From: Bernd Eckenfels <be-mail2005@lina.inka.de>
To: Xin Zhao <uszhaoxin@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Why Ext2/3 needs immutable attribute?
Date: Mon, 18 Apr 2005 03:53:28 +0200 [thread overview]
Message-ID: <20050418015328.GA1339@lina.inka.de> (raw)
In-Reply-To: <4ae3c140504171648d587669@mail.gmail.com>
On Sun, Apr 17, 2005 at 07:48:50PM -0400, Xin Zhao wrote:
> any kernel level protection, including
> SELinux, could be disabled after the kernel is compromised. Am I
> missing some points here?
No, Immutable bit is an application of capabilities (or securelevel), you
are right.
If the kernel is compromised, the kernel is compromised. However immutable
bit can make it hard to circumvent kernel's protetion, even for root
attackers
Gruss
Bernd
next prev parent reply other threads:[~2005-04-18 1:53 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-17 15:54 Why Ext2/3 needs immutable attribute? Xin Zhao
2005-04-17 16:03 ` Willy Tarreau
2005-04-17 16:12 ` Xin Zhao
2005-04-17 16:23 ` Kyle Moffett
2005-04-17 16:27 ` Willy TARREAU
2005-04-17 19:47 ` Bernd Eckenfels
2005-04-17 23:48 ` Xin Zhao
2005-04-18 1:53 ` Bernd Eckenfels [this message]
2005-04-17 19:45 ` Bernd Eckenfels
2005-04-23 16:50 ` dean gaudet
2005-04-23 18:33 ` DervishD
2005-04-23 18:49 ` Kyle Moffett
2005-04-23 19:12 ` DervishD
2005-04-23 20:37 ` Kyle Moffett
2005-04-23 22:54 ` DervishD
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