RE: Is there a kernel patch to stop single user mode?
From: Ranjeet Shetye (ranjeet.shetye2_at_zultys.com)
Date: 09/24/03
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To: security-basics@securityfocus.com Date: 24 Sep 2003 11:01:21 -0700
On Wed, 2003-09-24 at 08:41, Tiago de Oliveira Quadra wrote:
> And disable USB, SERIAL and LPT ports on the BIOS?
> And put a password in BIOS?
> And lock the server on a secure RACK?
> What else?
>
> As Dave Gillett said:
> - "... is a matter of physical security, not OS security."
>
> -----Original Message-----
> From: Mike MacNeill [mailto:mmacneil@crosscountry.com]
> Sent: sexta-feira, 19 de setembro de 2003 19:10
> To: Carlos Eduardo Pinheiro; John Hebert
> Cc: security-basics@securityfocus.com
> Subject: Re: Is there a kernel patch to stop single user mode?
>
> Don't forget to remove the floppy or cdrom drive as well. Both could be
> used to boot from and then mount the drive, edit lilo.conf, rmeove the
> password etc etc...
>
> > From: "Carlos Eduardo Pinheiro" <cabeca@gmx.net>
> > Date: Fri, 19 Sep 2003 18:12:12 -0300
> > To: "John Hebert" <johnhebert@it-group.com>
> > Cc: <security-basics@securityfocus.com>
> > Subject: Re: Is there a kernel patch to stop single user mode?
> >
> > Set up a password on lilo.conf and use the option "restricted", it
> will ask
> > for the password just if a kernel parameter was specified at the
> command
> > line. i think it will solve your problem no?
> >
> > Regards,
> >
> > Carlos Eduardo Pinheiro - cabeca@gmx.net - ICQ#: 134439332
> >
> > ----- Original Message -----
> > From: "John Hebert" <johnhebert@it-group.com>
> > To: <security-basics@securityfocus.com>
> > Cc: <general@brlug.net>
> > Sent: Friday, September 19, 2003 1:13 PM
> > Subject: Is there a kernel patch to stop single user mode?
> >
> >
> >> Is there a way to stop someone with physical access to the box from
> > booting
> >> into single user mode and changing the root password? I'm not
> interested
> > in
> >> solutions that require setting a boot or poweron password in the
> BIOS. I'd
> >> like something that could be done in the Linux kernel, so as to apply
> to
> >> multiple platforms.
> >>
> >> Thanks,
> >> John Hebert
> >>
> >>
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> ------------------------------------------------------------------------
> --
> > --
> >>
> >>
> >
> >
> >
> >
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remove module support from kernel - i know its a pain to remove module
support and give up hotplug,initrd etc.
secure, self-contained, convenient - pick 2 out of 3.
-- Ranjeet Shetye Senior Software Engineer Zultys Technologies Ranjeet dot Shetye2 at Zultys dot com http://www.zultys.com/ The views, opinions, and judgements expressed in this message are solely those of the author. The message contents have not been reviewed or approved by Zultys. --------------------------------------------------------------------------- ----------------------------------------------------------------------------
- Previous message: French, Mark: "RE: protect MS Windows 95/98/Me"
- In reply to: Tiago de Oliveira Quadra: "RE: Is there a kernel patch to stop single user mode?"
- Next in thread: Per Krogh Nielsen: "RE: Is there a kernel patch to stop single user mode?"
- Reply: Per Krogh Nielsen: "RE: Is there a kernel patch to stop single user mode?"
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