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Re: exec and EXECSERVERS
From: |
Paul Jarc |
Subject: |
Re: exec and EXECSERVERS |
Date: |
Fri, 20 Dec 2002 14:09:52 -0500 |
User-agent: |
Gnus/5.090008 (Oort Gnus v0.08) Emacs/21.2 (i686-pc-linux-gnu) |
tb@becket.net (Thomas Bushnell, BSG) wrote:
> We don't want to change other execs, because there is no reason to
> think there is any kind of security implication for them.
Why not? Doesn't ruid!=euid have the same implications as in Unix?
(I.e., that a setuid program was executed, and no code since then has
destroyed that information.)
In Unix, if I run setuid program foo, and foo runs program bar, then
the dynamic loader, noticing that ruid!=euid, will ignore LD_PRELOAD,
etc., when loading bar. (Right?) This is because LD_PRELOAD is under
the control of a user different from the one whose privileges we have
now. Isn't the same true for the Hurd?
As I said, I really don't know the Hurd, so this is just out of
curiosity.
paul
- exec and EXECSERVERS, Alfred M. Szmidt, 2002/12/19
- Re: exec and EXECSERVERS, Thomas Bushnell, BSG, 2002/12/19
- Re: exec and EXECSERVERS, Neal H. Walfield, 2002/12/19
- Re: exec and EXECSERVERS, Alfred M. Szmidt, 2002/12/19
- Re: exec and EXECSERVERS, Thomas Bushnell, BSG, 2002/12/19
- Re: exec and EXECSERVERS, Paul Jarc, 2002/12/19
- Re: exec and EXECSERVERS, Thomas Bushnell, BSG, 2002/12/19
- Re: exec and EXECSERVERS, Paul Jarc, 2002/12/19
- Re: exec and EXECSERVERS, Thomas Bushnell, BSG, 2002/12/20
- Re: exec and EXECSERVERS,
Paul Jarc <=
- Re: exec and EXECSERVERS, Thomas Bushnell, BSG, 2002/12/20
- Re: exec and EXECSERVERS, Roland McGrath, 2002/12/20
- Re: exec and EXECSERVERS, Thomas Bushnell, BSG, 2002/12/20
- Re: exec and EXECSERVERS, Roland McGrath, 2002/12/20
- Re: exec and EXECSERVERS, Thomas Bushnell, BSG, 2002/12/20
- Re: exec and EXECSERVERS, Roland McGrath, 2002/12/20
- Re: exec and EXECSERVERS, Thomas Bushnell, BSG, 2002/12/20
- Re: exec and EXECSERVERS, Roland McGrath, 2002/12/20
- Re: exec and EXECSERVERS, Paul Jarc, 2002/12/20