Re: [ossig] SUID problems

["Venantius Kumar" <venks@hitts.com>]

Yes, pppd uses /dev/modem -> /dev/ttyS0.

But, perhaps like Imran says, scripts are not allowed to run with root ID.
Maybe I should just write a short C programme to start this script!!


regards,
Venantius.


----- Original Message -----
From: "Uwe Dippel" <udippel@uniten.edu.my>
To: <ossig@mncc.com.my>
Sent: Monday, June 23, 2003 4:09 PM
Subject: Re: [ossig] SUID problems


> Okay, firstly, the normal user doesn't need this. Spontaneously I'd
> think this is a flaw. Of course, you might have your reasons ...
> The 'device' is anything upstream (ttySX or whatever Mandrake calls it;
> a FIFO might be the culprit as well - does pppd use one ??).
>
> HTH,
>
> Uwe
>
> On Mon, 2003-06-23 at 15:30, Venantius Kumar wrote:
> > Hi everyone,
> > I am having some permission problem with starting up pppd Mandrake 9.0.
> >
> > OK here is the situation:
> >
> > I wrote a script that starts a dialup connection to Jaring and another
> > to disconnect.  As root it works fine.
> >
> > So next what I did was changed the script's permission by giving setting
> > SUID bit ("u + s") and "o + rx".  When I ran the script as a normal
> > user, it says something like "normal user does not have permission to
> > use this device".
> >
> > Within my script I actually call "ifup ppp0".  Now if I am not mistaken,
> > SUID for a programme is supposed to assume the identity of the file's
> > owner instead of the user who initiated it.  So what can be wrong?  Is
> > there something I may be missing?
> >
> > Thanks in advance.
> >
> >
> > regards,
> > Venantius.
> >
>
>
>
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