Date: Tue, 24 Oct 1995 03:23:07 +0300 (MSK) From: =?KOI8-R?Q?=E1=CE=C4=D2=C5=CA_=FE=C5=D2=CE=CF=D7?= (aka Andrey A. Chernov, Black Mage) <ache@astral.msk.su> To: "Justin T. Gibbs" <gibbs@freefall.freebsd.org> Cc: ache@freefall.freebsd.org, freebsd-hackers@freebsd.org, John Polstra <jdp@polstra.com> Subject: Re: ld.so, LD_NOSTD_PATH, and suid/sgid programs Message-ID: <Dah73Zm0GT@ache.dialup.demos.ru> In-Reply-To: <199510240014.RAA21318@aslan.cdrom.com>; from "Justin T. Gibbs" at Mon, 23 Oct 1995 17:14:34 -0700 References: <199510240014.RAA21318@aslan.cdrom.com>
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In message <199510240014.RAA21318@aslan.cdrom.com> Justin T. Gibbs writes: >>In message <199510232319.QAA21109@aslan.cdrom.com> Justin T. Gibbs >> writes: >> >>>UN*X systems have clasically given you a shotgun powerfull enough >>>to blow your foot off. If you are knowledgeable enough to use >>>LD_NOSTD_PATH, then you should know its effects. Since it is not >>>a security problem, I don't think it should be removed (as I said >>>in other mail on this subject). >> >>Well, but already existen shell scripts, i.e. admin things knows >>nothing about possibility of failing via LD_NOSTD_PATH. >>I.e. when they calls "su -c ..." they assume that this command >>NOT fails. They even disable ^C somethimes to be shure. >>But LD_NOSTD_PATH as very recent addition and I see no one >>script which care of it. >But anyone who sets LD_NOSTD_PATH will not be able to run *anything* >shared unless the have a sane LD_LIBRARY_PATH. This is not a >shell script only problem and I don't think the change is appropriate. Well, we have a lot static utils, i.e. whole /bin, /sbin and few from other places. They still works in this situation. Moreover, current shared shell works too, it is already in memory. -- 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
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