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Subject: Re: ANNOUNCE: FreeBSD Security Advisory: FreeBSD-SA-00:16.golddig
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 $B$3$N%a!<%k$O(B, announce-jp $B$KN.$l$?(B

  Subject: ANNOUNCE: FreeBSD Security Advisory: FreeBSD-SA-00:16.golddig
  From: FreeBSD Security Officer <security-officer@freebsd.org>
  Date: Tue,  9 May 2000 12:15:12 -0700 (PDT)
  Message-Id: <20000509191512.385BC37BEA3@hub.freebsd.org>
  X-Sequence: announce-jp 425

 $B$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-00:16                                           Security Advisory
                                                                FreeBSD, Inc.

$B%H%T%C%/(B:	golddig port allows users to overwrite local files

$BJ,N`(B:           ports
$B%b%8%e!<%k(B:     golddig
$B9pCNF|(B:         2000-05-09
$B%/%l%8%C%H(B:	Ports Collection $B$ND4::Cf$KH/8+(B
                Discovered during internal ports collection auditing.
$B1F6AHO0O(B:       Ports Collection
$B=$@5F|(B:         2000-04-30
$B%Y%s%@$NBP1~(B:	$B%Y%s%@$HEE;R%a!<%k$K$h$kO"Mm$,$G$-$J$$(B
                Email bounced.
FreeBSD $B$K8GM-$+(B:   NO

I.   $BGX7J(B - Background

golddig $B$O(B, FreeBSD Ports Collection $B$N0l$D$H$7$FDs6!$5$l$F$$$k(B
X11 $BBP1~%2!<%`%=%U%H$G$9(B.

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

golddig $B$N(B port $B$G$O(B, $B8m$C$F(B root $B$K(B setuid $B$5$l$?%l%Y%k:n@.(B
$B%f!<%F%#%j%F%#$,%$%s%9%H!<%k$5$l$^$9(B.  $B$7$+$7(B, $B$3$l$O%f!<%6$KBP$7$F(B
$BG$0U$N%m!<%+%k%U%!%$%k$NFbMF$r>e=q$-$9$k$3$H$r2DG=$K$7$^$9(B.
$B>e=q$-2DG=$J%U%!%$%kFbMF$O(B, golddig $B%2!<%`%l%Y%k$NFbItI=8=$H$$$&(B
$BHs>o$K@)8B$5$l$?$b$N$G$"$k$?$a(B, $B$3$N%;%-%e%j%F%#>e$N<eE@$rMxMQ$7$F(B
$BB>$N%f!<%6$NFC8"$rF@$k$3$H$OIT2DG=$@$m$&$H9M$($i$l$F$$$^$9(B.

golddig $B$N(B port $B$O(B, $B%G%U%)%k%H$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$O(B, 3200 $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$9(B.  $B$3$N%;%-%e%j%F%#>e$N(B
$B<eE@$,H/8+$5$l$?$N$,%j%j!<%9;~E@$h$j8e$G$"$C$?$3$H$+$i(B, FreeBSD 4.0 $B$K(B
$B4^$^$l$k(B Ports Collection $B$K$b(B, $B$3$NLdBj$,B8:_$7$^$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%#LdBj$K(B
$BBP$7$F(B, $BFC$K2?$+$r<gD%$9$k$3$H$O$"$j$^$;$s(B($BLuCm(B: Ports Collection $B$KF~$C$F(B
$B$$$k$+$i$H$$$C$F(B, FreeBSD $B$N3+H/<T$?$A$,$=$N%"%W%j%1!<%7%g%s$,0BA4$G$"$k$H(B
$BI>2A$7$?$o$1$G$O$"$j$^$;$s(B). $B$?$@$7(B, $B%;%-%e%j%F%#LdBj$KBP$7$FBg$-$J1F6A$r(B
$B;}$D$h$&$J(B ports $B$KBP$9$k%;%-%e%j%F%#4F::$rDs6!$9$Y$/(B, $B8=:_EXNOCf$G$9(B. 

III. $B1F6AHO0O(B - Impact

$BFC8"$r;}$?$J$$%m!<%+%k%f!<%6$O(B, $BG$0U$N%U%!%$%k$NFbMF$r>e=q$-$9$k$3$H$,(B
$B2DG=$G$9(B.  $B$?$@$7(B, $B>e=q$-2DG=$JFbMF$O@)8B$5$l$F$$$^$9(B.

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

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

$B$D$.$N$$$:$l$+$K=>$C$F$/$@$5$$(B.

1) golddig $B$N(B port/package $B$,%$%s%9%H!<%k$5$l$F$$$k>l9g$K$O(B,
   $B$=$l$r:o=|$7$F$/$@$5$$(B.

2) /usr/local/bin/makelev $B$+$i(B setuid $B%S%C%H$H<h$j=|$$$F$/$@$5$$(B.
   $B$3$l$K$h$j(B, $BFC8"$r;}$?$J$$%f!<%6$O(B, $B<+J,$N=jM-$9$k%G%#%l%/%H%j0J30$G(B
   golddig $B%l%Y%k$r:n@.$7$?$j(B, $BJQ99$9$k$3$H$,$G$-$J$/$J$j$^$9(B.

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

$B$D$.$N$$$:$l$+$K=>$C$F$/$@$5$$(B.

1) Ports Collection $BA4BN$r99?7$7$F(B, golddig $B$N(B port $B$r:F%3%s%Q%$%k$9$k(B.  

2) $B0J2<$N>l=j$+$i(B, $B=$@5F|$h$j8e$K:n@.$5$l$??7$7$$(B package $B$rF~<j$7$F(B
   $B:F%$%s%9%H!<%k$9$k(B.

ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/games/golddig-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/games/golddig-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/games/golddig-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/games/golddig-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/games/golddig-2.0.tgz

$BCm0U(B: $B99?7$5$l$?(B package $B$,MxMQ$G$-$k$h$&$K$J$k$^$G(B, $B?tF|$+$+$k2DG=@-$,$"$j$^$9(B.

3) $B0J2<$N>l=j$+$i(B golddig $B$N(B $B?7$7$$(B port $B%9%1%k%H%s$r%@%&%s%m!<%I$7(B, 
   $B$=$l$rMxMQ$7$F(B golddig $B$N(B port $B$r:F%3%s%Q%$%k$9$k(B.  

http://www.freebsd.org/ports/


4) portcheckout $B%f!<%F%#%j%F%#$r;H$&$H(B, $B>e5-(B (3) $B$r<+F0E*$K(B
   $B9T$J$&$3$H$,$G$-$^$9(B.  portcheckout $B$O(B,
   /usr/ports/devel/portcheckout $B$d(B, $B0J2<$N>l=j$+$iF~<j2DG=$G$9(B. 

ftp://ftp.freebsd.org/pub/FreeBSD/ports/packages/devel/portcheckout-1.0.tgz
