> -----Original Message-----
> From: Bill Fumerola [SMTP:[EMAIL PROTECTED]]
> Sent: Wednesday, June 30, 1999 11:54 AM
> To:   David O'Brien
> Cc:   Bill Fumerola; [EMAIL PROTECTED]
> Subject:      Re: tcpdump(1) additions.
> 
> On Wed, 30 Jun 1999, David O'Brien wrote:
> 
> 
> Hmmm.. but a non-superuser never sees any of those malicious packets,
> and
> the program is not installed suid, so how would that happen?
        [ML]  Simple.  One of these bad packets makes the currently
executing copy of tcpdump (invoked by superuser) install a backdoor on
the system.  Probably with root privileges, too.

        An actual exploit thereof is probably not that simple, but
possible nevertheless.

        /Marino


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