From: Mimi Zohar <zohar@linux.vnet.ibm.com>
To: "Serge E. Hallyn" <serge@hallyn.com>,
Roberto Sassu <roberto.sassu@huawei.com>
Cc: linux-integrity@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, silviu.vlasceanu@huawei.com
Subject: Re: [PATCH v2 06/15] ima: add parser of digest lists metadata
Date: Sat, 18 Nov 2017 18:23:30 -0500 [thread overview]
Message-ID: <1511047410.5920.111.camel@linux.vnet.ibm.com> (raw)
In-Reply-To: <20171118042030.GA13456@mail.hallyn.com>
Hi Serge,
On Fri, 2017-11-17 at 22:20 -0600, Serge E. Hallyn wrote:
> On Tue, Nov 07, 2017 at 11:37:01AM +0100, Roberto Sassu wrote:
> > from a predefined position (/etc/ima/digest_lists/metadata), when rootfs
> > becomes available. Digest lists must be loaded before IMA appraisal is in
> > enforcing mode.
>
> I'm sure there's a good reason for it, but this seems weird to me.
> Why read it from a file on disk instead of accepting it through say
> a securityfile write?
Assuming that the concept of a white list is something we want to
support, then at minimum the list needs to be signed and verified.
Instead of defining a new Kconfig pathname option, a securityfs file
could read it, like the IMA policy.
Mimi
WARNING: multiple messages have this Message-ID (diff)
From: zohar@linux.vnet.ibm.com (Mimi Zohar)
To: linux-security-module@vger.kernel.org
Subject: [PATCH v2 06/15] ima: add parser of digest lists metadata
Date: Sat, 18 Nov 2017 18:23:30 -0500 [thread overview]
Message-ID: <1511047410.5920.111.camel@linux.vnet.ibm.com> (raw)
In-Reply-To: <20171118042030.GA13456@mail.hallyn.com>
Hi Serge,
On Fri, 2017-11-17 at 22:20 -0600, Serge E. Hallyn wrote:
> On Tue, Nov 07, 2017 at 11:37:01AM +0100, Roberto Sassu wrote:
> > from a predefined position (/etc/ima/digest_lists/metadata), when rootfs
> > becomes available. Digest lists must be loaded before IMA appraisal is in
> > enforcing mode.
>
> I'm sure there's a good reason for it, but this seems weird to me.
> Why read it from a file on disk instead of accepting it through say
> a securityfile write?
Assuming that the concept of a white list is something we want to
support, then at minimum the list needs to be signed and verified.
Instead of defining a new Kconfig pathname option, a securityfs file
could read it, like the IMA policy.
Mimi
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next prev parent reply other threads:[~2017-11-18 23:23 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-07 10:36 [PATCH v2 00/15] ima: digest list feature Roberto Sassu
2017-11-07 10:36 ` Roberto Sassu
2017-11-07 10:36 ` [PATCH v2 01/15] ima: generalize ima_read_policy() Roberto Sassu
2017-11-07 10:36 ` Roberto Sassu
2017-11-07 10:36 ` [PATCH v2 02/15] ima: generalize ima_write_policy() Roberto Sassu
2017-11-07 10:36 ` Roberto Sassu
2017-11-07 10:36 ` [PATCH v2 03/15] ima: generalize policy file operations Roberto Sassu
2017-11-07 10:36 ` Roberto Sassu
2017-11-07 10:36 ` [PATCH v2 04/15] ima: use ima_show_htable_value to show hash table data Roberto Sassu
2017-11-07 10:36 ` Roberto Sassu
2017-11-07 10:37 ` [PATCH v2 05/15] ima: add functions to manage digest lists Roberto Sassu
2017-11-07 10:37 ` Roberto Sassu
2017-11-07 10:37 ` [PATCH v2 06/15] ima: add parser of digest lists metadata Roberto Sassu
2017-11-07 10:37 ` Roberto Sassu
2017-11-18 4:20 ` Serge E. Hallyn
