From: Ben Ford <ben@kalifornia.com>
To: jesse@cats-chateau.net
Cc: Shawn Starr <spstarr@sh0n.net>,
Matti Aarnio <matti.aarnio@zmailer.org>,
linux-kernel@vger.kernel.org
Subject: Re: Disturbing news..
Date: Tue, 27 Mar 2001 21:50:41 -0800 [thread overview]
Message-ID: <3AC17BB1.8000201@kalifornia.com> (raw)
In-Reply-To: 01032806093901.11349@tabby
Jesse Pollard wrote:
> On Wed, 28 Mar 2001, Shawn Starr wrote:
>
>> Well, why can't the ELF loader module/kernel detect or have some sort of
>> restriction on modifying other/ELF binaries including itself from changing
>> the Entry point?
>>
>> There has to be a way stop this. WHY would anyone want to modify the entry
>> point anyway? (there may be some reasons but I really dont know what).
>> Even if it's user level, this cant affect files with root permissions
>> (unless root is running them or suid).
>>
>> Any idea?
>
>
> Sure - very simple. If the execute bit is set on a file, don't allow
> ANY write to the file. This does modify the permission bits slightly
> but I don't think it is an unreasonable thing to have.
>
What a pain in the ass when you are writing / updating a shell script .
. . .
next prev parent reply other threads:[~2001-03-28 13:53 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-27 21:29 [PATCH] mm/memory.c, 2.4.1 : memory leak with swap cache (updated) Richard Jerrell
2001-03-27 21:18 ` Rik van Riel
2001-03-27 23:10 ` Richard Jerrell
2001-03-27 22:57 ` Rik van Riel
2001-03-28 0:53 ` Ideas for the oom problem james
2001-03-28 0:52 ` Rik van Riel
2001-03-28 1:14 ` Doug Ledford
2001-03-28 3:21 ` Rik van Riel
2001-03-28 3:41 ` Doug Ledford
2001-03-28 3:53 ` Rik van Riel
2001-03-28 1:39 ` james
2001-03-28 5:52 ` Jonathan Morton
2001-03-28 6:16 ` Disturbing news Shawn Starr
2001-03-28 6:33 ` Disturbing news.. Idea Shawn Starr
2001-04-21 0:43 ` Serious Latency problems : 2.4.4-pre5 Shawn Starr
2001-03-28 7:19 ` Disturbing news Matti Aarnio
2001-03-28 7:27 ` Shawn Starr
2001-03-28 12:08 ` Jesse Pollard
2001-03-28 5:50 ` Ben Ford [this message]
2001-03-28 12:50 ` Walter Hofmann
2001-03-28 14:04 ` Simon Williams
2001-03-28 15:04 ` Olivier Galibert
2001-03-28 15:49 ` Simon Williams
2001-03-28 11:57 ` Ben Ford
2001-03-29 8:02 ` Helge Hafting
2001-03-28 17:51 ` Olivier Galibert
2001-03-28 12:53 ` Keith Owens
2001-03-28 13:00 ` Russell King
2001-03-28 14:10 ` Sean Hunter
2001-03-28 15:36 ` john slee
2001-03-28 16:18 ` Jonathan Lundell
2001-04-02 23:10 ` Dr. Kelsey Hudson
2001-03-28 17:29 ` Horst von Brand
2001-03-28 10:00 ` Helge Hafting
2001-03-28 13:25 ` Alexander Viro
2001-03-28 14:32 ` Romano Giannetti
2001-03-28 14:57 ` Bill Rugolsky Jr.
2001-03-28 14:57 ` Alexander Viro
2001-03-28 16:14 ` Romano Giannetti
2001-03-28 14:38 ` Ideas for the oom problem Hacksaw
2001-03-28 15:56 ` Andreas Rogge
2001-03-28 23:33 ` Hacksaw
2001-03-28 23:47 ` Tim Haynes
2001-03-29 0:12 ` Hacksaw
2001-03-27 21:51 ` [PATCH] mm/memory.c, 2.4.1 : memory leak with swap cache (updated) Linus Torvalds
-- strict thread matches above, loose matches on Subject: below --
2001-03-28 14:15 Disturbing news Jesse Pollard
2001-03-28 14:53 ` Russell King
2001-03-28 14:40 Jesse Pollard
2001-03-28 15:08 ` Russell King
2001-03-29 12:05 ` Walter Hofmann
2001-03-28 14:43 Jesse Pollard
2001-03-28 15:31 Jesse Pollard
2001-03-28 15:43 Jesse Pollard
2001-03-28 15:51 Jesse Pollard
2001-03-28 15:54 ` rmk
2001-03-28 21:19 ` Gerhard Mack
2001-03-29 17:10 Jesse Pollard
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