[sudo-users] Limiting arguments on a command

Tony G. tonysk8 at gmx.net
Thu Feb 25 18:50:12 EST 2010

Hi Ian,

I don't think that CMD alias will work.

The rule: /bin/mkdir /apps/[[\:alpha\:]]*

matches your example(on the *bold "t"*) sudo /bin/mkdir /apps/*t*est1

As you are saying the command must start with /bin/mkdir /apps/*
<alfanumeric_char>*<The * is glob matching all including whitespaces or no

if you try sudo /bin/mkdir /apps/*<non_alpha_char>*est1 then it won't match
the rule and thus fail.

It might work if sudoers supports regex, but I'm not sure it does.

Besides relative paths might be injected..
sudo /rmdir * /apps/*t*est1/../../

Is this requried as root?  If not you can let the user run any command as
that user. keeping that way the ownership.

On Wed, Feb 24, 2010 at 12:09 PM, Ian Goldstein <IGoldstein at jefferies.com>wrote:

> Hello,
> I am trying to implement sudo so that a user can maintain directories and
> permission's.  I want to limit what can be on the command line to an
> argument. without necessarily creating a script wrapper
> Can somebody please help me figure out what I am missing?
> As an illustration, I have the following in my sudoers:
> User_Alias      TEST_ADMIN=usera,userb
> Cmnd_Alias      TEST_ADMIN_CMDS =      \
>                /bin/mkdir /apps/[[\:alpha\:]]*    ,\
>                /bin/rmdir /apps/[[\:alpha\:]]*    ,\
>                /bin/chown * /apps/[[\:alpha\:]]*  ,\
>                /bin/chmod * /apps/[[\:alpha\:]]*
> What this allows me to do as a user is
> sudo /bin/mkdir /apps/test1
> But it also allows me to run this which is not desirable
> sudo /bin/mkdir /apps/test1 /etc/foobar   ( creates a directory in /etc
> called foobar.)
> Thanks
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