Great Circle Associates Firewalls
(February 1998)
 

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Subject: Re: http server for bastion host
From: rdew @ el . nec . com (Bob De Witt)
Date: Mon, 9 Feb 1998 21:16:48 -0800
To: peter @ baileynm . com
Cc: stepken @ edina . xnc . com, emmanuel @ spprod . se, Firewalls @ GreatCircle . COM

All,

I thought I was following this thread pretty well, but ...

"peter @
 baileynm .
 com wrote on Mon, Feb 9, 1998:"

> Subject: Re: http server for bastion host
> 
> > No, because you need access to some programs, which have well known
> > wholes in it. With chroot() it's getting difficult to reach those
> > programs. After chuid() you don't have access to privileged ports.
> > If have neither (AND) it's getting difficult.
>
Why would you do a chuid() if the access to the bastion is already blocked
by logging in as another user, unless you are on the console?
>
> But, damn it, we've established that CERN HTTPD *is* one of those programs
> already. What's the point in building a jail when you lock the keys inside?
>
That being the case, how are the keys 'inside'?  The jailer controls the 
whole machine from the 'root-console', yes???

Bob De Witt,
rdew @
 el .
 nec .
 com


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