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Re: As seen above: use of su vs sudo

From Martin <keine-eile@online.de>
Newsgroups linux.debian.user
Subject Re: As seen above: use of su vs sudo
Date 2018-08-07 13:50 +0200
Message-ID <wk8EW-5t-17@gated-at.bofh.it> (permalink)
References <wk6Wt-7qN-1@gated-at.bofh.it> <wk8lz-8q5-7@gated-at.bofh.it>
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Am 07.08.2018 um 13:20 schrieb The Wanderer:
> On 2018-08-07 at 05:58, Martin Drescher wrote:
> 
>> Hi members,
>>
>> I'm a little... lets say thoughtful, about the use of 'su' discussed
>> at some points in this list. I have a strong opinion about su, which
>> is, avoid it whenever it is possible and use 'sudo' instead. This is
>> the case in close to a 100% in all cases I can think of. This opinion
>> is based on how both programs work and deal with pam and
>> environmental variables. Not to forget: You will not need to share
>> (or in my case, not even set, but lock that account) a root
>> password.
>>
>> And I'm curious why Debian still prefers the use of su over sudo?
> 
> I'm not sure where you get the idea that Debian does prefer that.

It is not part of the base install. Besides the statement from Jonathan Dowland earlier.

> For my own machines to date (on most if not all of which I'm the primary
> if not sole user, or at least non-remote user), I don't even permit sudo
> to be installed. (Or at least I didn't, until I decided I wanted
> ubuntu-dev-tools - which depends on it - on one such machine. I may even
> revert that decision on further consideration.)

As a system operator, you need some elevated privileges on a daily basis. How do you do that without sudo?

> My rationale for doing that is (in crude form) that to permit any
> root-level things to be done with an ordinary user's password - even
> mediated by a task-limiting mechanism such as I understand /etc/sudoers
> to be - is a security hole; not only is an ordinary user's password more
> likely to leak (whether by social engineering or by malicious code
> running as the user or by anything in between), if you're not trusted to
> have the root password in addition to your own, you shouldn't be doing
> any root-needing things in the first place.

The point is not, that ONE person needs a root password. All people intended to do privileged things will have to share this password. This is a security nightmare!

> Over the years, I've moderated that position somewhat, enough to concede
> that there may be value in being able to hand out the ability to do some
> elevated-access things without handing out the ability to do all of
> them. That would just mean I'd want to set up various other (non-root,
> non-ordinary) users, with their own passwords and the necessary access
> to do those specific things, and hand out those passwords instead. (And

So you are spreading even more passwords around the world... No.

> still probably have people use something like 'su -c' instead of sudo,
> unless sudo permits requiring the password of a user other than the one
> invoking the command.)

Ok, you have not read the sudo man page, neither understood the concept. And why you do _not_ want to use 'targetpw'. No offence, but you really need to thin about your thesis on privilege management.