2017-11-18 4:20 ` Serge E. Hallyn
2017-11-18 23:23 ` Mimi Zohar [this message]
2017-11-18 23:23 ` Mimi Zohar
2017-11-20 9:40 ` Roberto Sassu
2017-11-20 9:40 ` Roberto Sassu
2017-11-20 13:53 ` Mimi Zohar
2017-11-20 13:53 ` Mimi Zohar
2017-11-20 13:53 ` Mimi Zohar
2017-11-20 16:52 ` Serge E. Hallyn
2017-11-20 16:52 ` Serge E. Hallyn
2017-11-20 16:52 ` Serge E. Hallyn
2017-11-20 16:52 ` Serge E. Hallyn
2017-11-07 10:37 ` [PATCH v2 07/15] ima: add parser of compact digest list Roberto Sassu
2017-11-07 10:37 ` Roberto Sassu
2017-11-07 10:37 ` [PATCH v2 08/15] ima: add parser of RPM package headers Roberto Sassu
2017-11-07 10:37 ` Roberto Sassu
2017-11-07 10:37 ` [PATCH v2 09/15] ima: introduce securityfs interfaces for digest lists Roberto Sassu
2017-11-07 10:37 ` Roberto Sassu
2017-11-07 10:37 ` [PATCH v2 10/15] ima: disable digest lookup if digest lists are not checked Roberto Sassu
2017-11-07 10:37 ` Roberto Sassu
2017-11-07 10:37 ` [PATCH v2 11/15] ima: add policy action digest_list Roberto Sassu
2017-11-07 10:37 ` Roberto Sassu
2017-11-07 10:37 ` [PATCH v2 12/15] ima: do not update security.ima if appraisal status is not INTEGRITY_PASS Roberto Sassu
2017-11-07 10:37 ` Roberto Sassu
2017-11-18 4:25 ` Serge E. Hallyn
2017-11-18 4:25 ` Serge E. Hallyn
2017-11-07 10:37 ` [PATCH v2 13/15] evm: add kernel command line option to select protected xattrs Roberto Sassu
2017-11-07 10:37 ` Roberto Sassu
2017-11-07 10:37 ` [PATCH v2 14/15] ima: add support for appraisal with digest lists Roberto Sassu
2017-11-07 10:37 ` Roberto Sassu
2017-11-07 10:37 ` [PATCH v2 15/15] ima: add Documentation/security/IMA-digest-lists.txt Roberto Sassu
2017-11-07 10:37 ` Roberto Sassu
2017-11-07 13:37 ` [PATCH v2 00/15] ima: digest list feature Mimi Zohar
2017-11-07 13:37 ` Mimi Zohar
2017-11-07 13:37 ` Mimi Zohar
2017-11-07 16:45 ` Roberto Sassu
2017-11-07 16:45 ` Roberto Sassu
2017-11-07 16:45 ` Roberto Sassu
2017-11-17 1:08 ` Kees Cook
2017-11-17 1:08 ` Kees Cook
2017-11-17 8:55 ` Roberto Sassu
2017-11-17 8:55 ` Roberto Sassu
2017-11-17 12:21 ` Mimi Zohar
2017-11-17 12:21 ` Mimi Zohar
2017-11-17 12:21 ` Mimi Zohar
2017-11-07 14:49 ` Matthew Garrett
2017-11-07 14:49 ` Matthew Garrett
2017-11-07 17:53 ` Roberto Sassu
2017-11-07 17:53 ` Roberto Sassu
2017-11-07 18:06 ` Matthew Garrett
2017-11-07 18:06 ` Matthew Garrett
2017-11-08 12:00 ` Roberto Sassu
2017-11-08 12:00 ` Roberto Sassu
2017-11-08 15:48 ` Matthew Garrett
2017-11-08 15:48 ` Matthew Garrett
2017-11-09 9:51 ` Roberto Sassu
2017-11-09 9:51 ` Roberto Sassu
2017-11-09 14:47 ` Matthew Garrett
2017-11-09 14:47 ` Matthew Garrett
2017-11-09 16:13 ` Roberto Sassu
2017-11-09 16:13 ` Roberto Sassu
2017-11-09 16:46 ` Matthew Garrett
2017-11-09 16:46 ` Matthew Garrett
2017-11-09 17:23 ` Roberto Sassu
2017-11-09 17:23 ` Roberto Sassu
2017-11-09 16:17 ` Mimi Zohar
2017-11-09 16:17 ` Mimi Zohar
2017-11-09 16:17 ` Mimi Zohar
2017-11-07 18:03 ` Safford, David (GE Global Research, US)
2017-11-07 18:03 ` Safford, David (GE Global Research, US)
2017-11-08 10:16 ` Roberto Sassu
2017-11-08 10:16 ` Roberto Sassu
2017-12-05 22:03 ` Ken Goldman
2017-12-05 22:03 ` Ken Goldman
2017-12-06 9:13 ` Roberto Sassu
2017-12-06 9:13 ` Roberto Sassu
2017-12-08 21:59 ` Ken Goldman
2017-12-11 8:26 ` Roberto Sassu
2017-12-22 15:56 ` Ken Goldman
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