhat.com, vgoyal@redhat.com,
keescook@chromium.org, keyrings@linux-nfs.org,
linux-kernel@vger.kernel.org,
Greg KH <gregkh@linuxfoundation.org>,
Florian Weimer <fw@deneb.enyo.de>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [GIT PULL] Load keys from signed PE binaries
Date: Thu, 28 Feb 2013 22:51:15 +0000 [thread overview]
Message-ID: <20130228225115.GA12360@srcf.ucam.org> (raw)
In-Reply-To: <alpine.LRH.2.00.1302282335500.2038@twin.jikos.cz>
On Thu, Feb 28, 2013 at 11:48:06PM +0100, Jiri Kosina wrote:
> Let me formulate my point more clearly -- Microsoft very likely going to
> sign hello world EFI PE binary, no matter the contents of .keylist
> section, as they don't give a damn about this section, as it has zero
> semantic value to them, right?
>
> They sign the binary. By signing the binary, they are *NOT* establishing
> cryptographic chain of trust to the key stored in .keylist, but your
> patchset seems to imply so.
Mr Evil Blackhat's binary is then a mechanism for circumventing the
Windows trust mechanism, and as such his account is subject to
termination and his binary can be added to dbx. We'd check the binary
hash against dbx and refuse to load it on systems that have received the
update, and Mr Evil Blackhat would have to find a new bunch of identity
documents to create a new account to repeat the process.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2013-02-28 22:51 UTC|newest]
Thread overview: 124+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-21 15:47 [GIT PULL] Load keys from signed PE binaries David Howells
2013-02-21 16:39 ` Linus Torvalds
2013-02-21 16:42 ` Matthew Garrett
2013-02-21 16:58 ` Linus Torvalds
2013-02-21 17:49 ` Matthew Garrett
2013-02-21 18:03 ` Linus Torvalds
2013-02-21 18:11 ` Matthew Garrett
2013-02-22 14:05 ` Peter Jones
2013-02-25 14:46 ` Florian Weimer
2013-02-25 15:42 ` Matthew Garrett
2013-02-25 15:50 ` Florian Weimer
2013-02-25 16:14 ` Matthew Garrett
2013-02-25 16:20 ` Chris Friesen
2013-02-26 21:40 ` Florian Weimer
2013-02-26 22:19 ` Chris Friesen
2013-02-21 18:17 ` David Howells
2013-02-21 18:25 ` Matthew Garrett
2013-02-25 14:33 ` Florian Weimer
2013-02-25 15:42 ` Matthew Garrett
2013-02-21 18:25 ` Linus Torvalds
2013-02-21 18:34 ` Peter Jones
2013-02-21 18:56 ` Linus Torvalds
2013-02-21 19:10 ` Peter Jones
2013-02-21 19:10 ` Matthew Garrett
2013-02-21 20:31 ` Vivek Goyal
2013-02-21 20:32 ` Matthew Garrett
2013-02-21 20:38 ` Vivek Goyal
2013-03-18 2:12 ` Stephen Rothwell
2013-03-19 18:11 ` David Howells
2013-03-20 16:52 ` David Howells
2013-03-20 23:28 ` Stephen Rothwell
2013-02-21 20:08 ` Theodore Ts'o
2013-02-25 14:28 ` Florian Weimer
2013-02-25 15:45 ` Matthew Garrett
2013-02-26 21:08 ` Florian Weimer
2013-02-25 23:51 ` David Howells
2013-02-26 0:59 ` Greg KH
2013-02-26 2:33 ` Matthew Garrett
2013-02-26 3:02 ` Greg KH
