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From: David Woodhouse <dwmw2@infradead.org>
To: Linux Audit Discussion <linux-audit@redhat.com>
Cc: Ondrej Zary <linux@rainbow-software.org>, linux-kernel@vger.kernel.org
Subject: Re: [patch] Syscall auditing - move "name=" field to the end
Date: Thu, 17 Mar 2005 02:25:01 +0000	[thread overview]
Message-ID: <1111026301.6833.38.camel@localhost.localdomain> (raw)
In-Reply-To: <20050316224117.GC28536@shell0.pdx.osdl.net>

On Wed, 2005-03-16 at 14:41 -0800, Chris Wright wrote:
> * Ondrej Zary (linux@rainbow-software.org) wrote:
> > This patch moves the "name=" field to the end of audit records. The 
> > original placement is bad because it cannot be properly parsed. It is 
> > impossible to tell if the name is "/bin/true" or "/bin/true inode=469634 
> > dev=00:00" because the "inode=" and "dev=" fields can be omitted.

Consider: 

open("/bin/true\naudit(1111008484.824:89346): ...", O_RDONLY);

I don't think this patch is enough -- either we need to escape the text
completely or just dump it as hex instead of a string. One option would
be to dump it in quotes as a string if all chars in the string are in
the range 0x20-0x7e, and as hex otherwise. That slightly complicates the
parsing, but not by much, and still gives you plain text in the majority
of cases while protecting against abuse.

-- 
dwmw2


  reply	other threads:[~2005-03-17  2:26 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-16 21:34 [patch] Syscall auditing - move "name=" field to the end Ondrej Zary
2005-03-16 22:41 ` Chris Wright
2005-03-17  2:25   ` David Woodhouse [this message]
2005-03-17 17:57     ` Chris Wright
2005-03-17 18:37       ` Steve Grubb

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