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Re: WU.FTPD vulnerability: gnu tar possibly others

daemon@ATHENA.MIT.EDU (Pedro Melo)
Tue Aug 20 01:44:20 1996

Date: 	Mon, 19 Aug 1996 18:53:58 GMT
Reply-To: Bugtraq List <BUGTRAQ@netspace.org>
From: Pedro Melo <melo@co.telenet.pt>
To: Multiple recipients of list BUGTRAQ <BUGTRAQ@netspace.org>
In-Reply-To:  <199608191309.OAA18348@cableol.net>

On Mon, 19 Aug 1996 14:09:19 +0100, you wrote:

>quote site exec tar  -c -v --rsh-command=commandtorunasftp -f somebox:foo foo
>
>Gnu tar allows you to specify which binary you wish to run.
>
>Fix:
>        Use a dumber tar. Also carefully evaluate any other binaries
>you have to avoid unpleasant and similar suprises.

Better Fix:
  Disable site exec. You can give the tar benefits without site exec. See
ftpconversions, if I'm not mistaken...

Melo

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