Martin 

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Thread

As seen above: use of su vs sudo Martin Drescher <keine-eile@online.de> - 2018-08-07 12:00 +0200
  Re: As seen above: use of su vs sudo Joe <joe@jretrading.com> - 2018-08-07 12:50 +0200
    Re: As seen above: use of su vs sudo Jonathan Dowland <jmtd@debian.org> - 2018-08-07 13:20 +0200
      Re: As seen above: use of su vs sudo Martin Drescher <keine-eile@online.de> - 2018-08-07 13:30 +0200
        Re: As seen above: use of su vs sudo David Wright <deblis@lionunicorn.co.uk> - 2018-08-07 17:20 +0200
          Re: As seen above: use of su vs sudo Martin <keine-eile@online.de> - 2018-08-07 17:40 +0200
            Re: As seen above: use of su vs sudo Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-08-07 18:20 +0200
      Re: As seen above: use of su vs sudo Joe <joe@jretrading.com> - 2018-08-07 14:10 +0200
        Re: As seen above: use of su vs sudo likcoras <likcoras@riseup.net> - 2018-08-07 14:40 +0200
    Re: As seen above: use of su vs sudo likcoras <likcoras@riseup.net> - 2018-08-07 14:00 +0200
  Re: As seen above: use of su vs sudo Richard Owlett <rowlett@cloud85.net> - 2018-08-07 13:00 +0200
  Re: As seen above: use of su vs sudo Stephan Seitz <stse+debian@fsing.rootsland.net> - 2018-08-07 13:20 +0200
    Re: As seen above: use of su vs sudo James Allsopp <jamesaallsopp@googlemail.com> - 2018-08-07 13:30 +0200
      Re: As seen above: use of su vs sudo Curt <curty@free.fr> - 2018-08-07 13:50 +0200
        Re: As seen above: use of su vs sudo Stephan Seitz <stse+debian@fsing.rootsland.net> - 2018-08-07 14:30 +0200
          Re: As seen above: use of su vs sudo Martin <keine-eile@online.de> - 2018-08-07 14:30 +0200
        Re: As seen above: use of su vs sudo Jonathan Dowland <jmtd@debian.org> - 2018-08-07 15:20 +0200
          Re: As seen above: use of su vs sudo Martin <keine-eile@online.de> - 2018-08-07 15:50 +0200
      Re: As seen above: use of su vs sudo <tomas@tuxteam.de> - 2018-08-07 14:20 +0200
      Re: As seen above: use of su vs sudo Dave Sherohman <dave@sherohman.org> - 2018-08-07 15:30 +0200
    Re: As seen above: use of su vs sudo Martin <keine-eile@online.de> - 2018-08-07 13:40 +0200
      Re: As seen above: use of su vs sudo Stephan Seitz <stse+debian@fsing.rootsland.net> - 2018-08-07 14:30 +0200
  Re: As seen above: use of su vs sudo The Wanderer <wanderer@fastmail.fm> - 2018-08-07 13:30 +0200
    Re: As seen above: use of su vs sudo Martin <keine-eile@online.de> - 2018-08-07 13:50 +0200
      Re: As seen above: use of su vs sudo The Wanderer <wanderer@fastmail.fm> - 2018-08-07 14:10 +0200
        Re: As seen above: use of su vs sudo Martin <keine-eile@online.de> - 2018-08-07 14:30 +0200
          Re: As seen above: use of su vs sudo The Wanderer <wanderer@fastmail.fm> - 2018-08-07 15:00 +0200
            Re: As seen above: use of su vs sudo Nicolas George <george@nsup.org> - 2018-08-07 15:10 +0200
              Re: As seen above: use of su vs sudo The Wanderer <wanderer@fastmail.fm> - 2018-08-07 15:30 +0200
                Re: As seen above: use of su vs sudo Nicolas George <george@nsup.org> - 2018-08-07 15:40 +0200
                Re: As seen above: use of su vs sudo David Wright <deblis@lionunicorn.co.uk> - 2018-08-07 18:20 +0200
                Re: As seen above: use of su vs sudo Nicolas George <george@nsup.org> - 2018-08-07 18:40 +0200
                Re: As seen above: use of su vs sudo Greg Wooledge <wooledg@eeg.ccf.org> - 2018-08-07 18:50 +0200
                Re: As seen above: use of su vs sudo Michael Stone <mstone@debian.org> - 2018-08-07 19:10 +0200
                Re: As seen above: use of su vs sudo Curt <curty@free.fr> - 2018-08-07 20:10 +0200
                Re: As seen above: use of su vs sudo Nicolas George <george@nsup.org> - 2018-08-07 20:10 +0200
                Re: As seen above: use of su vs sudo Curt <curty@free.fr> - 2018-08-07 20:20 +0200
                Re: As seen above: use of su vs sudo Michael Stone <mstone@debian.org> - 2018-08-07 20:50 +0200
            Re: As seen above: use of su vs sudo Martin <keine-eile@online.de> - 2018-08-07 15:10 +0200
              Re: As seen above: use of su vs sudo The Wanderer <wanderer@fastmail.fm> - 2018-08-07 15:30 +0200
                Re: As seen above: use of su vs sudo Michael Stone <mstone@debian.org> - 2018-08-07 15:50 +0200
                Re: As seen above: use of su vs sudo Martin <keine-eile@online.de> - 2018-08-07 15:50 +0200
            Re: As seen above: use of su vs sudo Nemeth Gyorgy <friczy@freemail.hu> - 2018-08-07 21:10 +0200
              Re: As seen above: use of su vs sudo Gene Heskett <gheskett@shentel.net> - 2018-08-07 22:10 +0200
          Re: As seen above: use of su vs sudo Michael Stone <mstone@debian.org> - 2018-08-07 15:20 +0200
          Re: As seen above: use of su vs sudo Stephan Seitz <stse+debian@fsing.rootsland.net> - 2018-08-07 16:10 +0200
        Re: As seen above: use of su vs sudo Dave Sherohman <dave@sherohman.org> - 2018-08-07 15:30 +0200
          Re: As seen above: use of su vs sudo The Wanderer <wanderer@fastmail.fm> - 2018-08-07 15:40 +0200
        Re: As seen above: use of su vs sudo David Wright <deblis@lionunicorn.co.uk> - 2018-08-07 18:10 +0200
  Re: As seen above: use of su vs sudo Eike Lantzsch <zp6cge@gmx.net> - 2018-08-07 14:30 +0200
  Re: As seen above: use of su vs sudo mick crane <mick.crane@gmail.com> - 2018-08-07 16:00 +0200
  Re: As seen above: use of su vs sudo mick crane <mick.crane@gmail.com> - 2018-08-07 18:30 +0200

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