From owner-freebsd-hackers Mon Oct 23 17:05:37 1995 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id RAA08732 for hackers-outgoing; Mon, 23 Oct 1995 17:05:37 -0700 Received: from sequent.kiae.su (sequent.kiae.su [144.206.136.6]) by freefall.freebsd.org (8.6.12/8.6.6) with SMTP id RAA08722 for ; Mon, 23 Oct 1995 17:05:33 -0700 Received: by sequent.kiae.su id AA00316 (5.65.kiae-2 ); Tue, 24 Oct 1995 04:01:57 +0400 Received: by sequent.KIAE.su (UUMAIL/2.0); Tue, 24 Oct 95 04:01:56 +0300 Received: (from ache@localhost) by ache.dialup.demos.ru (8.6.11/8.6.9) id CAA07323; Tue, 24 Oct 1995 02:55:25 +0300 To: Nate Williams Cc: ache@freefall.freebsd.org, freebsd-hackers@freebsd.org, John Polstra References: <199510232318.RAA24039@rocky.sri.MT.net> In-Reply-To: <199510232318.RAA24039@rocky.sri.MT.net>; from Nate Williams at Mon, 23 Oct 1995 17:18:23 -0600 Message-Id: Organization: Olahm Ha-Yetzirah Date: Tue, 24 Oct 1995 02:55:24 +0300 (MSK) X-Mailer: Mail/@ [v2.40 FreeBSD] From: =?KOI8-R?Q?=E1=CE=C4=D2=C5=CA_=FE=C5=D2=CE=CF=D7?= (aka Andrey A. Chernov, Black Mage) X-Class: Fast Subject: Re: ld.so, LD_NOSTD_PATH, and suid/sgid programs Lines: 22 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Length: 984 Sender: owner-hackers@freebsd.org Precedence: bulk In message <199510232318.RAA24039@rocky.sri.MT.net> Nate Williams writes: >> >Can you see a security reason for disabling LD_NOSTD_PATH for suid/sgid >> >programs? If not, I think that the recent change should be removed from >> >rtld.c. >> >> In this case I keep in mind some shell script execution which calls >> setuid programs. By setiing LD_NOSTD_PATH user allows such >> programs easily fails, it is clear. >Why should a program which calls setuid programs fail in the first >place? If they are calling a setuid program it will still only look in >the 'normal' places for shlibs, which means they are safe. If user set LD_NOSTD_PATH it *NOT* look for normal places anymore. -- Andrey A. Chernov : And I rest so composedly, /Now, in my bed, ache@astral.msk.su : That any beholder /Might fancy me dead - http://dt.demos.su/~ache : Might start at beholding me, /Thinking me dead. RELCOM Team,FreeBSD Team : E.A.Poe From "For Annie" 1849