From owner-announce-jp@jp.freebsd.org  Sun Jul 16 09:11:36 2000
Received: (from daemon@localhost)
	by castle.jp.freebsd.org (8.9.3+3.2W/8.7.3) id JAA20485;
	Sun, 16 Jul 2000 09:11:36 +0900 (JST)
	(envelope-from owner-announce-jp@jp.FreeBSD.org)
Message-ID: <20000716001135.3647.qmail@smtp.246.ne.jp>
To: announce-jp@jp.FreeBSD.org
Reply-To: doc-jp@jp.freebsd.org
In-Reply-To: <20000705230822.B2E6837BAD9@hub.freebsd.org>
References: <20000705230822.B2E6837BAD9@hub.freebsd.org>
X-Mailer: Mew version 1.94.2 on Emacs 19.28 / Mule 2.3 (SUETSUMUHANA)
Mime-Version: 1.0
Content-Type: Text/Plain; charset=iso-2022-jp
Content-Transfer-Encoding: 7bit
Date: Sun, 16 Jul 2000 09:11:12 +0900
From: Koga Youichirou <y-koga@jp.freebsd.org>
X-Dispatcher: imput version 20000228(IM140)
X-ML-maintainer: owner-announce-jp@jp.FreeBSD.org
Precedence: list
X-Distribute: distribute version 2.1 (Alpha) patchlevel 24e+000315
X-Sequence: announce-jp 484
Subject: Re: ANNOUNCE: FreeBSD Ports Security Advisory:
 FreeBSD-SA-00:28.majordomo
Errors-To: owner-announce-jp@jp.freebsd.org
Sender: owner-announce-jp@jp.freebsd.org


 $B$3$N%a!<%k$O(B, announce-jp $B$KN.$l$?(B

  Subject: ANNOUNCE: FreeBSD Ports Security Advisory: FreeBSD-SA-00:28.majordomo
  From: FreeBSD Security Advisories <security-advisories@freebsd.org>
  Date: Wed,  5 Jul 2000 16:08:22 -0700 (PDT)
  Message-Id: <20000705230822.B2E6837BAD9@hub.freebsd.org>
  X-Sequence: announce-jp 468

 $B$rF|K\8lLu$7$?$b$N$G$9(B. 

 $B86J8$O(B PGP $B=pL>$5$l$F$$$^$9$,(B, $B$3$NF|K\8lLu$O(B PGP $B=pL>$5$l$F$$$^$;$s(B. 
 $B%Q%C%AEy$NFbMF$,2~cb$5$l$F$$$J$$$3$H$r3NG'$9$k$?$a$K(B PGP $B$N%A%'%C%/$r(B
 $B9T$J$&$K$O(B, $B86J8$r;2>H$7$F$/$@$5$$(B. 

 $BF|K\8lLu$O(B FreeBSD $BF|K\8l%I%-%e%a%s%F!<%7%g%s%W%m%8%'%/%H(B(doc-jp)$B$,;29M$N(B
 $B$?$a$KDs6!$9$k$b$N$G(B, doc-jp $B$O(B $B$=$NFbMF$K$D$$$F$$$+$J$kJ]>Z$b$$$?$7$^$;$s(B.
 $BF|K\8lLu$K$D$$$F$N$*Ld$$9g$o$;$O(B doc-jp@jp.FreeBSD.org $B$^$G$*4j$$$7$^$9(B.

--($B$3$3$+$i(B)
=============================================================================
FreeBSD-SA-00:28                                           Security Advisory
                                                                FreeBSD, Inc.

$B%H%T%C%/(B:	majordomo is not safe to run on multi-user machines

$BJ,N`(B:		ports
$B%b%8%e!<%k(B:	majordomo
$B9pCNF|(B:		2000-07-05
$B1F6AHO0O(B:	Ports Collection
$B=$@5F|(B:		$BK\J8;2>H$N$3$H(B
$B%Y%s%@$N%9%F!<%?%9(B:	$BLdBj$K$D$$$FJ8=q2=$7$F$$$k(B
FreeBSD $B$K8GM-$+(B:	NO

I.   $BGX7J(B - Background

majordomo $B$O(B, $B?M5$$N$"$k%a!<%j%s%0%j%9%H4IM}%7%9%F%`$G$9(B. 

