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Re: [Full-Disclosure] No shell => secure?
- To: full-disclosure@xxxxxxxxxxxxxxxx
- Subject: Re: [Full-Disclosure] No shell => secure?
- From: Vincent Archer <varcher@xxxxxxxxxxx>
- Date: Mon, 12 Jul 2004 09:35:48 +0200
On Fri, Jul 09, 2004 at 02:29:28PM -0500, Ron DuFresne wrote:
> out that you will most likely end up with an unusable system. On a number
> of vender OS', if the sh shell of csh shell, hooked to root user and
> startup scripts is not the expected defaults, those OS's fail to function
> properly on and tween reboots.
What's worse, system() (which is used quite a bit, even if you're running
zero shell scripts) usually execs /bin/sh -c "your_parameter" on most
library implementations. Nuke /bin/sh, don't forget to rewrite your
C library.
--
Vincent ARCHER
varcher@xxxxxxxxxxx
Tel : +33 (0)1 40 07 47 14
Fax : +33 (0)1 40 07 47 27
Deny All - 5, rue Scribe - 75009 Paris - France
www.denyall.com
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