From: David Safford <safford@watson.ibm.com>
To: Casey Schaufler <casey@schaufler-ca.com>
Cc: Pavel Machek <pavel@ucw.cz>,
Andrew Morton <akpm@linux-foundation.org>,
Mimi Zohar <zohar@linux.vnet.ibm.com>,
linux-security-module@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
James Morris <jmorris@namei.org>, Greg KH <greg@kroah.com>,
Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Subject: Re: [PATCH v5 00/21] EVM
Date: Thu, 26 May 2011 14:11:54 -0400 [thread overview]
Message-ID: <1306433514.24986.26.camel@localhost.localdomain> (raw)
In-Reply-To: <4DDE80FE.7010005@schaufler-ca.com>
On Thu, 2011-05-26 at 09:34 -0700, Casey Schaufler wrote:
> On 5/25/2011 11:08 PM, Pavel Machek wrote:
> > ...
> > Fourthly, is it likely to find its way to the next cellphone I buy,
> > and will it prevent me from rooting it?
> > Pavel
>
> That will of course depend on the phone vendor. You are certainly
> going to be able to vote with your checkbook (digital wallet?) but
> odds are pretty good that should EVM prove effective it will be
> ubiquitous within the next five years on embedded devices.
um, not quite the right threat model...
Rooting is normally done through an exploit of the loader
or the kernel, neither of which EVM can prevent. The phones
which have blocked rooting in hardware have done so by adding
and enforcing digital signatures on the boot images, which is
entirely orthogonal to EVM.
Whether or not the phone is rooted, IMA-Appraisal, EVM, and
the Digital Signature Extensions help protect against remote
software attacks, and offline hardware attacks on individual
files, but not against rooting itself.
dave
(happy owner of a rooted Droid)
next prev parent reply other threads:[~2011-05-26 18:11 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-16 14:44 [PATCH v5 00/21] EVM Mimi Zohar
2011-05-16 14:44 ` [PATCH v5 01/21] integrity: move ima inode integrity data management Mimi Zohar
2011-05-19 2:06 ` Serge E. Hallyn
2011-05-19 22:45 ` Mimi Zohar
2011-05-16 14:44 ` [PATCH v5 02/21] xattr: define vfs_getxattr_alloc and vfs_xattr_cmp Mimi Zohar
2011-05-19 2:11 ` Serge E. Hallyn
2011-05-16 14:44 ` [PATCH v5 03/21] evm: re-release Mimi Zohar
2011-05-19 6:05 ` Serge E. Hallyn
2011-05-19 22:49 ` Mimi Zohar
2011-05-20 11:12 ` Harald Hoyer
2011-05-20 11:21 ` Mimi Zohar
2011-05-19 21:37 ` Serge E. Hallyn
2011-05-20 12:29 ` Mimi Zohar
2011-05-20 13:43 ` Serge E. Hallyn
2011-05-16 14:44 ` [PATCH v5 04/21] evm: add support for different security.evm data types Mimi Zohar
2011-05-16 14:44 ` [PATCH v5 05/21] ima: move ima_file_free before releasing the file Mimi Zohar
2011-05-19 22:06 ` Serge E. Hallyn
2011-05-20 0:55 ` Mimi Zohar
2011-05-20 13:40 ` Serge E. Hallyn
2011-05-20 14:34 ` Mimi Zohar
2011-05-20 15:25 ` Serge E. Hallyn
2011-05-16 14:45 ` [PATCH v5 06/21] security: imbed evm calls in security hooks Mimi Zohar
2011-05-19 22:13 ` Serge E. Hallyn
2011-05-16 14:45 ` [PATCH v5 07/21] evm: evm_inode_post_removexattr Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 08/21] evm: imbed evm_inode_post_setattr Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 09/21] evm: evm_inode_post_init Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 10/21] fs: add evm_inode_post_init calls Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 11/21] evm: crypto hash replaced by shash Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 12/21] evm: add evm_inode_post_init call in btrfs Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 13/21] evm: add evm_inode_post_init call in gfs2 Mimi Zohar
2011-05-16 15:30 ` Steven Whitehouse
2011-05-16 15:50 ` Mimi Zohar
2011-05-16 16:14 ` Steven Whitehouse
2011-05-16 16:35 ` Mimi Zohar
2011-05-16 17:50 ` Mimi Zohar
2011-05-16 17:57 ` Steven Whitehouse
2011-05-16 18:20 ` Mimi Zohar
2011-05-16 18:23 ` Casey Schaufler
2011-05-16 18:48 ` Mimi Zohar
2011-05-16 19:25 ` Casey Schaufler
2011-05-19 0:55 ` Mimi Zohar
2011-05-19 9:25 ` Steven Whitehouse
2011-05-16 14:45 ` [PATCH v5 14/21] evm: add evm_inode_post_init call in jffs2 Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 15/21] evm: add evm_inode_post_init call in jfs Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 16/21] evm: add evm_inode_post_init call in xfs Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 17/21] evm: additional parameter to pass integrity cache entry 'iint' Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 18/21] evm: evm_verify_hmac must not return INTEGRITY_UNKNOWN Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 19/21] evm: replace hmac_status with evm_status Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 20/21] evm: permit only valid security.evm xattrs to be updated Mimi Zohar
2011-05-16 14:45 ` [PATCH v5 21/21] evm: add evm_inode_setattr to prevent updating an invalid security.evm Mimi Zohar
2011-05-19 0:25 ` [PATCH v5 00/21] EVM Andrew Morton
2011-05-19 1:51 ` Mimi Zohar
2011-05-20 0:51 ` James Morris
2011-05-20 1:07 ` Mimi Zohar
2011-05-20 13:06 ` David Safford
2011-05-20 14:13 ` Casey Schaufler
2011-05-26 6:08 ` Pavel Machek
2011-05-26 16:34 ` Casey Schaufler
2011-05-26 18:11 ` David Safford [this message]
2011-05-26 18:38 ` Pavel Machek
2011-05-26 19:30 ` Casey Schaufler
2011-05-26 20:02 ` Pavel Machek
2011-05-26 20:32 ` Casey Schaufler
2011-05-26 19:49 ` Mimi Zohar
2011-05-26 20:17 ` Pavel Machek
2011-05-27 17:45 ` David Safford
2011-05-29 6:58 ` Pavel Machek
2011-05-31 12:05 ` Mimi Zohar
2011-05-31 13:40 ` Valdis.Kletnieks
2011-06-01 22:11 ` Dmitry Kasatkin
2011-05-20 18:50 ` Serge E. Hallyn
2011-05-23 22:09 ` Mimi Zohar
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