2013-02-26 3:13 ` Matthew Garrett
2013-02-26 3:25 ` Theodore Ts'o
2013-02-26 3:28 ` Matthew Garrett
2013-02-26 3:32 ` Linus Torvalds
2013-02-26 3:42 ` Matthew Garrett
2013-02-26 3:45 ` Linus Torvalds
2013-02-26 3:48 ` Matthew Garrett
2013-02-26 4:31 ` Linus Torvalds
2013-02-26 4:57 ` Matthew Garrett
2013-02-26 15:30 ` Vivek Goyal
2013-02-26 15:38 ` Vivek Goyal
2013-02-27 17:23 ` Eric W. Biederman
2013-02-26 21:30 ` Florian Weimer
2013-02-26 21:40 ` Peter Jones
2013-02-26 22:35 ` Al Viro
2013-02-26 3:40 ` Greg KH
2013-02-26 3:45 ` Matthew Garrett
2013-02-26 3:49 ` Theodore Ts'o
2013-02-26 19:30 ` Florian Weimer
2013-02-26 19:41 ` Matthew Garrett
2013-02-26 3:31 ` Greg KH
2013-02-26 3:38 ` Matthew Garrett
2013-02-26 3:54 ` Greg KH
2013-02-26 4:04 ` Matthew Garrett
2013-02-26 4:13 ` Greg KH
2013-02-26 4:23 ` Matthew Garrett
2013-02-26 4:43 ` Linus Torvalds
2013-02-26 4:59 ` Matthew Garrett
2013-02-26 21:57 ` Geert Uytterhoeven
2013-02-26 22:06 ` Peter Jones
2013-02-27 12:32 ` Geert Uytterhoeven
2013-02-27 12:43 ` Matthew Garrett
2013-02-27 14:14 ` Peter Jones
2013-02-26 4:25 ` Dave Airlie
2013-02-26 4:45 ` Theodore Ts'o
2013-02-26 4:55 ` Dave Airlie
2013-02-26 6:04 ` Theodore Ts'o
2013-02-26 6:38 ` Theodore Ts'o
2013-02-26 10:07 ` Raymond Jennings
2013-02-26 10:21 ` Matthew Garrett
2013-02-26 16:45 ` Kent Yoder
2013-02-26 16:54 ` Peter Jones
2013-02-27 15:24 ` Theodore Ts'o
2013-02-27 17:36 ` Chris Friesen
2013-02-27 17:59 ` Theodore Ts'o
2013-02-27 19:21 ` Chris Friesen
2013-02-27 19:34 ` Theodore Ts'o
2013-02-27 19:14 ` Paolo Bonzini
2013-02-27 21:31 ` Dave Airlie
2013-02-28 6:27 ` Geert Uytterhoeven
2013-02-28 7:48 ` Paolo Bonzini
2013-02-26 19:40 ` Florian Weimer
2013-02-26 19:46 ` Matthew Garrett
2013-02-26 4:50 ` Greg KH
2013-02-28 7:57 ` Florian Weimer
2013-02-28 15:43 ` Chris Friesen
2013-02-28 19:26 ` Florian Weimer
2013-02-28 19:30 ` Matthew Garrett
2013-02-28 19:41 ` Florian Weimer
2013-02-28 19:53 ` Matthew Garrett
2013-02-28 20:23 ` Florian Weimer
2013-02-28 20:31 ` Matthew Garrett
2013-02-26 15:11 ` David Howells
2013-02-26 16:50 ` Greg KH
2013-02-26 13:34 ` Jiri Kosina
2013-02-26 14:16 ` Raymond Jennings
2013-02-27 9:35 ` ownssh
2013-02-27 10:17 ` James Courtier-Dutton
2013-02-27 11:27 ` Alexander Holler
2013-02-27 11:49 ` James Courtier-Dutton
2013-02-27 14:56 ` Matthew Garrett
2013-02-27 20:35 ` ownssh
2013-03-01 18:21 ` Matthew Garrett
2013-03-01 18:39 ` Gene Heskett
2013-02-28 22:48 ` Jiri Kosina
2013-02-28 22:51 ` Matthew Garrett [this message]
2013-02-28 23:02 ` Jiri Kosina
2013-02-28 23:05 ` Matthew Garrett
2013-02-28 23:45 ` Jiri Kosina
2013-02-28 23:47 ` Matthew Garrett
2013-02-28 23:52 ` Jiri Kosina
2013-03-01 0:00 ` Matthew Garrett
2013-03-01 0:08 ` Jiri Kosina
2013-03-01 10:00 ` Vojtech Pavlik
2013-03-01 14:30 ` Theodore Ts'o
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