Re: Addendum to Rpcbind Advisory

Wietse Venema (wietse@WZV.WIN.TUE.NL)
Thu, 17 Jul 1997 13:00:02 -0400

Darn, I can't even go off the net anymore for a little eye surgery.
I will do nothing about this thing for several weeks, until I am
able to work at the screen for more than a few minutes at a time.

Wietse

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> Secure Networks Inc.
>
> Addendum to Advisory
>
> July 8, 1997
>
> Addendum to Rpcbind Advisory
>
> This Addendum corrects a factual error in the previously distributed
> advisory.
>
> Problem Description
> ~~~~~~~~~~~~~~~~~~~
>
> The released version of the advisory incorrectly states that Wieste
> Venema's rpcbind replacement does not service queries sent to a
> high-numbered udp port.
>
> Technical Details
> ~~~~~~~~~~~~~~~~~
>
> For a detailed description of the problem, please see the original
> advisory, at http://www.secnet.com/...
>
> Impact
> ~~~~~~
>
> Wieste Venema's rpcbind replacement will service portmapper requests sent
> to a high-numbered udp port. However access control imposed by the rpcbind
> replacement will behave normally, even for queries sent to that
> high-numbered port.
>
>
> Additional Information
> ~~~~~~~~~~~~~~~~~~~~~~
>
> Past Secure Networks advisories can be found at
> ftp://ftp.secnet.com/pub/advisories, and Secure Networks papers can be
> found at ftp://ftp.secnet.com/pub/papers.
>
> The error in the advisory was pointed out to us by Casper Dik,
> Casper.Dik@holland.sun.com.
>
> Wieste Venema's rpcbind can be obtained at ftp://ftp.win.tue.nl/pub/security.
>
> Feel free to send responses and commments to sni@secnet.com. If you
> should wish to encrypt such traffic, please use the Secure Networks Inc.
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>
> Copyright Notice
> ~~~~~~~~~~~~~~~~
>
> The contents of this advisory are Copyright (C) 1997 Secure Networks Inc,
> and may be distributed freely provided that no fee is charged for
> distribution, and that proper credit is given.
>
>