II.  $BLdBj$N>\:Y(B - Problem Description

majordomo $B$K$OJ#?t$N(B Perl $B%9%/%j%W%H$,4^$^$l$F$$$^$9(B. $B$=$N%9%/%j%W%H72(B
$B$O(B, $B%a!<%j%s%0%j%9%H$N4IM}5!G=$rDs6!$9$k$?$a$K(B, setuid $B$5$l$?(B wrapper 
$B%W%m%0%i%`$+$i<B9T$5$l$^$9(B. $B$7$+$7(B, $B$3$l$i$N%9%/%j%W%H$K$O(B, $BHsFC8"%f!<(B
$B%6$,(B majordomo $B$N%f!<%68"8B$GG$0U$N%3%^%s%I$r<B9T$G$-$F$7$^$&B?$/$N<e(B
$BE@$,$"$j$^$9(B. $B$3$l$O%a!<%j%s%0%j%9%H$N%G!<%?$rFI$_=q$-$G$-$F$7$^$&$H$$(B
$B$&$3$H$G$9(B. 

majordomo $B$N(B port $B$O%G%U%)%k%H$G%$%s%9%H!<%k$5$l$k$b$N$G$O$J$/(B,
FreeBSD $B%7%9%F%`$N0lIt$r9=@.$9$k$b$N$G$b$"$j$^$;$s(B. $B$=$l$i$O(B, 3400 $B$r(B
$BD6$($k%5!<%I%Q!<%F%#@=$N%"%W%j%1!<%7%g%s$,$9$0$K%$%s%9%H!<%k$G$-$k7A$G(B
$B<}$a$i$l$F$$$k(B FreeBSD Ports Collection $B$N0lIt$G$9(B. 

FreeBSD $B$G$O(B, $B$3$N$h$&$J%5!<%I%Q!<%F%#@=%"%W%j%1!<%7%g%s$N%;%-%e%j%F%#(B
$BLdBj$KBP$7$F(B, $BFC$K2?$+$r<gD%$9$k$3$H$O$"$j$^$;$s(B ($BLuCm(B: Ports
Collection $B$KF~$C$F$$$k$+$i$H$$$C$F(B, FreeBSD $B$N3+H/<T$?$A$,$=$N%"%W%j(B
$B%1!<%7%g%s$,0BA4$G$"$k$HI>2A$7$?$o$1$G$O$"$j$^$;$s(B). $B$?$@$7(B, $B%;%-%e%j(B
$B%F%#LdBj$KBP$7$FBg$-$J1F6A$r;}$D$h$&$J(B ports $B$KBP$9$k%;%-%e%j%F%#4F::(B
$B$rDs6!$9$Y$/(B, $B8=:_EXNOCf$G$9(B. 

III. $B1F6AHO0O(B - Impact

$B%m!<%+%k$NHsFC8"%f!<%6$,(B majordomo $B$N%f!<%68"8B$G%3%^%s%I$r<B9T2DG=$G(B
$B$9(B. $B$3$l$O(B, $B%a!<%j%s%0%j%9%H$NEPO?%G!<%?$r;2>H!&JQ99$G$-$k$3$H$b4^$_$^(B
$B$9(B. 

majordomo $B$N(B port/package $B$r%$%s%9%H!<%k$7$F$$$J$1$l$P(B, $B$=$N%7%9%F%`$K(B
$B$3$NLdBj$K$D$$$F$N%;%-%e%j%F%#>e$N<eE@$O$"$j$^$;$s(B.

IV.  $BBP1~:v(B - Workaround

majordomo $B$N(B port/package $B$r%$%s%9%H!<%k$7$F$$$k>l9g(B, $B$=$l$r%"%s%$%s%9(B
$B%H!<%k$9$k(B. $B$"$k$$$O(B, majordomo/ $B%G%#%l%/%H%j$H(B, $B$=$NG[2<$N%U%!%$%k72(B
$B$rE,@Z$J%Q!<%_%7%g%s$K@)8B$9$k(B. 

V.   $B=$@5=hCV(B - Solution

$B3+H/85$O(B, majordomo $B$r%$%s%9%H!<%k$7$?:]$N%G%U%)%k%H$N@_Dj$K4^$^$l$k$5(B
$B$^$6$^$J%;%-%e%j%F%#%[!<%k$r=$@5$7$J$$$3$H$r7hDj$7$F$$$k$N$G(B, $B4JC1$J2r(B
$B7hJ}K!$OB8:_$7$^$;$s(B. /usr/local/majordomo $B%G%#%l%/%H%j$*$h$S$=$NG[2<(B
$B$N%U%!%$%k72$N%Q!<%_%7%g%s$r87$7$/$9$k$3$H$G(B, $BI,MW$J5!G=$r0];}$7$?$^$^(B
$B==J,0BA4$K(B majordomo $B$r%$%s%9%H!<%k$9$k$3$H$O2DG=$@$H;W$$$^$9(B. $B$7$+$7(B, 
FreeBSD $B$N(B majordomo $B$N(B port $B$G$O$=$&$$$&$3$H$O9T$J$$$^$;$s$7(B, $B$3$N4+(B
$B9p$NBP>]HO0O30$G$9(B. 

$BK\4+9p$G$O(B, $B?.Mj$G$-$J$$%f!<%6$,B8:_$9$k%7%9%F%`>e$G$O(B, majordomo $B$N(B
$BBe$o$j$KB>$N%a!<%j%s%0%j%9%H4IM}%7%9%F%`$r;HMQ$9$k$3$H$r?d>)$7$^$9(B. 
FreeBSD $B$N(B Ports Collection $B$K$O$=$N$h$&$J%f!<%F%#%j%F%#$,$$$/$D$+B8:_(B
$B$7$^$9(B. 
