Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 5 Aug 1997 09:16:33 +0200
From:      j@uriah.heep.sax.de (J Wunsch)
To:        jseng@pobox.org.sg (James Seng)
Cc:        marcs@znep.com (Marc Slemko), freebsd@atipa.com (Atipa), jonz@netrail.net (Jonathan A. Zdziarski), ports@FreeBSD.ORG, security@FreeBSD.ORG
Subject:   Re: SetUID
Message-ID:  <19970805091633.IM60027@uriah.heep.sax.de>
In-Reply-To: <3.0.32.19970805161419.00a65b08@student.anu.edu.au>; from James Seng on Aug 5, 1997 16:14:28 %2B1000
References:  <3.0.32.19970805161419.00a65b08@student.anu.edu.au>

next in thread | previous in thread | raw e-mail | index | archive | help
As James Seng wrote:

> In other words, the shell script #!/bin/sh would not be suspetible to ENV
> parsing problem but the wrapper will. The easilest (and oldest) exploited
> would probably be using IFS on the posted wrapper program *8)

No.  Our shell doesn't import IFS.

> Look at wrapper which comes with sendmail if you really want something
> which is more secure.

This advise is still valid, of course.
-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19970805091633.IM60027>